Effects of non-oarside-arm pull on the forces at the handle and foot-stretcher in sweep-rowing

Authors

  • Klaus Mattes University of Hamburg Faculty of Psychology and Human Movement Science Institute of Human Movement Science Dept. Movement and Training Science
  • Stefanie Manzer University of Hamburg Faculty of Psychology and Human Movement Science Institute of Human Movement Science Dept. Movement and Training Science
  • Nina Schaffert University of Hamburg Faculty of Psychology and Human Movement Science Institute of Human Movement Science Dept. Movement and Training Science
  • Martin Reischmann University of Hamburg Faculty of Psychology and Human Movement Science Institute of Human Movement Science Dept. Movement and Training Science
  • Wolfgang Böhmert Institute for Research and Development of Sports Equipment (FES) Berlin Tabbertstraße 8, 12459 Berlin, Germany,

DOI:

https://doi.org/10.12922/jshp.v4i1.79

Keywords:

biomechanics, technique optimisation, rowing technique, sweep-rowing, propulsive efficiency

Abstract

In sweep-rowing the rotational movement of the oar-handle around the swivel is executed by the arm and shoulder and results in an asymmetry between the body sides. The non-oarside-hand (-arm, -shoulder and -leg) pulls with a longer lever and more tangentially at the handle than the oarside-arm. Aim of the study was to examine the non-oarside-arm-force and its effect on the longitudinal, normal force at the oar-handle, and on the stretcher-force of the non-oarside- and oarside-leg.

Twenty-six male elite rowers of the German Rowing Federation participated in coxless-fours. Normal, longitudinal, non-oarside-arm force on the oar-handle, and stretcher-force of the oarside- and non-oarside-leg were measured with a mobile measuring system. Normal two-handed rowing (Baseline), one-handed oarside-arm, non-oarside-arm, and dominant two-handed non-oarside-arm pull were compared using an analysis of variance.

The results showed that the non-oarside-arm pull produced higher propulsion compared to the oarside-arm because the torque on the oar is greater and the stretcher-force reduced with lower differences between the oarside- and non-oarside-leg. Main reason is the longer lever and in addition the more tangential pull direction at the handle of the oarside-arm. A dominant non-oarside-arm pull should be practiced for increased performance and reduced leg asymmetry, but increases trunk asymmetry.

Downloads

Published

2016-04-11

How to Cite

Mattes, K., Manzer, S., Schaffert, N., Reischmann, M., & Böhmert, W. (2016). Effects of non-oarside-arm pull on the forces at the handle and foot-stretcher in sweep-rowing. Journal of Sport and Human Performance, 4(1). https://doi.org/10.12922/jshp.v4i1.79

Issue

Vol. 4 No. 1 (2016): Journal of Sport and Human Performance

Section

Original Research Articles

License

Authors who publish with this journal agree to the following terms:

    1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
    2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
    3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).