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1.
Psychooncology ; 33(2): e6304, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38363038

RESUMO

OBJECTIVE: A childhood cancer diagnosis is a traumatic experience for patients and their families. However, little is known about the effect on grandparents. We aimed to investigate the negative psychosocial impact, coping strategies, and positive outcomes of grandparents of childhood cancer patients in Switzerland. METHODS: We collected data using a semi-structured interview guide and applied qualitative content analysis. RESULTS: We conducted 20 interviews with 23 grandparents (57% female; mean age = 66.9 years; SD = 6.4; range = 57.0-82.4) of 13 affected children (69% female; mean age = 7.5 years; SD = 6.1; range = 1.0-18.9) between January 2022 and April 2023. The mean time since diagnosis was 1.0 years (SD = 0.5; range = 0.4-1.9). Grandparents were in shock and experienced strong feelings of fear and helplessness. They were particularly afraid of a relapse or late effects. The worst part for most was seeing their grandchild suffer. Many stated that their fear was always present which could lead to tension and sleep problems. To cope with these negative experiences, the grandparents used internal and external strategies, such as accepting the illness or talking to their spouse and friends. Some grandparents also reported positive outcomes, such as getting emotionally closer to family members and appreciating things that had previously been taken for granted. CONCLUSIONS: Grandparents suffer greatly when their grandchild is diagnosed with cancer. Encouragingly, most grandparents also reported coping strategies and positive outcomes despite the challenges. Promoting coping strategies and providing appropriate resources could reduce the psychological burden of grandparents and strengthen the whole family system.


Assuntos
Avós , Neoplasias , Criança , Humanos , Feminino , Idoso , Masculino , Avós/psicologia , Neoplasias/psicologia , Família/psicologia , Ansiedade , Capacidades de Enfrentamento
2.
BMC Pediatr ; 23(1): 443, 2023 09 05.
Artigo em Inglês | MEDLINE | ID: mdl-37670249

RESUMO

BACKGROUND: Substantial progress has been achieved in managing childhood cancers in many high-income countries (HICs). In contrast, survival rates in lower-middle-income countries (LMICs) are less favorable. Here, we aimed to compare outcomes and associated factors between two large institutions; Egypt (LMIC) and Germany (HIC). METHODS: A retrospective review was conducted on newly diagnosed children with cancer between 2006 and 2010 in the departments of pediatric oncology at the South Egypt Cancer Institute (SECI) (n = 502) and the University Hospital of Cologne-Uniklinik Köln (UKK) (n = 238). Characteristics including age, sex, diagnosis, travel time from home to the cancer center, the time interval from initial symptoms to the start of treatment, treatment-related complications, compliance, and outcome were analyzed. A Cox proportional hazards regression model was applied to investigate the influence of risk factors. RESULTS: The most common diagnoses in SECI were leukemia (48.8%), lymphomas (24.1%), brain tumors (1%), and other solid tumors (24.7%), compared to 22.3%, 19.3%, 28.6%, and 26.5% in UKK, respectively. Patients from SECI were younger (5.2 vs. 9.0 years, P < 0.001), needed longer travel time to reach the treatment center (1.44 ± 0.07 vs. 0.53 ± 0.03 h, P < 0.001), received therapy earlier (7.53 ± 0.59 vs. 12.09 ± 1.01 days, P = 0.034), showed less compliance (85.1% vs. 97.1%, P < 0.001), and relapsed earlier (7 vs. 12 months, P = 0.008). Deaths in SECI were more frequent (47.4% vs. 18.1%) and caused mainly by infection (60% in SECI, 7% in UKK), while in UKK, they were primarily disease-related (79% in UKK, 27.7% in SECI). Differences in overall and event-free survival were observed for leukemias but not for non-Hodgkin lymphoma. CONCLUSIONS: Outcome differences were associated with different causes of death and other less prominent factors.


