If you only do one new thing for your body after 40, make it strength training. It's one of the best-studied ways to keep muscle, stay independent and move with confidence, and it's never too late to start.
Written by Vita Globe Editorial Team | Reviewed against U.S. physical activity guidelines and professional position statements
How often should you strength train after 40?
U.S. guidelines recommend muscle-strengthening activities that work all major muscle groups on at least 2 days a week, alongside aerobic activity[1][2]. The National Strength and Conditioning Association calls resistance training a powerful intervention against age-related loss of muscle, strength and function[3].
Caveat: If you have heart, joint or blood-pressure concerns, or haven't exercised in years, check with your doctor first and consider a few sessions with a qualified trainer or physical therapist.
Sources: Physical Activity Guidelines (JAMA) · CDC · NSCA position statement · Verified 2026-09-28
In this article
Why does strength training matter more after 40?
Muscle doesn't stay put on its own. Inactive adults lose an estimated 3% to 8% of muscle mass per decade, along with a drop in resting metabolic rate and a gain in body fat[4]. Over years, that shows up as harder stairs, heavier grocery bags and less confidence on your feet.
The encouraging part is how responsive muscle stays. In the research summarized by Westcott, about 10 weeks of resistance training added roughly 1.4kg of lean weight and reduced fat by about 1.8kg on average[4]. Resistance training has also been linked to better walking speed, physical function and independence in older adults[3].
How often and how hard should you train?
The guideline baseline is two or more days a week of muscle-strengthening activity that works the legs, hips, back, abdomen, chest, shoulders and arms[2]. Many people do well with two or three full-body sessions a week, with at least a day between sessions for the same muscles.
How hard? Pick a weight or variation you can lift with good form for about 8 to 15 reps, where the last couple feel challenging. When that gets easy, add a few reps, a bit more weight or a harder variation. That gradual "progressive overload" is central to the NSCA's guidance on resistance training for older adults[3].
What is a simple beginner strength routine?
No gym needed. Do this twice a week, 1 to 2 sets of each:
| Move | Muscles | Easier / harder |
|---|---|---|
| Sit-to-stand (chair squat) | Legs, hips | Use hands / hold a weight |
| Wall or counter push-up | Chest, shoulders, arms | Higher surface / lower surface |
| Step-ups | Legs, balance | Low step / higher step |
| Band or dumbbell row | Upper back, arms | Lighter / heavier |
| Glute bridge | Hips, lower back | Two legs / one leg |
| Bird dog or dead bug | Core | Slower, with a pause |
Warm up with 5 minutes of easy movement first. For more on warm-ups, see should you stretch before or after a workout.
Does strength training raise injury risk?
Done sensibly, it tends to do the opposite. A meta-analysis of 25 randomized trials found strength training substantially reduced sports injuries, while stretching alone showed no protective effect[5]. Start light, focus on form, and progress slowly. Expect some muscle soreness in the first weeks; that's normal and usually fades within a few days. See how long DOMS lasts.
What role do protein and supplements play?
Muscle is built from the protein you eat. The PROT-AGE group recommends older adults get at least 1.0 to 1.2g of protein per kilogram of body weight daily, with more for those who exercise[6]. Spreading protein across meals is a practical way to get there.
Creatine is the supplement with the most research for strength training; our post on creatine for women over 40 covers the evidence. For bones, strength training pairs well with enough calcium and vitamin D, which we explain in the bone-support trio.
The honest summary
- Muscle loss with age is real, but strength training works at any age.
- Aim for 2+ days a week that work all major muscle groups.
- Start light, progress gradually and prioritize form.
- Eat enough protein; supplements are a small, optional extra.
Our option
Vita Globe Strength & Mobility Bundle
Two gummies, one simple routine: Turmeric, Ginger & Black Pepper (250mg turmeric extract standardized to 95% curcuminoids, 12mg ginger root extract and 100mcg black pepper extract per 2-gummy serving) and Magnesium Citrate (70mg magnesium per serving, 17% DV). Suggested use is 2 of each daily, turmeric preferably with a meal. Some people like it as part of a training-day routine; the lifting, protein and rest are what build strength.
Frequently asked questions
Is it too late to start strength training at 50 or 60?
No. Resistance training benefits have been shown in older adults, and the NSCA recommends it as a way to counter age-related loss of muscle and function[3].
Can I build muscle with bodyweight exercises?
Yes, especially as a beginner. The key is making the exercise harder over time, with more reps, slower tempo or harder variations.
How long before I see results from strength training?
Many people feel stronger within a few weeks. Measurable changes in lean mass were seen after about 10 weeks in the research Westcott reviewed[4].
Should I do cardio or strength training after 40?
Both. Guidelines recommend aerobic activity plus at least 2 days of muscle strengthening each week[2].
Will lifting weights make women bulky?
Unlikely. Most women build strength and some lean muscle without looking bulky, especially on a routine like this one.
Sources
- Piercy KL, Troiano RP, Ballard RM, et al. The Physical Activity Guidelines for Americans. JAMA. 2018;320(19):2020-2028. doi:10.1001/jama.2018.14854
- Centers for Disease Control and Prevention. Physical activity guidelines for adults. https://www.cdc.gov/physical-activity-basics/guidelines/adults.html
- Fragala MS, Cadore EL, Dorgo S, et al. Resistance training for older adults: position statement from the National Strength and Conditioning Association. J Strength Cond Res. 2019;33(8):2019-2052. doi:10.1519/JSC.0000000000003230
- Westcott WL. Resistance training is medicine: effects of strength training on health. Curr Sports Med Rep. 2012;11(4):209-216. doi:10.1249/JSR.0b013e31825dabb8
- Lauersen JB, Bertelsen DM, Andersen LB. The effectiveness of exercise interventions to prevent sports injuries: a systematic review and meta-analysis of randomised controlled trials. Br J Sports Med. 2014;48(11):871-877. doi:10.1136/bjsports-2013-092538
- Bauer J, Biolo G, Cederholm T, et al. Evidence-based recommendations for optimal dietary protein intake in older people: a position paper from the PROT-AGE Study Group. J Am Med Dir Assoc. 2013;14(8):542-559. doi:10.1016/j.jamda.2013.05.021
About the Vita Globe Editorial Team
The Vita Globe Editorial Team researches and writes our wellness content, working from peer-reviewed research, systematic reviews and guidance from bodies such as the NIH and the FDA. We cite our sources inline and update articles when the evidence changes.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is for informational purposes only and is not a substitute for medical advice. Talk to your healthcare provider before starting any new supplement, particularly if you are pregnant, nursing, taking medication, or caring for a child.
