Leg machines
HIP ADDUCTOR MACHINE
Main working muscles: The inner-thigh muscles, which consist of the three adductors (longus, magnus and brevis), pectineus and gracilis.
HIP ABDUCTOR MACHINE
Main working muscles: The hip abductors, gluteus medius and minimus.
LEG PRESS
Main muscles worked: the front-thigh muscles, in coordination with the hip extensors and ankle plantarflexors.
CALF RAISE
Main muscles worked: The calf muscles (gastrocnemius and soleus) with the Achilles tendon.
HAMSTRING CURL
Main working muscles: The hamstrings , with some input from the gastrocnemius calf muscles , especially if the weight is heavy.