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Put marbles on the floor next to a cup. Using your toes, try to lift the marbles up from the floor and put them in the cup.

By Healthwise Staff See additional information
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer Gavin W.G. Chalmers, DPM - Podiatry and Podiatric Surgery
Current as of July 9, 2013

WebMD Medical Reference from Healthwise

Heart Rate Calculator

Ensure you're exercising hard enough to get a good workout, but not strain your heart.

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Heart Rate Calculator

Ensure you're exercising hard enough to get a good workout, but not strain your heart.

While you are exercising, you should count between...

-
Beats
PER
Seconds