Strength training advice

The new message on strength training is simpler than the old one: doing some resistance work regularly beats waiting for the “perfect” plan. (acsm.org) The American College of Sports Medicine published its first major update since 2009 in March 2026, drawing on 137 systematic reviews and more than 30,000 participants. The position stand says resistance training improves strength, muscle size, power, and physical function across adulthood. (acsm.org) The evidence review behind that update found that all tested resistance-training prescriptions outperformed doing nothing for strength and hypertrophy, the term for muscle growth. Higher loads ranked best for strength, while multiple-set programs ranked highest for hypertrophy, but every prescription beat no exercise. (journals.lww.com, bjsm.bmj.com) Federal guidance in the United States already tells adults to get at least 150 minutes of moderate aerobic activity a week, or 75 minutes of vigorous activity, plus muscle-strengthening work on two or more days. The Centers for Disease Control and Prevention also says some activity is better than none. (cdc.gov) The World Health Organization uses similar language and ties regular activity to lower risk of cardiovascular disease, type 2 diabetes, some cancers, falls, and all-cause mortality. WHO says 31% of adults worldwide still do not meet recommended activity levels. (who.int) That is why the current advice has shifted toward adherence: train all major muscle groups, keep the routine manageable, and repeat it week after week. Stuart Phillips of McMaster University, an author on the new position stand, said the best program is the one a person will actually keep doing. (acsm.org) The cardio piece has not disappeared. A 2024 umbrella review found sprint interval training is a time-efficient way to improve cardiorespiratory fitness, and a 2026 meta-analysis in adults with metabolic dysfunction found sprint intervals produced glycemic results comparable to moderate continuous training. (pubmed.ncbi.nlm.nih.gov, pmc.ncbi.nlm.nih.gov) That helps explain why trainers and physicians are pairing basic lifting with short bursts of hard conditioning instead of long, elaborate plans. Business Insider reported on April 14, 2026 that software chief executive Leila Hormozi, a mother of seven, said sprint workouts let her spend less time in the gym while getting fitter. (businessinsider.com) Howard Luks, an orthopedic surgeon who writes about exercise and aging, has also argued for a weekly mix built around strength work, walking, and brief high-intensity efforts. His recent posts frame that approach as protection against the loss of muscle, bone, and aerobic capacity that comes with age. (howardluksmd.substack.com) For most adults, the practical version is not complicated: lift on two or more days, cover the major muscle groups, and add vigorous intervals if health and fitness allow. The new guidance does not make strength training easier; it makes the starting line harder to miss. (cdc.gov, acsm.org)