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winzhouyun

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[交流] 【Share】Defining "moderate-intensity" exercise

Engage in moderate-intensity physical activity for a minimum of 150 minutes each week. That's the current national recommendation on physical activity. It's easy enough to understand, except for the "moderate intensity" part. Does that mean walking? So-called "brisk" walking? Jogging?

San Diego State University researcher Simon Marshall has come up with a practical rule of thumb for figuring out "moderate intensity" as it applies to walking: it's akin to taking at least 100 steps per minute.

To get to this definition, Marshall and his colleagues recruited 97 women and men. Each walked on a treadmill four times at four different speeds—from 2.4 miles per hour to 4.1—while a machine measured the amount of energy he or she was expending. The volunteers also wore pedometers to count their steps.

Complex calculations later, the researchers determined that walking at a speed of at least 100 steps per minute fulfilled the lower limit of moderate-intensity exercise (American Journal of Preventive Medicine).
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xia_chong

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引用回帖:
Originally posted by witch_girl at 2011-01-05 23:06:45:

try to imagine a little baby's walking, if he(she) walks that fast, do you think it's slow?

Ofcourse, it is quite slow. I think "moderate exercise" is running at the speed of about 3 meters per second.
Godhelpsthosewhohelpthemselves!
10楼2011-01-05 23:07:55
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打瞌睡的糖

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Thanks for your share
2楼2011-01-05 12:02:07
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xia_chong

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100 steps perminute? If a step is of 50-cm. 100 steps are about 50 meters, which means that "moderate-intensity" exercise is walking at the speed of less than 1 meter per second. Is it moderate-intensity?
Godhelpsthosewhohelpthemselves!
4楼2011-01-05 15:30:29
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witch_girl

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引用回帖:
Originally posted by xia_chong at 2011-01-05 15:30:29:
100 steps perminute? If a step is of 50-cm. 100 steps are about 50 meters, which means that "moderate-intensity" exercise is walking at the speed of less than 1 meter per second. Is ...

it's a result of your long legs, maybe
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6楼2011-01-05 22:50:31
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