Age and Level of Performance in Major League Baseball

1994 ◽  
Vol 2 (3) ◽  
pp. 221-232
Author(s):  
Ray Over
Keyword(s):  
Athletic Performance ◽  
Major League Baseball ◽  
Experimental Designs ◽  
Cross Sectional ◽  
Baseball Players ◽  
Component Skills ◽  
Major League ◽  
Quasi Experimental ◽  
Batting Performance ◽  
The Relationship

The relationship between age and the level of performance of major league baseball players was assessed through quasi-experimental designs. Whereas cross-sectional comparisons revealed no differences in batting and fielding statistics between younger and older players, longitudinal analysis showed significant decrements in batting performance as players aged from 30 to 35 years. A decline in performance with age was found even among elite players. Age decrements in achievement need to be studied not only in the context of molar measures such as batting statistics but also at a microanalytic level through reference to component skills. This paper outlines a methodology that can be used in assessing the nature and basis of age decrements in skilled athletic performance.

scholarly journals Analysis of Dermatologic Disorders Occurring in Major League Baseball Players

2017 ◽  
Vol 1 (2) ◽  
pp. 83
Author(s):  
Alex M. Glazer MD ◽  
Aaron S. Farberg ◽  
Stephen Donohue ◽  
Darrell S. Rigel
Keyword(s):  
Contact Dermatitis ◽  
Skin Diseases ◽  
Major League Baseball ◽  
Athletic Trainers ◽  
Control Group ◽  
Cross Sectional ◽  
Baseball Players ◽  
Major League ◽  
Skin Conditions ◽  
Dermatologic Disease

Objective: To determine distribution of dermatologic disease among major league baseball (MLB) players and compare the distribution to that seen in the general population.Design: Cross Sectional SurveySetting: Data was collected via anonymous, online, randomized survey in January 2017.Participants: Head athletic trainers for 25 MLB teamsMain Outcome Measures: The distribution of dermatologic disease encountered by MLB athletic trainers for players versus non-player personnel.Results: The 3 most commonly encountered dermatologic conditions for MLB trainers among baseball players were blisters, contact dermatitis, and nail problems including onychomycosis. In contrast, the 3 most common dermatoses seen among the non-player personnel control group were rash, tinea, and concerning skin lesion which more closely resembled the distribution of skin diseases among the general population.Conclusions: MLB players experienced a different mix with a greater proportion of mechanical, infectious, and contact related skin conditions likely due to the baseball-related activities that impact on these athletes’ skin on a day-to-day basis. The prevalence of the dermatologic disorders noted in the study reinforces the importance of focused dermatologic education for trainers to enhance player care. Keywords: baseball; MLB; dermatology; disease distribution; blisters; contact dermatitis; mechanical skin injury; elite athletes

scholarly journals What Are The Monetary Effects Of Education In The Market For Major League Baseball Players?

2011 ◽  
Vol 7 (5) ◽  
Author(s):  
Alexandre Olbrecht ◽  
Steven Bloom
Keyword(s):  
Cross Section ◽  
Major League Baseball ◽  
College Attendance ◽  
Font Size ◽  
Baseball Players ◽  
Major League ◽  
The Relationship

<p class="MsoNormal" style="text-align: justify; margin: 0in 0.5in 0pt;"><span style="font-size: 10pt;"><span style="font-family: Times New Roman;">In this article, we test the relationship between college attendance and earnings for Major League Baseball players. Using a cross-section of non-pitchers from the 2005 season, we find that schooling does not influence earnings. These results seemingly contradict the schooling-earnings theory and suggest that the market for baseball players may be purely talent-driven.</span></span></p>

The Effects of Concussions on Batting Performance in Major League Baseball Players: A Critically Appraised Topic

2021 ◽  
pp. 1-6
Author(s):  
Lindsey R. Turbyfill ◽  
Logan J. Hatley ◽  
Alan R. Needle
Keyword(s):  
Major League Baseball ◽  
The Body ◽  
Control Group ◽  
Clinical Question ◽  
Long Term Effects ◽  
Bottom Line ◽  
Baseball Players ◽  
Major League ◽  
Batting Performance ◽  
The Impact

Clinical Scenario: The impact of concussion in baseball athletes is far reaching although typically less studied than collision sports. The neuromotor sequelae of these injuries can have lasting effects on the high level of coordination needed in baseball skills. In professional athletes, the long-term effects of concussion combined with the high demands for performance can potentially shorten athletes’ careers. Clinical Question: Do Major League Baseball players who have had a concussion compared with those with no history of concussions have decreased batting performance after they return to full participation? Summary of Key Findings: Seven articles meeting criteria for level 2 evidence were identified in this critically appraised topic. Four of 7 studies found deficits in batting performance following concussion. However, the 3 studies that did not identify differences lacked a comparative control group. Clinical Bottom Line: Evidence supports a relationship between concussion and decreased batting performance. This suggests there is a demand for screening and rehabilitation strategies aimed at improving sport-specific neuromotor and coordination skills in these individuals. Strength of Recommendation: Collectively, the body of evidence included to answer the clinical question aligns with the strength of recommendation of B.

scholarly journals The effect of concussion on batting performance of major league baseball players

2019 ◽  
Vol Volume 10 ◽  
pp. 41-48 ◽  
Author(s):  
Bryan H Chow ◽  
Alyssa M Stevenson ◽  
James F Burke ◽  
Eric E Adelman
Keyword(s):  
Major League Baseball ◽  
Baseball Players ◽  
Major League ◽  
Batting Performance

Concussions Are Associated With Decreased Batting Performance Among Major League Baseball Players

