Motor unit recruitment and muscle oxidative capacity: age effects

Motor unit recruitment and muscle oxidative capacity to different speeds of muscle contractions: age effects

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20210714005

Enrollment

Registered

2021-07-14

Start date

2021-08-12

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

A preliminary safety study isokinetic, quadriceps, oxygen consumption, motor unit, surface electromyography, near-infrared spectroscopy, vastus lateralis

Interventions

the person with age between 20 to 40 years old,the person with age between 50 to 80 years old

Other,Other

Young adults,middle-aged and older adults

Eligibility

Sex/Gender

All

Age

20 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. young adults (age: 20-40 years old) or middle-aged and older adults(age: 50-80 years old)2. can follow instruction and perform physical function test without any discomfort

Exclusion criteria

Exclusion criteria: 1.have acute or terminal illness.2.have cardiovascular and/or respiratory disorder 3.have disease or impairment of neurological or musculoskeletal system which might influence their performance

Design outcomes

Primary

Measure	Time frame
Motor unit recruitment after provided informed consent Surface electromyogram,Muscle oxidative parameters after provided informed consent Near-infrared spectroscopy (NIRS)	—

Secondary

Measure	Time frame
Muscle function after provided informed consent Isokinetic dynamometer	—

Countries

Taiwan

Contacts

Public ContactChiaoNan Chen

National Yang Ming Chiao Tung university

chiaonanchen@gmail.com886228267000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026