Efficacy of shock wave therapy and ultrasound therapy in non-insertional Achilles tendinopathy: a randomised clinical trial.

Objective: Physiotherapists and physicians continue to seek effective conservative treatments for Achilles tendinopathy. This study aimed to subjectively and objectively determine the therapeutic efficacy of radial shock wave therapy (RSWT) and ultrasound therapy in non-insertional Achilles tendinopathy. Materials and methods: Thirty-nine patients with non-insertional Achilles tendinopathy were randomly assigned to three experimental groups, i.e., RSWT (group A), ultrasound therapy (group B), and placebo ultrasound (group C) groups. Before the intervention and at weeks 1 and 6 after the treatment, the patients were assessed using the Victorian Institute of Sport Assessment-Achilles (VISA-A) questionnaire and posturographic measurements of step initiation performed on the force platforms under two different conditions (non-perturbed transit and perturbed transit). Results: Six weeks after therapy, all groups exhibited significantly increased VISA-A scores against the measurement at week 1 after therapy. The post-therapy percentage changes in VISA-A scores were significantly greater in group A compared to group B. The three-way ANOVA demonstrated that treatment type affected sway range in the frontal plane and mean velocity of the centre of foot pressure displacements in the sagittal and frontal planes during quiet standing before step initiation. The Bonferroni post-hoc test showed that the means of all those variables were significantly smaller for group A than for group B patients. The three-way ANOVA revealed an effect of the platform arrangement on transit time and double-support period. The Bonferroni post-hoc test revealed statistically longer transit time for the perturbed vs. non-perturbed trials; a reverse relationship was observed for the double-support period. Conclusion: The VISA-A showed that RSWT was significantly more effective than sonotherapy for alleviation of pain intensity as well as function and activity improvement in patients with non-insertional Achilles tendinopathy. Therefore, RSWT therapy can be used in clinical practice by physiotherapists to alleviate the symptoms of non-insertional Achilles tendinopathy. Objective data registered by force platforms during quiet standing before and after step initiation did not prove useful for monitoring the progress of treatment applied to patients with non-insertional Achilles tendinopathy between consecutive therapy interventions.Clinical trial registration:https://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12617000860369, identifier (ACTRN12617000860369).

Is occlusion training effective in increasing strength and hypertrophy of lower limb muscles in MMA fighters?

BACKGROUND: The aim of this study is to evaluate the influence of implementation of the BFR training on the hypertrophy and strength of the lower limb muscles in combat sports fighters, using common and easy to perform both training and control methods. METHODS: Design as a randomized control trial (RCT). The study included 30 men, MMA fighters since at least a year. They were divided into two groups: (A, a control group; B, men with the BFR training). The training lasted 8 weeks (3 times a week) and consisted of performing a set of specific exercises with a load of 20% 1RM. RESULTS: The Wilcoxon analyzing test showed important changes in muscle girth (P<0.01) and lower limb muscular strength (P<0.05). These changes were to be seen in the tested group only, not in the control group. CONCLUSIONS: Occlusion training is effective in increasing strength and hypertrophy of lower limb muscles in martial arts fighters.

Treatment of Jumper's Knee with Extracorporeal Shockwave Therapy: A Systematic Review and Meta-Analysis.

The aim of this systematic review and meta-analysis was to determine the therapeutic efficacy of extracorporeal shockwave therapy (ESWT) for athletes with patellar tendinopathy. We searched PubMed, EBSCOHost and Ovid for randomized controlled trials (RCTs) which evaluated the therapeutic efficacy of ESWT in athletes with jumper's knee. The methodological quality of RCTs was rated with the Physiotherapy Evidence Database scale. Data in the meta-analysis were expressed as standardized mean difference (SMDs) and 95% confidence intervals (CIs). Heterogeneity was assessed with I2 statistics. Of 192 records identified, a total of seven articles met the inclusion criteria. The ESWT and control groups with any other conservative treatment did not differ significantly with respect to the Visual Analogue Scale (VAS) long-term scores obtained at ≥ 6 months of therapy completion (SMD: -0.33; 95% CI: -4.64 to 3.98; p = 0.87; I2= 98%). Furthermore, no significant differences were found between the ESWT and control groups regarding the pooled Victorian Institute of Sports Assessment for Patella (VISA-P) scores for long-term outcomes (SMD: 8.21; 95% CI: -39.3 to 55.73; p = 0.73; I2= 99%). The ESWT and control groups did not differ significantly on the VAS and VISA-P scores for long-term outcomes. In both cases, heterogeneity was considered to be high. Hence, no clear and generalized conclusions can be drawn regarding ESWT effectiveness in athletes with patellar tendinopathy.

