Prevalence of text neck syndrome, its impact on neck dysfunction, and its associated factors among medical students: A cross-sectional study.

BACKGROUND: Students increasingly rely on digital devices, leading to text neck syndrome, a common overuse syndrome caused by repetitive forward neck flexion. OBJECTIVE: This study aimed to determine the prevalence of text neck syndrome among medical students and the resulting neck dysfunction and to investigate the possible associated factors. METHODS: This cross-sectional study used an online self-developed questionnaire among medical students. Students' characteristics and data about smartphone usage were evaluated for diagnosis. Individuals with at least 3 of the 6 text neck syndrome symptoms and a history of more than four hours a day spent on a smartphone were diagnosed with text neck syndrome. Neck dysfunction was measured using the neck disability index. Descriptive statistics and the chi-square test were used. P values < 0.05 were considered statistically significant. RESULTS: The study found that 31.7% of students with text neck syndrome have mild neck disabilities, with a higher proportion of females (40%). The characteristics that have a significant relation to text neck syndrome include being female (p < 0.0001), overweight (p = 0.025), being right-handed (p = 0.001), using four digital devices or more (p = 0.002), having low levels of physical activity (P = 0.018), and spending more than three hours a day sitting down (P = 0.027). CONCLUSION: More than a quarter of medical students had text neck syndrome, and most of them had a mild neck disability. Text Neck Syndrome was linked to an increased number of gadgets used, low exercise, and more time spent in a sitting position.

Comparison of neuraxial acoustic target window of the spine among rider sitting, cross leg, hamstring stretch, and classical sitting position: An observational study.

Background and Aims: To compare ultra-sonographic dimensions of acoustic target window of the spine in the participants at four different sitting positions namely cross leg sitting (CLP), hamstring stretch (HSP), classical sitting (CSP) and riders sitting position (RSP). The primary objective of this study was to measure the neuraxial acoustic target window (defined as interlaminar distance between L3-L4 lamina). The secondary objective was to compare ultra-sonographic measurements of the depth of ligamentum flavum from the skin, and to compare the diameter of intrathecal space and comfort score in the four different sitting positions. Material and Methods: This study is a prospective observational study. Eighty participants were included and positioned in four different sitting positions to perform an ultra-sonographic scan and measure various parameters of the acoustic neuraxial window. The interlaminar distance, the distance of skin from the ligamentum flavum, and the diameter of the spinal canal or intrathecal space was measured in the L3-L4 intervertebral space in different positions. Results: The mean value of interlaminar distance among four sitting positions was ranging from 1.40 cm to 1.44 cm (P value 0.725.) The distance of ligamentum flavum from skin and diameter of intrathecal space was also comparable in all the groups. The comfort score in CSP was significantly better when compared to other groups with a median score of 4 (P value < 0.001). Conclusions: There is no statistically significant difference in interlaminar distance in various sitting positions. All four positions are equally effective and can be used as an alternative to spinal/epidural intervention, but the CSP came out to be the most comfortable and more emphasis should be given to the comfort as it increases the chance of success rate of the procedure.

Assessment of a New Elbow Joint Positioning Method Using Area Detector Computed Tomography.

We propose a sitting position that achieves both high image quality and a reduced radiation dose in elbow joint imaging by area detector computed tomography (ADCT), and we compared it with the 'superman' and supine positions. The volumetric CT dose index (CTDIvol) for the sitting, superman, and supine positions were 2.7, 8.0, and 20.0 mGy and the dose length products (DLPs) were 43.4, 204.7, and 584.8 mGy • cm, respectively. In the task-based transfer function (TTF), the highest value was obtained for the sitting position in both bone and soft tissue images. The noise power spectrum (NPS) of bone images showed that the superman position had the lowest value up to approx. 1.1 cycles/mm or lower, whereas the sitting position had the lowest value when the NPS was greater than approx. 1.1 cycles/mm. The overall image quality in an observer study resulted in the following median Likert scores for Readers 1 and 2: 5.0 and 5.0 for the sitting position, 4.0 and 3.5 for the superman position, and 4.0 and 2.0 for the supine position. These results indicate that our proposed sitting position with ADCT of the elbow joint can provide superior image quality and allow lower radiation doses compared to the superman and supine positions.

