PH wanted to know:


I have a practice GCSE exam paper, but i am usure of the answer to one of the questions. I have searched the internet but i have not found the answer. Ten points to the first person who can get the correct and say why. Here is the question:

Isometric (muscle contractions without movement) exercises are designed to:

A| Develop more strength than isotonic (muscle contractions with movement) exercises.

B| Build strength only at joint angle used.

C| Strengthen the muscle throughout the range of movement.

D| Develop co-ordination.

Please state and explain the answer. Thanks