Eating Behaviours in Sportswomen from the Silesian Training in Different Sports Disciplines.

Eating disorders are characterized by abnormal, unhealthy eating habits, and disordered body image. In severe cases, it can cause serious health consequences, including cardiac problems, osteoporosis, infertility, or missing menstrual periods. In women competitively training sports, the main cause for disordered eating behaviours are factors associated with dissatisfaction with their appearance and body image and a need to reduce body weight. Factors related to dissatisfaction with one's own appearance and body image, a need to reduce body weight, a negative perception of themselves and their bodies, the pressure in sports circles, and stress are predictors for eating disorders. The aim of the study was to compare eating behaviours, body satisfaction, and taking various actions related to body mass reduction among women training competitively in volleyball, athletics, gymnastics, and young women not participating in sports. MATERIAL AND METHODS: The study covered a group of girls and young women from the Silesian, Poland, who represented three sports disciplines (volleyball, athletics, and gymnastics), of which 30 girls were used as a control group (B). The study was conducted using a study questionnaire. RESULTS: The study participants ate regularly and consumed all food groups during a week. The majority of girls from A1 (83.33%), A3 (53.33%), and B (80%) groups expressed their dissatisfaction with their body weight. In the group of gymnasts, a positive correlation was noted between the need to reduce body weight and regular eating (r = 0.449; p = 0.013). In the group of volleyball players, it was demonstrated that the higher the competitive experience and the greater the training load, the more regular their eating was (r = 0.475; p = 0.009). CONCLUSIONS: The importance of a diagnosis of early signs of eating disorders in girls and women as a basic component contributing to FAT development implies that further studies in this area, as well as education of the entire sports circle are necessary.

Does the Self-Myofascial Release Affect the Activity of Selected Lower Limb Muscles of Soccer Players?

Myofascial therapy has already become one of the basic forms of treatment of the locomotor system. One form of the therapy is Self-Myofascial Release, in which external force is applied to the body with the help of special rollers (foam rolling, FR). The aim of the study was to investigate the direct effect of Self-Myofascial Release of hamstring muscles using a foam roller on the bioelectric activity of selected muscles (biceps femoris and gluteus maximus) during squats. The study involved 40 male soccer players, who were randomly divided into two groups: experimental and control. The tests used did not show significant differences in the analyzed variables before the experiment (baseline measurement p > 0.05), while significant intergroup differences appeared for subsequent measurements, both for reference MVC values (p < 0.01 - for % gluteus maximus MVC, p < 0.001 - for % biceps femoris MVC) and for raw EMG values (p < 0.01 gluteus maximus and p < 0.001 - for % 0.0001 for biceps femoris). The use of self-myofascial release within the hamstring muscles leads to changes in the electrical potential of the muscles of the lower limb.

The Thermal Influence of an Electromagnetic Field with a Radio Frequency Depending on the Type of Electrode Used.

Diathermy is a method used in physiotherapy based on obtaining an increase in temperature by supplying energy from the electromagnetic field to the tissues. The aim of this retrospective work, based on the data included in a medical documentation, was to assess the dynamics of temperature changes on the body surface after the application of a high-frequency electromagnetic field depending on the type of electrode used. In order to generate a radio frequency electromagnetic field, an INDIBA ACTIV® CT9 was used. In order to measure the temperature, an HT-17 thermovision camera was used, enabling measurements within the range of -20 to 300 °C, with an accuracy of ±2% or 2 °C. The participants consisted of 30 healthy subjects (15 women and 15 men) who were physiotherapy students in the Faculty of Public Health in the Silesian Medical University in Katowice, Poland; they were divided into two comparative groups (A and B). It was found that the differences between the groups were not significant in the measurements carried out before using the electrode (p = 0.84; Mann-Whitney U test). On the other hand, at 0, 5 and 15 min, statistically significant differences were noted in the tissue temperature between the groups, depending on the electrode used (p = 0.00; Mann-Whitney U test). Based on the obtained results, it can be concluded that with the extension of the observation time, the tissue temperature increased (for Group A, Me 30.40 °C vs. 34.90 °C; for Group B, Me 30.70 °C vs. 35.20 °C). Our study confirmed that the use of both a capacitive and resistive electrode during treatment with the use of a high-frequency electromagnetic field statistically significantly increased the surface temperature of the area to which the therapy was applied. The results of the study can be used in clinical practice by physiotherapists to optimize the conditions of therapy.

Ground reaction force analysis for assessing the efficacy of focused and radial shockwaves in the treatment of symptomatic plantar heel spur.