Assuntos
Neoplasias Encefálicas , Leucemia , Criança , Humanos , Países em Desenvolvimento , Egito
3.
BMC Musculoskelet Disord ; 24(1): 481, 2023 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-37312050

RESUMO

BACKGROUND: Pain is the most incapacitating symptom of knee osteoarthritis (OA), with intermittent and/or continuous nature as described by the patients. Accuracy of pain assessment tools across different cultures is important. This study aimed to translate and culturally adapt the Intermittent and Constant OsteoArthritis Pain (ICOAP) measure into Arabic (ICOAP-Ar) and evaluate its psychometric properties in patients with knee OA. METHODS: The ICOAP was cross-culturally adapted following the recommended guidelines from English. Knee OA patients from outpatient clinics were recruited to assess the structural (confirmatory factor analysis) and construct validity (Spearman's correlation coefficient - rho) to assess the relationship between the ICOAP-Ar and the pain and symptoms subscales of the Knee Injury and Osteoarthritis Outcome Score (KOOS), in addition to internal consistency (Cronbach's alpha and the corrected item-total correlation). A week later, test-retest reliability (intraclass correlation coefficient (ICC)) was evaluated. Following four weeks of physical therapy treatment, the ICOAP-Ar responsiveness was evaluated using the receiver operating characteristic curve. RESULTS: Ninety-seven participants were recruited (age = 52.97 ± 9.9). A model with single pain construct showed acceptable fit (Comparative fit index = 0.92). The ICOAP-Ar total and subscales had a strong to moderate negative correlation with the KOOS pain and symptoms domains, respectively. The ICOAP-Ar total and subscales demonstrated satisfactory internal consistency (α = 0.86-0.93). The ICCs were excellent (ICCs = 0.89-0.92) with acceptable corrected item total correlations (rho = 0.53-0.87) for the ICOAP-Ar items. The ICOAP-Ar responsiveness was good with moderate effect size (ES = 0.51-0.65) and large standardized response mean (SRM = 0.86-0.99). A cut-off point of 51.1/100 was determined with moderate accuracy (Area under the curve = 0.81, sensitivity = 85%, specificity = 71%). No floor or ceiling effects were found. CONCLUSIONS: The ICOAP-Ar exhibited good validity, reliability, and responsiveness after physical therapy treatment for knee OA, which renders it reliable for evaluating knee OA pain in clinical and research settings.


Assuntos
Dor Crônica , Osteoartrite do Joelho , Humanos , Adulto , Pessoa de Meia-Idade , Comparação Transcultural , Reprodutibilidade dos Testes , Osteoartrite do Joelho/complicações , Osteoartrite do Joelho/diagnóstico , Traduções
4.
Neuro Oncol ; 25(12): 2273-2286, 2023 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-37379234

RESUMO

BACKGROUND: The prognosis for Li-Fraumeni syndrome (LFS) patients with medulloblastoma (MB) is poor. Comprehensive clinical data for this patient group is lacking, challenging the development of novel therapeutic strategies. Here, we present clinical and molecular data on a retrospective cohort of pediatric LFS MB patients. METHODS: In this multinational, multicenter retrospective cohort study, LFS patients under 21 years with MB and class 5 or class 4 constitutional TP53 variants were included. TP53 mutation status, methylation subgroup, treatment, progression free- (PFS) and overall survival (OS), recurrence patterns, and incidence of subsequent neoplasms were evaluated. RESULTS: The study evaluated 47 LFS individuals diagnosed with MB, mainly classified as DNA methylation subgroup "SHH_3" (86%). The majority (74%) of constitutional TP53 variants represented missense variants. The 2- and 5-year (y-) PFS were 36% and 20%, and 2- and 5y-OS were 53% and 23%, respectively. Patients who received postoperative radiotherapy (RT) (2y-PFS: 44%, 2y-OS: 60%) or chemotherapy before RT (2y-PFS: 32%, 2y-OS: 48%) had significantly better clinical outcome then patients who were not treated with RT (2y-PFS: 0%, 2y-OS: 25%). Patients treated according to protocols including high-intensity chemotherapy and patients who received only maintenance-type chemotherapy showed similar outcomes (2y-PFS: 42% and 35%, 2y-OS: 68% and 53%, respectively). CONCLUSIONS: LFS MB patients have a dismal prognosis. In the presented cohort use of RT significantly increased survival rates, whereas chemotherapy intensity did not influence their clinical outcome. Prospective collection of clinical data and development of novel treatments are required to improve the outcome of LFS MB patients.


