Question

Experiment: students will use a hand dynamometer to measure a subject’s grip strength for dominant and non-dominant forearms and the relative strength and electrical activity of each forearm will be compared to its circumference. Recordings of prolonged grip strength and forearm EMG activity will determine the rate of fatigue in the dominant and non-dominant forearms:

Question: Connect how fast/slow twitch types can be correlated to max force and time to fatigue for dominant/non-dominant arm.

Answer 1

Force applied would be less when the grip strength is low and higher when grip strength is high.Force depends on the number of neurons that are active.As a result there is additional electrical activity in the muscle.Circumference of the forearms has nothing to do with the force.

If there is a dominant forearm forearm,then definitely there will be difference in the force generated.

Dominant arm - fast twitch -maximum force -less fatigue time

Non dominant arm-fast twitch-max force-high fatigue time