Does a reclined backrest with less legroom meet the same comfort as a fixed backrest with 80 mm more leg room?

BACKGROUND: In vehicles there is often limited space for seats. This might mean that reclining the back rest reduces the legroom. The second row in a cargo van has this problem and in this limited space an upright seat and a reclined seat with less legroom was developed and tested. OBJECTIVE: The research question of this study is: Does a reclined backrest with less leg room result in the same comfort and/or discomfort as an upright backrest with more leg room? METHODS: Twenty participants are asked to sit 45 minutes in the upright seat with 8 cm more legroom and 45 minutes in the reclined seat. Ten participants started in the upright seat and ten in the reclined. Participants had to complete a comfort and discomfort questionnaire every 15 minutes and a qualitative interview was conducted after experiencing both seats. RESULTS: For comfort no statistically significant differences were found between both seats. For discomfort statistically significant differences were found where discomfort was lower in the reclined seat. Half of the participants preferred the upright and half the reclined seat. The interviews showed that the reclined position was more related to relaxation. CONCLUSIONS: This study indicates that a more reclined back rest results in less discomfort, but that does not lead to a clear preference of participants. The reclined position is associated with relaxing, and this study indicates that for the relaxing state the more reclined seat is preferred. For more active situations the upright posture seems better.

Effect of wheelchair seating systems on scoliosis progression for children with neurological and neuromuscular disorders: a retrospective study of Custom-Contoured Wheelchair Seating and Modular Wheelchair Seating.

OBJECTIVES: To retrospectively evaluate the comparative effect of two wheelchair seating systems, Custom-Contoured Wheelchair Seating (CCS) and Modular Wheelchair Seating (MWS), on scoliosis progression in children with neuromuscular and neurological disorders and to determine any predictors for scoliosis progression. DESIGN: Longitudinal, retrospective cohort study SETTING: National Health Service regional posture and mobility service PARTICIPANTS: Non-ambulant paediatric wheelchair users with neuromuscular and neurological disorders (N = 75; 36 male, 39 female; mean age at seating intervention, 10.50 ± 3.97 years) issued CCS and MWS by the South Wales Posture and Mobility Service from 2012 to 2022. INTERVENTIONS: Two specialized wheelchair seating systems, CCS and MWS. MAIN OUTCOME MEASURES: A generalized least squares (GLS) model was used to estimate the effect of seat type on Cobb angle over time. RESULTS: Of the 75 participants enrolled, 51% had cerebral palsy. Fifty were issued CCS and 25 were issued MWS. Baseline Cobb angle was 32.9±18.9° for the MWS group and 48.0±31.0° for the CCS group. The GLS model demonstrated that time since seating intervention (χ2 = 122, p < .0001), seating type (χ2 = 52.5, p < .0001), and baseline scoliosis severity (χ2 = 41.6, p < .0001) were predictive of scoliosis progression. Condition was not a strong predictor (χ2 = 9.96, p = .0069), and sex (χ2 = 5.67, p = .13) and age at intervention (χ2 = 4.47, p = .35) were not predictive. Estimated contrasts of medical condition with seat type over time demonstrated smaller differences between MWS and CCS over time. Predicted scoliosis velocity was found to attenuate with use of CCS over time compared to MWS, although, scoliosis deteriorated regardless of intervention. CONCLUSIONS: Our findings showed paediatric wheelchair users with neurological and neuromuscular disorders prescribed CCS showed greater mitigation of scoliosis progression over time compared to those issued MWS.

Assessing the Preservation of Lumbar Lordotic Curvature in Everyday Sitting Conditions Assessed with an Inertial Measurement System.

