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What does the evidence actually say?

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What we hold on resistance, training, older and adult

Read as:resistancetrainingolderadult

9 vetted claims match all four terms. Strongest evidence first.

  1. Trainingwell supported · human data

    Power training, lifting with fast, high-velocity movement, showed a small advantage over conventional slow-velocity resistance training for functional outcomes in over-60s, in a meta-analysis of 11 trials with 377 participants (pooled effect size 0.32).

    What it shows: Meta-analysis of 11 small trials (377 community-dwelling people over 60); the pooled advantage was small, several confidence intervals crossed zero, and no firm conclusion could be made on safety.Meta-analysis · Age Ageing

  2. Trainingwell supported · human data

    In older adults, muscle size gained through resistance training declines again once training stops, a meta-analysis found (Cohen's d -0.83 after cessation); losses were significant after 31-52 weeks of detraining but not after 12-24 weeks.

    What it shows: Meta-analysis of only 6 studies (8 groups) in older adults, with detraining windows ranging from 12 to 52 weeks; the exact time course of muscle loss remains unestablished.Meta-analysis · Int J Environ Res Public Health

  3. Supplementswell supported · human data

    In a meta-analysis of 12 randomised trials (459 older adults with sarcopenia), adding branched-chain amino acid-rich supplements to resistance training improved only skeletal muscle index (SMD 0.337, p = 0.029). Grip strength, walking speed, chair-stand performance, SPPB score, knee extension strength, total lean mass and fat mass showed no significant advantage.

    What it shows: Meta-analysis of 12 randomised trials with only 459 participants in total, all older adults with sarcopenia; the one positive outcome had a confidence interval reaching close to zero and several functional measures pointed in inconsistent directions, so this cannot be read across to younger or healthy trainees.Meta-analysis · Arch Gerontol Geriatr

  4. Metabolic & GLP-1well supported · human data

    A network meta-analysis of 29 randomised trials in 1,301 middle-aged and older adults with type 2 diabetes found high-intensity resistance training produced the largest HbA1c reduction versus usual care (MD -0.62), ranking top of 10 exercise interventions, while moderate-intensity resistance training led on fasting glucose and high-intensity aerobic training drove the biggest gains in peak oxygen uptake. No intervention significantly reduced resting heart rate.

    What it shows: Network meta-analysis of 29 RCTs and 1,301 participants with type 2 diabetes; only the HbA1c result for high-intensity resistance training reached moderate certainty, the fasting glucose and blood pressure networks were rated low or very low, and the VO2peak network was sparse and described as exploratory.Meta-analysis · Front Public Health

  5. Supplementswell supported · human data

    Across 13 randomised trials of 561 adults aged 50 and over, adding HMB to resistance training produced no significant benefit for fat mass (SMD 0.24), muscle mass (SMD 0.05) or muscle strength (SMD 0.04). The authors concluded it cannot be recommended as a routine adjunct for people able to do structured exercise.

    What it shows: Meta-analysis of 13 randomised trials totalling 561 adults aged 50 and over; heterogeneity was high for the strength outcomes and trial durations and doses varied, and the findings say nothing about people unable to train or about younger lifters.Meta-analysis · Age Ageing

  6. Nutritionwell supported · human data

    In a network meta-analysis of 235 randomised trials covering 20,980 untrained older adults, whey protein plus resistance training ranked as the most effective combination for muscle mass (SMD 1.29) and leg strength (SMD 1.16), while whey plus multicomponent training ranked highest for mobility tasks.

    What it shows: Network meta-analysis of 235 RCTs in untrained older adults, so most rankings rest on indirect comparisons; certainty was moderate for muscle mass and leg strength, effects were moderated by participant condition and protein dose, and findings may not transfer to already-trained people.Meta-analysis · Nutrients

  7. Trainingwell supported · human data

    A meta-analysis of 33 randomised trials in 1,396 middle-aged and older adults with type 2 diabetes found resistance training reduced the atherogenic index of plasma (effect size -0.56) and improved glycaemic control, lowering HbA1c by 0.62% and HOMA-IR by 0.90. Systolic blood pressure fell by 3.91 mmHg and body fat by 0.54%, while VO2max rose, with stronger effects in overweight or obese participants.

    What it shows: Meta-analysis of 33 randomised trials with a modest combined sample (n = 1,396) of middle-aged and older adults with type 2 diabetes; heterogeneity was substantial across several outcomes, methodological quality varied, and the included studies were geographically concentrated, so pooled effect sizes are indicative rather than precise.Meta-analysis · Maturitas

  8. Trainingwell supported · human data

    Pooling five randomised trials in older adults (74 doing photobiomodulation plus resistance training, 72 doing sham), adding light therapy to periodised lifting did not significantly improve maximal strength (SMD 0.26, 95% CI -0.08 to 0.59; p = 0.14). A small benefit could not be ruled out.

    What it shows: Systematic review of 11 RCTs (n = 456), but only five trials with 146 participants in total reported one-repetition maximum and were pooled; devices, wavelengths and dosing varied, and the authors say a small effect cannot be excluded.Meta-analysis · Photobiomodul Photomed Laser Surg

  9. Mindwell supported · human data

    Combined aerobic and resistance training improved global cognition in healthy adults aged 65 and over compared with doing nothing, but a meta-analysis of 12 randomised trials found it was no better than active comparison conditions.

    What it shows: Meta-analysis of 12 RCTs (2557 healthy adults aged 65+); the overall pooled effect was non-significant, benefit appeared only against passive controls, and heterogeneity was moderate.Meta-analysis · Exp Gerontol

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  1. Trainingwell supported · human data

    A network meta-analysis of 39 randomised trials in 2,585 overweight or obese university students found combined aerobic-plus-resistance training most effective for improving BMI, body weight and fat mass, while HIIT produced the biggest reduction in body fat percentage.

    What it shows: Network meta-analysis of 39 RCTs restricted to overweight and obese university students; searches relied on a single database platform, and findings may not generalise to other age groups or settings.Meta-analysis · PeerJ

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