Assuntos
Neoplasias Cerebelares , Síndrome de Li-Fraumeni , Meduloblastoma , Criança , Humanos , Síndrome de Li-Fraumeni/complicações , Síndrome de Li-Fraumeni/genética , Síndrome de Li-Fraumeni/terapia , Meduloblastoma/terapia , Meduloblastoma/tratamento farmacológico , Estudos Retrospectivos , Estudos Prospectivos , Neoplasias Cerebelares/terapia , Neoplasias Cerebelares/tratamento farmacológico , Mutação em Linhagem Germinativa , Proteína Supressora de Tumor p53/genética
5.
Eur J Phys Rehabil Med ; 59(3): 396-405, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36988565

RESUMO

BACKGROUND: Flatfoot is a musculoskeletal problem associated with dysfunctional active and passive supporting structures of the normal foot curvature. Strengthening of the intrinsic foot muscles or using shoe orthosis are recommend treatment approaches. However, investigating the effect of combining both approaches is still warranted. AIM: To examine the effect of applying short foot exercises (SFE) combined with shoe insole versus shoe insole alone on foot pressure measures, pain, function and navicular drop in individuals with symptomatic flexible flatfoot. DESIGN: Prospective, active control, parallel-group, assessor-blinded, randomized controlled trial and intention-to-treat analysis. SETTING: Outpatient physical therapy clinic of a university teaching hospital. POPULATION: Forty participants with symptomatic flexible flatfoot. METHODS: A six-week treatment protocol of SFE (three sets of 10 repetitions a day) in addition to shoe insole (eight hours a day) (experimental group, N.=20) or shoe insole only (eight hours a day) (control group, N.=20). Clinic visits were made at baseline and every two weeks for monitoring and follow-up. The static and dynamic foot area, force and pressure measures, pain, lower extremity function, and navicular drop were assessed at baseline and postintervention. RESULTS: Forty participants joined the study and 37 (92.5%) completed the six-week intervention period. Foot pressure, pain and function showed a significant interaction (P=0.02 - <0.001) and time (P<0.001) effects with a non-significant group effect in favor of the experimental group. Post-hoc analysis revealed that the experimental group had lesser pain (P=0.002) and better function (P=0.03) than the control group at six weeks. Navicular drop decreased equally in both groups. CONCLUSIONS: Implementation of shoe insole and SFE for six weeks improved pain and function and altered foot pressure distribution greater than shoe insole alone in patients with symptomatic flatfoot. CLINICAL REHABILITATION IMPACT: Wearing shoe insole is an easy, but passive, treatment approach for a flatfoot problem. This study provided evidence regarding the added benefit of SFE. It is recommended that rehabilitation practitioners implement a comprehensive treatment protocol including both shoe insole and SFE for at least six weeks to achieve better results for their flatfoot patients.


Assuntos
Pé Chato , Órtoses do Pé , Humanos , Pé Chato/reabilitação , Estudos Prospectivos , Pé/fisiologia , Dor
6.
Dig Surg ; 40(1-2): 31-38, 2023.
Artigo em Alemão | MEDLINE | ID: mdl-36791679

