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Warm Up & Cool Down
It
is vitally important to take the time to properly warm up before
and cool down after exercise.
Here's why:
Warm Up
- Allows your metabolism (oxygen consumption, etc.) to increase
gradually which improves the performance of the heart and
lung systems
- Helps to prevent the accumulation of lactic acid in the
blood which would slow you down in upper level aerobic activities
- The temperature of your muscles increase, which means less
likelihood of muscular injuries
- Facilitates neural transmission for motor unit recruitment.
(plain English translation: Prepares nerve-muscle fiber connections
for efficient firing)
- mproves coronary blood flow in early stages of the conditioning
exercise, lessening the potential for myocardial ischemia
(English translation: You are less likely to die)
- Provides a sort of a screening mechanism for potential
problems - musculoskeletal or heart - which might otherwise
increase at higher intensity levels
- Provides a psychological warm-up to higher levels of work
(i.e., increases arousal and focus on exercise)
Cool Down
- Prevents
blood pooling and too rapid a drop in blood pressure,
thereby reducing the likelihood that you will become light-headed
or faint
- Reduces the risk of post-exercise muscle cramps
- Reduces the concentration of exercise hormones (e.g. norepinephrine)
that are at relatively high levels immediately after vigorous
aerobic exercise
- This reduction will lower the probability of post-exercise
disturbances in cardiac rhythm (You are less likely to
die)
Generally speaking, the best way to warm up for any exercise
is to perform that same exercise at a much lower intensity
level and gradually increase that intensity - or at least
to work the same muscles that will be worked in the primary
exercise activity.
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