Lose Weight Keep Muscle

An Australian study of 123 healthy people with an average age of 72 found that high-intensity interval training reduced body fat while preserving lean mass, whereas moderate-intensity training was associated with a decrease in lean mass. The changes were small and did not reach clinical significance. Volunteers took part in supervised sessions three times a week for six months. The researchers stressed that the findings do not prove high-intensity training is best for everyone, and urged people to tailor exercise to their health and consult a doctor before starting strenuous activity.

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