Fastball velocity trends in short-season minor league baseball

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Bibliographic Details
Title translated into German:Trends der Fastball-Geschwindigkeit im Kurz-Saison-Minor-League-Baseball
Author:Crotin, Ryan L.; Bhan, Shivam; Karakolis, Tom; Ramsey, Dan K.
Published in:Journal of strength and conditioning research
Published:27 (2013), 8, S. 2206-2212, Lit.
Format: Publications (Database SPOLIT)
Publication Type: Journal article
Media type: Print resource
Language:English
ISSN:1064-8011, 1533-4287
Keywords:
Online Access:
Identification number:PU201311007661
Source:BISp
TY  - JOUR
AU  - Crotin, Ryan L.
A2  - Crotin, Ryan L.
A2  - Bhan, Shivam
A2  - Karakolis, Tom
A2  - Ramsey, Dan K.
DB  - BISp
DP  - BISp
KW  - Baseballspiel
KW  - Bewegungsgeschwindigkeit
KW  - Sportspiel
KW  - Wurf
LA  - eng
TI  - Fastball velocity trends in short-season minor league baseball
TT  - Trends der Fastball-Geschwindigkeit im Kurz-Saison-Minor-League-Baseball
PY  - 2013
N2  - Diminishing baseball velocities are objective measures to delineate pitching fatigue. Yet, velocity changes over the course of a competitive season vs. a single game remain unknown. This study examined fastball velocity (FBV) trends of minor league pitchers over an 8-game span. We assumed that accumulation of pitches would cause similar velocity decreases within games to produce velocity decreases between games pitched. Retrospective analysis of major league–affiliated pitching charts indicated mean FBVs, game pitches thrown, game innings pitched, rest days, and pitching work to rest ratios (PWRRs) for 12 pitchers over 8 games. Regression analyses (p < 0.05) were performed using the ordinary least squares method. The FBV was the dependent variable, where the explanatory variable was the game number (representing cumulative workload). Further analyses were performed on ball velocity differences predicted by days rest and PWRRs. The FBV increased linearly for the first 8 games of the season (R2 = 0.91, F(1,7) = 64.67, p < 0.001). Over the 8 - game period, mean FBVs increased 0.25 m/s (0.56 mph) with the greatest velocity increase occurring between the first and eighth game at 1.97 m/s (4.4 mph). Days rest and PWRRs did not impact FBV differences. When compared with previous research, minor league pitchers at the Class A Short Season level did not show similar exertion responses to cumulative workloads (pitches and innings pitched). Recovery factors (rest days, PWRRs, and training) also did not impact FBVs. Velocity increases may be attributable to biomechanical compensations, skill development, strength and conditioning regimens, multistarter rotations, and other performance-related factors. Strength and conditioning professionals should be aware of ball velocity trends, as apparent changes may infer neuromuscular fatigue and increased injury susceptibility, which require in-season training modifications. Verf.-Referat
L2  - https://dx.doi.org/10.1519/JSC.0b013e31827e1509
DO  - 10.1519/JSC.0b013e31827e1509
SP  - S. 2206-2212
SN  - 1064-8011
JO  - Journal of strength and conditioning research
IS  - 8
VL  - 27
M3  - Gedruckte Ressource
ID  - PU201311007661
ER  -