RESUMO

BACKGROUND: Due to weight regain and GIT symptoms associated with vertical banded gastroplasty (VBG), revisional surgery is necessary. Roux-en-Y gastric bypass (RYGB) is one of the best options as a revision procedure but comes with a high complication rate. METHODS: This prospective study included 80 patients undergoing RYGB surgery at Ain Shams University Hospitals after failed VBG surgery, with up to 2 years of follow-up. RESULTS: Eighty patients underwent RYGB correction after VBG. The mean age was 42 ± 6.45 (39-58) years and the mean preoperative body mass index was 45.46 ± 4.135 (38-55) kg/m2. The median length of hospital stay for the patients was 4.78 ± 1.84 days. The early postoperative complication rate was 8.7% and the reoperation rate within 30 days was 3.75%, with no mortality. Leakage and bowel injury were detected in 2 patients. After an average follow-up of 2 years, the percentage of EWL was 64.47 ± 19.3, and complete resolution of VBG-related GIT symptoms was achieved in approximately all patients. Late complications occurred in 7.5% of patients, of whom 3.75% required surgery. CONCLUSION: Conversion to RYGB is feasible with a limited short-term complication and reoperation rate; long-term results show a nearly complete resolution of VBG-related symptoms and a statistically significant positive impact on weight loss.


Assuntos
Derivação Gástrica , Gastroplastia , Laparoscopia , Obesidade Mórbida , Humanos , Adulto , Pessoa de Meia-Idade , Derivação Gástrica/efeitos adversos , Derivação Gástrica/métodos , Gastroplastia/efeitos adversos , Gastroplastia/métodos , Obesidade Mórbida/cirurgia , Seguimentos , Estudos Prospectivos , Estudos Retrospectivos , Reoperação , Laparoscopia/métodos , Resultado do Tratamento
7.
PLoS One ; 17(12): e0278785, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36490281

RESUMO

PURPOSE: The new Coronavirus (COVID-19) pandemic has caused significant impact on the medical sector worldwide, including physical therapy (PT). The purpose of this study was to investigate the impact of the COVID-19 pandemic on the PT services, and the associated psychological distress endured by PT practitioners in Saudi Arabia. METHODS: A cross-sectional study was conducted to survey on-duty PT practitioners using a web-based questionnaire. Licensed PT practitioners working in Saudi Arabia (n = 265) participated and completed all the survey questions. The questionnaire comprised 30 questions covering the sociodemographic data and the outcome measures, which included the impact of the pandemic on the PT practice, use of telerehabilitation, administrative response during the pandemic, and PT practitioners' anxiety measured by the General Anxiety Disorder-7 scale. RESULTS: During the lockdown, disruptive impact on the PT practice was reported by most of the participants (80%). The majority of PT clinics/departments were either partially (43.8%) or completely (31.3%) shutdown, and therapists treated patients less than usual. Around 30% of participants reported using a telerehabilitation approach during the pandemic to communicate with patients, and about 33% received online courses and webinars to adapt the PT practice in response to the pandemic. About 21% of participants endured moderate to severe levels of anxiety, which was more pronounced among females. CONCLUSION: The COVID-19 pandemic significantly impacted the PT services in Saudi Arabia. Consequently, the number of patients treated was reduced, and therapists suffered notable psychological stress. Furthermore, although implemented, adaptive administrative measures were inadequate. Physical therapy practitioners and administrative authorities are encouraged to prioritize training and implementation of telerehabilitation as a likely prospective approach of PT practice.


Assuntos
COVID-19 , Feminino , Humanos , COVID-19/epidemiologia , COVID-19/psicologia , Pandemias , SARS-CoV-2 , Estudos Transversais , Controle de Doenças Transmissíveis , Modalidades de Fisioterapia , Arábia Saudita/epidemiologia
8.
BMC Gastroenterol ; 22(1): 203, 2022 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-35462542

