A comparison of static near stereo acuity in youth baseball/softball players and non–ball players

2009 ◽  
Vol 80 (3) ◽  
pp. 121-125 ◽  
Author(s):  
Lauren M. Boden ◽  
Kenneth J. Rosengren ◽  
Daniel F. Martin ◽  
Scott D. Boden
Keyword(s):  
Youth Baseball ◽  
Stereo Acuity

Stereo acuity and visual acuity in head mounted displays

2006 ◽  
Author(s):  
Frank L. Kooi ◽  
Piet Bijl ◽  
Pieter Padmos
Keyword(s):  
Visual Acuity ◽  
Head Mounted Displays ◽  
Stereo Acuity

Relationship between static and dynamic stereo acuity.

1968 ◽  
Vol 76 (1, Pt.1) ◽  
pp. 51-56 ◽  
Author(s):  
S. M. Luria ◽  
Seymour Weissman
Keyword(s):  
Stereo Acuity

Hip internal and external rotation range of motion reliability in youth baseball players

2020 ◽  
Vol 61 (1) ◽  
Author(s):  
Garrett S. Bullock ◽  
Edward C. Beck ◽  
Gary S. Collins ◽  
Stephanie R. Filbay ◽  
Kristen F. Nicholson
Keyword(s):  
Range Of Motion ◽  
External Rotation ◽  
Baseball Players ◽  
Youth Baseball

scholarly journals Influence of chromaticity on vernier and stereo acuity

10.1167/2.9.6 ◽  
2002 ◽  
Vol 2 (9) ◽  
pp. 6 ◽  
Author(s):  
John Krauskopf ◽  
J. D. Forte
Keyword(s):  
Stereo Acuity

Medical Management of Youth Baseball and Softball Tournaments

2013 ◽  
Vol 12 (3) ◽  
pp. 150-155
Author(s):  
Matthew Kanaan ◽  
Tracy R. Ray
Keyword(s):  
Medical Management ◽  
Youth Baseball

scholarly journals Limiting the Pitch Count in Youth Baseball Pitchers Decreases Elbow Pain

2021 ◽  
Vol 9 (3) ◽  
pp. 232596712198910
Author(s):  
Tetsuya Matsuura ◽  
Yuki Takata ◽  
Toshiyuki Iwame ◽  
Jyoji Iwase ◽  
Kenji Yokoyama ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Stress Test ◽  
Daily Maximum ◽  
Test Results ◽  
Level Of Evidence ◽  
Valgus Stress ◽  
Radiographic Images ◽  
Elbow Pain ◽  
Youth Baseball ◽  
Baseball Pitchers

Background: Reducing the number of pitches thrown is regarded as the most effective way to prevent throwing injuries in youth baseball pitchers. However, few studies have compared the effectiveness of limiting the pitch count versus the limiting the number of innings pitched in terms of elbow injuries. Hypothesis: We hypothesized that, compared with inning limits, pitch count limits would lead to greater decreases in elbow pain, range of motion deficits, positive moving valgus stress test results, and the risk of capitellar osteochondritis dissecans (OCD). Study Design: Cohort study; Level of evidence, 3. Methods: This study retrospectively reviewed baseball pitchers aged 8 to 12 years in 2017 and 2018. Inning and pitch count limits in games were set to a daily maximum of 7 innings in 2017 and 70 pitches in 2018. Elbow pain, range of motion, and moving valgus stress test results were evaluated. The presence of capitellar OCD was assessed on ultrasonographic and radiographic images. Results: A total of 352 pitchers in 2017 and 367 pitchers in 2018 participated. The mean pitch count per game was lower in the pitch count limit (CL) group (52.5 ± 16.0) than in the inning limit (IL) group (98.2 ± 19.5) ( P < .001). Compared with the IL group, the CL group had significantly lower rates of elbow pain (40.9% vs 31.9%, respectively; P = .01) and reduced flexion (19.0% vs 10.6%, respectively; P = .001). Multivariate analysis revealed a significant association between elbow pain and age in both the IL and the CL groups ( P < .0001 and P = .02, respectively) and between OCD and elbow pain in the CL group ( P = .04). Conclusion: A pitch count limit of ≤70 pitches per day for baseball pitchers ≤12 years could be more protective against elbow pain and reduced flexion than a limit of ≤7 innings per day, but it may not be effective for reducing the risk of capitellar OCD.

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