2. Effects Of Exercise On The Bodily Systems 2.1 Musculoskeletal
System Like most animals, man is endowed with the ability to
move in relationship to whatever situation arises, as well as
the ability to move different body parts in relation to each
other. As a result, we are capable of maintaining various
postures and counterbalancing the effects of gravity. We are
also capable of transferring mechanical energy to the outer
world by doing work as well as by absorbing various mechanical
effects. These skills are the result of the ability of the
skeletal muscles to transform chemical energy into mechanical
energy during their contractions. The human body is composed of
many different individual muscles, each with its own particular
job to do. From a functional point of view, however, the mass of
skeletal muscles in the organism may be looked upon as one large
organ of movement, which constitutes about 40% of our total body
weight. The reason for this consideration is that most
activities, especially those conne