2015 ◽  
Vol 43 (5) ◽  
pp. 1127-1133 ◽  
Author(s):  
Erin B. Wasserman ◽  
Beau Abar ◽  
Manish N. Shah ◽  
Daniel Wasserman ◽  
Jeffrey J. Bazarian
Keyword(s):  
Major League Baseball ◽  
Baseball Players ◽  
Major League ◽  
Batting Performance

scholarly journals Relationship of Body Mass Index and Haemoglobin with Cardiorespiration Endurane in Female College Students

2019 ◽  
Vol 12 (2) ◽  
pp. 206
Author(s):  
Nadia Ayu Kusuma Astuti ◽  
Faridah Faridah ◽  
Iis Fatimawati ◽  
Yoga Kertapati
Keyword(s):  
College Students ◽  
Body Mass Index ◽  
Experimental Designs ◽  
Female College Students ◽  
Cross Sectional ◽  
Female College ◽  
Quasi Experimental ◽  
Relationship Of ◽  
The Relationship ◽  
Cardiorespiratory Endurance

Cardiorespiratory endurance is the maximum capacity of using oxygen which can be influenced by Hb and BMI levels, so it does not get tired easily after doing activities. Students tend to have unbalanced Hb and BMI. This study aims to determine the relationship of BMI and hemoglobin levels with cardiorespiratory endurance in female college students.A literature review searched three database (Google Scholar, Pro Quest, and National Journal) that use cross-sectional or quasi-experimental designs published after 2010. The prism checklist is used as a guide to assess the feasibility of studies. The research findings were carried out by tabulating data and narrative analysis. Found 8 journals that met the inclusion criteria based on two broad that affected cardiorespiratory endurance, BMI (n=3), Hb (n=5). Most of these studies use cross-sectional or quasi-experimental designs. The average number of respondents of the study was more than 50 people for the study of the relationship of hemoglobin and body mass index with cardiorespiratory endurance in female college students.The research examined in this article shows that BMI and Hb are associated with cardiorespiratory endurance in female college students. This can be used as nurses to provide education about the importance of maintaining a balance of BMI and hemoglobin levels in increasing cardiorespiratory endurance so that they can perform physical activity maximally. 

scholarly journals Lower Extremity Biomechanics Predicts Major League Baseball Player Performance

2021 ◽  
Vol 9 (7) ◽  
pp. 232596712110152
Author(s):  
Lucas G. Teske ◽  
Edward C. Beck ◽  
Garrett S. Bullock ◽  
Kristen F. Nicholson ◽  
Brian R. Waterman
Keyword(s):  
Lower Extremity ◽  
Major League Baseball ◽  
Reaction Force ◽  
Regression Trees ◽  
Minimal Detectable Change ◽  
Vertical Force ◽  
Baseball Players ◽  
Major League ◽  
Lower Extremity Biomechanics ◽  
Statistical Metrics

Background: Although lower extremity biomechanics has been correlated with traditional metrics among baseball players, its association with advanced statistical metrics has not been evaluated. Purpose: To establish normative biomechanical parameters during the countermovement jump (CMJ) among Major League Baseball (MLB) players and evaluate the relationship between CMJ-developed algorithms and advanced statistical metrics. Study Design: Cohort study; Level of evidence, 3. Methods: MLB players in 2 professional organizations performed the CMJ at the beginning of each baseball season from 2013 to 2017. We collected ground-reaction force data including the eccentric rate of force development (“load”), concentric vertical force (“explode”), and concentric vertical impulse (“drive”) as well as the Sparta Score. The advanced statistical metrics from each baseball season (eg, fielding independent pitching [FIP], weighted stolen base runs [wSB], and weighted on-base average) were also gathered for the study participants. The minimal detectable change (MDC) was calculated for each CMJ variable to establish normative parameters. Pearson coefficient analysis and regression trees were used to evaluate associations between CMJ data and advanced statistical metrics for the players. Results: A total of 151 pitchers and 138 batters were included in the final analysis. The MDC for “load,” “explode,” “drive,” and the Sparta Score was 10.3, 8.1, 8.7, and 4.6, respectively, and all demonstrated good reliability (intraclass correlation coefficient > 0.75). There was a weak but statistically significant correlation between the Sparta Score and wSB ( r = 0.23; P = .007); however, there were no significant correlations with any other advanced metrics. Regression trees demonstrated superior FIP with higher Sparta Scores in older pitchers compared with younger pitchers. Conclusion: There was a positive but weak correlation between the Sparta Score and base-stealing performance among professional baseball players. Additionally, older pitchers with a higher Sparta Score had statistically superior FIP compared with younger pitchers with a similar Sparta Score after adjusting for age.

scholarly journals Children’s Label-Learning Experience within Superordinate Categories Facilitates their Generalization of Labels for Additional Category Members

2017 ◽  
Vol 21 (1) ◽  
pp. 51-83
Author(s):  
Emily E. Russell
Keyword(s):  
Perceptual Organization ◽  
Learning Experience ◽  
Experimental Designs ◽  
Learning Ability ◽  
Future Research ◽  
Learning Biases ◽  
Quasi Experimental ◽  
Multiple Accounts ◽  
The Relationship ◽  
Specific Label

Abstract In two studies, we tested the relationship between children’s label-learning experience and label-learning ability within diverse superordinate categories with complex perceptual organization (animals, clothing, foods). Using both quasi-experimental and experimental designs, we examined 18- and 24-month-old children’s ability to generalize labels for novel members of superordinate categories as a product of their previous experience in learning labels for members of those categories. As predicted, children properly generalized more labels for members of the categories within which they had more label-learning experience than for members of the categories within which they had less label-learning experience. Results are consistent with the idea that children develop category-specific label-learning biases through their experience in learning labels for category members; they carry implications for multiple accounts of vocabulary acquisition and identify directions for future research.

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