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Related Concept Videos

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Related Experiment Video

Updated: Aug 5, 2025

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
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Improving rowing performance by adjusting oar blade size and angle.

W C A M van Nieuwburg1, B J J van Spreuwel1, M T K Tran1

  • 1Laboratory for Aero & Hydrodynamics, Delft University of Technology, Delft, Netherlands.

Frontiers in Sports and Active Living
|March 27, 2023
PubMed
Summary
This summary is machine-generated.

A forward-tilted rowing blade design enhances rowing efficiency and boat speed. This study validated optimal blade angles, showing a 0.4% speed increase with modified blades at equal power input.

Keywords:
efficiencyoptimisationperformancerobotrowing blade

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Area of Science:

  • Fluid Dynamics
  • Sports Engineering
  • Biomechanics

Background:

  • Rowing performance is influenced by blade hydrodynamics.
  • Previous research identified an optimal blade angle of 15 degrees.
  • Optimizing blade design can lead to significant improvements in rowing efficiency.

Purpose of the Study:

  • To investigate the effect of a forward-tilted rowing blade on water motion efficiency.
  • To demonstrate that modified blades increase boat speed at equal input power.
  • To validate previous findings on optimal rowing blade angles.

Main Methods:

  • A 1:5 scaled rowing boat model was used for performance testing.
  • Rowing blades with varying sizes and angles were analyzed.
  • Towing tank experiments were conducted to measure boat speed and input power.

Main Results:

  • Modified rowing blades resulted in a 0.4% increase in boat speed at the same input power.
  • The optimal blade angle was confirmed to be 15 degrees relative to the oar shaft.
  • A 4-6% increase in blade area compensated for efficiency improvements to maintain input power.

Conclusions:

  • Forward-tilted rowing blade design enhances hydrodynamic efficiency.
  • Optimized blade angles and increased blade area contribute to improved rowing performance.
  • This research validates and refines previous findings on rowing blade optimization for increased boat speed.