RESUMO

BACKGROUND: Intermittent fasting (IF) during the month of Ramadan is part of the religious rituals of Muslims. The effect of intermittent fasting on disease activity in inflammatory bowel diseases (IBD) is still unknown. This is the first study to assess the effect of IF during Ramadan on inflammatory markers in patients diagnosed with IBD. The effects on clinical disease activity, quality of life, and levels of depression were also assessed. METHODS: Patients diagnosed with ulcerative colitis (UC) or Crohn's disease (CD) who intended to observe Ramadan fasting were recruited. The following were assessed immediately before and at the end of Ramadan: Serum CRP and stool calprotectin, partial Mayo score, Harvey Bradshaw index (HBI), Simple IBD questionnaire (SIBDQ), and Hamilton depression scale questionnaire. RESULTS: 80 patients diagnosed with IBD were recruited (60 UC, 20 CD). Serum CRP and stool calprotectin did not show a significant change before vs after fasting (median CRP 0.53 vs 0.50, P value = 0.27, Calprotectin 163 vs 218 respectively, P value = 0.62). The partial Mayo score showed a significant rise after fasting (median 1 before vs 1 after fasting, mean: 1.79 vs 2.33 respectively, P value = 0.02). Harvey-Bradshaw index did not show a significant change after fasting (median 4 vs 5, P value = 0.4). Multiple linear regression revealed that older age and a higher baseline calprotectin were associated with a higher change in Mayo score after fasting (P value = 0.02 and P value = 0.01, respectively). No significant change was detected in SIBDQ or Hamilton depression scale scores. CONCLUSIONS: In patients diagnosed with UC, IF during Ramadan was associated with worsening of clinical parameters, the effect was more pronounced in older patients and those with higher baseline calprotectin levels. However, IF during Ramadan was not associated with an adverse effect on objective inflammatory markers (CRP and calprotectin).


Assuntos
Depressão , Jejum , Doenças Inflamatórias Intestinais , Islamismo , Idoso , Biomarcadores/análise , Biomarcadores/sangue , Comportamento Ritualístico , Colite Ulcerativa/sangue , Colite Ulcerativa/diagnóstico , Colite Ulcerativa/metabolismo , Doença de Crohn/sangue , Doença de Crohn/diagnóstico , Doença de Crohn/metabolismo , Depressão/sangue , Depressão/diagnóstico , Depressão/metabolismo , Jejum/efeitos adversos , Jejum/metabolismo , Fezes/química , Humanos , Doenças Inflamatórias Intestinais/sangue , Doenças Inflamatórias Intestinais/diagnóstico , Doenças Inflamatórias Intestinais/metabolismo , Complexo Antígeno L1 Leucocitário/análise , Complexo Antígeno L1 Leucocitário/sangue , Complexo Antígeno L1 Leucocitário/metabolismo , Estudos Prospectivos , Qualidade de Vida , Índice de Gravidade de Doença
9.
Cancers (Basel) ; 14(5)2022 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-35267570

RESUMO

Nasopharyngeal carcinoma (NPC) in children and young adults has been treated within two consecutive prospective trials in Germany, the NPC-91 and the NPC-2003 study of the German Society of Pediatric Oncology and Hematology (GPOH). In these studies, multimodal treatment with induction chemotherapy, followed by radio (chemo)therapy and interferon-beta maintenance, yielded promising survival rates even after adapting total radiation doses to tumor response. The outcome of 45 patients in the NPC-2003 study was reassessed after a median follow-up of 85 months. In addition, we analyzed 21 further patients after closure of the NPC-2003 study, recruited between 2011 and 2017, and treated as per the NPC-2003 study protocol. The EFS and OS of 66 patients with locoregionally advanced NPC were 93.6% and 96.7%, respectively, after a median follow-up of 73 months. Seven patients with CR after induction therapy received a reduced radiation dose of 54 Gy; none relapsed. In young patients with advanced locoregional NPC, excellent long-term survival rates can be achieved by multimodal treatment, including interferon-beta. Radiation doses may be reduced in patients with complete remission after induction chemotherapy and may limit radiogenic late effects.

