Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2006) 05, 115 - 122

Research article
Recovery of Power Output and Heart Rate Kinetics During Repeated Bouts of Rowing Exercise with Different Rest Intervals
Evangelia Mavrommataki1, Gregory C. Bogdanis1, , Socrates Kaloupsis2, Maria Maridaki1
Author Information
1 Departement of Sports Medicine & Biology of Physical Activity,
2 Department of Aquatic Sports, Faculty of Physical Education and Sports Science, University of Athens, Greece

Gregory C. Bogdanis
✉ Faculty of Physical Education and Sports Science, 41 Ethnikis Antistasis Street, Dafni, 172 37, Athens, Greece
Email: gbogdanis@phed.uoa.gr
Publish Date
Received: 12-10-2005
Accepted: 02-02-2006
Published (online): 01-03-2006
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ABSTRACT

This study examined the effect of recovery time on the maintenance of power output and the heart rate response during repeated maximal rowing exercise. Nine male, junior rowers (age: 16 ± 1 years; body mass: 74.0 ± 9.1 kg; height: 1.78 ± 0.03 m) performed two consecutive all-out 1000 m bouts on a rowing ergometer on three separate occasions. The rest interval between the two bouts was 1.5 (INT1.5), 3 (INT3) and 6 min (INT6), allocated in random order. Power output was averaged for each 1000 m bout and for the first and last 500 m of each bout. Heart rate kinetics were determined using a two-component exponential model. Performance time and mean power output for the first bout was 209 ± 3 s and 313 ± 10 W respectively. Recovery of mean power output was incomplete even after 6 min (78 ± 2, 81 ± 2 and 84 ± 2 % for INT1.5, INT3 and INT6 respectively). Mean power output after INT6 was higher (p < 0.01) only compared with INT1.5. Power output during the first 500 m of bout 2 after INT6 was 10% higher compared with the second 500 m. During INT1.5 and INT3 power output during the first and the second 500 m of bout 2 was similar. Peak heart rate (~197 b·min-1) and the HR time constant (~13 s) were unaffected by prior exercise and recovery time. However, when the recovery was short (INT1.5), HR during the first 50 s of bout 2 was significantly higher compared with corresponding values during bout 1. The present study has shown that in order to maintain similar power outputs during repeated maximal rowing exercise, the recovery interval must be greater than 6 min. The influence of a longer recovery time (INT6) on maintenance of power output was only evident during the first half of the second 1000 m bout.

Key words: Interval training, maintenance of power output


           Key Points
  • The recovery of mean power output during two repeated maximal 1000 m bouts of rowing exercise was incomplete even after a 6 min rest interval.
  • The benefit of the longer rest interval was apparent only during the first 500 m of bout 2.
  • The HR time constant was unaffected by prior exercise and the time of recovery. However, when the recovery was short, HR during the first 50 s of bout 2 was significantly higher compared with the corresponding values of bout 1.
 
 
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