Effect of subjective pitch-effort of ball throwing on ball velocity and spin

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCT1010230011

Enrollment

Registered

2023-06-12

Start date

2023-06-12

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 participants. Pitching may result in fatigue around the shoulder in the pitching side.

Interventions

The same interventions will be done in all groups. Participants throw a ball with several efforts

50%, 75%, 90%, 100% . Participants throw 5 trials in each effort condition. There is a rest of 3-minutes between conditions.

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: No pain during ball throwing

Exclusion criteria

Exclusion criteria: With pain during ball throwing

Design outcomes

Primary

Measure	Time frame
ball speed, ball spin rate, step length, elbow valgus-torque,	—

Contacts

Public ContactYoichiro Sato

Hokkaido University of Science

sato-y@hus.ac.jp+81-116887192

Outcome results

None listed

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