EXERCISE AND OXYGEN

The energy required by muscles to contract is produced by complex biochemical reactions. A critical contributor to the process is oxygen (O2). Oxygen comprises about 20% of the air we breathe. It is absorbed from the lungs onto the haemoglobin molecules in the...

MORE ABOUT MUSCLES

  There are two broad categories of exercise. Dynamic or isotonic exercise is that which uses the regular, purposeful movement of joints and large muscle groups, particularly their Type I fibres. Isometric exercise, on the other hand, involves static contraction...

EXERCISE AND MUSCLES

The muscles are the body’s engines – all movement depends on muscular contraction and relaxation. The joints and limbs are powered by muscular contraction and the physiology of muscle action is both beautiful and elegant. Muscle function The muscles of movement are...

EXERCISE - BACK TO FIRST PRINCIPLES

So far, dear Reader, I have been a bit haphazard in the selection of the exercise based subjects which I have addressed in this Blog. I have tried to be topical which may be confusing. So for 2020 I will have bit of structure, starting at the beginning - what is...