Research
Mixed
Knee extension strength is a more valid and predictive measure of functional performance and health characteristics in older adults than handgrip strength.
If you are assessing muscle strength for health monitoring, prioritize knee extension strength over handgrip, as it better predicts your functional ability and health status.
GoodSupportsHIGH confidence
Other studies have shown that, compared to handgrip strength, knee extension strength is a better predictor of functional performance [21] and is more strongly associated with health characteristics [22].
Why this rating
Supported by multiple cited studies (Tieland, Martien, Yeung).
Source
Nutritional strategies to improve muscle quality during ageing
Pol Grootswagers · 2020
DOI 10.18174/530397
narrative_review
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Muscle strength is a stronger determinant of quality of life and functional decline in older adults than muscle mass, making strength assessment superior to mass assessment for sarcopenia diagnosis.Good
- Nutritional strategies, including specific supplements and dietary patterns, can improve physical performance and muscle quality in older adults, sometimes even without concurrent exercise.Moderate
Related findings · Mixed
- Bariatric surgery (VSG and RYGB) is the most effective and sustainable treatment for obesity, producing marked and sustained weight loss that non-surgical interventions cannot match.Strong
- Severely protein-deficient diets (2–3% energy) induce lean body mass loss and metabolic imbalance, whereas adequate protein intake (0.66 g/kg/d minimum) is a prerequisite for maintaining muscle, bone, and physiological function.Strong
- For patients with Class III obesity (BMI >39.9 kg/m2), metabolic bariatric surgery (MBS) is significantly more effective than any currently approved medication, with BilioPancreatic Diversion (BPD) showing the highest estimated weight loss.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →