Effects on Leg Muscle Activity using the Compression Belt on Squat Exercise

To compare the EMG activity of directly compressed muscle (multi joints muscles) and indirectly compressed muscle (single joint muscles) with and without specific compression belt on femoral proximal region. A cross-over interventional study. Nine healthy adults (5 women and 4 men), mean age (SD) age: 29.4 (8.8) yrs, performed 3 sets (5sec. set interval: 15sec) of static squat position (bilateral squat (BS) and single leg squat (SS)) during three different conditions; pre non-compressed (Pre), compressed on femoral proximal region (Comp) and post non-compressed (Post). The activity of muscles in BS (54.6 (10.3) %) were higher than in SS (84.9 (14.1) %) (F=96.6, p.05). The interactions between compressive condition and muscles had significant effects (F=6.23, p7lt; 0.01), and Pre (71.4 (%) and Post (67.1%) non-compressed were higher compared to Comp (60.7%) in the RF (F=16.72, p7lt; 0.01). However, activity in the VL was not different (Pre=76.4%, Comp=72.2%, Post=70.7%, F=3.00, p>.05).