Effects of Resistance-based Exercise Snacks With Varying Fragmentation Patterns on Lower Limb Function and Executive Cognition in Pre-frail Older Adults

Starting soon · Not applicable

Conditions studied: Effects of Exercise on Older Adults

In brief

This four-arm randomized pilot trial (N=48-60) compares four fragmentation patterns of a three-exercise resistance snack (sit-to-stand, squat, heel raise; 15 repetitions/exercise/day) in pre-frail older adults (Fried score 1-2, ≥70 years). Groups differ by repetitions/bout×bouts/day: G1=1×15, G2=3×5, G3=5×3, G4=15×1. Outcomes (lower limb strength, balance, executive function) are assessed at baseline, week 4, and week 8. The study will determine the optimal fragmentation pattern and provide effect sizes for a future definitive trial.

Key facts

Study ID

NCT07551206

Run by

Capital University of Physical Education and Sports, China

People needed

60

Starts

2026-05-01

Expected to finish

2026-08-15

Last updated by the study team

2026-04-24

Who can join

Age: 65 and older. Sex: male. Healthy volunteers: not accepted.

You may qualify if…

• 1. Age 65 years or older 2. Community-dwelling (living independently, not in a nursing home or long-term care facility) 3. Pre-frail status confirmed by Fried Frailty Phenotype score of 1-2 4. Mini-Mental State Examination (MMSE) score ≥24 5. Able to walk independently with or without a cane 6. No regular lower limb strength training (less than 2 times per week) in the past 3 months 7. Willing to adhere to the 8-week exercise intervention and complete all assessments 8. Provide written informed consent before any study-related procedures

You may not qualify if…

• 1. Lower limb fracture or joint replacement surgery within the past 6 months 2. Unstable angina or uncontrolled hypertension (resting systolic blood pressure ≥160 mmHg) 3. Severe osteoporosis (T-score <-2.5 with history of fragility fracture) 4. Neurological disorders affecting motor function (e.g., Parkinson's disease, post-stroke hemiplegia) 5. Severe cognitive impairment (MMSE score <24) 6. Unstable cardiac or pulmonary disease (e.g., recent myocardial infarction, severe COPD exacerbation) 7. Severe visual or hearing impairment that limits ability to follow instructions or perform exercises safely 8. Participation in another interventional clinical trial within the past 30 days 9. Any other medical or psychological condition that, in the opinion of the principal investigator, would compromise participant safety or study adherence

Where it is running

• Capital University of Physical Education and Sports, Beijing — Beijing, China

Full record on ClinicalTrials.gov

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