1. is the strength of your right arm different from the strength of your left ar
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Question
1. is the strength of your right arm different from the strength of your left arms 2. Is there a difference I. The absolute values of force generated by males and females in your class? What might explain any differences? 3.... 4.... Ur the Brain Review & Practice Sheet Exercise 22 B. Application and Analysis 1. Is the strength of your right arm different from the strength of your left arm? Is there a difference in the absolute values of force generated by males and females in your class? What might explain any differences? 2. When you are holding an object, does the number of motor units in use remain the same? Are the same motor units used for as long as you hold the object? 3. As you fatigue, the force exerted by your muscles decreases. What physiological processes explain this decline in strength? 4.Explanation / Answer
1. It is common to have strength differences, this is because during our daily routines, we unconsciously use more of our dominant side in comparison to our weak side. Thus, side or arm which is used repeatedly have more stronger and larger muscles. Also injury may cause imbalance.
2 Yes, males generate more absolute force than the females . This is because males are more athletic than the females and use their muscles more frequently. Also males have more myofibrils in their muscle fibres.
3. When we hold an object, number of motor units in use remain same as the position is same but these are only rotated. No, same motor units are not used for as long as we hold the object, as one becomes tired other will take over.
4. It is caused by reversible depletion of the muscles ATP's as well as due to build up of metabolic waste in our muscles e.g., lactic acid.
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