Effects of Caffeine Ingestion on Physical Performance in Elite Women Handball Players: A Randomized, Controlled Study

Effects of Caffeine Ingestion on Physical Performance in Elite Women Handball Players : A Randomized, Controlled Study / Alejandro Muñoz, Álvaro López-Samanes, Alberto Pérez-López, Millán Aguilar-Navarro, Berta Moreno-Heredero, Jesús Rivilla-García, Pablo González-Frutos, José Pino-Ortega, Esther Morencos, Juan Del Coso. - (International Journal of Sports Physiology and Performance (2019) 0847 (25 April); p. 1-8).
- PMID: 32335531.
- DOI: 10.1123/ijspp.2019-0847
_________________________________________________

Abstract

PURPOSE:
To investigate the effects of acute caffeine (CAFF) intake on physical performance in elite women handball players.

METHODS:
A total of 15 elite women handball players participated in a randomized, double-blind study. In 2 different trials, participants ingested either a placebo (cellulose) or 3 mg of CAFF per kilogram of body mass (mg/kg bm) before undergoing a battery of neuromuscular tests consisting of handball throws, an isometric handgrip strength test, a countermovement jump, a 30-m sprint test (SV) and a modified version of the agility T test. Then, participants performed a simulated handball game (2 × 20 min), and movement patterns were recorded with a local positioning system.

RESULTS:
Compared with the placebo, CAFF increased ball velocity in all ball throws (P = .021-.044; effect size [ES] = 0.39-0.49), strength in isometric handgrip strength test (350.8 [41.2] vs 361.6 [46.1] N, P = .034; ES = 0.35), and countermovement-jump height (28.5 [5.5] vs 29.8 [5.5] cm; P = .006; ES = 0.22). In addition, CAFF decreased running time in the SV (4.9 [0.2] vs 4.8 [0.3] s; P = .042; ES = -0.34). In the simulated game, CAFF increased the frequency of accelerations (18.1 [1.2] vs 18.8 [1.0] number/min; P = .044; ES = 0.54), decelerations (18.0 [1.2] vs 18.7 [1.0] number/min; P = .032; ES = 0.56), and body impacts (20 [8] vs 22 [10] impacts/min; P = .032; ES = 0.30). However, postexercise surveys about self-reported feelings of performance indicate that players did not feel increased performance with CAFF.

CONCLUSION:
Preexercise ingestion of 3 mg/kg bm of CAFF improved ball-throwing velocity, jump, and sprint performance and the frequency of in-game accelerations and decelerations in elite women handball players.

Parameters:

Science
Study
Date:
25 April 2020
People
Aguilar-Navarro, Millán
Del Coso, Juan
González-Frutos, Pablo
López-Samanes, Álvaro
Morencos, Esther
Moreno-Heredero, Berta
Muñoz, Alejandro
Pérez-López, Alberto
Pino-Ortega, José
Rivilla-García, Jesús
Country
Spain
Language
English
Other organisations
Universidad de Alcalá - University of Alcalá
Universidad de Murcia - University of Murcia
Universidad Francisco de Vitoria - Francisco de Vitoria University
Universidad Politécnica de Madrid (UPM) - Polytechnic University of Madrid
Universidad Rey Juan Carlos (URJC) - King Juan Carlos University
Doping classes
S6. Stimulants
Substances
Caffeine
Document category
Abstract
Category
  • Legal Source
  • Education
  • Science
  • Statistics
  • History
Country & language
  • Country
  • Language
Other filters
  • ADRV
  • Legal Terms
  • Sport/IFs
  • Other organisations
  • Laboratories
  • Analytical aspects
  • Doping classes
  • Substances
  • Medical terms
  • Various
  • Version
  • Document category
  • Document type
Publication period
Origin