Background/Objectives: Lumbar lordotic curvature (LLC), closely associated with low back pain (LBP) when decreased, is infrequently assessed in clinical settings due to the spatiotemporal limitations of radiographic methods. To overcome these constraints, this study used an inertial measurement system to compare the magnitude and maintenance of LLC across various sitting conditions, categorized into three aspects: verbal instructions, chair type, and desk task types. Methods: Twenty-nine healthy participants were instructed to sit for 3 min with two wireless sensors placed on the 12th thoracic vertebra and the 2nd sacral vertebra. The lumbar lordotic angle (LLA) was measured using relative angles for the mediolateral axis and comparisons were made within each sitting category. Results: The maintenance of LLA (LLAdev) was significantly smaller when participants were instructed to sit upright (-3.7 ± 3.9°) compared to that of their habitual sitting posture (-1.2 ± 2.4°) (p = 0.001), while the magnitude of LLA (LLAavg) was significantly larger with an upright sitting posture (p = 0.001). LLAdev was significantly larger when using an office chair (-0.4 ± 1.1°) than when using a stool (-3.2 ± 7.1°) (p = 0.033), and LLAavg was also significantly larger with the office chair (p < 0.001). Among the desk tasks, LLAavg was largest during keyboard tasks (p < 0.001), followed by mouse and writing tasks; LLAdev showed a similar trend without statistical significance (keyboard, -1.2 ± 3.0°; mouse, -1.8 ± 2.2°; writing, -2.9 ± 3.1°) (p = 0.067). Conclusions: Our findings suggest that strategies including the use of an office chair and preference for computer work may help preserve LLC, whereas in the case of cueing, repetition may be necessary.

Application of the ankle pump method in a sitting position to evaluate calf perforating veins by color Doppler ultrasound.

OBJECTIVE: We investigated the feasibility and efficacy of assessing calf perforating veins (PVs) using the ankle pump in a sitting position (AP-sit) method by color Doppler ultrasound. METHODS: We performed a multicenter prospective clinical trial between November 2022 and October 2023. Eligible patients with chronic venous disease and healthy controls were enrolled. The calf PVs were assessed using three different methods: manual compression in a standing position, manual compression in a sitting position, and AP-sit method. The reflux durations and detection rate of incompetent PVs (IPVs) were compared among the three methods. The number and diameter of calf PVs and distribution of IPVs were analyzed. RESULTS: A total of 50 patients with chronic venous disease and 50 healthy controls were included. There were 173 calves analyzed, including 97 healthy calves and 76 calves with chronic venous disease. The number of PVs per calf was higher in the diseased calves (median, 7.0; interquartile range [IQR], 6.0-8.0) than in the healthy calves (median, 5.0; IQR, 3.0-6.0; P < .001). The diameter of IPVs (median, 2.3 mm; IQR, 2.0-3.1 mm) was larger than that of competent PVs (median, 1.4 mm; IQR, 1.2-1.7 mm). Most of the IPVs (78.8%) were located in the medial and posterior middle of the calf. The reflux duration induced by the AP-sit method was greater than that induced by the manual compression methods (P < .001). Although the AP-sit method had a higher detection rate (92.0%) of IPVs than the manual compression methods (71.7% and 74.3% for standing and sitting, respectively; P < .001), especially in the distal lower leg, the manual compression methods found IPVs not found using the AP-sit method. CONCLUSIONS: Diseased calves with chronic venous disease have more PVs than do healthy calves. IPVs are commonly larger than competent PVs, with most IPVs located in the medial and posterior middle of the calf. Most importantly, the AP-sit method provides a convenient and effective approach for assessing the calf PVs, especially those located in the distal calf, as an alternative or complementary method to traditional manual compression, which is valuable in the daily practice of sonographers.

User opinions about connected pressure detection systems to prevent wheelchair-related pressure injuries: An exploratory cross-sectional survey.

About 1% of the world's population uses a wheelchair. Wheelchair use is a well-known risk of pressure injury. A connected pressure detection system could help to prevent this complication that is linked to long durations of sitting, provided that user expectations are understood. The aim of this study was to explore the needs of wheelchair users (WU) regarding connected pressure detection systems to prevent pressure injury. A cross-section survey-based study of WU was conducted, using an anonymous electronic questionnaire posted from July 2019 to June 2020. Eighty-eight people responded. The majority were power wheelchair users (72.7%); one third (33.0%) had already sustained a pressure injury; only 17.0% knew of the existence of pressure detection systems, nevertheless 78.4% believed that they could be useful in daily life. The feature that received the highest rating was a pressure warning alarm (4.2/5 points). The majority (71.6%) preferred reminder-alerts to be set according to their habits and not according to medical guidelines. In conclusion, pressure detecting systems were perceived as useful to prevent pressure injuries by both manual and power wheelchair users. Work is needed to inform potential users of the existence of such systems.

