Page:PHYSICAL FITNESS and HEALTH.pdf/35

 #Synthesis of enzyme protein increased.
 * 1) An increase in number of motor units in a task.

SKELETAL SYSTEM:

Lack of optimum exercise will result in decomposition of calcium and phosphate.

CARDIO VASCULAR

Heart Rate:


 * 1) Regular exercise increasing the heart rate to 140/m for a 10-15 minutes reduces the resting heart rate.
 * 2) A trained long distance runner may have a resting heart rate of 40-50 beats per minute.
 * 3) The recovery phase is faster in trained athlete.
 * 4) As the result of training the heart increases in size because of heart muscle hypertrophy.
 * 5) The heart increases its contractility - that is its ability to squeeze more blood from the Ventricles.
 * 6) The stroke volume out put of the heart increases