Trunk muscle activity and ball speed during spike and serve in volleyball -Comparison before and after fatigue intervention for abdominal muscles-

Trunk muscle activity and ball speed during spike and serve in volleyball -Comparison before and after fatigue intervention for abdominal muscles- - Trunk muscle activity and ball speed during spike and serve in volleyball -Comparison before and after fatigue intervention for abdominal muscles-

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000050317

Enrollment

Registered

2023-02-13

Start date

2023-02-20

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 persons

Interventions

Sit up exercise

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Male college student with at least 3 years of volleyball experience (Spike and serve with right hand) (Experienced attacker)

Exclusion criteria

Exclusion criteria: History of spinal surgery or lower extremity surgery Injuries that interfere with spike and serve

Design outcomes

Primary

Measure	Time frame
Changes in trunk and lower extremity muscle activity Changes in ball speed	—

Countries

Japan

Contacts

Public ContactChie Sekine

Niigata University of Health and Welfare Department of Physical Therapy

sekine@nuhw.ac.jp0252574309

Outcome results

None listed

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