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Aerobic exercise improves frailty status and cognitive function in frail older adultsAerobic exercise improves frailty and mental health in older adults

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Key Takeaway
Consider aerobic exercise to improve frailty status, cognitive function, and quality of life in frail older adults.

This meta-analysis evaluated the impact of aerobic exercise on frailty status and related outcomes in 4011 adults aged 60 years or older with frailty or pre-frailty. The analysis synthesized data on primary and secondary outcomes including depressive symptoms, muscle strength, cognitive function, quality of life, and lower-limb function.

Aerobic exercise was associated with significant improvements in frailty status (Hedges' g = 0.34) and depressive symptoms (Hedges' g = 0.37). Significant improvements were also observed in cognitive function (Hedges' g = 0.67) and quality of life (Hedges' g = 0.57). Further improvements were noted in muscle strength (Hedges' g = 0.21) and lower-limb function, specifically in TUGT (Hedges' g = 0.29) and 30CST (Hedges' g = 0.40).

Limitations to the findings include significant between-study heterogeneity and sparse data regarding higher doses. No single superior type of aerobic exercise, such as Tai Chi, dance, or walking, was identified. Clinicians may consider aerobic exercise to improve frailty and functional outcomes in older adults. While dose-response data suggest starting with achievable low-to-moderate volumes, the lack of specific data at higher doses prevents the determination of an optimal dose.

Living with frailty can make daily tasks feel harder and impact your independence. New data shows that aerobic exercise can help older adults who are currently frail or at risk of becoming frail. This type of exercise helps improve physical strength and overall quality of life.

Researchers looked at data from over 4,000 adults aged 60 and older. They found that aerobic exercise significantly improved frailty status and reduced symptoms of depression. The study also showed improvements in muscle strength, cognitive function, and the ability to move and use the lower limbs.

While the study confirms that aerobic exercise is beneficial, it did not find one specific type, like walking or dancing, to be better than the others. Because of differences in how studies were conducted, experts cannot yet say exactly what the perfect amount of exercise is, but even low to moderate amounts show positive results.

What this means for you:
Aerobic exercise improves frailty, mood, and physical function in older adults.

Common questions

What specific types of exercise are best for frailty?

The study did not find one specific type of aerobic exercise, such as walking, dancing, or Tai Chi, to be superior to others. Any form of aerobic exercise was shown to improve frailty status and physical function in older adults.

How does aerobic exercise affect mental health in older adults?

The research found that aerobic exercise significantly improved symptoms of depression in adults aged 60 and older who were experiencing frailty or pre-frailty.

Does aerobic exercise help with physical movement and strength?

Yes, the data shows that aerobic exercise improved muscle strength, lower-limb function, and cognitive function in the group of 4,011 adults studied.

Study Details

Study typeMeta analysis
Sample sizen = 4,011
EvidenceLevel 1
Follow-up720.0 mo
PublishedOct 2026
View Original Abstract ↓
BACKGROUND AND AIMS: Aerobic exercise potentially mitigates frailty, yet its definitive efficacy and optimal prescription parameters remain unclear. This study aimed to quantify the efficacy and dose-response relationship of aerobic exercise on frailty and health outcomes. METHODS: We conducted a systematic review and dose-response meta-analysis of randomized controlled trials involving adults ≥60 years with frailty or pre-frailty (searched through March 2026). Heterogeneous exercise protocols were standardized to metabolic equivalent (MET)-minutes/week. We employed random-effects models for efficacy, restricted cubic splines to model non-linear dose-response associations, and the GRADE framework to evaluate the certainty of evidence. RESULTS: Forty-four studies (n = 4011) were included. Aerobic exercise significantly improved frailty status (Hedges' g = 0.34), depressive symptoms (Hedges' g = 0.37), muscle strength (Hedges' g = 0.21), cognitive function (Hedges' g = 0.67), quality of life (Hedges' g = 0.57), and lower-limb function (Hedges' g = 0.29 for TUGT; Hedges' g = 0.40 for 30CST) compared with usual care. Subgroup analyses showed consistent efficacy across modalities (e.g., Tai Chi, dance, walking) with no single superior type. CONCLUSIONS: Available evidence suggests that aerobic exercise may improve frailty status and several functional and psychosocial outcomes in frail or pre-frail older adults. The dose-response findings support initiating achievable low-to-moderate volumes of aerobic exercise; however, between-study heterogeneity and sparse data at higher doses preclude firm conclusions regarding an optimal dose. Exercise prescriptions should therefore be individualized according to participants' tolerance, preferences, and clinical status. REGISTRATION: PROSPERO CRD420251152761.
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