Answer:
Yes, the most voluntary human movement involve the rotation of a body part around an imaginary axis of rotation that passes through the center of a joint.
Explanation:
- The "Center of Gravity" is an point around which body weight is 'evenly distributed'.
- The gravity center of the body of a human can change to a considerable extent because the 'segments of the body' can drift their 'masses' with joint rotations.
- The force of gravity in the body is in downward direction, towards the center of the earth
- The "line of gravity" is very significant for "determining a person's ability" to maintain balance.
- A reaction is needed when this 'center of gravity' falls outside the base.
