ANSWER: Warming up prepares the muscles and joints for greater levels of activity.
It also has numerous other benefits such as:
- Reducing muscle stiffness (which is directly related to muscle injury)
- Increases speed of contraction/relaxation of the muscles that have been warmed up
- Removes lactic acid accumulated during previous workouts
- Increases blood circulation to muscles
- Increases efficiency of oxygen usage by warmed up muscles (hemoglobin releases oxygen more readily at higher muscle temperatures)
- Neuromuscular coordination is improved by warming up before performing a movement
So make sure you warm-up before your next workout!
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