Effect of precontraction of the transversus abdominis muscle during standing trunk flexion on spinal muscle activity and biomechanics

Effect of precontraction of the transversus abdominis muscle during standing trunk flexion on spinal muscle activity and biomechanics - Transversus abdominis preceding contraction test

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000051369

Enrollment

Registered

2023-06-17

Start date

2023-06-22

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Healthy men person with chronic lower back pain(No medical history)

Interventions

Intervention 1 No transversus abdominis contraction (washout 1 week) transversus abdominis contraction Intervention 2 transversus abdominis contraction (washout 1 week) No transversus abdominis c

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Males over 20 years old Able to perform standing trunk forward bending movements BMI<30kg/m2 No leg pain of nerve root and cauda equina origin

Exclusion criteria

Exclusion criteria: Patients with leg pain of nerve root and cauda equina origin Patients with a history of surgery Patients with pain so severe that analgesics must be taken internally.

Design outcomes

Primary

Measure	Time frame
Amount of change in maximum spinal flexion angle Changes in EMG waveforms at rest and during exercise	—

Countries

Japan

Contacts

Public Contactnatsuru kuchiwaki

Kurume University Graduate School of Medicine Rehabilitation Biomechanics

natsuru726.9.7@gmail.com090-9073-1284

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026