The validity of the FMS ASLR test and the active leg raising test to assess the flexibility of the hamstring muscles of college baseball players

AbstractThe relationships among the time of imagery use on performance and self-efficacy in college baseball players during a hitting task was examined. Participants (n=24) were randomly assigned to one of three imagery conditions: (a) before practice, (b) during practice, (c) after practice. A one-shot MG-M imagery intervention was used. Results from a 3 (imagery group) ×2 (pretest and posttest) repeated measures ANOVA showed only a significant time by imagery group interaction for self-efficacy (F (2, 21)=4.67, p<0.05). These findings suggest that imagery had a stronger psychological effect than physical effect.

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A COMPARISON OF THE STRENGTH OF THE ABDUCTION OF THE LITTLE AND INDEX FINGERS AND PALMAR ABDUCTION AND OPPOSITION OF THE THUMB BETWEEN COLLEGE BASEBALL PLAYERS AND INEXPERIENCED SPORTS PLAYERS

Journal of Musculoskeletal Research ◽

10.1142/s0218957710002466 ◽

2010 ◽

Vol 13 (02) ◽

pp. 75-82 ◽

Cited By ~ 1

Author(s):

Takako Chikenji ◽

Hajime Toda ◽

Chin Gyoku ◽

Naoki Oikawa ◽

Masaki Katayose ◽

...

Keyword(s):

Statistical Difference ◽

Index Finger ◽

Baseball Players ◽

Intrinsic Muscle ◽

Batting Performance ◽

College Baseball ◽

Muscle Groups ◽

Muscles Of The Hand ◽

Intrinsic Muscles ◽

Little Finger

The purpose of this study was to investigate the strengths of four intrinsic muscles of the hand of college baseball players. The strengths of four intrinsic muscle groups were measured by the Rotterdam Intrinsic Hand Myometer (RIHM) which has been developed to assess the abduction of the little finger and index finger, and palmar abduction and opposition of the thumb. The strengths of these four intrinsic muscle groups were compared between baseball players and inexperienced sports players. The abduction of the little finger and index finger, and the opposition of the thumb in both the dominant and nondominant hands of the baseball players were notably stronger than those of the inexperienced sports players. There was no statistical difference in the strength of the palmar abduction of the thumb between the two groups. The results suggest that the specific intrinsic muscles in both the dominant and nondominant hands might be strengthened by repeated baseball practices, such as a batting performance, which requires strain in both the dominant and nondominant hands repeatedly.

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Assessment of Subacromial Space and Its Relationship With Scapular Upward Rotation in College Baseball Players

Journal of Sport Rehabilitation ◽

10.1123/jsr.22.3.216 ◽

2013 ◽

Vol 22 (3) ◽

pp. 216-223 ◽

Cited By ~ 10

Author(s):

Stephen John Thomas ◽

Charles Buz Swanik ◽

Thomas W. Kaminski ◽

Jill S. Higginson ◽

Kathleen A. Swanik ◽

...

Keyword(s):

Outcome Measures ◽

Laboratory Setting ◽

Subacromial Space ◽

Baseball Players ◽

Type Design ◽

Dependent Variables ◽

Injured Population ◽

College Baseball ◽

Acromiohumeral Distance ◽

The Relationship

Context:Subacromial impingement is a common injury in baseball players and has been linked to a reduction in the subacromial space. In addition, it has been suggested that decreases in scapular upward rotation will lead to decreases in the subacromial space and ultimately impingement syndrome.Objective:The objective of this study was to evaluate the relationship between acromiohumeral distance and scapular upward rotation in healthy college baseball players.Design:Posttest-only study design.Setting:Controlled laboratory setting.Participants:24 healthy college baseball players.Intervention:Participants were measured for all dependent variables at preseason.Main Outcome Measures:Acromiohumeral distance at rest and 90° of abduction was measured with a diagnostic ultrasound unit. Scapular upward rotation at rest and 90° of abduction was measured with a digital inclinometer.Results:Dominant-arm acromiohumeral distance at rest and 90° of abduction (P = .694, P = .840) was not significantly different than in the nondominant arm. In addition, there was not a significant correlation between acromiohumeral distance and scapular upward rotation at rest and 90° of abduction for either the dominant or the nondominant arm.Conclusions:These results indicate that the acromiohumeral distance is not adapting in the dominant arm in healthy throwing athletes. In addition, a relationship was not identified between acromiohumeral distance and scapular upward rotation, which was previously suggested. These results may suggest that changes that are typically seen in an injured population may be occurring due to the injury and are not preexisting. In addition, scapular upward rotation may not be the only contributing factor to acromiohumeral distance.

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