Muscle group Child position Joint fixation Joint starting position Position of dynamometer resistance
Knee extensors Sitting Pelvis and thigh Knee flexed 90° Anterior tibia, 5 cm proximal to malleoli
Knee flexors Sitting Pelvis and thigh Knee flexed 90° Posterior calf, 5 cm proximal to malleoli
Hip flexors Sitting Pelvis Hip flexed off surface Anterior thigh, 3 cm proximal to patella
Hip abductors Supine Pelvis Hip slightly flexed off surface using a knee roll Lateral thigh, 5 cm proximal to the knee joint
Ankle plantarflexors Supine Pelvis and lower leg Hip flexed 90°, lower leg stabilized on a bench, ankle in neutral position. Plantar surface of foot, across metatarsal heads