Impact of pelvic anteversion on spinopelvic alignment in an asymptomatic population: a dynamic perspective of standing and sitting.

BACKGROUND CONTEXT: A subgroup of patients with pelvic anteversion can present with an unusually large degree of lumbar lordosis (LL), a highly sloped sacrum, and a relatively small pelvic incidence (PI). Prior to lumbar surgery, it can be important to consider such unique sagittal alignment. However, until now, there has been a lack of a predictive model considering different pelvic alignments. Furthermore, the dynamic characteristics of an anteverted pelvis (AP) subgroup have also been unclear. PURPOSE: To build linear predictive formulas for LL that take pelvic anteversion into consideration and to explore the dynamic characteristics of an AP subgroup. STUDY DESIGN: Monocentric, cross-sectional study. PATIENT SAMPLE: Five hundred and sixty-five asymptomatic Chinese men and women between the ages of 18 and 80 years. OUTCOME MEASURES: Sagittal parameters including LL, lumbar lordosis minus thoracic kyphosis (LL-TK), PI, pelvic tilt (PT), pelvic incidence minus lumbar lordosis (PI-LL), sacral slope (SS), sacral slope divided by pelvic incidence (SS/PI), sagittal vertical axis (SVA), thoracic kyphosis (TK), and T1 (first thoracic vertebra) pelvic angle (TPA) were measured on whole spine radiographs obtained with participants in standing and sitting positions. METHODS: All participants underwent radiography in the standing position; 235 of them underwent additional radiography in the sitting position to allow measurement of sagittal parameters. The participants with pelvic anteversion were placed in an AP (anteverted pelvis) group. Sagittal parameters were compared between the AP group and the non-AP group, and predictive formulas for LL based on PI were created in both groups. In addition, changes in sagittal parameters from standing to sitting were compared in the AP group and a PI-matched control group. RESULTS: Of the 565 participants, 171 (30.3%) had pelvic anteversion. In comparison with the non-AP group, the AP group presented with larger LL, a larger SS, and a smaller PT, with relatively small PI. The predictive formulas for LL were LL=0.60° × PI+21.60° (R2=0.268; p<.001) in the whole cohort, LL=0. 83×PI+18.75° (R2=0.427; p<.001) in AP group, and LL=0.79°×PI+9.66° (R2=0.451; p<.001) in the non-AP group. In moving from standing to sitting, the AP group presented with a larger decrease in SS and LL compared with the control group, indicating different patterns of spinopelvic motion. CONCLUSIONS: In the cohort examined, 30.3% present with pelvic anteversion. Those with AP present with unique characteristics of spinopelvic alignment. In moving from standing to sitting, they exhibit different patterns of spinopelvic motion. We found that identifying the degree of anteversion in each person improves the accuracy of linear models for predicting the degree of LL, which in turn can make plans for spine surgery more accurate.

Comparison of induction of spinal anesthesia in sitting position with legs parallel and crossed for cesarean section: A randomized controlled trial.

Background and Aims: The position of the patient during subarachnoid block has a role in its success. Landmarks of the spine can be easily identified in sitting position. Sitting position with legs parallel (LPSP) produces a reversal of lumbar lordosis. The crossed-leg sitting position (CLSP) is an alternative position. In this study, we compared the ease of performing subarachnoid blocks in these two positions. The objectives were to compare the attempts at subarachnoid placement, patient comfort, ease of landmark palpation, level of block, hypotension, and neonatal outcomes. Material and Methods: This randomized trial was performed in 80 parturients posted for elective cesarean section. Parturients were assigned randomly to two groups. In group LPSP, the subarachnoid block was performed in sitting position with legs parallel and in group CLSP in the CLSP with knees and hips flexed. Results: The percentage of parturients with a successful subarachnoid block in the first attempt was higher in the CLSP than in LPSP group (87.5% versus 55%). The remaining 12.5% parturients in the CLSP group had successful block in the second attempt. In the LPSP group, 32.5% required two attempts and 12.5% required more than two attempts. This difference was statistically significant (P-value of 0.003). The landmark was easily palpable in 92.5 versus 67.5% of parturients in CLSP and LPSP, respectively, with a P-value of 0.014. Conclusion: CLSP is better than a sitting position with legs parallel for reducing the number of attempts and improving the ease of performing the subarachnoid block.