10.
Lab Med ; 52(6): 567-573, 2021 Nov 02.
Artigo em Inglês | MEDLINE | ID: mdl-33939819

RESUMO

OBJECTIVE: Spontaneous bacterial peritonitis (SBP) is considered the paradigmatic model of infection in patients with liver cirrhosis. Therefore, there is a need for an accurate and rapid method for SBP diagnosis. The aim of this study was to evaluate the validity of serum-ascites 25-hydroxyvitamin D (25-OH vitamin D) gradient (SADG) as a marker for diagnosing SBP in patients with cirrhotic ascites. METHODS: We conducted a cross-sectional analytic study of 88 patients with portal hypertensive ascites resulting from liver cirrhosis of any etiology. The demographic, clinical, and laboratory characteristics of the patients were recorded. The level of 25-OH vitamin D in serum and ascitic fluid was measured using high-performance liquid chromatography autoanalyzer. The SADG was calculated with the formula: 25-OH vitamin D in serum - 25-OH vitamin D in ascites. RESULTS: Vitamin D deficiency was detected in 89.8% of the studied patients. The SADG values ranged between 0 and 69.2 ng/mL, with a median value of 5.58 ng/mL. It was significantly lower in patients with SBP than in those without SBP (P = .004). The area under the curve for SADG in exclusion of SBP was 0.67 at a cutoff value of ≥5.57 ng/mL. CONCLUSION: We found that SADG may be a valid marker of SBP in patients with cirrhotic ascites.


Assuntos
Ascite , Peritonite , Ascite/complicações , Ascite/diagnóstico , Estudos Transversais , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Peritonite/diagnóstico , Vitamina D
11.
Sports Med Int Open ; 4(3): E67-E68, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33163621

RESUMO

Reply to the Letter to the Editor concerning "Cross-Cultural Adaptation and Validation of the Arabic Version of the Intermittent and Constant Osteoarthritis Pain Questionnaire" Sports Med Int Open 2020; 4(01): E8-E12; DOI: 10.1055/a-1031-0947.

12.
Transfusion ; 59(7): 2228-2233, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30964547

RESUMO

BACKGROUND: Factor X (FX) deficiency (FXD) is an extremely rare autosomal recessive hereditary hematologic disorder, affecting approximately one in 1,000,000 of the general population. CASE REPORT: This case report describes an infant with hereditary severe FXD who presented with a spontaneous, life-threatening intracranial hemorrhage and was treated with the first licensed plasma-derived FX (pdFX) concentrate. On admission, laboratory assays showed severe coagulopathy of unknown cause; the patient was empirically treated using a multimodal hemostatic approach with prothrombin complex concentrate, fresh-frozen plasma, and tranexamic acid. Subsequent single-factor coagulation and genetic analyses confirmed the hereditary FXD diagnosis, and the therapeutic regimen was changed to a targeted regimen of 250 IU pdFX daily. Based on careful monitoring of the coagulation profile, pdFX administration frequency was increased to twice daily, followed by a reduction to once every 18 hours. The patient was discharged after 7 weeks of hospitalization in good clinical condition and now receives prophylactic pdFX three times weekly.


Assuntos
Deficiência do Fator X/complicações , Fator X/uso terapêutico , Hemorragias Intracranianas/etiologia , Consanguinidade , Fator X/administração & dosagem , Deficiência do Fator X/genética , Feminino , Humanos , Lactente , Hemorragias Intracranianas/diagnóstico , Hemorragias Intracranianas/diagnóstico por imagem , Imageamento por Ressonância Magnética , Mutação de Sentido Incorreto
14.
Eur Spine J ; 27(8): 2014-2022, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29322310