BACKGROUND: Extracorporeal shock wave therapy is among the conservative treatments for symptomatic heel spur. OBJECTIVE: The purpose of this trial is to evaluate and compare the therapeutic effects of radial shock wave (RSWT) and focused shock wave (FSWT) applied in the treatment of symptomatic heel spur. METHODS: Fifty-five participants were randomly divided into two comparative groups that were administered FSWT and RSWT, respectively. The severity of dysfunction (Foot Function Index, FFI), ground reaction forces (GRF) and walking temporal parameters were measured in all patients at baseline and at weeks 1, 3, 6, 12 and 24 after treatment. RESULTS: In both groups, a gradual decrease in the FFI values occurred after treatment. The percentage reduction in the FFI was comparable for both groups. Statistically significant changes were only noted between some measurements of GRF and walking temporal parameters. The percentage changes in the values of the force and temporal parameters were similar between the groups. CONCLUSIONS: Both FSWT and RSWT are efficacious in the treatment of symptomatic heel spur and their therapeutic effects are comparable. Objective data registered by force platforms during walking are not useful for tracing the progress of treatment applied to patients with symptomatic heel spur between consecutive procedures.

Formation and stability of manganese-doped ZnS quantum dot monolayers determined by QCM-D and streaming potential measurements.

Manganese-doped ZnS quantum dots (QDs) stabilized by cysteamine hydrochloride were successfully synthesized. Their thorough physicochemical characteristics were acquired using UV-Vis absorption and photoluminescence spectroscopy, X-ray diffraction, dynamic light scattering (DLS), transmission electron microscopy (HR-TEM), energy dispersive spectroscopy (EDS) and Fourier transform infrared (FT-IR) spectroscopy. The average particle size, derived from HR-TEM, was 3.1nm, which agrees with the hydrodynamic diameter acquired by DLS, that was equal to 3-4nm, depending on ionic strength. The quantum dots also exhibited a large positive zeta potential varying between 75 and 36mV for ionic strength of 10-4 and 10-2M, respectively (at pH 6.2) and an intense luminescent emission at 590nm. The quantum yield was equal to 31% and the optical band gap energy was equal to 4.26eV. The kinetics of QD monolayer formation on silica substrates (silica sensors and oxidized silicon wafers) under convection-controlled transport was quantitatively evaluated by the quartz crystal microbalance (QCM) and the streaming potential measurements. A high stability of the monolayer for ionic strength 10-4 and 10-2M was confirmed in these measurements. The experimental data were adequately reflected by the extended random sequential adsorption model (eRSA). Additionally, thorough electrokinetic characteristics of the QD monolayers and their stability for various ionic strengths and pH were acquired by streaming potential measurements carried out under in situ conditions. These results were quantitatively interpreted in terms of the three-dimensional (3D) electrokinetic model that furnished bulk zeta potential of particles for high ionic strengths that is impractical by other experimental techniques. It is concluded that these results can be used for designing of biosensors of controlled monolayer structure capable to bind various ligands via covalent as well as electrostatic interactions.

An attempt at objective and subjective evaluation of the therapeutic efficacy of focused and radial shockwave applied to symptomatic heel spur.

PURPOSE: The experiment was designed to evaluate and compare the efficacy of focused shockwave and radial shockwave in symptomatic heel spur treatment. Postural balance tests were used to ensure the objectivity of evaluations. METHODS: Forty three patients with symptomatic heel spur were divided into two comparative groups that received respectively focused shockwave therapy (the FSWT group; 2000 impulses, 4 Hz, 0.4 mJ/mm2) and radial shockwave therapy (the RSWT group; 2000 impulses, 8 Hz, 5 bars + 2000 impulses, 8 Hz, 2.5 bars). Each patient received 5 treatments at weekly intervals. Before therapy started and 1, 3, 6 and 12 weeks after it ended, the intensity of pain experienced by the patients was assessed and static balance tests were performed on a force platform. RESULTS: Successive measurements showed that the intensity of all kinds of pain under consideration was decreasing gradually and statistically significantly in both groups. The percentage reduction in pain intensity was similar between the groups. The standard deviation of the COP in the anterior-posterior and medial-lateral directions, 95% confidence ellipse area and COP velocity kept varying throughout the experiment, but in none of the groups changes were statistically significant. CONCLUSIONS: Focused shockwave therapy and radial shockwave therapy improve the well-being of patients with symptomatic heel spur significantly and comparably. Posturography cannot deliver unambiguous data for tracking changes that the two therapies induce in these patients.