"I'm just getting old": the sentence worth questioning
Getting out of a low chair takes a push from both arms. The shopping bags feel heavier than they did a few years ago. Stairs are fine, but you notice them. Many people put this down to age and leave it there. The decline is real, but a good part of it is not a fixed sentence: strength training after 50 can slow it and, for many people, win some of it back, whatever age you start.
This article explains what sarcopenia is, why strength is the number that matters most, and how to begin in a way that is safe and sustainable.
What is sarcopenia?
Sarcopenia is the progressive loss of muscle strength, muscle mass and physical performance that tends to come with ageing. European experts updated its definition in 2019 and made one important change: low muscle strength is now the first thing looked for, ahead of muscle size, because strength predicts how well people function and stay independent (Cruz-Jentoft et al., 2019).
From midlife onwards, most adults gradually lose muscle, and strength tends to fall faster than size. Inactivity speeds this up a lot. A period of bed rest, an illness, a winter spent mostly indoors or months of sitting after an injury can take away in weeks what took years to build.
The encouraging part is that muscle keeps responding to training throughout life. Older muscle adapts a little more slowly, but it adapts.
Strength training after 50: what the evidence shows
A Cochrane review (2009) of 121 trials of progressive resistance training in older adults found clear gains in strength and smaller, but real, gains in everyday tasks such as rising from a chair, walking speed and climbing stairs. Most programmes ran two to three times a week (Liu and Latham, 2009).
The National Strength and Conditioning Association reached a similar conclusion in its position statement: resistance training is safe and effective for older adults, including frail people and those living with long-term conditions, as long as it is properly prescribed and progressed (Fragala et al., 2019).
Public health guidance reflects this. The UK Chief Medical Officers advise all adults to do activities that strengthen the major muscle groups on at least two days a week, and older adults to add activities that improve balance (Department of Health and Social Care, 2019). The World Health Organization recommends that older adults do varied activity that emphasises balance and strength on three or more days a week to improve function and reduce falls (Bull et al., 2020).
Why "progressive" is the key word
Muscle responds to effort, not to movement alone. Walking is excellent for the heart and mood, but for most people it does not challenge the thigh and hip muscles enough to rebuild strength. Training needs to be hard enough that the last few repetitions of a set feel genuinely demanding, and it needs to become a little harder over time.
That can mean more weight, more repetitions, slower lowering, or a harder version of the same movement. The tool matters less than the gradual increase.
What about protein?
Training is the main signal; food supports it. A large meta-analysis found that protein supplementation added a modest extra gain in muscle mass and strength on top of resistance training, with the benefit levelling off at around 1.6 g of protein per kilogram of body weight per day. The effect was smaller in older people, which suggests training itself carries most of the weight (Morton et al., 2018).
In practice, spreading protein across meals (eggs, dairy, fish, meat, beans, lentils, tofu) is a sensible starting point. If you have kidney disease or a specific diet, check with your doctor first.
A practical way to start
You do not need a gym to begin, although a gym can help later. A simple routine, done two or three times a week, covers the basics:
- Sit to stand: rise from a chair without using your hands, then sit down slowly. Use a higher seat if needed.
- Step-ups: onto the bottom stair, holding the banister.
- Wall or worktop press-ups: for the chest, shoulders and arms.
- Rows: with a resistance band tied to a door handle, or a bag of tins.
- Heel raises: holding the back of a chair, for the calves and ankle strength.
- Carrying: two shopping bags, walking tall, for grip and trunk.
Start with one or two sets of 8 to 12 repetitions. The last two or three should feel hard but still controlled. When 12 feels comfortable, make it harder.
Is muscle soreness normal?
Some stiffness one or two days after a new exercise is normal and settles as your body adapts. Sharp pain, pain that keeps building, or pain that lasts several days is a signal to adjust the load and get advice.
Stop and seek medical help if you get chest pain, unusual breathlessness, dizziness or palpitations during exercise.
When to get an assessment first
Most people can start a gentle programme on their own. It is worth having an assessment before you begin if you:
- have had a recent fall or feel unsteady on your feet
- live with a heart or lung condition, or have been told to limit exertion
- have high blood pressure that is not under control
- have joint pain that already limits what you do, such as knee or hip osteoarthritis
- are recovering from surgery, a fracture or a long illness
- have tried before and kept getting injured
An assessment looks at your strength, balance and movement, and turns them into a plan with starting loads you can trust. That removes the guesswork and the fear of doing too much.
Frequently asked questions
Am I too old to start? No. In a small early trial, frail nursing home residents aged 86 to 96 became much stronger after eight weeks of supervised training (Fiatarone et al., 1990). Starting later simply means starting lighter.
Will lifting weights damage my joints? Well-dosed strength training is part of the treatment for knee and hip osteoarthritis, not a cause of it. Load is adjusted around pain, not avoided altogether.
How long before I notice a difference? Many people feel steadier and find daily tasks easier within six to eight weeks of regular training. Muscle size changes more slowly.
The bottom line
Muscle loss after 50 is common, but it is not inevitable. Strength is trainable at every age, and the benefits show up where they matter: getting up, carrying, climbing and staying independent. The best programme is the one you can keep doing and gradually make harder.
If you would like a plan built around your body and your goals, create an account at bpr.clinic and book an assessment with one of our therapists. At the assessment we listen to your history, look at how you move, test your strength and balance, and give you a plan with starting loads you can follow at home.
References
- Liu CJ, Latham NK. Progressive resistance strength training for improving physical function in older adults. Cochrane Database of Systematic Reviews. 2009;(3):CD002759. https://doi.org/10.1002/14651858.CD002759.pub2
- Fragala MS, Cadore EL, Dorgo S, et al. Resistance training for older adults: position statement from the National Strength and Conditioning Association. Journal of Strength and Conditioning Research. 2019;33(8):2019-2052. https://doi.org/10.1519/JSC.0000000000003230
- Bull FC, Al-Ansari SS, Biddle S, et al. World Health Organization 2020 guidelines on physical activity and sedentary behaviour. British Journal of Sports Medicine. 2020;54(24):1451-1462. https://doi.org/10.1136/bjsports-2020-102955
- Department of Health and Social Care. UK Chief Medical Officers' Physical Activity Guidelines. 2019. https://www.gov.uk/government/publications/physical-activity-guidelines-uk-chief-medical-officers-report
- Morton RW, Murphy KT, McKellar SR, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine. 2018;52(6):376-384. https://doi.org/10.1136/bjsports-2017-097608
- Cruz-Jentoft AJ, Bahat G, Bauer J, et al. Sarcopenia: revised European consensus on definition and diagnosis. Age and Ageing. 2019;48(1):16-31. https://doi.org/10.1093/ageing/afy169
- Fiatarone MA, Marks EC, Ryan ND, Meredith CN, Lipsitz LA, Evans WJ. High-intensity strength training in nonagenarians: effects on skeletal muscle. JAMA. 1990;263(22):3029-3034. https://doi.org/10.1001/jama.1990.03440220053029
