Physiological responses of skilled players during a competitive wheelchair tennis match.
ABSTRACT 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.
- SourceAvailable from: Yanci Javier[Show abstract] [Hide abstract]
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.International Journal of Performance Analysis in Sport 07/2014; In press. · 0.85 Impact Factor
- [Show abstract] [Hide abstract]
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.Research quarterly for exercise and sport 03/2009; 80(1):71-7. DOI:10.1080/02701367.2009.10599531 · 1.26 Impact Factor
- [Show abstract] [Hide abstract]
ABSTRACT: The objectives of this descriptive study were (a) to determine the energy expenditure of activities commonly performed by individuals with a spinal cord injury (SCI) and summarize this information and (b) to measure resting energy expenditure and establish the value of 1 MET for individuals with SCI. One-hundred seventy adults with SCI were partitioned by gender, anatomical level of SCI, and American Spinal Injury Association designations for motor function. Twenty-seven physical activities, 12 recreational/sport and 15 daily living, were performed, while energy expenditure was measured continuously via a COSMED K4b portable metabolic system. In addition, 66 adult males with SCI completed 30 min of supine resting energy testing in a quiet environment. Results for the 27 measured activities are reported in kilocalories per minute (kcal·min(-1)) and VO2 (mL·min(-1) and mL·kg(-1)·min(-1)). One MET for a person with SCI should be adjusted using 2.7 mL·kg(-1)·min(-1). Using 2.7 mL·kg(-1)·min(-1), the MET range for persons in the motor incomplete SCI group was 1.17 (supported standing) to 6.22 (wheeling on grass), and 2.26 (billiards) to 16.25 (hand cycling) for activities of daily living and fitness/recreation, respectively. The MET range for activities of daily living for persons in the group with motor complete SCI was 1.27 (dusting) to 4.96 (wheeling on grass) and 1.47 (bait casting) to 7.74 (basketball game) for fitness/recreation. The foundation for a compendium of energy expenditure for physical activities for persons with SCI has been created with the completion of this study. In the future, others will update and expand the content of this compendium as has been the case with the original compendium for the able-bodied.Medicine and science in sports and exercise 11/2009; 42(4):691-700. DOI:10.1249/MSS.0b013e3181bb902f · 4.46 Impact Factor