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 (2022) 21, 131 - 136   DOI: https://doi.org/10.52082/jssm.2022.131

Research article
Reliable Peak Power Assessment During Concentric and Flexion-Extension-Cycle Based Rowing Strokes using a Non-Modified Rowing Ergometer
Steffen Held , Ludwig Rappelt, Lars Donath
Author Information
Department of Intervention Research in Exercise Training, German Sport University, Cologne, Germany

Steffen Held
✉ Department of Intervention Research in Exercise Training, Institute of Exercise Training and Sport Informatics, German Sport University, 50933 Cologne, Germany.
Email: s.held@dshs-koeln.de
Publish Date
Received: 12-01-2022
Accepted: 01-02-2022
Published (online): 15-02-2022
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ABSTRACT

Accurate assessment of peak rowing power is crucial for rowing-specific performance testing. Therefore, within and between day reliability of a non-modified rowing ergometer was examined. 52 trained male rowers (21.0 ± 2.9 years; 1.89 ± 0.05 m; 83.2 ± 8.2 kg; 2,000-m ergometer Time Trial mean power: 369 ± 57 W) performed (two times 4) isolated concentric rowing strokes (DRIVE) and single flexion–extension cycle (FEC-type) rowing strokes (SLIDE-DRIVE) on two separate days (1 week apart). Good to excellent intraclass correlation coefficients (0.94 ≤ ICC ≤ 1.00), low standard error of measurement (≤ 2.7%), low coefficient of variation (≤ 4.9%), and suitable level of agreements (≤ 30W) for DRIVE and SLIDE-DRIVE indicated a high level of (within and between day) reliability. In addition, SLIDE-DRIVE (423 ± 157 W) revealed remarkably higher rowing power (p ≤ 0.001; ηp2 = 0.601; SMD = 0.34) compared to DRIVE (370 ± 154 W). The non-modified rowing ergometer is considered to be a reliable tool for the peak power assessment during isolated concentric contraction and FEC-type rowing strokes. Notably higher power outputs (compared to an isolated concentric contraction) during FEC rowing may refer to an underlying stretch shortening cycle.

Key words: Erg, oarsman, performance testing


           Key Points
  • The non-modified rowing ergometer (Concept 2/Type D, Morrisville, NC, United States) enable a feasible, low cost, and reliable peak power measurement during isolated concentric and combined eccentric and concentric (FEC) rowing strokes.
  • The resulting muscular performance is considered notably higher during a stretch shortening cycle (SSC) compared to an isolated concentric contraction.
  • These performance enhancement effects could be confirmed during FEC (compared to an isolated concentric contraction), which may refer to an underlying SSC.
 
 
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