Training after 50
Sarcopenia: Signs, Simple Tests and How to Rebuild Muscle
Published October 20, 2026
Sarcopenia is the progressive loss of muscle strength, mass and function that comes with aging. It raises the risk of falls, fractures, loss of independence and hospitalization. The most effective treatment is progressive strength training two to three times a week, combined with enough protein; it works even in people in their 80s and 90s.
Doctors now diagnose sarcopenia based mainly on low strength, not just low muscle size. Here's how it's defined, simple tests you can do at home, and a practical plan to fight it.
How sarcopenia is defined
The European consensus (EWGSOP2, Cruz-Jentoft and colleagues, 2019) uses three steps:
- Probable sarcopenia: low muscle strength.
- Confirmed sarcopenia: low strength plus low muscle quantity or quality (measured by DXA, bioimpedance, CT or MRI).
- Severe sarcopenia: all of the above plus poor physical performance (for example slow walking speed).
Cut-off values used in EWGSOP2
| Test | Low strength / performance threshold |
|---|---|
| Grip strength | < 27 kg (60 lb) for men, < 16 kg (35 lb) for women |
| 5 chair stands | > 15 seconds |
| Gait speed | ≤ 0.8 m/s (about 1.8 mph) |
| Timed Up and Go | ≥ 20 seconds |
These are research and clinical thresholds; only a health professional can make the diagnosis.
Signs to watch for
- Getting up from a chair needs your arms.
- Climbing stairs is harder or slower.
- Walking more slowly, tiring quickly.
- Difficulty opening jars or carrying groceries.
- A fall, or fear of falling.
- Unintentional weight loss, clothes looser on arms and legs.
Simple self-checks (for information only)
5 chair stand test: sit on a standard chair (about 17 inches / 43 cm), arms crossed on chest. Stand up fully and sit down 5 times as fast as you safely can. More than 15 seconds suggests low leg strength. Have someone nearby.
Grip strength: pharmacies, gyms and physical therapists often have a hand dynamometer. Grip is a powerful health marker: in the PURE study of nearly 140,000 adults, each 5 kg (11 lb) lower grip strength was associated with a 16 percent higher risk of death from any cause (Leong and colleagues, 2015).
If either is low, talk to your doctor.
What causes it
Aging nerves and muscle fibers, less physical activity, hormonal changes, chronic inflammation and diseases, insufficient protein and calories, and periods of bed rest or hospitalization (which can strip muscle very quickly in older adults).
The treatment that works: strength training
- A Cochrane review by Liu and Latham (2009) pooled 121 trials with 6,700 older participants: progressive resistance training improved strength and physical function, including tasks like getting up from a chair.
- A meta-analysis by Peterson and colleagues (2010) found large strength gains in older adults, with higher-intensity training producing greater improvements.
- An umbrella review by Beckwée and colleagues (2019) concluded that resistance training has the best evidence for preventing and treating sarcopenia.
A starter plan (2-3 times a week)
| Exercise | Sets x reps | Easier version |
|---|---|---|
| Chair stand (sit-to-stand) | 2-3 x 8-12 | Higher seat, hands on thighs |
| Wall or counter push-up | 2-3 x 8-12 | Closer to the wall |
| Seated or band row | 2-3 x 10-12 | Lighter band |
| Step-up on the bottom stair | 2 x 8 per leg | Hold the rail |
| Heel raises at the counter | 2 x 12-15 | Both hands on counter |
| Standing on one leg | 3 x 10-30 s per side | Fingertip support |
Effort should feel moderate to hard (about 6 to 8 out of 10) by the last reps. Add reps, then resistance (bands, dumbbells, a backpack), every week or two. A full guide is in strength training for seniors.
Nutrition
- Protein: many experts suggest older adults aim for at least 1.0 to 1.2 g per kg (0.45 to 0.55 g per lb) per day, more with training or illness, spread across meals (about 25 to 30 g each). See how much protein per day.
- Enough calories: muscle can't be rebuilt in a large deficit.
- Vitamin D: check levels with your doctor.
- Creatine: some studies in older adults who lift show added benefit; ask your doctor first, particularly with kidney issues or regular medication. See creatine benefits.
Prevention starts in midlife
Muscle strength starts to decline from midlife. Strength training two days a week from your 40s and 50s builds a reserve: strength training for women and menopause and strength training cover the female side, where bone loss also accelerates.
Who should get medical advice first
Anyone with heart disease, uncontrolled blood pressure, recent fractures or surgery, dizziness or falls. A physical therapist can tailor the program.
Our 12-week programme includes a dedicated track for adults over 50, with starting tests like the chair stand and a gradual progression.
Frequently asked questions
At what age does sarcopenia start?
Muscle mass and strength begin to decline gradually from midlife, with faster decline in older age. Sarcopenia is most common after 65, but prevention should start earlier.
Can sarcopenia be reversed?
Strength and function can improve significantly with resistance training and good nutrition, even in very old adults. Early action gives better results.
What are the first signs of sarcopenia?
Difficulty rising from a chair, slower walking, needing support on stairs, reduced grip strength and unexplained weight loss.
What is the best exercise for sarcopenia?
Progressive resistance training is the most effective, combined with balance and walking. Exercises like chair stands, rows and step-ups are a great start.
How much protein do older adults need?
Many experts suggest more than the standard minimum, about 1.0 to 1.2 g/kg/day, with more for active or ill older adults. Discuss specific needs with your doctor if you have kidney disease.
Is walking enough to prevent sarcopenia?
Walking is valuable for health but doesn't provide enough resistance for most muscles. Combine it with strength training.
Studies cited
- Cruz-Jentoft AJ et al. (2019). Sarcopenia: revised European consensus on definition and diagnosis. Age and Ageing. doi:10.1093/ageing/afy169
- Liu CJ, Latham NK (2009). Progressive resistance strength training for improving physical function in older adults. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD002759.pub2
- Beckwée D et al. (2019). Exercise Interventions for the Prevention and Treatment of Sarcopenia. A Systematic Umbrella Review. The Journal of Nutrition, Health & Aging. doi:10.1007/s12603-019-1196-8