The effect of back squat depth and load on lower body muscle activity in group exercise participants

Les Mills BODYPUMPTM is a resistance training group exercise class with low load, high repetition format. Squat in has two key variables: depth and load. The study aim was to determine the effect of these parameters on mean peak EMG amplitude vastus lateralis, gluteus maximus, biceps femoris lateral gastrocnemius. Ten female participants (age 41 ± 9 years, height 161.9 3.8 cm, mass 67.7 7.0 kg) performed 1 × 7 squats under four conditions, representing every combination depths (90° knee angle 125° angle) loads (23% bodyweight 38% bodyweight). main significant for activity lateralis load maximus There no * interaction. These data can be used inform programme design amplify participation classes.