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.
During an aerobic workout, you depend on liver glycogen to keep your blood sugar levels steady. With full liver glycogen stores, a less fit athlete will run out of glycogen after one hour and 45 minutes of exercise. Once liver glycogen is gone, your blood sugar levels drop and your workout or event is negatively affected.
A. would be the correct answer
Answer:
A. nuts
Nuts would be the answer your looking for
Activity which requires the use of oxygen. Like long distance running