The US Department of Health and Human Services Recommends Doing Muscle

Multiple Choice

The U.S. Department of Health and Human Services recommends doing muscle strengthening (i.e., resistance) exercises ____ a week that involve ____ of the body's major muscles.

A) no more than four times, all
B) four times or more, at least 50%
C) twice or more, all
D) no more than twice, at least 50%