Influence of lower leg myofascial kinematic chains on flat feet development of children 7-14 years old

Abstract

<p><strong>The aim of the work </strong>is to study the biomechanical properties of the myo-fascial kinematic chain "foot-shin" of children of 7-14 years old with non-fixed and clinically expressed flat-footedness.</p><p><strong>Material and methods</strong>. The study involved 14 children with flat-footedness of grades I-II and 6 children with flat-foot deformity of the foot and 20 children who only had functional disorders of the foot. An anthropometric study of the foot was carried out, electrophysiological indicators of the muscles of the leg were determined, and plantograms were analyzed.</p><p><strong>Results</strong>. The study found a correlation between the indicators of the anatomical and functional state of the foot and the imbalance of the frequency-amplitude indices of the ipsi and contralateral muscles within one link of the myofacial kinematic chain, may be important as one of the factors that contribute to the development of flatfoot. This is confirmed by other indicators and indicate a decrease in the height of the longitudinal arch, a decrease in the metatarsal and heel angles of the arch of the foot. Such changes have a pronounced relationship with age. The results of the work indicate that a possible cause of flattening of the vaulted apparatus of the foot is not only the weakness of its joint-ligament-muscular system, but also above the located kinematic segment - the tibia. The correlation analysis revealed the relationship between the indicators of the development of the anatomical and biomechanical components of the foot and the characteristics of the electromyographic indicators of the muscles of the leg in children 7-14 years old. As a result of a comprehensive study, it was found that during this period of ontogenesis in the formation of flatfoot such electromyographic indicators as frequency-amplitude characteristics of action potentials of motor units of the long and posterior tibial muscles, as well as their tone imbalance, take on major importance.</p><p><strong>Conclutions</strong>. Experimental studies have established that the registered changes in the articular components of the foot of children 7-14 years old lead to a change in the electromyographic parameters of the muscles of the leg, which are involved in the formation of the initial sections of myo-fascial kinematic chains.</p>

Role of Fascial Connectivity in Musculoskeletal Dysfunctions: A Narrative Review

“…It is appraisable that more and more studies are adding to the literature of myofascial connectivity even though only very few are connecting this to the myofascial meridians as defined here. A re-search on December 2019 identified six more articles reporting interventions related to Superficial back line (Do et al, 2018;Williams and Selkow., 2019;Wang., 2019;Paloncy et al, 2019;Chakhuttray et al, 2019;Bezuidenhout., 2010) and few more studies mentioning the myofascial connectivity (Devereux et al, 2019;Danyschuk., 2019;Borg et al, 2019;Zhang., 2019). The myofascial connectivity is often a secondary finding in many studies and the introduction of all these findings is beyond the scope of this narrative review.…”