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Tennis Play Intensity Distribution and Relation with Aerobic Fitness in Competitive Players.

Baiget E, Fernández-Fernández J, Iglesias X, Rodríguez FA - PLoS ONE (2015)

Bottom Line: Moderate to high positive correlations were found between VT1, VT2 and VO2max, and the percentage of playing time spent in zone 1 (r = 0.68-0.75), as well as low to high inverse correlations between the metabolic variables and the percentage of time spent in zone 2 and 3 (r = -0.49-0.75).Players with better aerobic fitness play at relatively lower intensities.We conclude that players spent more than 75% of the time in their low-intensity zone, with less than 25% of the time spent at moderate to high intensities.

View Article: PubMed Central - PubMed

Affiliation: Sport Performance Analysis Research Group, University of Vic, Barcelona, Spain.

ABSTRACT
The aims of this study were (i) to describe the relative intensity of simulated tennis play based on the cumulative time spent in three metabolic intensity zones, and (ii) to determine the relationships between this play intensity distribution and the aerobic fitness of a group of competitive players. 20 male players of advanced to elite level (ITN) performed an incremental on-court specific endurance tennis test to exhaustion to determine maximal oxygen uptake (VO2max) and the first and second ventilatory thresholds (VT1, VT2). Ventilatory and gas exchange parameters were monitored using a telemetric portable gas analyser (K4 b2, Cosmed, Rome, Italy). Two weeks later the participants played a simulated tennis set against an opponent of similar level. Intensity zones (1: low, 2: moderate, and 3: high) were delimited by the individual VO2 values corresponding to VT1 and VT2, and expressed as percentage of maximum VO2 and heart rate. When expressed relative to VO2max, percentage of playing time in zone 1 (77 ± 25%) was significantly higher (p < 0.001) than in zone 2 (20 ± 21%) and zone 3 (3 ± 5%). Moderate to high positive correlations were found between VT1, VT2 and VO2max, and the percentage of playing time spent in zone 1 (r = 0.68-0.75), as well as low to high inverse correlations between the metabolic variables and the percentage of time spent in zone 2 and 3 (r = -0.49-0.75). Players with better aerobic fitness play at relatively lower intensities. We conclude that players spent more than 75% of the time in their low-intensity zone, with less than 25% of the time spent at moderate to high intensities. Aerobic fitness appears to determine the metabolic intensity that players can sustain throughout the game.

No MeSH data available.


Related in: MedlinePlus

Heart rate (A) and oxygen uptake (B) intensity profiles during one set.Data from a representative subject expressed as percentage of maximum (%HRmax and %O2max, respectively). Three intensity zones are delimited by the first and second ventilatory thresholds, expressed as (A) heart rate (HRVT1, HRVT2), and (B) O2 (VT1, VT2) are illustrated (light to dark grey background). The dashed vertical lines represent the 6 rest periods corresponding to game end changes.
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pone.0131304.g002: Heart rate (A) and oxygen uptake (B) intensity profiles during one set.Data from a representative subject expressed as percentage of maximum (%HRmax and %O2max, respectively). Three intensity zones are delimited by the first and second ventilatory thresholds, expressed as (A) heart rate (HRVT1, HRVT2), and (B) O2 (VT1, VT2) are illustrated (light to dark grey background). The dashed vertical lines represent the 6 rest periods corresponding to game end changes.

Mentions: The 20 sets played resulted in a total of 170 games for statistical analyses. The mean duration of the sets was 31:03 ± 11:23 min:s. 56% of the games and 70% of sets played were won by the player who was not carrying the gas analyser. Fig 2 shows an example of O2 and HR kinetics from a representative player during a set with a final score of 7/5.


Tennis Play Intensity Distribution and Relation with Aerobic Fitness in Competitive Players.

Baiget E, Fernández-Fernández J, Iglesias X, Rodríguez FA - PLoS ONE (2015)

Heart rate (A) and oxygen uptake (B) intensity profiles during one set.Data from a representative subject expressed as percentage of maximum (%HRmax and %O2max, respectively). Three intensity zones are delimited by the first and second ventilatory thresholds, expressed as (A) heart rate (HRVT1, HRVT2), and (B) O2 (VT1, VT2) are illustrated (light to dark grey background). The dashed vertical lines represent the 6 rest periods corresponding to game end changes.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4476777&req=5

pone.0131304.g002: Heart rate (A) and oxygen uptake (B) intensity profiles during one set.Data from a representative subject expressed as percentage of maximum (%HRmax and %O2max, respectively). Three intensity zones are delimited by the first and second ventilatory thresholds, expressed as (A) heart rate (HRVT1, HRVT2), and (B) O2 (VT1, VT2) are illustrated (light to dark grey background). The dashed vertical lines represent the 6 rest periods corresponding to game end changes.
Mentions: The 20 sets played resulted in a total of 170 games for statistical analyses. The mean duration of the sets was 31:03 ± 11:23 min:s. 56% of the games and 70% of sets played were won by the player who was not carrying the gas analyser. Fig 2 shows an example of O2 and HR kinetics from a representative player during a set with a final score of 7/5.

Bottom Line: Moderate to high positive correlations were found between VT1, VT2 and VO2max, and the percentage of playing time spent in zone 1 (r = 0.68-0.75), as well as low to high inverse correlations between the metabolic variables and the percentage of time spent in zone 2 and 3 (r = -0.49-0.75).Players with better aerobic fitness play at relatively lower intensities.We conclude that players spent more than 75% of the time in their low-intensity zone, with less than 25% of the time spent at moderate to high intensities.

View Article: PubMed Central - PubMed

Affiliation: Sport Performance Analysis Research Group, University of Vic, Barcelona, Spain.

ABSTRACT
The aims of this study were (i) to describe the relative intensity of simulated tennis play based on the cumulative time spent in three metabolic intensity zones, and (ii) to determine the relationships between this play intensity distribution and the aerobic fitness of a group of competitive players. 20 male players of advanced to elite level (ITN) performed an incremental on-court specific endurance tennis test to exhaustion to determine maximal oxygen uptake (VO2max) and the first and second ventilatory thresholds (VT1, VT2). Ventilatory and gas exchange parameters were monitored using a telemetric portable gas analyser (K4 b2, Cosmed, Rome, Italy). Two weeks later the participants played a simulated tennis set against an opponent of similar level. Intensity zones (1: low, 2: moderate, and 3: high) were delimited by the individual VO2 values corresponding to VT1 and VT2, and expressed as percentage of maximum VO2 and heart rate. When expressed relative to VO2max, percentage of playing time in zone 1 (77 ± 25%) was significantly higher (p < 0.001) than in zone 2 (20 ± 21%) and zone 3 (3 ± 5%). Moderate to high positive correlations were found between VT1, VT2 and VO2max, and the percentage of playing time spent in zone 1 (r = 0.68-0.75), as well as low to high inverse correlations between the metabolic variables and the percentage of time spent in zone 2 and 3 (r = -0.49-0.75). Players with better aerobic fitness play at relatively lower intensities. We conclude that players spent more than 75% of the time in their low-intensity zone, with less than 25% of the time spent at moderate to high intensities. Aerobic fitness appears to determine the metabolic intensity that players can sustain throughout the game.

No MeSH data available.


Related in: MedlinePlus