It could be to avoid injuries. One reason why there are several rules in
exercising is to ensure that a person will not get injured during a
workout. Injuries can occur when one is
either handling too much weight, doing the exercise wrong, not using proper
equipment or does not have a partner or trainer assisting him.
Explanation:
In humans, the brain accounts for ~2% of the body weight, but it consumes ~20% of glucose-derived energy making it the main consumer of glucose (~5.6 mg glucose per 100 g human brain tissue per minute.
Have the person sit still with their hand resting stationery in a position below their heart. Locate their thumb and follow the Radius bone from the thumb toward their wrist. Just past their wrist use the pads of your index and middle finger to palpate the radius pulse just inside the radial bone on the distal end of the forearm. If you measure the pulse for 15 secs multiply by 4, 30 seconds multiply by 2, or measure a full minute to beats per minute. After an injury to an upper extremities, it is common to locate the radial pulse on both wrists at the same time to compare the strength of the pulse thus making sure circulation is good.