Handbike configurations and the prevalence of experienced sitting and riding-related problems in recreational handcyclists training for the HandbikeBattle.

Implications for rehabilitationA large variety in handbike configurations is seen in recreationally-active handcyclists.Although the majority of the recreationally-active handcyclists seemed to be satisfied with their handbike configurations, 31-50% of them thought that their handbike configuration could be improved.Evidence-based guidelines for handbike fitting should be developed in the future.

Predicting cervico-thoraco-lumbar vertebra positions from cutaneous markers: Combining local frame and postural predictors improves robustness to posture.

Predictions of vertebra positions from external data are required in many fields like motion analysis or for clinical applications. Existing predictions mainly cover the thoraco-lumbar spine, in one posture. The objective of this study was to develop a method offering robust vertebra position predictions in different postures for the whole spine, in the sagittal plane. EOS radiographs were taken in three postures: slouched, erect, and subject's usual sitting posture, using 21 healthy participants pre-equipped with opaque cutaneous markers. Local curvilinear Frenet frames were built on a spline fitted to spinous processes' cutaneous markers. Vertebra positions were expressed as polar coordinates in these frames, defining an angle (α) and distance (d). Multilinear regressions were fitted to explain α and d from anthropometric predictors and predictors presumed to be linked to spinal posture, the predictors' effects being considered both locally and remotely. Anthropometric predictors were the main predictors for d distances, and postural predictors for α angles, with postural predictors still showing a marked influence on d distances for the cervical spine. Vertebra positions were then predicted by cross-validation. The average RMSE on vertebra positions was 11.0 ± 3.7 mm across the entire spine, 13.4 ± 4.1 mm across the cervical spine and 10.1 ± 3.1 mm across the thoraco-lumbar spine for all participants and postures, performances similar to previous models designed for a single posture. Our simple geometrical and statistical model thus appears promising for predicting vertebra positions from external data in several spinal postures and for the whole spine.

Overactivity of the Less Affected Side as a Possible Pattern of Asymmetry in Sitting in Patients Suffering from First-Time Ischemic Stroke-An Observational Study.

It has been observed that in some people in the acute phase of ischemic stroke (IS) there is a tendency to shift the body weight towards the side more affected by the disease and a tendency to spontaneous movements of the upper and/or lower limbs (not covered by the neurological syndrome). The purposes of this study were: to define the kind of behavior observed, and to select symptoms which can predict its occurrence. Participants (n = 222) hospitalized due to first-time IS were assigned to three groups. A: 78 patients with no lateralization of the neurological syndrome (lateralization of the neurological syndrome-LoNS); B: 109 patients with LoNS; O+ group: 35 patients, who at the beginning of hospitalization presented, apart from LoNS, characteristic motor symptoms performed by the less affected side. Patients underwent therapy depending on the neurological symptoms. If the patient showed potential symptoms of a new phenomenon, overactivity of the less affected side (OLAS), a trial therapy (focused on this behavior) was used to confirm it. The predictive symptoms, selected among these from the index day, for the occurrence of OLAS in sitting were distinguished: asymmetry in supine posture and simple, repetitive movements of the nonparetic upper extremity.

