View clinical trials related to Surface EMG.
Filter by:To assess the immediate effects of hamstring stretching alone or combined with myofascial release of the hamstring muscle on masseter muscle activity, pressure pain threshold, active mouth opening, hamstring flexibility, and forward head flexed posture in recreationally active participants. The young, healthy, recreationally active adults aged 18-25 years were included in the study. The participants were randomly separated into two groups of equal number. Static stretching alone was applied to one group and this was combined with myofascial release techniques (SSMR) for the other group. Masseter muscle activity was assessed using a NORAXON® surface electromyography device. Both pre-and post-intervention, mechanical pressure algometer was used to measure the pressure pain threshold, hamstring flexibility was evaluated using the maximum hip flexion and active knee extension test, the maximum mouth opening (MMO) was measured with the millimetric ruler, and forward flexed posture was evaluated using the tragus to wall distance test.
To investigate change of shoulder muscles by measuring muscle activity according to the position of the backpack.
To investigate change of shoulder muscles by measuring muscle activity according to the position of the backpack.
This study wants to understand which direction of shoulder movement and what posture of shoulder are best for the procedure of muscle strength testing of the muscle pectoralis major(PM). We will use muscle activity signals (sEMG) and force measurement to analyze the contribution of two parts of PM in three different contraction direction with three different shoulder postures.