Regular readers of this blog know that I am not in favor of stretching before a workout. New research underscores how pre-exercise stretching can decrease vertical jump height, sprint speed and amount of weight lifted. This is probably because a stretched muscle is a lengthened, and thereby weaker muscle.
Many fear that lack of stretching will lead to injury or a
pulled muscle, but most people “pull their muscles” due to weakness, not
tightness. There is actually no evidence
that stretching (before or after a workout) decreases injury. You still need to warm-up. Your body responds best by gradually easing
into your sport or workout. A dynamic warm-up
is recommended. This means mimicking the
activities you will be doing, but going easier.
For example, walk before running, use light or no weights but go through
the movements before lifting weights. Move your body through its full
range of motion. You should feel warm
before engaging in any intense activity.
This does not mean stretching is bad; these studies are
specific to stretching before a workout or sports performance. Those
with injuries or muscle imbalance may need to stretch a specific area before
working out. However, the consensus is
to save your stretching for after the workout.
You will get better results, and save yourself some time.
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