Abstract
Context: Contemporary wide variety of footwear is one of the main reason for increased incidence of Achilles Tendon Disorders (ATDs). Introduction: Flexed knee heel rise (FKHR) task is exploited clinically to evaluate and rehabilitate Soleus (SOL) muscle. FKHR is done in variable footwear without considering its influence on muscles. Information is lacking about footwear influence on leg muscles in FKHR. This understanding is vital for clinical efficacy. Aim – to investigate Flip Flop (FF) influence on Electromyographic (SEMG) activity of Soleus, Tibilais Anterior (TA) & Gastrocnemius lateral (GML) during FKHR. Settings and Design: within-subject cross-sectional study was performed acquiring SEMG data from 40 young healthy (male/female) individuals for SOL, TA & GML. Methods and Material: Subjects performed dominant side FKHR in FF and barefoot (BF). SEMG signals were processed for Mean Frequency (MNF) for the instant of heel rise during FKHR. Statistical analysis: MNF data was normalized (nMNF). Averaged nMNF data was dependent variable; to which paired samples t-test was applied for significance testing.
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