Impact of vertical positioning on lung aeration among mechanically ventilated intensive care unit patients: a randomized crossover clinical trial / Impacto do posicionamento vertical na aeração pulmonar em pacientes de unidades de terapia intensiva ventilados mecanicamente: um estudo clínico transversal randomizado

ABSTRACT Objective: To assess the impact of different vertical positions on lung aeration in patients receiving invasive mechanical ventilation. Methods: An open-label randomized crossover clinical trial was conducted between January and July 2020. Adults receiving invasive mechanical ventilation for > 24 hours and < 7 days with hemodynamic, respiratory and neurological stability were randomly assigned at a 1:1 ratio to the sitting position followed by passive orthostasis condition or the passive orthostasis followed by the sitting position condition. The primary outcome was lung aeration assessed using the lung ultrasound score (score ranges from 0 [better] to 36 [worse]). Results: A total of 186 subjects were screened; of these subjects, 19 were enrolled (57.8% male; mean age, 73.2 years). All participants were assigned to receive at least one verticalization protocol. Passive orthostasis resulted in mean lung ultrasound scores that did not differ significantly from the sitting position (11.0 versus 13.7; mean difference, -2.7; [95%CI -6.1 to 0.71; p = 0.11). Adverse events occurred in three subjects in the passive orthostasis group and in one in the sitting position group (p = 0.99). Conclusion: This analysis did not find significant differences in lung aeration between the sitting and passive orthostasis groups. A randomized crossover clinical trial assessing the impact of vertical positioning on lung aeration in patients receiving invasive mechanical ventilation is feasible. Unfortunately, the study was interrupted due to the need to treat COVID-19 patients. ClinicalTrials.gov registry: NCT04176445

RESUMO Objetivo: Avaliar o impacto de diferentes posicionamentos verticais na aeração pulmonar em pacientes em ventilação mecânica invasiva. Métodos: Trata-se de ensaio clínico aberto, randomizado e transversal, realizado entre janeiro e julho de 2020. Adultos em ventilação mecânica invasiva por mais de 24 horas e menos de 7 dias com estabilidade hemodinâmica, respiratória e neurológica foram distribuídos aleatoriamente em uma proporção de 1:1 à postura sentada seguida da condição de ortostatismo passivo ou o ortostatismo passivo seguido de postura sentada. O desfecho primário foi a aeração pulmonar avaliada pelo lung ultrasound score. O escore varia de zero (melhor) a 36 (pior). Resultados: Foram selecionados 186 indivíduos; destes, 19 foram incluídos (57,8% do sexo masculino; média idade de 73,2 anos). Todos os participantes foram selecionados para receber pelo menos um protocolo de verticalização. O ortostatismo passivo resultou em escores médios de aeração pulmonar por ultrassonografia que não diferiram significativamente da postura sentada (11,0 versus 13,7; diferença média, -2,7; IC95% -6,1 a 0,71; p = 0,11). Ocorreram eventos adversos em três indivíduos no grupo ortostatismo passivo e em um no grupo postura sentada (p = 0,99). Conclusão: Esta análise não encontrou diferenças significativas na aeração pulmonar entre os grupos ortostatismo passivo e postura sentada. É factível conduzir um estudo clínico transversal randomizado para avaliar o impacto do posicionamento vertical na aeração pulmonar em pacientes em ventilação mecânica invasiva. Infelizmente, o estudo foi interrompido devido à necessidade de tratar pacientes com COVID-19. Registro ClinicalTrials.gov: NCT04176445

Effects of Using Sitting Position versus Lithotomy Position during the Second Stage of Labour on Maternal and Neonatal Outcomes and the Childbirth Experience of Chinese Women: A Prospective Cohort Study.

