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NCT01065181 Clinical Trial

Youth Throwers Respond to Stretching

Shoulder Posterior Capsular Contracture Clinical Trial

— Safethrow  

Official title:
Shoulder Posterior Capsular Contracture in Youth Baseball Players: It Can be Improved by Stretching

Clinical Trial Details — Status: Active, not recruiting

Administrative data
NCT number NCT01065181
Other study ID # Safethrow01
Secondary ID
Status Active, not recruiting
Phase
First received February 6, 2010
Last updated March 24, 2018
Start date January 2008
Est. completion date September 2019

Study information
Verified date March 2018
Source Metzger, Charles, M.D.
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The purpose of this study is to document the rates of youth baseball player demographics, incidence of arm pain, usage of different pitch types, and degree of internal rotation contracture in the throwing versus the non-throwing shoulder. We followed a subgroup of players for a year to see if a particular stretch would help reduce the internal rotation contracture.

Description:

Introduction: Overhead throwing can cause contracture of the shoulder posterior-inferior glenohumeral ligament which can lead to injuries such as superior labral tears. We show that instruction on stretching can favorably alter progression of posterior contractures.

Methods: 1261 male baseball players ages 7-15 completed a questionnaire and shoulder examinations. Measurements of rotation of both shoulders were made with the subjects in the supine position with the scapula stabilized. Glenohumeral internal rotation deficit (GIRD) was calculated. Pitch type and player position, among other variables, were recorded. The prospective cohort was 175 players who were examined twice a year apart. Players with excessive GIRD (exGIRD) were given stretching instruction, and the control group was those without exGIRD who were not given instruction. Change in GIRD as a result of this intervention was documented.

Recruitment information / eligibility
Status Active, not recruiting
Enrollment 1261
Est. completion date September 2019
Est. primary completion date September 2019
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Male
Age group 8 Years to 15 Years
Eligibility Inclusion Criteria:

- male

- baseball player

- ages 8 to 15

Exclusion Criteria:

- female (suspected hormonal/gender influences on capsular elasticity)

- prior throwing arm surgery

Study Design

Related Conditions & MeSH terms

Locations
Country Name City State
n/a

Sponsors (1)
Lead Sponsor Collaborator
Metzger, Charles, M.D.

References & Publications (17)

Awan R, Smith J, Boon AJ. Measuring shoulder internal rotation range of motion: a comparison of 3 techniques. Arch Phys Med Rehabil. 2002 Sep;83(9):1229-34. — View Citation

Bach HG, Goldberg BA. Posterior capsular contracture of the shoulder. J Am Acad Orthop Surg. 2006 May;14(5):265-77. Review. — View Citation

Dun S, Loftice J, Fleisig GS, Kingsley D, Andrews JR. A biomechanical comparison of youth baseball pitches: is the curveball potentially harmful? Am J Sports Med. 2008 Apr;36(4):686-92. Epub 2007 Nov 30. — View Citation

Dwelly PM, Tripp BL, Tripp PA, Eberman LE, Gorin S. Glenohumeral rotational range of motion in collegiate overhead-throwing athletes during an athletic season. J Athl Train. 2009 Nov-Dec;44(6):611-6. doi: 10.4085/1062-6050-44.6.611. — View Citation

Fleisig GS, Weber A, Hassell N, Andrews JR. Prevention of elbow injuries in youth baseball pitchers. Curr Sports Med Rep. 2009 Sep-Oct;8(5):250-4. doi: 10.1249/JSR.0b013e3181b7ee5f. Review. — View Citation

Grossman MG, Tibone JE, McGarry MH, Schneider DJ, Veneziani S, Lee TQ. A cadaveric model of the throwing shoulder: a possible etiology of superior labrum anterior-to-posterior lesions. J Bone Joint Surg Am. 2005 Apr;87(4):824-31. — View Citation

Kerut EK, Kerut DG, Fleisig GS, Andrews JR. Prevention of arm injury in youth baseball pitchers. J La State Med Soc. 2008 Mar-Apr;160(2):95-8. Review. — View Citation

Klingele KE, Kocher MS. Little league elbow: valgus overload injury in the paediatric athlete. Sports Med. 2002;32(15):1005-15. Review. — View Citation

Lyman S, Fleisig GS, Andrews JR, Osinski ED. Effect of pitch type, pitch count, and pitching mechanics on risk of elbow and shoulder pain in youth baseball pitchers. Am J Sports Med. 2002 Jul-Aug;30(4):463-8. — View Citation

Lyman S, Fleisig GS, Waterbor JW, Funkhouser EM, Pulley L, Andrews JR, Osinski ED, Roseman JM. Longitudinal study of elbow and shoulder pain in youth baseball pitchers. Med Sci Sports Exerc. 2001 Nov;33(11):1803-10. — View Citation

Lyman S, Fleisig GS. Baseball injuries. Med Sport Sci. 2005;49:9-30. Review. — View Citation

Mair SD, Uhl TL, Robbe RG, Brindle KA. Physeal changes and range-of-motion differences in the dominant shoulders of skeletally immature baseball players. J Shoulder Elbow Surg. 2004 Sep-Oct;13(5):487-91. — View Citation

Nakamizo H, Nakamura Y, Nobuhara K, Yamamoto T. Loss of glenohumeral internal rotation in little league pitchers: a biomechanical study. J Shoulder Elbow Surg. 2008 Sep-Oct;17(5):795-801. doi: 10.1016/j.jse.2008.02.013. Epub 2008 Jun 20. — View Citation

Nissen CW, Westwell M, Ounpuu S, Patel M, Solomito M, Tate J. A biomechanical comparison of the fastball and curveball in adolescent baseball pitchers. Am J Sports Med. 2009 Aug;37(8):1492-8. doi: 10.1177/0363546509333264. Epub 2009 May 15. — View Citation

Olsen SJ 2nd, Fleisig GS, Dun S, Loftice J, Andrews JR. Risk factors for shoulder and elbow injuries in adolescent baseball pitchers. Am J Sports Med. 2006 Jun;34(6):905-12. Epub 2006 Feb 1. — View Citation

Reiss M, Reiss G. [Current aspects of handedness]. Wien Klin Wochenschr. 1999 Dec 23;111(24):1009-18. Review. German. — View Citation

Trakis JE, McHugh MP, Caracciolo PA, Busciacco L, Mullaney M, Nicholas SJ. Muscle strength and range of motion in adolescent pitchers with throwing-related pain: implications for injury prevention. Am J Sports Med. 2008 Nov;36(11):2173-8. doi: 10.1177/036 — View Citation

* Note: There are 17 references in all — Click here to view all references

Outcome
Type Measure Description Time frame Safety issue
Primary Degree of decrease in internal rotation contracture of the shoulder GIRD is the Glenohumeral Internal Rotation Deficit. It is the difference in the internal rotation of the throwing shoulder compared to the non-throwing shoulder One year

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