NCT06720155

Sleeper Stretch in CrossFit Participants

The Effects of a Sleeper Stretch Intervention on Measures of Performance and Pain in CrossFit Participants: A Randomized Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 26 (actual)
• Sponsor: Mayo Clinic · Academic / Other
• Sex: All
• Age: 18 Years – 55 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to compare the efficacy of the sleeper stretch in improving shoulder range of motion, strength and upper body performance in CrossFit athletes.

Conditions

• Shoulder Pain

Interventions

Type	Name	Description
BEHAVIORAL	Sleeper stretch	Participants will complete their regularly scheduled workout activities over 8 weeks, with the addition of the sleeper stretch into the dynamic warm-up. Participants will be instructed to lie side-lying with the dominant arm downward, the trunk rotated posteriorly 20 to 30°, the shoulder raised to 90°, the elbow flexed to 90°, and both knees semi-flexed to ensure stability. Participants will then be asked to use the opposite hand to grasp the dominant hand below the wrist and gradually internally rotate the forearm towards the floor; (i.e., the participant will perform passive internal rotation with the opposite arm). This stretch position will be completed on both sides. Participants will be instructed to complete 2 sets of 10 repetitions for each arm and hold the position for \~2 seconds.
BEHAVIORAL	Standard workout	Participants will complete their regularly programmed dynamic warm-ups before scheduled workout for 8 weeks.

Timeline

• Start date: 2025-05-15
• Primary completion: 2025-09-30
• Completion: 2025-09-30
• First posted: 2024-12-06
• Last updated: 2025-10-22

Locations

2 sites across 1 country: United States