Effectiveness of Warm-Up Exercises with Tissue Flossing in Increasing Muscle Strength.

Tissue flossing is an increasingly popular method in physiotherapy and sports. There is a belief that tissue flossing can improve range of motion and muscle strength, shorten muscle recovery time, and reduce the risk of injury. The aim of this study was to analyse the effectiveness of tissue flossing for immediately improving muscle strength in recreational athletes when it is performed during warm-up. All participants were randomly assigned to either an experimental group (n = 36) or a control group (n = 34) using a random number generator. The experimental group (n = 36) performed an intervention comprising exercises with muscle tissue flossing and exercises without flossing. The control group (n = 30) performed the same protocol without a floss band. Muscle strength was measured for knee flexion end extension at three speeds (60, 120, and 180 °/s) 3 times. Analysed parameters include peak torque, work, and power related to body weight, flexors−extensors ratio, and time to peak torque. There were no significant changes in the muscle strength parameters from before to after the warm-up in either group (p > 0.05). Significantly lower values of peak torque, work, and power were observed in the experimental group during the warm-up with the floss band applied to muscles (p < 0.05). No clinically significant changes in time to peak torque or flexors−extensors ratio were observed. A single application of flossing does not improve muscle strength or power and can even reduce individuals' maximum muscle strength capabilities.

Effect of smooth eye tracking in different patterns on results of the modified Clinical Balance Sensory Integration Test in healthy young adults.

PURPOSE: The aim of the study was to determine whether eye tracking of a point moving in different directions influences balance test performance in young healthy subjects. METHODS: The study enrolled 45 healthy young adults aged 19-26. Balance assessment was carried out according to the modified Clinical Balance Sensory Integration Test protocol using the Biodex Balance System with an additional 63" screen to present the eye-tracking task. Each participant repeated measurements in standing on a stable and foam surface in six test conditions: two without eye tracking with eyes open and eyes closed, and four with eye tracking: with vertical, horizontal, star, and circle moving point. Each trial lasted 30 sec. RESULTS: Regression analysis for the Sway Index showed that there was no impact of eye tracking on test results (p = 0.4326), although detailed analysis showed a significant impact of tracking a point moving in a circle in standing on a foam surface (p 〈 0.001). CONCLUSIONS: The presented results show that eye-tracking does not influence the results of the balance test with exception of eye-tracking of the circle movement in standing on a foam surface. It suggests that eye movements may affect the test results when performing more difficult balance tests.

Effect of hamstring tissue flossing during warm-up on sit and reach performance.

BACKGROUND: Tissue flossing, also called voodoo flossing, is becoming a popular adjunct to athletic training to improve joint range of motion and muscle strength. The authors of this technique believe that tissue flossing can be used during warm-up. This study investigated the effect of tissue flossing during warm-up on the range of motion in the sit and reach test. METHODS: The study enrolled 40 recreational athletes divided into an experimental and control group consisting of 20 participants each. The range of trunk flexion was assessed with the sit and reach test. Participants were tested before as well as immediately and 15, 30 and 45 minutes after completing the 9-minute warm-up. During the warm-up, athletes in the experimental group wore a floss band on the thigh muscles, while athletes in the control group exercised without wearing a floss band. RESULTS: The sit and reach test revealed an improved range of motion after the warm-up in both groups (P<0.05). The improvement was noted at all time points. Regression analysis showed no effect of any of the study parameters (group assignment, sex, age, body mass index, pain intensity on a visual analogue scale) on the improvement in the sit and reach test results. CONCLUSIONS: The similar results obtained in both groups indicate that there may not be a rationale for using tissue flossing during warm-up to improve trunk and hip flexibility.

Influence of force-time parameters of hip abductors on maintaining balance in frontal plane in young healthy females.

