Question

How does muscle activity vary within the primary agonists (prime movers) when comparing a wide grip...

How does muscle activity vary within the primary agonists (prime movers) when comparing a wide grip pull up (hands in pronated position) to a close grip (curl grip) pulldown? Please make reference to; muscle activation differences, rage of motion differences as well as the stronger reliance on secondary muscle groups to add to force production capability

Homework Answers

Answer #1

Please find answer explaining difference in tabular form.

Wide grip pull up

Closed grip pull down

Primary agonist

Lattismus dorsi, trapezius

Biceps, lattismus dorsi

Muscle activation difference

More recruitment of lattismus

more recruitment of biceps

Range of motion difference

More range of motion of shoulder girdle

More range of motion of glenohumeral joint

Secondary muscle groups

Supraspinatus ,serratus anterior

Posterior deltoid trapezius

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