Master Evidence Library

Very high methodological heterogeneity; prevalence rather than intervention/outcome evidence; definition of cognitive frailty varies; cross-sectional component dominates many included studies.

Cognitive frailty is common enough to justify attention, but prevalence depends heavily on how both frailty and cognition are measured. This is stronger as a case for multidomain assessment and research standardisation than as a mandate for universal screening with one specific tool.

Pooled cognitive frailty prevalence was 12.2% (95% CI 9.4%-15.7%). Estimates varied substantially by frailty and cognitive instruments; publication-bias analysis suggested prevalence might be underestimated.

Community-dwelling older adults across 66 studies

Huang YR, Rao SY, Li H, et al. Asia Pac Psychiatry. 2026;18(3):e70032.

Global

Observational evidence, extreme heterogeneity, domain measurement inconsistency, residual confounding and healthy-worker effects; certainty rated very low to low.

Physical activity remains associated with lower dementia risk, but this review adds an important systems message: context matters. Leisure-time activity appears protective, while occupational activity may carry different exposures and inequalities. Avoid reducing 'move more' to a simple dose-only message.

Higher physical activity was associated with lower all-cause dementia risk (RR 0.80), Alzheimer disease (0.79) and vascular dementia (0.71). Leisure-time activity was protective (RR 0.76), while occupational (1.20) and commuting activity (1.10) showed higher risk. Certainty across domains was very low to low and heterogeneity was high.

74 longitudinal studies; 4,227,297 adults; median age 67.3 years

Feter N, Iso-Markku P, Markarian T, et al. Lancet Public Health. 2026;11(9):e650-e664.

International

Observational; Korean cohort may limit transportability; subgroup sizes for combined frailty+sarcopenia may reduce precision; surprising absence of association for some combined-group outcomes warrants cautious interpretation.

Frailty assessment may identify future functional vulnerability better than sarcopenia classification alone. This supports keeping frailty and function central in assessment rather than assuming muscle diagnosis captures the whole risk picture.

Frailty alone predicted IADL disability (sHR 1.70), ADL disability (1.54), falls (1.60) and severe mobility limitation (1.92). Coexistent frailty+sarcopenia predicted IADL disability (1.58), while sarcopenia alone was not significantly associated with measured outcomes.

Community-dwelling older adults in the Korean Frailty and Aging Cohort Study

Shin HE, Jung H, Lee D, Won CW, Kim M. Arch Gerontol Geriatr. 2026;150:106369.

South Korea

Observational cohort; healthy volunteer/UK Biobank selection bias; residual confounding and reverse causation possible; 'probable sarcopenia' rather than full diagnostic phenotype in primary outcome.

Objective UK data reinforce the practical message that guideline-level physical activity is strongly associated with lower future sarcopenia, falls and fracture risk. The magnitude is clinically compelling, but causation cannot be assumed because healthier participants may be more active for reasons not fully captured by adjustment.

Meeting 150-300 min/week of moderate-to-vigorous physical activity was associated with lower risks of probable sarcopenia (HR 0.70, 95% CI 0.53-0.91), fractures (0.59, 0.51-0.68), falls (0.53, 0.47-0.61), recurrent fractures (0.60, 0.45-0.81) and recurrent falls (0.53, 0.46-0.62).

UK Biobank adults with 7-day accelerometer-derived physical activity data

Shen F, Liu YY, Yang JQ, et al. Am J Prev Med. 2026;71(3):108370.

United Kingdom

Network rankings depend on indirect comparisons, heterogeneity and consistency assumptions; intervention content/dose varied; SUCRA rankings can overstate certainty; search ended July 2025, so this is not a synthesis of the very latest trials.

The direction of evidence continues to favour multidomain frailty interventions rather than single-component solutions. Exercise remains the common anchor, with cognitive, nutritional, psychological and social elements adding value. Rankings should not be read as proof that one package is universally best.

Exercise+cognitive intervention ranked highest for reducing frailty (SUCRA 84.7%), followed by exercise+cognitive+social support (83%) and exercise+nutrition (72%). Exercise+nutrition+psychological intervention ranked highest for motor ability (77.1%).

