热身与拉伸的科学研究

jacky

Warm up vs. StretchingMuch of this confusion comes from a misinterpretation of research on warm up. These studies found that warming by itself has no effect on range of motion, but that when the warm up is followed by stretching there is an increase in range of motion. Many people misinterpreted this finding to mean that stretching before exercise prevents injuries, even though the clinical research suggests otherwise. A better interpretation is that warm up prevents injury, whereas stretching has no effect on injury.
If injury prevention is the primary objective the evidence suggests that athletes should limit the stretching before exercise and increase the warm up time.
Studies do support that range of motion can be increased by a single fifteen to thirty second stretch for each muscle group per day. However, some people require a longer duration or more repetitions. Research also supports the idea that the optimal duration and frequency for stretching may vary by muscle group.
The long-term effects of stretching on range of motion show that after six weeks, those who stretch for 30 seconds per muscle each day increased their range of motion much more than those who stretched 15 seconds per muscle each day. No additional increase was seen in the group that stretched for 60 seconds. Another 6 week study conducted found that one hamstring stretch of 30 seconds each day produced the same results as three stretches of 30 seconds.
These studies support the use of thirty second stretches as part of general conditioning to improve range of motion.

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