In most conditions of work, power is the desired result of muscular contraction.

Question

In most conditions of work, power is the desired result of muscular contraction. A. What are the two major components of power? B. At the level of the sarcomere and actomyosin interaction, what are the steps and factors responsible for the two components identified in A above? C. For a “B” grade, identify for each of the two components from #A two methods by which each component is modulated (at either the single cell, motor unit, or whole muscle level) both acutely and chronically (i.e for a “B”, a total of 8 different modulating methods; 2 acute & 2 chronic for A1, and 2 acute & 2 chronic for A2).

Explanation / Answer

A )  two major components of power

power is nothing but the ability to exert maximum muscular contraction instantly in an explosive burst of movements. The two components of power are strength and speed.

Strength - the extent to which muscles can exert force by contracting against resistance.

B ) generally the Actin filaments association with myosin, are responsible for many types of cell movements. Myosin is the prototype of a molecular motor a protein that converts chemical energy in the form of ATP to mechanical energy, thus generating force and movement. The most striking variety of such movement is muscle contraction, which has provided the model for understanding actin-myosin interactions and the motor activity of myosin molecules.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.