PURPOSE: The aim of this study was to determine the impact of isometric and isokinetic hip abductor muscle strength on the quality of maintaining static balance in healthy subjects. METHODS: The study enrolled 51 healthy women aged 18-25. Balance assessment was carried out according to the M-CTSIB protocol and Single Leg Stance Test (with eyes open and closed) using the Biodex Balance System. An isokinetic evaluation conducted at 30 °/s and an isometric evaluation of the hip abductors were performed with the Humac Norm system. RESULTS: Regression analysis for Sway Index (SW) and Stability Index (ST) in bipedal standing showed a significant importance of the presence of visual feedback (RSW EO = -0.922; p < 0.0001; RST EO = -0.613; p = 0.0493), and unstable surface (RSW US = 1.253; p < 0.0001; RSW US = 2.547; p < 0.0001). Regression analysis for single-leg stance showed correlations between the following indices: overall sway index (OR) in single-leg stance, the antero-posterior (AP) sway index and the medio-lateral (ML) sway index on the one hand and isometric abduction time to peak torque (ROR TPT = 0.769; p = 0.0005; RAP TPT = 0.565; p = 0.008; RML TPT = -1.74; p < 0.05, respectively) as well as the test conditions on the other. CONCLUSIONS: Physiological activation of the hip abductors may be important for physiological maintenance of postural balance in young people, in both leg standing as well as in single-leg stance. The present results warrant prospective, randomized studies of larger groups that are diversified with regard to age and gender of the participants.

Assessment of the Effectiveness of Rehabilitation after Total Knee Replacement Surgery Using Sample Entropy and Classical Measures of Body Balance.

Exercises in virtual reality (VR) have recently become a popular form of rehabilitation and are reported to be more effective than a standard rehabilitation protocol alone. The aim of this study was to assess the efficacy of adjunct VR training in improving postural control in patients after total knee replacement surgery (TKR). Forty-two patients within 7-14 days of TKR were enrolled and divided into a VR group and a control group (C). The C group underwent standard postoperative rehabilitation. The VR group additionally attended twelve 30-min exercise sessions using the Virtual Balance Clinic prototype system. Balance was assessed on the AMTI plate in bipedal standing with and without visual feedback before and after the four-week rehabilitation. Linear measures and sample entropy of CoP data were analyzed. After four weeks of rehabilitation, a significant reduction in parameters in the sagittal plane and ellipse area was noted while the eyes remained open. Regression analysis showed that sample entropy depended on sex, body weight, visual feedback and age. Based on the sample entropy results, it was concluded that the complexity of the body reaction had not improved. The standing-with-eyes-closed test activates automatic balance mechanisms and offers better possibilities as a diagnostic tool.

Effect of a Single Session of Facial Distortion Model Manual Physiotherapy and a Selected Foam Rolling Technique on Treatment Outcomes in Cervical Spine Overload. Pilot Study.

BACKGROUND: The prevalence of neck pain is on the increase. A sedentary life style, poor ergonomics in the workplace and in daily life, and stress all contribute to neck overload. The aim of this study was to assess the efficacy of a single session of a Fascial Distortion Model (FDM) intervention combined with foam rolling in patients with cervical spine overload. MATERIAL AND METHODS: The study enrolled 90 patients, who were randomized to an FDM group, a foam rolling group (who exercised with a Duoball against a wall) and a control group, of 30 patients each. Mobility was measured with a digital inclinometer, pain intensity was assessed with a VAS scale and (upper and middle) trapezius tone was evaluated by sEMG. These measurements were carried out twice in each group and analysed in Matlab and Statistica 13. RESULTS: Both groups subjected to a therapeutic intervention (FDM and foam rolling) reported a significant reduction in neck pain intensity and improved cervical spine mobility (p<0.01). The control group did not demonstrate changes in mobility or pain intensity. The resting trapezius tone did not change in any of the groups. Conclusions, 1. A single session of FDM therapy can effectively reduce and eliminate cervical spine pain, which may be of use in work-site rehabilitation. 2. Single sessions of FDM and foam rolling can effectively improve neck mobility in patients with cervical spine overload. 3. There is a rationale for conducting further prospective randomized studies of larger samples to assess the duration of the beneficial effects of both therapies and determine an optimum session frequency.