Effects of a sensory strategy in an isometric muscular endurance task

  • M. Bigliassi GEPESINE - Group of Study and Research in Neuromuscular System and Exercise -, CEFE. State University of Londrina .Paraná. Brazil.
  • A. Stortti Peruzollo Superior School of Physical Education. Federal University of Rio Grande do Sul. Porto Alegre. Rio Grande do Sul. Brazil.
  • T. Ferreira Dias Kanthack GEPESINE - Group of Study and Research in Neuromuscular System and Exercise -, CEFE. State University of Londrina .Paraná. Brazil.
  • V. Barreto da Silva GEPESINE - Group of Study and Research in Neuromuscular System and Exercise -, CEFE. State University of Londrina .Paraná. Brazil.
  • P. Pezarat-Correia Faculty of Motor Human Kinetics. Technical University of Lisbon. Lisbon. Portugal.
  • L. R. Atimari GEPESINE - Group of Study and Research in Neuromuscular System and Exercise -, CEFE. State University of Londrina .Paraná. Brazil.
Keywords: Modulación sensorial, Música, Actividad motora Sensory feedback, Music, Motor activity Modulação sensorial, Música, Atividade motora

Abstract

 

Objective. The use of music and video in exercise domain might act in parallel over other physiological signals and its central interpretation may change the rate of perceived exertion and subsequently the final performance.

The purpose of this study was to examine the effects of sensorial modulation in an isometric muscular endurance task.

Method. Ten volunteers have performed three tests, in which they had to keep the dominant arm abduction until exhaustion whilst the following variables: total time, rate of perceived exertion (RPE),median frequency (MF) and root mean square (RMS) were monitored. Each subject has performed a control (CO), deprivation (DP) and stimuli (SC) condition. Analysis of variance (ANOVA) one-way was applied followed by post-hoc Scheffé test. The smallest worthwhile change was used to provide a qualitative analysis of performance.

Results. No significant differences were found in muscular activity between conditions and performance (p > 0.05). The slope of RPE was significant higher to DP compared to SC (4.3 + 0.77 a.u. vs 3.53 + 0.46 a.u., p < 0.05; respectively). Furthermore, a higher probability of improvement for time to exhaustion was found to SC compared to DP (97 %) and CO (92 %), conversely the opposite outcome was demonstrated to DP compared to CO (59 %).

Conclusion. It was concluded that a sensory strategy was capable to modulate RPE and performance.

 
 
Published
2018-04-30
Issue
Vol. 7 No. 2 (2014): June 2014
Section
Originals
Page/s
55-59