eccentric and isometric Muscle Simulation
eccentric muscle contraction occurs when the leg muscles contract during their lengthening. In action sports, such as skiing or snowboarding, this occurs when muscles are absorbing energy in loaded, or active, position. The Alpine TrainerTM Glider Series simulates this energy absorption by applying the muscle contraction created by flexing (bending) the hip, knee and ankle joints against the force produced by the adjustable resistance element of the exercise machine.
isometric contraction occurs when the muscle length stays the same, such as when the knees are fixed in a bend position.