VIDEOS

LEG PRESS
Quadriceps and hamstrings of the thigh, gluteus (butt)

LEG CURL

Hamstrings (primary), calves, gluteus and low-back muscles

LEG EXTENSION

Quadriceps

SHOULDER PRESS
Anterior deltoids and triceps brachii

TRICEP PRESS

Triceps brachii

SEATED CHEST PRESS

Pectoralis major sternal (lower pecs)

SEATED ROW
Major back and shoulder muscles: trapezius, latissimus dorsi, rhomboids and rear deltoids

PEC DECK

Pectoralis major and minor

BICEP CURLS

Bicep (located at front of arm between shoulder and inner elbow)

LOWER BACK EXTENSION

Erector spinae, ​multifidus, biceps femoris, and rectus abdominus

Description content source Livestrong.com