A. True, you can avoid heart disease by staying at a healthy weight.
1. You are wondering what my joke is about
2.you this read wrong
4.You just smiled because you have been fooled
5. You skipped number 3
6. You just checked if there was a number 3
7.you smiled again YOU HAVE BEEN FOOLED! :D
The combination of forces produced by different parts of the human body. When a person is moving or attempting to move an object, several different parts of the body act together to maximize the force. In theory, force summation occurs when all body parts act simultaneously In practice, the strongest and lowest body parts around the center of gravity (e.g. trunk and thighs) move first, followed by the weaker, lighter, and faster extremities. This is known as sequential acceleration and results in successive force summation. To obtain a maximum force, summation also needs sequential stabilization of body parts, with some body parts having to be fixed at stable points while other parts produce the effective forces.
The term that best describes the extending and flexing of muscle joints would be a muscle contraction. In addition, this specific form of body movement mainly emphasises the production of muscle tension in the muscle fibres when we do strenuous activities like weights and exercise.
