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Elsevier, Procedia Engineering, (112), p. 461-466, 2015

DOI: 10.1016/j.proeng.2015.07.225

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Rowing on a Boat Versus Rowing on an Ergo-meter: A Biomechanical and Electromyographycal Preliminary Study

Journal article published in 2015 by Giuseppe Marcolin ORCID, Alberto Lentola, Antonio Paoli, Nicola Petrone
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The present preliminary study aimed to report differences between rowing on a boat and rowing on ergo-meter considering not only kinetics and kinematics but also electromyography for a wider understanding of the motor control patterns. Right elbow and knee kinematics of a 23 years old elite rower was recorded by means of two electrical goniometers. Resultant handle force was calculated respectively from strain gauges applied on the right oar and with an uni-axial load cell fixed on the ergo-meter bar. Eight muscles were considered, referred to right arm, right leg and trunk. The athlete was asked to perform 2 minutes rowing on-water at 20 strokes per minute (spm) and 2 minutes at 32 spm. Then he performed the same protocol on the rower ergo-meter. Maximal voluntary contractions were recorded for EMG data normalization. Kinematics showed an increase in the elbow peak flexion (+20.3% at 20 spm and +16.6% at 32 spm) and a decrease in the knee peak flexion (-4.5% at 20 spm and -2.8% at 32 spm) rowing on the ergo-meter. Peak force recorded at the right hand was higher in the ergo-meter both at 20 spm (+43.5%) and at 32 spm (+29.8%). Muscle activity was higher in the ergo-meter considering biceps brachii, deltoideus medialis, trapezius trasversalis and vastus medialis. Cross-plots of elbow flexion versus muscle activity and versus hand force showed different coordinative patterns comparing the two experimental conditions. Results of this preliminary study indicated the ergo-meter as a valid training device considering the force at the hand. However, it showed different coordinative patterns with respect to rowing on the water in such a way that it should be carefully employed close to competitions.