Eat healthy foods salads and good stuff for their heart and no drugs so their heart is healthy and excersice for them to get in shape and health and healthy
Isotonic contractions generate force by changing the length of the muscle and can be concentric contractions or eccentric contractions. A concentric contraction causes muscles to shorten, thereby generating force. Eccentric contractions cause muscles to elongate in response to a greater opposing force.
Answer:
George Brooks has found that training actually teaches muscle cells how to use lactic acid as a fuel to get more bang for the buck.
