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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
26
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.
Participants will complete their regularly programmed dynamic warm-ups before scheduled workout for 8 weeks.
Mayo Clinic Health System-La Crosse
La Crosse, Wisconsin, United States
Driftless CrossFit
Onalaska, Wisconsin, United States
Upper body function
Measured by isometric horizontal push test (IHPT), a newly designed test that selectively measures the horizontal component of maximal isometric force, with 3 minutes of rest between each trial. The participants will place their hands on force platforms that sample ground reaction force data at 1000 Hz throughout the test.
Time frame: Baseline, 4 weeks, 8 weeks
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.