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Stretching - Warming Up


Why Warm Up?

Although there are many benefits to warming up, most recreational athletes spend little or no time getting ready for exercise. As the name implies, warming up raises body temperature. This temperature elevation reduces the potential of muscle and connective tissue injuries. In addition, blood flow to the muscles aids in the delivery of fuels required for muscle performance.

Light jogging and easy calisthenics reduce muscle tightness which limits mechanical efficiency and muscle power. Earlier onset of sweating promotes evaporative heat loss and as a result decreases the amount of heat stored by the body. This helps prevent body temperature from rising to dangerously high levels during more strenuous exercise. Warming up properly also prepares the cardiovascular and muscular systems for the upcoming physical activity and provides a transition from rest to strenuous exercise. This may reduce the likelihood of excessive muscular soreness from strenuous activity.

Studies have also shown that warming up increases the speed of nerve impulses to muscles, enabling athletes to achieve faster reaction times. This is one reason professional athletes spend more time warming up compared to many recreational athletes -- they know it will prevent injuries and help them compete better.

There is no secret to a good warm-up. Begin by exercising slowly for 3-5 minutes or until a light sweat starts. Then slowly stretch the muscles you will be using. Each stretch should be held for 15-30 seconds without bouncing. [1]

Stretching Tips

A key to avoiding athletic injuries

"No pain, no gain" has been a credo of some coaches and athletes regarding warm-up stretches. Here are better words to keep in mind while you stretch: "No pain, no pain."

You can do a disservice to yourself when you stretch past the point of pain. You should never hold a painful stretch. You should back off just to where it's not painful, and that's what you want to hold during the duration of the stretch."

The goal of routine stretching exercises is to improve flexibility. Flexibility, aerobic conditioning and strength training are the three broad objectives to focus on as you maintain your body for the rigors and enjoyment of sports. Proper stretching actually lengthens the muscle tissue, making it less "tight" and therefore less prone to trauma and tears. A stretching routine also feels good and can be a relaxing period of your day.

Don't stretch these rules ...

Everybody's different — We all aren't gymnasts. Focus on maintaining adequate flexibility for your sports and activity level.

Be sport-specific — Different sports emphasize different muscle groups. Concentrate on the range of motions and the muscle groups that you're likely to use in your sport.

Start slowly — Example: A ballet dancer begins slowly, with one hand on the bar, before beginning high kicks out on the floor.

Hold your stretch — It takes time to lengthen tissue safely. Hold your stretches at least 30 seconds — and up to a minute with a particularly tight muscle or problem area.

Stretch 'heated' muscles —Stretching a cold muscle can strain and irritate the tissue. Warm up first. Walk before you jog, jog before you run, etc. It's most beneficial to stretch after you exercise, when the muscle is heated by blood flow and is more accommodating of a stretch.

Do not bounce! — Bouncing can cause microtrauma in the muscle, which must heal itself with scar tissue. The scar tissue tightens the muscle, making you less flexible — and more prone to pain.

Think equality — Strive for balance in flexibility on each side of your body. For example, if one hamstring is tighter than the other, you may be more prone to injury.

Don't be afraid to ask — A sports medicine specialist, athletic trainer, physical therapist, or health-club advisor may help improve your stretching technique. [2]

References

[1] Brian Meitner, ATC Meriter Sports Medicine http://www.meriter.com/meriter/living/library/sports/warmup.htm
[2] http://www.mayohealth.org/mayo/9704/htm/stretch.htm