Adherence
Low-intensity resistance exercise (20-30% 1RM) performed to failure (high volume) stimulates muscle protein synthesis (MPS) similarly to high-intensity exercise (80-90% 1RM) in older adults, offering a viable alternative for those with joint limitations.
You don't need to lift heavy weights to build muscle. If you have joint pain, use lighter weights (about 30% of your max) and do many repetitions until you can't do any more. This 'high volume' approach stimulates muscle growth just as effectively as heavy lifting, without the joint stress.
low-load high volume leg resistance exercise to failure (30% of 1RM) was more effective at increasing MPS than high-load low volume resistance exercise to failure (90% of 1RM)... weight lifting at 30% of 1RM to failure induced similar increases in MPS to that found after lifting 90% of 1RM to failure at 4 h post-exercise
Why this rating
Based on human studies (Fry, Breen lab) showing equivalent MPS responses, though long-term hypertrophy data in elderly is noted as 'yet to be determined'.
Source
Skeletal muscle protein metabolism in the elderly: Interventions to counteract the 'anabolic resistance' of ageing
Leigh Breen et al. · Nutrition & Metabolism · 2011
DOI 10.1186/1743-7075-8-68
More from this paper
- Elderly individuals exhibit 'anabolic resistance,' requiring higher doses of protein (specifically ~20g whey or ~2.8g leucine) to stimulate muscle protein synthesis (MPS) above rest, compared to younger individuals who respond to lower doses (~5g protein).Good
- Omega-3 fatty acid (n-3 PUFAs) supplementation augments muscle protein synthesis (MPS) and mTOR signaling in the elderly, potentially by attenuating age-related anabolic resistance through anti-inflammatory mechanisms.Moderate
Related findings · Adherence
- Regular physical activity (at least 150 minutes/week of moderate-intensity) reduces all-cause and cardiovascular mortality by 20-30% and lowers the risk of type 2 diabetes by 25-35%.Strong
- Increasing physical activity from a sedentary lifestyle to an active one in middle adulthood significantly reduces the risk of coronary events compared to remaining sedentary.Strong
- Resistance exercise is the only intervention capable of consistently restoring muscle function and strength in sarcopenia, partially overcoming age-related anabolic resistance.Strong
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