title: Relationships between heart rate and physiological parameters of performance in top-level water polo players.
abstract: The aim of this study was to measure the heart rate (HR) response of eight elite water polo players during the four 7-min quarters of the game and to check for relationships with the physiological parameters of performance ([Formula: see text]O2max, Th1vent, Th2vent). Each athlete performed a [Formula: see text]O2max treadmill test and played a water polo game wearing a heart rate monitor. The game fatigue index was calculated as the ratio of the fourth-quarter HR to the first-quarter HR: HR4/HR1. The results showed a slight decrease in fourth-quarter HR compared with the first quarter, with the mean four-quarter HR equal to 79.9±4.2% of HRmax. Stepwise multiple regression analysis showed [Formula: see text]O2max to be the main explanatory factor of game intensity, i.e. game HR expressed in %HRreserve (R=0.88, P<0.01). We observed that higher aerobic capacity resulted in higher game intensity. We also observed a decrease in the playing intensity in the fourth quarter compared with the first, likely due to very high game involvement. We concluded that high aerobic capacity seems necessary to ensure high game intensity in water polo. This suggests that coaches should encourage their athletes to reach a minimum level of [Formula: see text]O2max and that HR monitoring could be of great interest in the control of water polo training sessions.
authors.affiliation: Laboratoire ACTES EA 3596, UFR-STAPS, Antilles-Guyane, Pointe à Pitre, France ; Laboratoire CNEP EA 4242 University of New Caledonia, New Caledonia.
authors.forename: O
authors.initials: O
authors.lastname: Galy
authors.affiliation: Research Laboratory "Sport Performance Optimization", National Centre of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia.
authors.forename: S
authors.initials: S
authors.lastname: Ben Zoubir
authors.affiliation: Research Laboratory "Sport Performance Optimization", National Centre of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia.
authors.forename: M
authors.initials: M
authors.lastname: Hambli
authors.affiliation: Research Laboratory "Sport Performance Optimization", National Centre of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia.
authors.forename: A
authors.initials: A
authors.lastname: Chaouachi
authors.affiliation: Laboratoire ACTES EA 3596, UFR-STAPS, Antilles-Guyane, Pointe à Pitre, France.
authors.forename: O
authors.initials: O
authors.lastname: Hue
authors.affiliation: Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
authors.forename: K
authors.initials: K
authors.lastname: Chamari
keywords: VO2max; aerobic capacity; heart rate; ventilatory threshold; water polo