entice said:
can someone please help me out! i need the joint used, action, contraction, muscle group used and specific muscles of a concentric phase of a barbell lunge, seated leg press, chin up (supinated grip) and a pec dec. i need all the things above for each of the exercises. any help will be much appreciated!
Just for fun, I will answer the question, using major joints and muscles only:
Barbell lunge- all sagittal plane
hip joint extension using biceps femoris(long and short head),semimembranosus, semitendinosus , gluteus maximus
knee joint extension using vastus medialis, vastus lateralis, vastus intermedius
ankle stabilization and plantar flexion using the triceps surae complex (the gastroc, the plantaris and the soleus)
Seated leg press- in sagittal plane
hip joint extension using biceps femoris(long and short head),semimembranosus, semitendinosus , gluteus maximus
knee joint extension using vastus medialis, vastus lateralis, vastus intermedius
Chin up-
elbow flexion in frontal plane using biceps brachii, brachialis, brachioradialis
shoulder extension in frontal plane using teres major and latissimus dorsi, minor posterior deltoid, long head of triceps brachii, sternal head of pec major
Pec dec
shoulder adduction in transverse plane using the pectoralis major, anterior deltoid, coracobrachialis
shoulder protraction using serratus anterior, stabilized with pec minor
