Strength Training Prior to Endurance Exercise: Impact on the Neuromuscular System, Endurance Performance and Cardiorespiratory Responses

• Authors: Matheus Conceição , Eduardo Lusa Cadore , Miriam González-Izal , Mikel Izquierdo , Giane Veiga Liedtke , Eurico Nestor Wilhelm , Ronei Silveira Pinto , Fernanda Reistenbach Goltz , Cláudia Dornelles Schneider , Rodrigo Ferrari , Martim Bottaro , Luiz Fernando Martins Kruel
• Languages of publication: EN

Abstracts

EN

This study aimed to investigate the acute effects of two strength-training protocols on the neuromuscular and cardiorespiratory responses during endurance exercise. Thirteen young males (23.2 ± 1.6 years old) participated in this study. The hypertrophic strength-training protocol was composed of 6 sets of 8 squats at 75% of maximal dynamic strength. The plyometric strength-training protocol was composed of 6 sets of 8 jumps performed with the body weight as the workload. Endurance exercise was performed on a cycle ergometer at a power corresponding to the second ventilatory threshold until exhaustion. Before and after each protocol, a maximal voluntary contraction was performed, and the rate of force development and electromyographic parameters were assessed. After the hypertrophic strengthtraining and plyometric strength-training protocol, significant decreases were observed in the maximal voluntary contraction and rate of force development, whereas no changes were observed in the electromyographic parameters. Oxygen uptake and a heart rate during endurance exercise were not significantly different among the protocols. However, the time-to-exhaustion was significantly higher during endurance exercise alone than when performed after hypertrophic strength-training or plyometric strength-training (p <0.05). These results suggest that endurance performance may be impaired when preceded by strength-training, with no oxygen uptake or heart rate changes during the exercise.

Keywords

EN

surface EMG; fatigue; concurrent training; aerobic exercise; maximal strength

• Publisher: De Gruyter Open
• Journal: Journal of Human Kinetics
• Year: 2014
• Volume: 44
• Issue: 1
• Pages: 171-181

Dates

published

1 - 12 - 2014

accepted

1 - 12 - 2014

online

30 - 12 - 2014

Contributors

author

Matheus Conceição

• Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil

author

Eduardo Lusa Cadore

• Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
• Department of Health Sciences, Public University of Navarre, Spain
• Faculty of Physical Education, University of Brasília

author

Miriam González-Izal

• Department of Health Sciences, Public University of Navarre, Spain

author

Mikel Izquierdo

• Department of Health Sciences, Public University of Navarre, Spain

author

Giane Veiga Liedtke

• Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil

author

Eurico Nestor Wilhelm

• Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
• Sports Sciences, Brunel University of West London

author

Ronei Silveira Pinto

• Faculty of Physical Education, University of Brasília

author

Fernanda Reistenbach Goltz

• Department of Nutrition, Federal University of Health Sciences of Porto Alegre, Brazil

author

Cláudia Dornelles Schneider

• Department of Nutrition, Federal University of Health Sciences of Porto Alegre, Brazil

author

Rodrigo Ferrari

• Department of Nutrition, Federal University of Health Sciences of Porto Alegre, Brazil
• Exercise Pathophysiology Research Laboratory, Clinical Hospital of Porto Alegre, RS, Brazil

author

Martim Bottaro

• Faculty of Physical Education, University of Brasília

author

Luiz Fernando Martins Kruel

• Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil

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Identifiers

DOI

10.2478/hukin-2014-0123