Cross-body versus combined sleeper stretch for posterior shoulder tightness: a randomized controlled trial

Effects of Self-Stretching Techniques on Posterior Shoulder Tightness in Baseball Players: a Randomized Controlled Trial of Sleeper Stretch and Cross-Body Stretch - randomized controlled trial

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000051532

Enrollment

Registered

2023-07-05

Start date

2023-07-08

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

baseball players aged 10 to 15 years

Interventions

Sleeper Stretch Sleeper Stretch And Cross Body Stretch

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: For elementary and junior high school baseball team members who were able to cooperate in participating in the study among players of softball teams

Exclusion criteria

Exclusion criteria: (1) have a history of shoulder surgery, (2) have had shoulder symptoms requiring medical care within the past year, or (3) have shoulder pain of at least 5 out of 10 using a pain numerical scale.

Design outcomes

Primary

Measure	Time frame
The shoulder ROM (internal rotation, external rotation, horizontal adduction, and total rotation) was measured using a digital inclinometer before and after the intervention.	—

Countries

Japan

Contacts

Public ContactJunichi Kawakami

The Nippon Dental University School of Life Dentistry at Niigata Department of Anatomy

japangk12@gmail.com025-267-1500

Outcome results

None listed

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