The Skeletal Muscle System. Skeletal muscles are the muscles found in your legs and arms and throughout the body. The skeletal system is different from the smooth muscle system in organs like your liver and the cardiac muscle in your heart because the skeletal muscles contract voluntarily.he skeletal system is different from the smooth muscle system in organs like your liver and the cardiac muscle in your heart because the skeletal muscles contract voluntarily.
With the benefit of breathing pure oxygen first, the current Guinness World Record for holding your breath underwater is held by Ricardo Bahia of Brazil at a whopping 20 minutes 21 seconds! Most people in good health can hold their breath for approximately two minutes.
Health related question in topics Conditions Illness Biology .We found some answers as below for this question How long can an average person hold their breath,you can compare them. The current record for holding breath underwater is 8 minutes, 58 seconds. The average person can hold it a lot less. [ Source: http://www.chacha.com/question/how-long-can-an-average-person-hold-their-breath ] More Answers to How long can an average person hold their breath.