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A 49-year-old member asked:

Please tell how much cardio is too much when trying to build lean muscle mass for a female?

1 doctor answer2 doctors weighed in
Dr. Carol Van der Harst
Physical Medicine and Rehabilitation 35 years experience
Depends: Cardio exercise should be used for fitness of your heart. This can be accomplished in 30 minutes of vigorous activity a day. To be lean, you will benefit from stretching, strengthening and conditioning/training above your caloric intake. If your total fitness routine is greater than one hour, you may need specialized diet and supplements to avoid muscle damage/overuse.

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Last updated Aug 22, 2013
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