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.
Introduction: Nowadays more women are trying to shape their figure properly. Changes in the menstrual cycle can affect the dynamic muscle parameters of women. Aim: The aim of the study was to assess muscle strength in various phases of the menstrual cycle in young women Material and methods: The study involved 23 women aged 20–22. All the women had menstrual periods (27 ± 3.16 days). The strength measurement was made by means of Microfet2 (Hoggan Health Industries, USA), which was fixed permanently to the floor. The test was performed on the knee flexors at the angle of 10° and 90° and hip flexors in the neutral position and the glenohumeral joint (shoulder) extensors at the flexion of 90°. The lever arm was marked with the use of anthropometric points. The test was performed three times in each phase of the menstrual cycle; in the early follicular phase (2nd–5th day), the ovular (12th–15th day) and in the luteal phase (16th–28th day). Results and discussion: No statistically significant differences in the muscle torque values during the menstrual cycle were confirmed in the test. The P value of the arm extensors is 0.33, for hip flexors is 0.79 and hamstring muscle with a bent knee joint in 90° and 10° is 0.311, 0.567, respectively. No statistically significant differences between the particular cycles phases were confirmed either. Conclusions: In the menstrual cycle in young women, there are no significant differences in muscle strength during the individual phases.
Background. Muscle stretching has been practiced by people for thousands of years. Its effectiveness is wellproven, but the diversity of the obtained results should prompt a search for causative factors. One of the possible explanations can be hormonal fluctuations, which occur during the menstrual cycle.Objectives. To assess the influence of menstrual cycle on the efficiency of static stretching of hamstrings with special reference to changes in their length. Materials and methods.A total of 534 young women were recruited for the study, but after applying the inclusion criteria, only 48 of them have been accepted. The inclusion criteria for the study comprised a reduced length of the hamstring muscles and a regular menstrual cycle. The whole study included a twofold examination of hamstring length before and after the stretching (3 × 45 s), performed by a physiotherapist. All the measurements were carried out 3 times in individual phases of the menstrual cycle.Results. Statistically significant influence of static stretching upon the length of hamstring muscle was revealed. A change in the passive knee extension (PKE) test was 13.34% (standard deviation (SD) = 10.97), and in active knee extension (AKE) test it was 8.46% (SD = 9.26). Hamstrings length demonstrated no differences in various phases of the menstrual cycle.Conclusions. Static stretching is an effective tool for the improvement of the length of the hamstring muscle in young women. However, the effectiveness of stretching in healthy women is not influenced by the menstrual cycle phases.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.