Community-dwelling older adults with frailty or prefrailty; 22 RCTs

Gao H, Li X, Leng M, Wang Z. Int J Older People Nurs. 2026;21(5):e70096.

International / predominantly China-led evidence synthesis

Pilot, single facility, small four-arm sample, multiple cognitive outcomes, limited power and generalisability; not specifically a frailty-selected cohort.

The most useful signal is feasibility: even very old assisted-living residents can achieve high attendance with appropriately designed exercise. Cognitive benefits are promising but exploratory and too small-scale to drive practice alone.

Exercise attendance averaged 90.1% with no intervention-related serious adverse events. At 24 weeks, aerobic and mind-body exercise improved MMSE versus control (Δ 3.45 and 3.29 points respectively); mind-body exercise improved immediate story recall and aerobic exercise improved TMT-B. MoCA, naming and TMT-A differences were not significant after multiplicity correction.

Assisted-living residents aged ≥80 years; mean age 86.8 years

Tao Y, Wang H, Zhang Z, et al. J Affect Disord. 2026;408:121913.

China

Single-centre; specific CABG population; open-label design; modest sample; perioperative drug strategy may not translate directly to medical/frailty populations; complication association partly observational within trial context.

This is one of the clearest recent signals that anticholinergic burden may be modifiable in an acute perioperative pathway, with functional—not just cognitive—benefit. It supports reviewing avoidable anticholinergic exposure in older surgical patients, but a single-centre trial in CABG patients is not enough to generalise routine practice across all frailty settings.

Perioperative avoidance of anticholinergic anaesthetic/analgesic drugs improved 90-day independence and frailty outcomes versus standard care: full Katz independence 75.0% vs 41.1% (p<0.001); median CFS 3 vs 4 (p<0.001). Anticholinergic exposure independently predicted total complications (OR 2.43, 95% CI 1.03-5.73).

Adults ≥60 years undergoing CABG with preoperative Anticholinergic Cognitive Burden score ≥3

Çobas M, Demir ZA, Aykut A, et al. J Cardiothorac Vasc Anesth. 2026;40(9):2761-2772.

Turkey

Pilot cluster RCT in only two facilities; small sample; multidomain design means the active component cannot be isolated; sarcopenia outcome was not statistically definitive; requires larger confirmatory trials.

The clearest benefit was functional performance and strength rather than proof of sarcopenia reversal. It supports a whole-person, multidomain model for care-home residents and fits Healthy Ageing Education's practical prevention approach.

A 6-month multidomain programme combining physical training, cognitive stimulation, Mediterranean-style diet/functional foods and vaccination promotion improved SPPB by a between-group 1.8 points (p=0.001) and handgrip by 3.8 kg (p=0.026). Sarcopenia prevalence fell from 37.1% to 15.4% in the intervention group, but the group-by-time interaction was not statistically significant.

90 residents aged ≥70 years from two Italian long-term care facilities

Ceolin C, Pasolini G, Papa MV, et al; I-COUNT study group. J Nutr Health Aging. 2026;30(10):100943.

Italy

Only 8 heterogeneous RCTs; no pooled meta-analysis because of heterogeneity; low-certainty evidence for the main reversal claim; definitions/interventions varied.

This is an important counterbalance to optimistic small trials. Exercise remains valuable for function, but Healthy Ageing Education should avoid claiming that exercise is proven to 'reverse frailty' as a durable clinical state.

Across 8 RCTs, supervised exercise appeared safe and acceptable, but evidence that exercise reliably reverses prefrailty to robustness was mainly low certainty; the more methodologically rigorous evidence was less favourable, especially for sustained reversal.

Adults aged ≥60 years with prefrailty; 8 randomized controlled trials

Xu M, Gao Y, Jin X, et al. J Am Med Dir Assoc. 2026;27(8):106296.

International evidence synthesis

Observational association; reverse causation remains plausible because early cognitive change can worsen nutrition; MMSE-based trajectories are relatively coarse; findings do not prove nutritional treatment prevents cognitive decline.

Nutrition assessment may be relevant not only to weight and muscle outcomes but also to cognitive trajectories. It strengthens the case for integrating nutrition into healthy-ageing and cognitive-health assessment rather than treating it as a separate topic.

