CONTRACTION OF THE TENSOR FASCIAE LATAE MUSCLE OF THE FASCIA OF THE BROAD THIGH AND FLEXION OF THE KNEE JOINT IN THE RUNNERS

Abstract

Introduction: The illustration of the ranges of bending the limb during the outflow allowed to divide the study group into two parts. In the majority of respondents, the initial flexion prevailed over the final one. The researchers focused on finding the reasons for the advantage of the final bend over the initial one in 30% of the subjects. The aim: The analysis of the dynamic stride under the control of the MVN Biomech system in the bending of the knee joint of the lateral limb, comparing the preparation to the leg (initial bending) and its ending (final). Materials and Methods: 18 right-handed 25 to 35 year old runners were selected after the following exclusion criteria were applied: polyarticular hypermobility, systemic diseases, Rheumatoid arthritis, osteoarthritis, post-traumatic instability. The MVN Biomech system assessed the three-dimensional movements of the joints of the free part of the lower limb and pelvis, and the flexibility of the muscles was subject to physiotherapeutic assessment. Results: In 55% of respondents dominated the pattern in which the initial flexion exceeded by min. 10⁰ final bend in both limbs (decreasing type). The researchers focused on finding the reasons for the smaller difference or the advantage of the final bending on both sides in 30% of respondents (mixed type). The comparison of physiotherapeutic examination results and measurements of MVN Biomech showed functional contractures of the tensor fasciae latea muscles in 5 subjects with a mixed type (83% of subjects with a mixed type). Conclusions: Contraction of the tensor fasciae latae constrained the initial flexion of the knee joint of the lateral limb, and also increased bilateral visitation of the hip joints during the dynamic mixed-type twitch. The remaining muscles of the lower limbs show no statistically significant differences in elasticity compared to the type of the leg.