RESUMO

PURPOSE: Sagittal spinal deviation has been reported to be a significant musculoskeletal problem affecting both genders and could develop at any age. Factors triggering this issue are still not well defined. The purpose of this study was to investigate the relationship between sagittal spine angles and isokinetic peak, average torque, and power of trunk muscles in asymptomatic adults. METHODS: A convenient sample of 79 subjects with asymptomatic spine participated in this study. Thoracic and lumbar curves angles were measured using the Formetric 4D device. Thoracolumbar (T/L) ratio was calculated as an indicator of spine balance. Isokinetic peak and average torque and average power for trunk flexors and extensors were measured at 60°/s in seated and semi-standing test positions. RESULTS: Lumbar curve angle was moderately inversely correlated (p < 0.001) with peak extension torque (ρ = - 0.532 and - 0.495 in seated and semi-standing positions, respectively) and peak flexion torque (ρ = - 0.604 and - 0.542 in seated and semi-standing positions, respectively). The T/L ratio was found to be significantly associated (p < 0.001) with trunk extension torque (ρ = 0.422 and 0.378 in seated and semi-standing positions, respectively) and trunk flexion torque (ρ = 0.396 and 0.321 in seated and semi-standing positions, respectively). Similarly, average torque and power measurements were significantly correlated with lumbar curve angle and T/L ratio. CONCLUSIONS: Sagittal spine balance is associated with trunk muscles strength in adults, particularly, the lumbar spine muscles. Therefore, assessment of sagittal spinal balance and trunk muscles strength should be taken into consideration when designing rehabilitation programs for correction of sagittal spine curvature.


Assuntos
Vértebras Lombares/anatomia & histologia , Força Muscular/fisiologia , Tronco/fisiologia , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Vértebras Lombares/fisiologia , Masculino , Músculo Esquelético/fisiologia , Amplitude de Movimento Articular/fisiologia , Curvaturas da Coluna Vertebral/patologia , Curvaturas da Coluna Vertebral/fisiopatologia , Torque , Adulto Jovem
15.
Foot Ankle Int ; 37(9): 1008-16, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27162223

RESUMO

BACKGROUND: Habitual use of high-heeled shoes (HHS) has been reported to negatively impact different body structures. However, few studies have investigated its effect on plantarflexor performance. The aim of this study was to investigate the effect of habitual wear of HHS and knee joint position (to isolate the function of the gastrocnemius) on the isokinetic performance of the plantarflexors and ankle joint range of motion (ROM). METHODS: A high-heel (HH) group included 12 women (25.4 ± 4.8 y) who have been wearing HHS for ≥40 hours/wk and for at least a year. A control group (CTRL) had 12 women (21.3 ± 0.5 y) who have occasionally been wearing HHS for <10 hours/wk. Participants performed isokinetic (60 degrees/s) plantarflexion movements through a range set between 15 degrees dorsiflexion and 30 degrees plantarflexion. Ankle joint ROM and average peak plantarflexion torque and power were recorded in 2 knee joint positions, extension and 90 degrees flexion. RESULTS: Overall, torque was significantly affected by knee position (P = .04) and habitual use of HHS (P < .001), whereas power was impacted by knee position only (P < .001). Within each group, flexing the knee reduced isokinetic measurements. However, the reduction was greater for the HH group (torque: 54 Nm, power: 35.6 W) compared with the CTRL group (torque: 42 Nm, power: 32.5 W). Ankle joint ROM was significantly different between groups in knee flexion only. CONCLUSION: Flexing the knee limited the plantarflexor muscular performance and the limitation was more significant in habitual users of HHS compared to nonusers. Thus, it is concluded that habitual use of HHS impacts the contractile properties of soleus more than gastrocnemius. CLINICAL RELEVANCE: The soleus is important for walking and anterior cruciate ligament protection. Thus, HHS users could be susceptible to injury and may need longer and more intensive posttraumatic rehabilitation. Therefore, clinicians should consider knee position when examining the plantarflexors of habitual HHS users.


