The relationship between the laterality of shoulder muscle strength and the laterality of humeral torsion angle in baseball experienced person.

The relationship between the laterality of shoulder muscle strength and the laterality of humeral torsion angle in baseball experienced person. - The relationship between the laterality of shoulder muscle strength and the laterality of humeral torsion angle in baseball experienced person.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000025780

Enrollment

Registered

2017-01-20

Start date

2017-01-20

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

The healthy adults with baseball experience.

Interventions

Shoulder muscle strength is measured. Measurement position is including laterality of humeral torsion and excluding laterality of humeral torsion.

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: 1, The person 20 years or older and younger than 40 years at the time of obtaining consent. 2, The person that a shoulder does not have a symptom(pain or instability). 3, The person who has experienced baseball at the age of a primary schoolchild. 4, The person that the control group does not have the experience of overhead sports. 5, The person that a document agreement was provided by the free will of the person after having received the explanation of this study.

Exclusion criteria

Exclusion criteria: 1, The person younger than 20 years old at the time of obtaining consent. 2, The person 40 years or older at the time of obtaining consent. 3, The person with symptom on a shoulder(pain or instability). 4, The person that a document agreement by the free will of the person was not provided on participating to this study.

Design outcomes

Primary

Measure	Time frame
Shoulder muscle strength(including laterality if humeral torsion and excluding laterality of humeral torsion).	—

Secondary

Measure	Time frame
Humeral torsion angle. Grip strength.	—

Countries

Japan

Contacts

Public ContactAtsushi Takeda

Osaka Health Science University Graduate school of Osaka Health Science University

a.takeda.pt@gmail.com06-6354-0091

Outcome results

None listed

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