title: Light weights as effective as heavier weights for strength training.  Lifting less weight more times, to the point of fatigue, is the trick, study says.
mesh_terms: D000367:Age Factors; D000368:Aged; D006801:Humans; D018763:Muscle Fatigue / Q000502:physiology*; D055070:Resistance Training / Q000379:methods*; D014891:Weight Lifting