Is the Flexi-bar exercise tool useful for combating loss of muscular strength?

The effect and mechanisms of Flexi-bar on muscle strength and physical performance in the older people with dynapenia

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN14316668

Enrollment

114

Registered

2020-11-10

Start date

2021-09-06

Completion date

Unknown

Last updated

2026-02-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dynapenia Musculoskeletal Diseases

Interventions

Current interventions as of 25/03/2021: The participants will be randomized to flexi-bar group, sham group and control group (no training). Training sessions (3 days/week, for 12 weeks) will be conduc

Flexi-Sports, Germany) with shoulder flexed 90° to perform an up-and-down vibration exercise. The sham group will hold the same flexi-bar with no active vibration workout to performa same up-and-down

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Participants aged 65 years or above attending the Health Service Centers in General Hospital of the Yangtze River Shipping, Wuhan 2. Men and women with muscle strength less than 26kg and 18kg, respectively

Exclusion criteria

Exclusion criteria: 1. Severe heart problem 2. Neuro-degenerative diseases 3. Vestibular disorders 4. Cognitive impairment 5. Severe osteoporosis 6. Visual impairment 7. Mental diseases

Design outcomes

Primary

Measure	Time frame
Current primary outcome measure as of 16/06/2021: Fitness measured using the timed-up-and-go test (TUG) at baseline, 1 day after training completion, and 12 weeks after training completion Previous primary outcome measure: Handgrip muscle strength will be measured using a hand dynamometer at baseline, after intervention and follow-up	—

Secondary

Measure	Time frame
Current secondary outcome measures as of 16/06/2021: 1. Handgrip muscle strength measured using a hand dynamometer at baseline, 1 day after training completion, and 12 weeks after training completion 2. Fitness measured using five-repetition sit-to-stand test and 10-meter walking test at baseline, 1 day after training completion, and 12 weeks after training completion 3. Levels of serum albumin and hemoglobin measured by blood test at baseline, 1 day after training completion, and 12 weeks after training completion Previous secondary outcome measures: 1. Fitness measured using timed-up-and-go test, five-repetition sit-to-stand, 10-meter walking test at baseline, after intervention and follow-up. 2. Clinical parameters (C-reactive protein, Hemoglobin, Serum albumin, Serum creatinine, Serum creatinine and Glucose) will be measured by blood test at pre and post-intervention.	—

Measure

Time frame

Current secondary outcome measures as of 16/06/2021: 1. Handgrip muscle strength measured using a hand dynamometer at baseline, 1 day after training completion, and 12 weeks after training completion 2. Fitness measured using five-repetition sit-to-stand test and 10-meter walking test at baseline, 1 day after training completion, and 12 weeks after training completion 3. Levels of serum albumin and hemoglobin measured by blood test at baseline, 1 day after training completion, and 12 weeks after training completion Previous secondary outcome measures: 1. Fitness measured using timed-up-and-go test, five-repetition sit-to-stand, 10-meter walking test at baseline, after intervention and follow-up. 2. Clinical parameters (C-reactive protein, Hemoglobin, Serum albumin, Serum creatinine, Serum creatinine and Glucose) will be measured by blood test at pre and post-intervention.

—

Countries

China

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 14, 2026