Assuntos
Calcanhar/fisiologia , Articulação do Joelho/fisiologia , Força Muscular/fisiologia , Músculo Esquelético/fisiologia , Caminhada/fisiologia , Articulação do Tornozelo/fisiopatologia , Feminino , Humanos , Movimento , Amplitude de Movimento Articular , Sapatos , Torque , Adulto Jovem
16.
Hum Mov Sci ; 40: 315-25, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25662505

RESUMO

The aim of this study was to evaluate the main and interaction effects of mass knowledge and mass magnitude on trunk muscular activity and lumbosacral kinematics. Eighteen participants performed symmetric box lifts of three different mass magnitudes (1.1 kg, 5 kg, 15 kg) under known and unknown mass knowledge conditions. Outcome measures were normalized peak electromyography of four trunk muscles in addition to three dimensional lumbosacral angles and acceleration. The results indicated that three out of four muscles exhibited significantly greater activity when handling unknown masses (p<.05). Meanwhile, only sagittal angular acceleration was significantly higher when handling unknown masses (115.6 ± 42.7°/s(2)) compared to known masses (109.3 ± 31.5°/s(2)). Similarly, the mass magnitude and mass knowledge interaction significantly impacted the same muscles along with the sagittal lumbosacral angle and angular acceleration (p<.05) with the greatest difference between knowledge conditions being consistently occurring under the 1.1 kg mass magnitude condition. Thus, under these conditions, it was concluded that mass magnitude has more impact than mass knowledge. However, handling objects of unknown mass magnitude could be hazardous, particularly when lifting light masses, in that they can increase mechanical burden on the lumbosacral spine due to increased muscular exertion and acceleration.


Assuntos
Remoção , Músculo Esquelético/fisiologia , Tronco/fisiologia , Aceleração , Adulto , Fenômenos Biomecânicos , Eletromiografia , Feminino , Humanos , Masculino , Postura/fisiologia , Adulto Jovem
17.
Ergonomics ; 58(2): 227-34, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25329859

RESUMO

Several factors can impact lumbosacral loads during lifting, including weight knowledge and weight magnitude. However, interaction between them has never been tested. This study investigated the interaction effect of these variables on lumbosacral forces and moments. Participants performed symmetrical lifts using three different weights. Weight knowledge involved known and unknown weight conditions. A biologically assisted dynamic model was used to calculate spinal loading parameters. Weight impacted all variables, while knowledge impacted only compression, by a moderate amount (5%), and spinal moments. Lifting a lightweight resulted in a difference of 16% and 7.2% between knowledge conditions for compression and anterior-posterior shear forces, respectively, compared with a negligible difference of < 1% when lifting a heavy weight. Increased spinal loading with light unknown weight can be attributed to increased muscular co-contraction. Weight knowledge is important to consider at low weight levels as it can increase tissue loading to values equivalent to lifting a heavier weight.


Assuntos
Remoção , Região Lombossacral/fisiologia , Análise e Desempenho de Tarefas , Percepção de Peso , Suporte de Carga , Adulto , Feminino , Voluntários Saudáveis , Humanos , Masculino , Contração Muscular , Coluna Vertebral/fisiologia
18.
Leuk Res ; 34(11): 1447-52, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20599270

RESUMO

We conducted a retrospective analysis to investigate the clinical outcome of combined-modality therapy using multiagent chemotherapy and involved-field radiotherapy in treatment of children with Hodgkin's lymphoma. Fifty eight cases with newly diagnosed Hodgkin's lymphoma were analyzed. The median follow-up duration was 46 months (range 3-72 months). The 4-year overall and event-free survival rates were 91.5% and 69.7% respectively. High-risk disease (stage IIIB and IV), presence of B symptoms, lymphocyte depletion subtype, bulky disease and late response to chemotherapy were poor prognostic factors. Stage-adapted combined-modality therapy resulted in satisfactory outcome in treatment of pediatric Hodgkin's lymphoma.


Assuntos
Doença de Hodgkin/terapia , Adolescente , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Criança , Pré-Escolar , Terapia Combinada , Intervalo Livre de Doença , Feminino , Seguimentos , Doença de Hodgkin/mortalidade , Humanos , Masculino , Prognóstico , Radioterapia , Estudos Retrospectivos , Medição de Risco
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