Anterior shoulder laxity is associated with posterior shoulder tightness among baseball players

2011 ◽  
Vol 14 ◽  
pp. e66-e67
Author(s):  
K. Laudner ◽  
B. Noel ◽  
T. Deter ◽  
K. Meister
Keyword(s):  
Baseball Players ◽  
Posterior Shoulder ◽  
Shoulder Laxity ◽  
Posterior Shoulder Tightness

Fauls Stretching Routine Produces Acute Gains in Throwing Shoulder Mobility in Collegiate Baseball Players

2007 ◽  
Vol 16 (1) ◽  
pp. 28-40 ◽  
Author(s):  
Eric Sauers ◽  
Anna August ◽  
Alison Snyder
Keyword(s):  
Outcome Measures ◽  
External Rotation ◽  
Test Method ◽  
Baseball Players ◽  
Passive Stretching ◽  
Shoulder Range Of Motion ◽  
Posterior Shoulder ◽  
Collegiate Baseball ◽  
Shoulder Complex ◽  
Posterior Shoulder Tightness

Context:Stretching prior to activity or as a rehabilitative intervention may promote increased throwing shoulder range of motion (ROM) in baseball pitchers.Objective:To evaluate the acute effects of Fauls modified passive stretching routine on throwing shoulder mobility in collegiate baseball players.Design:Repeated measures.Setting:Laboratory.Participants:Thirty collegiate baseball players with unimpaired shoulders.Interventions:Fauls modified passive stretching routine was performed on the throwing shoulder of each subject.Outcome Measures:Shoulder complex and passive isolated glenohumeral internal and external rotation ROM were measured with a goniometer, and posterior shoulder tightness was assessed with the Tyler’s test method using a carpenter’s square. Measurements were made bilaterally.Results:The dominant shoulder displayed significant increases in glenohumeral and shoulder complex internal and external rotation ROM and significantly decreased posterior shoulder tightness following the stretching routine.Conclusion:Application of the Fauls modified passive shoulder stretching routine results in acute gains in throwing shoulder mobility of collegiate baseball players.

Lack of a Relationship Between Glenohumeral External-Rotation Strength and Posterior Shoulder Tightness in Baseball Players

2012 ◽  
Vol 21 (1) ◽  
pp. 12-17 ◽  
Author(s):  
Kevin G. Laudner ◽  
Mike Moline ◽  
Keith Meister
Keyword(s):  
Internal Rotation ◽  
Outcome Measures ◽  
External Rotation ◽  
Professional Baseball ◽  
Baseball Players ◽  
Shoulder Range Of Motion ◽  
Posterior Shoulder ◽  
Rotation Strength ◽  
Posterior Shoulder Tightness ◽  
Throwing Motion

Context:Posterior shoulder tightness has been associated with altered shoulder range of motion (ROM) and several pathologic entities in baseball players. This tightness is hypothesized to be the result of the cumulative stress placed on the posterior shoulder during the deceleration phase of the throwing motion. The role of the posterior shoulder static restraints is to absorb this load while the glenohumeral (GH) external rotators eccentrically decelerate the arm after ball release and therefore also help dissipate this force. As such, the authors hypothesized that if the GH external rotators are weak, an excessive amount of this deceleration force is placed on the static restraints, which may lead to subsequent tightness.Objective:To compare the relationship between GH external-rotation strength and posterior shoulder tightness as measured by GH horizontal-adduction and internal-rotation ROM.Design:Descriptive study.Setting:Laboratory.Participants:45 professional baseball players.Main Outcome Measures:GH external-rotation strength and GH horizontal-adduction and internalrotation ROM.Results:GH external-rotation strength showed no relationship with either GH horizontal-adduction ROM (r2 = .02, P = .40) or GH internal-rotation ROM (r2 = .002, P = .77).Conclusion:There is little to no relationship between GH external-rotation strength and posterior shoulder tightness in professional baseball players. The posterior static restraints of the shoulder may absorb a large majority of the deceleration forces during the throwing motion. Although strengthening of the posterior shoulder dynamic restraints should not be overlooked, routine stretching of the static restraints may be more beneficial for decreasing posterior shoulder tightness and the subsequent risks associated with this tightness, although future research is warranted.

scholarly journals The Acute Effects of Sleeper Stretches on Shoulder Range of Motion

2008 ◽  
Vol 43 (4) ◽  
pp. 359-363 ◽  
Author(s):  
Kevin G. Laudner ◽  
Robert C. Sipes ◽  
James T. Wilson
Keyword(s):  
Range Of Motion ◽  
Effect Size ◽  
Acute Effects ◽  
Baseball Players ◽  
Shoulder Range Of Motion ◽  
Posterior Shoulder ◽  
Increased Risk ◽  
Shoulder Motion ◽  
Posterior Shoulder Tightness ◽  
Shoulder Range

Abstract Context: The deceleration phase of the throwing motion creates large distraction forces at the shoulder, which may result in posterior shoulder tightness and ensuing alterations in shoulder range of motion (ROM) and may result in an increased risk of shoulder injury. Researchers have hypothesized that various stretching options increase this motion, but few data on the effectiveness of treating such tightness are available. Objective: To evaluate the acute effects of “sleeper stretches” on shoulder ROM. Design: Descriptive with repeated measures. Setting: Biomechanics laboratory and 2 separate collegiate athletic training facilities. Patients or Other Participants: Thirty-three National Collegiate Athletic Association Division I baseball players (15 pitchers, 18 position players; age  =  19.8 ± 1.3 years, height  =  184.7 ± 6.4 cm, mass  =  84.8 ± 7.7 kg) and 33 physically active male college students (age  =  20.1 ± 0.6 years, height  =  179.6 ± 6.6 cm, mass  =  83.4 ± 11.3 kg) who reported no recent participation (within 5 years) in overhead athletic activities. Intervention(s): Range-of-motion measurements of the dominant shoulder were assessed before and after completion of 3 sets of 30-second passive sleeper stretches among the baseball players. The ROM measurements in the nonthrower group were taken using identical methods as those in the baseball group, but this group did not perform any stretch or movement between measurements. Main Outcome Measure(s): Internal and external glenohumeral rotation ROM and posterior shoulder motion (glenohumeral horizontal adduction). Results: In the baseball group, posterior shoulder tightness, internal rotation ROM, and external rotation ROM were −3.5° ± 7.7°, 43.8° ± 9.5°, and 118.6° ± 10.9°, respectively, before the stretches and were −1.2° ± 8.8°, 46.9° ± 9.8°, and 119.2° ± 11.0°, respectively, after the stretches. These data revealed increases in posterior shoulder motion (P  =  .01, effect size  =  0.30) and in internal shoulder rotation (P  =  .003, effect size  =  0.32) after application of the stretches. No other differences were observed in the baseball group, and no differences were noted in the nonthrower group. Conclusions: Based on our results, the sleeper stretches produced a statistically significant acute increase in posterior shoulder flexibility. However, this change in motion may not be clinically significant.

scholarly journals Reciprocal inhibition improves posterior shoulder tightness and shoulder ROM in youth baseball players

2021 ◽  
Author(s):  
Tsuyoshi Ichinose ◽  
Hitoshi Shitara ◽  
Tsuyoshi Tajika ◽  
Takuro Kuboi ◽  
Daisuke Shimoyama ◽  
...  
Keyword(s):  
Reciprocal Inhibition ◽  
Baseball Players ◽  
Posterior Shoulder ◽  
Youth Baseball ◽  
Posterior Shoulder Tightness
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