Existing research concerning the effects of the sitting birth position during the second stage of labour on maternal and neonatal outcomes remains controversial, and there is a lack of studies to explore its effect on the childbirth experience. The objective of this study is to explore whether the sitting birth position would influence maternal and neonatal outcomes, as well as the childbirth experience. The prospective cohort design was conducted in the study from February to June 2023, a total of 222 women (including primiparous women and multiparous women) were enrolled in our study, and they were divided into the sitting position cohort (n = 106) or the lithotomy position cohort (n = 116). The pre-designed questionnaire and Childbirth Experience Questionnaire (CEQ) were used for data collection during hospitalisation. Chi-square, Fisher's exact test, t-tests, or the Mann-Whitney U test were utilised to assess differences between groups. Multivariate linear regression and logistic regression were employed to control possible confounders. The study found that primiparous women in the sitting position cohort had a shorter duration of the second stage of labour, higher spontaneous vaginal birth rates, lower episiotomy rates, and a better childbirth experience (p < 0.01). After adjusting for confounding factors through multiple linear and logistic regression analyses, the results remained consistent with those reported above. No neonate in each cohort had Apgar scores at 1 min and 5 min postpartum less than 7 or a Cord artery pH less than 7.00, regardless of parity. Based on the findings, we recommend that women could take the sitting birth position into account when giving birth for a positive childbirth experience, especially for primiparous women. The study could also serve as a reference for healthcare providers in the management of childbirth positions and the development of high-quality maternal care.

Effect of supported sitting position during second stage of labor on its outcome in primigravidae: A quasi-experimental study.

Background: The childbirth position has a significant influence on labor, maternal comfort, and neonatal outcome. In sitting position, there is a faster fetal descent with the effect of gravity. The information on this subject is relatively scant. Therefore, this study aimed to examine the effect of a supported sitting position during second stage of labor on its outcome in primigravidae. Materials and Methods: A quasi-experimental study with a post-test only control group design was used. 60 primigravidae were selected using total enumerative sampling. The labor outcome was assessed by self-structured maternal neonatal outcome checklist and socio-demographic proforma. Results: Statistically significant difference was observed on the mean duration of second stage of labor among primigravidae in control and experimental group (t = 5.87, P < 0.001) and also in the APGAR score of newborns (t = -3.98, P < 0.001). A statistical significant association of duration of second stage of labor with height and intensity of maternal work was also observed. Conclusions: A supported sitting position during labor was found to be effective in reducing duration of the second stage of labor. This can be used as a nursing intervention while providing care during labor especially at primary healthcare centers that can help in reducing the duration of second stage of labor.

Simultaneous Cesarean Section and Maternal Cardiac Surgery: Outcomes and Feasibility from a Tertiary Care Hospital in India.

INTRODUCTION: Cardiovascular disease is the leading cause of pregnancy-related mortality, and it has gradually increased over time; this rise has been attributed to numerous reasons including the growing number of women with congenital heart disease who are surviving to childbearing age. Valve surgery during pregnancy is a high risk, with a fetal and maternal mortality rate of 35% and 9%, respectively. Prior knowledge about the cardiovascular disease opens up a host of options for the mother even during pregnancy, but presentation in the 3rd trimester puts both the mother and the baby at risk. Simultaneous caesarean section and maternal cardiac surgery is a suitable option for this subset of patients, and with this study we aim to assess its outcomes and feasibility. METHODS: This is a retrospective study of five pregnant patients who presented with predominant symptoms of heart failure in the 3rd trimester between June 2019 and June 2021. Intraoperative and postoperative intensive care unit charts of all the patients were reviewed. RESULTS: All five patients underwent simultaneous cesarean section and maternal cardiac surgery successfully with no fetal or maternal mortality and are doing well in the follow-up period. CONCLUSION: Cesarean section followed by definitive maternal cardiac surgery in the same sitting is a safe and feasible approach in the management of such patients. A well-prepared team is pivotal for a safe delivery with a cardiopulmonary bypass machine on standby. Specialized multidisciplinary care in the antepartum, peripartum, and postpartum period is essential to improve outcomes.

Effectiveness of Interventions for Reducing Sedentary Behaviour in Older Adults Living in Long-Term Care Facilities: A Protocol for a Systematic Review.