Baseline undernutrition was associated with greater odds of belonging to a rapidly declining cognitive trajectory (OR 1.71, 95% CI 1.06–2.77). The association was driven mainly by phenotypic GLIM malnutrition criteria.

3,852 adults aged 65–96 years followed in two longitudinal population-based ageing cohorts

Ravelli A, Prinelli F, Noale M, et al; PROMED-COG Consortium. Nutrition. 2026;148:113215.

Italy; pooled European cohorts

Small single-country trial; retrospective trial registration; baseline differences in body mass/appendicular muscle mass and frailty score; very wide confidence intervals around transition odds; limited generalisability to cognitive impairment, depression or major social barriers; no hard outcomes such as hospitalisation or mortality.

A low-equipment, function-focused exercise model may improve frailty status in primary care without requiring gym machinery. This is clinically interesting for scalable frailty prevention, but the effect size should not be treated as definitive.

Twenty-four weeks of supervised bodyweight interval training increased the probability of transition to a less frail state and improved knee-extension strength, 5-times sit-to-stand and gait speed; body composition changed little.

60 frail older adults in primary health care; mean age 74.0 years; 72.4% women

Vieira LM, Bocalini DS, dos Santos CPC, et al. European Geriatric Medicine. 2026. DOI:10.1007/s41999-026-01579-8.

Brazil

Observational cohort; trajectory classes and IC measurement choices may not transfer directly to all populations.

Supports monitoring change in capacity over time rather than treating ageing status as static; potentially useful for prevention and early-intervention education.

Identified sex-specific trajectories of intrinsic capacity across ageing and examined their associations with functional limitation and quality of life.

Nationally representative Dutch cohort; 1,726 women and 1,520 men followed over 10 years

Qi Y, Hoekstra T, van Schoor NM, Schaap L. Archives of Gerontology and Geriatrics. 2025;138:105954.

Netherlands

Observational and context-specific; the study identifies predictors but does not demonstrate which interventions reverse deterioration.

A useful reminder that capacity is dynamic and can improve as well as decline—important for avoiding fatalistic messages about ageing.

Over four years, intrinsic capacity deteriorated in 32.1%, remained stable in 38.5%, and improved in 29.4%; age, low education and widowhood were independently associated with deterioration.

Community-dwelling adults aged ≥60 years in CHARLS

Zhou Y, Wang G, Li J, et al. Archives of Gerontology and Geriatrics. 2024;124:105452.

China

Observational; associations do not establish that interventions targeting these domains will prevent disability; China-specific context.

Suggests that functional prevention may benefit from identifying specific capacity domains rather than relying only on an overall frailty label.

Lower intrinsic capacity was associated with greater risk of declining ADL/IADL trajectories; locomotion, vitality and psychological function were key domains associated with decline.

CHARLS participants aged ≥60 years, 2015–2020

Wang Q, et al. Archives of Gerontology and Geriatrics. 2025.

China

Observational analysis; harmonisation improves comparability but cannot remove all cross-country measurement and contextual differences.

Particularly valuable to Healthy Ageing Education because it tests a healthy-ageing framework across two different national and socioeconomic contexts, including direct UK relevance and Lusophone relevance through Brazil.

Harmonised intrinsic-capacity measurement across nationally representative UK and Brazilian cohorts and examined associations with sociodemographic characteristics and health outcomes.

Community-dwelling adults aged ≥60 from ELSA (UK) and ELSI-Brazil

Population-based coordinated analysis using ELSA (n=3,392) and ELSI-Brazil (n=3,580). J Gerontol A. 2026.

United Kingdom; Brazil

Measurement-development study; operationalisation of intrinsic capacity remains heterogeneous across studies and settings.

Useful methodological foundation for measuring healthy ageing as capacity and function rather than disease count alone; relevant to how Healthy Ageing Education structures prevention content.

Developed domain-specific and composite intrinsic-capacity scores and validated their longitudinal relationship with functioning.

Adults aged 57 to >90 years in the Longitudinal Aging Study Amsterdam; 10-year follow-up

Qi Y, Schaap LA, Schalet BD, et al. Experimental Gerontology. 2024;197:112599.

Netherlands