Physiological Responses of Skilled Players During a Competitive Wheelchair Tennis Match

Department of Human Studies, School of Education, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
The Journal of Strength and Conditioning Research (Impact Factor: 2.08). 09/2006; 20(3):665-71. DOI: 10.1519/R-17845.1
Source: PubMed


The purpose of this study was to determine heart rate (HR, b.min(-1)) response during competitive match play of 6 men who were skilled wheelchair (WC) tennis players. Each participant completed an arm crank ergometer test that measured HR via a telemetry device and O2 via open circuit spirometry from rest until fatigue (.V(O2)peak). Each athlete participated in 2 competitive singles matches during which HRs were recorded in 5-second intervals and O2 was estimated using the corresponding HR values recorded during the arm ergometer tests. Data analysis revealed an average playing intensity of 69.4 +/- 8.9% of HRpeak and 49.9 +/-14.5% of .V(O2)peak. In conclusion, it is recommended that skilled adult WC tennis players perform off-court aerobic conditioning as part of their training program, because the intensity of a competitive WC tennis match is sufficiently high enough to stress the cardiovascular system.

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    • "Sports coaches and scientists who are interested in this sports specialty are continually trying to improve training methods and optimize drills to respond to the specific needs of the game (Roy et al., 2006). In the same way as with AB sports, studies are necessary to determine the requirements of the different tasks, and it is crucial to know their physiological demand to guarantee that training reflects the demands of the sport and the competition. "
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    ABSTRACT: The purpose of this study was to analyze the physiological response of wheelchair basketball (WB) players during the different bouts of a training task (4 vs. 4). Twelve WB players participated in this study (25.3 ± 2.4 years). Five sessions of the small-sided games (SSG) were performed, with 4 sets each session and a rest interval of 2 min between each one. Significant differences were found (p<0.05) in heart rate peak (HRpeak) in the last three bouts in comparison to the first (169.5 ± 12.47, 170.78 ± 12.80, 170.03 ± 11.78 vs. 167.19 ± 11.74 beat•min-1). Mean HR (HRmean) showed a similar trend, but there were also significant differences (p<0.05) between the second and third bouts (156.37 ± 12.04 vs. 158.21 ± 11.82 beat•min-1). Body temperature remained constant during the first three bouts and showed a significant increase (p<0.05) in the fourth bout. During the SSG, HRmean was similar to that obtained in other studies of official matches, so they could represent an adequate training task for improving WB performance. However, special attention should be paid to the number of bouts performed in the training sessions as the physiological response was not constant.
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    ABSTRACT: Wheelchair tennis players, competing in hot and humid environments, are faced with an increased risk of heat-related illness and impaired performance. This study examined the effects of head and neck cooling garments on perceptions of exertion (RPE), thermal sensation (TS), and water consumption during wheelchair exercise at 30.4 +/- 0.6 degrees C. Eight highly trained wheelchair tennis players (1 amputee and 7 spinal cord injured) completed two 60-min, intermittent sprint trials; once with cooling (COOL) and once without cooling (CON) in a balanced cross-over design. Players could drink water ad libitum at five predetermined intervals during each trial. Heart rate, blood lactate concentration, peak speed, TS, and RPE were recorded during the trials. Body mass and water consumption were measured before and after each trial. Water consumption was lower in COOL compared with CON (700 +/- 393 mL vs. 1198 +/- 675 mL respectively; P = 0.042). Trends in data suggested lower RPE and TS under COOL conditions (N.S.). Total sweat losses ranged from 200 to 1300 mL; this equated to approximately 1% dehydration after water consumption had been accounted for when averaged across all trials. The ad libitum drinking volumes matched and, in some cases, were greater than the total sweat losses. These results suggest that there is a counterproductive effect of head and neck cooling garments on water consumption. However, despite consuming volumes of water at least equivalent to total sweat loss, changes in body mass suggest an incidence of mild dehydration during wheelchair tennis in the heat.
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    ABSTRACT: The purpose of this study was to evaluate the ability of individuals with spinal cord injury (SCI) to reach a training threshold during on-court sport activity. Monitors collected heart rate (HR) data every 5 s for 11 wheelchair tennis players (WCT) with low paraplegia and 11 able-bodied controls matched on experience and skill level (ABT). Average HR was determined for time spent in practice (e.g, drills) and game (i.e., a competitive set), and the ability to surpass 50% peak HR (HRpeak) and 64% HRpeak in each condition was evaluated. Average exercise intensity (%HRpeak) was not significantly different between the groups during practice (M WCT = 68.18, SD = 7.53%, M ABT = 68.78, SD = 5.44%; t = .22, p = .83) or game (M WCT = 68.17, SD = .17%, M ABT = 71.55, SD = 4.75%; t = 1.12, p =.28). Allparticipants averaged an intensity > or = 50% HR-peak during practice and game, and the difference between group participants averaging an intensity > or = 64% HRpeak was not significant during practice (chi2 = .92, p = .34) or game (chi2 = 3.85, p = .05). In terms of reaching a health and fitness training threshold during tennis, individuals with low-level SCI are similar to matched controls.
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