Background. Sedentary behaviour (SB) is an important risk factor for several health-related outcomes. The prevalence of SB is alarmingly high in older adults, who spend on average 9.4 h being sedentary each day, making them the most sedentary of all age groups. Objectives. The primary objective of this review is to assess the impact of interventions aimed at reducing SB in older adults (aged 60 years and older) living in long-term care facilities (LTCFs). The research question for this systematic review is as follows: in older people living in LTCFs, do interventions aimed at reducing SB, compared to usual care, result in a decrease in SB daily time or a reduction in the length of prolonged and uninterrupted sitting bouts? Data sources. Only peer-reviewed articles will be included in this systematic review, articles will be identified using the PICO method in seven different databases. Participants and interventions. Any primary intervention study (including randomized controlled trials, non-randomized controlled trials, and cohort studies) with the aim to reduce SB daily time or shorten the length of prolonged and uninterrupted sitting bouts in older adults living in LTCFs will be included. After searching databases, abstracts of the studies will be screened, and, after retrieving full text articles, data extraction will be conducted by two independent reviewers. Study appraisal and synthesis methods. The review will adhere to PRISMA reporting guidelines. Risk of bias (RoB) will be assessed using ROBINS-I or the RoB 2.0 tool and will be discussed with a third reviewer. The data will be grouped according to study design, with separate analysis for randomised and non-randomised designs. Results. The primary outcomes will be SB or time spent sedentary, assessed before and after the intervention. For the outcomes with the same measurement units, the pooled mean differences will be calculated. Standardised mean differences will be calculated for the outcomes with different measurement units. The data not suitable in numbers will be synthesised narratively. The strength of evidence of the outcomes will be assessed using GRADE assessment. If the data are suitable for quantitative analysis, we plan to use the Revman software to conduct a meta-analysis. Conclusions and implications of key findings. This protocol can serve as a valuable resource for other researchers interested in conducting similar systematic reviews or meta-analyses in the field of SB and older adult health.

Examination of the correlation between the knee extension angles in the sitting and supine positions measured using ImageJ software: a prospective cross-sectional study.

[Purpose] We aimed to examine the correlation between the knee extension angles in the sitting and supine positions measured using ImageJ software. [Participants and Methods] A total of 50 legs in 25 healthy participants (17 males and 8 females) were included in our study. The knee extension angle was measured in the sitting and supine positions with the participants actively and maximally extending their knee joint on one side. The participants were photographed from the side with their knees centered in the image. Thereafter, the photographs were imported into the ImageJ image processing software to calculate the knee extension angles. [Results] The mean values of the knee extension angles in the sitting and supine positions were 131.5 ± 11.2° and 132.1 ± 12.2°, respectively, with a correlation coefficient of 0.85. No systematic errors were observed, and the minimal detectable change was 12.9°. [Conclusion] The knee extension angle in the sitting position showed a strong correlation with that in the supine position, with no systematic errors observed. Therefore, measurement of the knee extension angle in the sitting position can be an alternative to its measurement in the supine position.

Effect of masticatory movements on head and trunk sways, and sitting and foot pressure distributions during sitting position.

BACKGROUND: The head plays an important role in the postural control. Chewing co-activates jaw and neck muscles leading to coordinated jaw and head-neck movements. Therefore, to examine effect of masticatory movements on head and trunk sways, and sitting and foot pressure distributions during mastication is helpful in the attempt to understand the interrelationship between stomatognathic function and posture control system in the sitting position. OBJECTIVES: The purpose of this study was to test the hypothesis in healthy subjects that masticatory movements affect head and trunk sways and sitting and foot pressure distributions during sitting position. METHODS: A total of 30 healthy male subjects with an average age of 25.3 years (range, 22-32 years) were evaluated. The CONFORMat™ and MatScan™ system were used to analyse changes in sitting pressure distribution center of sitting pressure (COSP) and changes in foot pressure distribution center of foot pressure (COFP), respectively, and the three-dimensional motion analysis system was used to analyse changes in head and trunk postures while subjects remained sitting position with rest position, centric occlusion and chewing. The total trajectory length of COSP/COFP, COSP/COFP area, and head and trunk sway values were compared between the three conditions to evaluate whether masticatory movement affected the stability of head and trunk sways and sitting and foot pressure distributions. RESULTS: Total trajectory length of COSP and COSP area during chewing were significantly shorter and smaller respectively than it was in rest position and centric occlusion (p ⟨ .016). Head sway value during chewing was significantly larger than it was in rest position and centric occlusion (p ⟨ .016). CONCLUSION: Masticatory movements affect sitting pressure distribution and head movements during sitting position.