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 (2009) 08, 357 - 365

Research article
Combined Strength and Endurance Training in Competitive Swimmers
Stian Aspenes1, , Per-Ludvik Kjendlie2, Jan Hoff1, Jan Helgerud1
Author Information
1 Norwegian University of Science and Technology, Trondheim
2 Norwegian School of Sport Sciences, Oslo, Norway

Stian Aspenes
‚úČ Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, MTFS, Olav Kyrresgate 9, N-7489 Trondheim, NORWAY
Email: stian.aspenes@ntnu.no
Publish Date
Received: 11-02-2009
Accepted: 27-05-2009
Published (online): 01-09-2009
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ABSTRACT

A combined intervention of strength and endurance training is common practice in elite swimming training, but the scientific evidence is scarce. The influences between strength and endurance training have been investigated in other sports but the findings are scattered. Some state the interventions are negative to each other, some state there is no negative relationship and some find bisected and supplementary benefits from the combination when training is applied appropriately. The aim of this study was to investigate the impact of a combined intervention among competitive swimmers. 20 subjects assigned to a training intervention group (n = 11) or a control group (n = 9) from two different teams completed the study. Anthropometrical data, tethered swimming force, land strength, performance in 50m, 100m and 400m, work economy, peak oxygen uptake, stroke length and stroke rate were investigated in all subjects at pre- and post-test. A combined intervention of maximal strength and high aerobic intensity interval endurance training 2 sessions per week over 11 weeks in addition to regular training were used, while the control group continued regular practice with their respective teams. The intervention group improved land strength, tethered swimming force and 400m freestyle performance more than the control group. The improvement of the 400m was correlated with the improvement of tethered swimming force in the female part of the intervention group. No change occurred in stroke length, stroke rate, performance in 50m or 100m, swimming economy or peak oxygen uptake during swimming. Two weekly dry-land strength training sessions for 11 weeks increase tethered swimming force in competitive swimmers. This increment further improves middle distance swimming performance. 2 weekly sessions of high- intensity interval training does not improve peak oxygen uptake compared with other competitive swimmers.

Key words: Oxygen consumption, muscle strength, metabolic efficiency


           Key Points
  • Two weekly sessions of dry land strength training improves the swimming force.
  • Two weekly sessions of high-intensity endurance training did not cause improved endurance capacity.
  • It may seem that dry land strength training can improve middle distance performance.
 
 
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