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Center of pressure (COP) of the carrying and stepping foot in the pitching motion in baseball Elucidation of trajectory and lower limb muscle synergy

Center of pressure (COP) of the carrying and stepping foot in the pitching motion in baseball Elucidation of trajectory and lower limb muscle synergy - Center of pressure (COP) of the carrying and stepping foot in the pitching motion in baseball Elucidation of trajectory and lower limb muscle synergy

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000040817
Enrollment
15
Registered
2020-08-01
Start date
2020-08-01
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 baseball player

Interventions

Affixing electrodes for surface electromyography Attaching markers for 3D motion analysis equipment Apply for about 90 minutes on the day of measurement.

Sponsors

Gunma University
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: The level of competition in baseball must be at the college or professional level (either on a college hardball team or in the pros) (Players in a baseball league). The position must be pitcher.

Exclusion criteria

Exclusion criteria: Pain or disease in the shoulder or elbow joint in the past six months from the date of measurement.

Design outcomes

Primary

MeasureTime frame
Muscle synergy: calculated from the muscle activity waveform measured by electromyography COP: Floor reaction force is measured with a floor reaction force meter and COP is calculated.—

Secondary

MeasureTime frame
The following parameters are calculated using a 3D motion analysis system Kinematic parameters: joint angle, joint angular velocity Kinematic parameters: inter-articular forces, joint torque—

Countries

Japan

Contacts

Public ContactYoichi Kaizu

Gunma University Gunma University Graduate School of Health Sciences Doctoral Course

h192c001@gunma-u.ac.jp027-220-8948

Outcome results

None listed

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