Effects of Home-based Lower Extremity Muscle Power Training on Functional Muscle and Balance Performance in Older Adults

NCT ID: NCT06901700

Last Updated: 2025-09-05

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: NA
• Total Enrollment: 40 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-07-16
• Study Completion Date: 2026-04-30

Brief Summary

Background: Muscle power, defined as the rate at which muscular force is generated to produce movement, declines more rapidly with age than muscle strength. The decline in lower extremity muscle power is associated with reduced functional independence, impaired mobility, and an increased risk of falls among older adults. While power training has been shown to improve muscle power, balance, and functional abilities, the feasibility and effectiveness of home-based interventions have not been thoroughly investigated.

Purpose: The aim of this study is to investigate the effects of home-based lower extremity muscle power training program on functional muscle and balance performance in older adults.

Methods: This is a single-blind, randomized controlled trial. Forty community-dwelling older adults will be recruited and randomly assigned to the experimental group (n=20) and control group (n=20). Participants in the experimental group will complete 24 sessions of home-based lower extremity muscle power training targeting the lower limb muscle groups in 8 weeks. The training intensity will be progressively adjusted according to participants' performance. Participants in the control group will maintain their daily activities. In addition, both groups will receive health education. Primary outcomes include functional muscle power measured by the Four-Step Stair Climb Power Test, functional muscle strength measured by Five Times Sit-to-Stand Test, and the functional balance performance measured by the Mini-BESTest, and Timed Up and Go Test. The fall confidence, as the secondary outcome, will be measured by Falls Efficacy Scale International.

Statistical analysis: The SPSS® version 29 will be used for statistical analysis. Independent-t-test or chi-square test will be conducted to compare the baseline demographic characteristics between groups. Two-way repeated measure ANOVA will be used to compare the differences between groups and times, post-hoc analyses will be performed using Tukey's test. The significance level is set at 0.05.

Conditions

Older Adults

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Control group

Health education

Group Type: OTHER

control group

Intervention Type: OTHER

Health education

Experimental group

Total 40\~60 minutes, 3 sessions per week in alternate day for 8 weeks, total 24 sessions

Group Type: EXPERIMENTAL

Experimental Group

Intervention Type: OTHER

Total 40\~60 minutes, 3 sessions per week in alternate day for 8 weeks, total 24 sessions 5 min warm up and 5 min cool down Power training (using body weight as resistance): hip flexor, hip extensor, hip adductor, hip abductor, knee flexor, ankle plantarflexor, hip external rotator, hip internal rotator, knee extensor, ankle dorsiflexor, ankle invertor, ankle evertor

Interventions

Experimental Group

Total 40\~60 minutes, 3 sessions per week in alternate day for 8 weeks, total 24 sessions 5 min warm up and 5 min cool down Power training (using body weight as resistance): hip flexor, hip extensor, hip adductor, hip abductor, knee flexor, ankle plantarflexor, hip external rotator, hip internal rotator, knee extensor, ankle dorsiflexor, ankle invertor, ankle evertor

Intervention Type: OTHER

control group

Health education

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• 65~80 years old community-dwelling adults
• MMSE≥24
• Use smart phone routinely

Exclusion Criteria

• Recent (<1 year) musculoskeletal injury or disability in the lower limbs
• Unstable cardiovascular, neurological disease, or metabolic disease interfering with participating in the study

• Minimum Eligible Age: 65 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

National Yang Ming Chiao Tung University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Ray-Yau Wang, PhD

Role: PRINCIPAL_INVESTIGATOR

National Yang Ming Chiao Tung University

Locations

National Yang Ming Chiao Tung University

Taipei, , Taiwan

Site Status: RECRUITING

Countries

Taiwan

Central Contacts

Ray-Yau Wang, PhD

Role: CONTACT

rywang@nycu.edu.tw

+88628267210

Facility Contacts

Ray-Yau Wang, PhD

Role: primary

rywang@nycu.edu.tw

+886-2-28267210

Other Identifiers

NYCU114046AF

Identifier Type: -

Identifier Source: org_study_id