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Caffeinated chewing gum improves the batting and pitching performance of female softball players: a randomized crossover study.
Shiu, Yi-Jie; Chen, Feng-Yin; Chen, Che-Hsiu; Chen, Miao-Yi; Lee, Wei-Ching; Lin, Yun-Zheng; Chiu, Chih-Hui.
Afiliación
  • Shiu YJ; Department of Physical Education and Sport Sciences, National Taiwan Normal University, Taipei, Taiwan (ROC).
  • Chen FY; Department of Sport Performance, National Taiwan University of Sport, Taichung, Taiwan (ROC).
  • Chen CH; Department of Sport Performance, National Taiwan University of Sport, Taichung, Taiwan (ROC).
  • Chen MY; Department of Athletic Performance, National Taiwan Normal University, Taipei, Taiwan (ROC).
  • Lee WC; Department of Sport Performance, National Taiwan University of Sport, Taichung, Taiwan (ROC).
  • Lin YZ; Department of Exercise and Health Sciences, National Taiwan University of Sport, Taichung, Taiwan (ROC).
  • Chiu CH; Department of Exercise and Health Sciences, National Taiwan University of Sport, Taichung, Taiwan (ROC) - chiuch@gm.ntus.edu.tw.
J Sports Med Phys Fitness ; 2024 Sep 03.
Article en En | MEDLINE | ID: mdl-39225020
ABSTRACT

BACKGROUND:

The purpose of this study was to investigate the effects of caffeinated chewing gum on female softball pitching and hitting performance in trained female softball fielders and pitchers.

METHODS:

Twenty-four trained female softball players (10 pitchers and 14 fielders) were divided into a caffeine chewing gum trial (CAF) or a placebo trial (PLA) in a single-blind, randomized, crossover experimental design. Two pieces of gum containing 100 mg of caffeine (CAF) or without caffeine (PLA) were chewed for 10 minutes and then spit out, followed by a 15-minute warm-up. The physical tests included grip strength and countermovement jump (CMJ). The softball-specific tests included pitching or hitting. The two trials were separated by seven days.

RESULTS:

The CAF trial had significantly higher grip strength than the PAL trial in fielder (P=0.032, Cohen's d=0.29) and pitcher (P=0.016, Cohen's d=0.33). The height of CMJ in fielders was significantly higher in the CAF trial than in the PLA trial (P=0.015, Cohen's d=0.65) but not in pitchers (P=0.596, Cohen's d=0.15). The fielder's average and maximum batting exit speeds were significantly higher in the CAF trial than in the PLA trial (P<0.05). The average and max fastball speeds of the CAF trial were significantly higher than that of the PLA trial in pitchers (P<0.05).

CONCLUSIONS:

The study showed that chewing gum containing two pieces of gum containing 100 mg of caffeine effectively improved female softball fielder's batting performance and pitcher's pitching performance.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Sports Med Phys Fitness Año: 2024 Tipo del documento: Article Pais de publicación: Italia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Sports Med Phys Fitness Año: 2024 Tipo del documento: Article Pais de publicación: Italia