Rowing Biomechanics: The Catch and Applying Power
Listen to the conversation: #112 The Biomechanics of Rowing - Dr Valery Kleshnev
#120 Rigging and the Impact on Technique - Dr Valery Kleshnev
Rowing biomechanics considers how the athlete, oars and boat interact. Looking only at what the hull appears to do can miss an important part of the movement.
Dr Valery Kleshnev makes this distinction central to our conversation. His account challenges some familiar assumptions about boat check and where force is most effective during the drive. The explanations below describe his analysis; applying them requires observation and coaching, not simply a new slogan.
Look at the whole system
The rower moves relative to the boat throughout the stroke. The hull's changing velocity is therefore only one part of the picture.
Valery distinguishes the movement of the shell within the stroke from the progress of the whole rowing system. He argues that coaching should pay greater attention to the rower's movement and how force is transmitted through the stretcher and oar.
This does not make the boat irrelevant. It changes the question from “Did the hull slow at this instant?” to “What movement produces effective progress over the complete stroke?”
Understand what the blade is doing
Valery describes the blade's interaction with the water as changing throughout the arc. In his explanation, hydrodynamic lift contributes during the early part of the drive, while the perpendicular position is not automatically the point of greatest blade efficiency.
He uses this to support developing force promptly after connection at the catch. The practical message is about making useful force available early, rather than assuming that the strongest-looking middle of the stroke must be the most effective place to concentrate everything.
Listen to Valery explain the blade mechanics. This is a subject where the questions and clarifications in the conversation are especially valuable.
Be careful with the instruction “avoid check”
Valery argues that a brief reduction in hull velocity around the catch should not be judged in isolation. In his account, the way the rower changes direction and connects can make that movement part of an effective stroke.
That is not a general instruction to crash into the front or deliberately make the boat feel abrupt. A phrase detached from its explanation can create the opposite of the intended movement.
Work with a coach to examine the relationship between seat movement, handle movement and connection. Judge any change by its repeatable effect on the rowing, not by whether one instant looks smoother.
Connect technique with the rig
The positions available to the rower influence the stroke they can produce. In the rigging conversation, Valery discusses how inboard, span and other settings affect geometry, while loading and rate also interact.
If an athlete struggles to create a useful movement, ask whether the setup helps or obstructs it. Equally, a rigging change cannot be assumed to solve a technical problem without checking what the rower actually does afterwards.
Turn an explanation into a test
Choose one question and one observable change. Record the starting setup and conditions. Give the athlete time to understand the task, then compare suitable pieces.
Video, timing and other measurements can help, but avoid drawing a large conclusion from one outing.
The value of the biomechanics conversation is that it provides questions worth testing. It encourages rowers and coaches to look beyond a single visual impression and ask how the parts of the stroke work together.
