changes in viscoelasticity of medial elbow joint during repetitive throwing in high school baseball players

changes in viscoelasticity of medial elbow joint during repetitive throwing in high school baseball players - changes in viscoelasticity of medial elbow joint during repetitive throwing in high school baseball players

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000035070

Enrollment

Registered

2018-11-30

Start date

2018-12-16

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

nothing

Interventions

5 sets of 20 pitches

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Healthy high school students

Exclusion criteria

Exclusion criteria: 1) Persons who have pain in the elbow joint 2) Persons who have an operation history at the elbow joint

Design outcomes

Primary

Measure	Time frame
Tissue elasticity of medial elbow joint by ultrasound elastography	—

Secondary

Measure	Time frame
Medial elbow joint space gapping by ultrasound	—

Countries

Japan

Contacts

Public ContactHiroshi Hattori

Graduate school of Saitama Medical University Department of Medicine

hiroshi.hattori1024@gmail.com049-295-1001

Outcome results

None listed

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