Muscle activation and heart rate responses to a side-step interval exercise
| Autor: | Avery P. Sullivan, Jonathan C. Bravo, Robert S. Thiebaud, Nicolas Giovannitti, Takashi Abe |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Male Periodicity medicine.medical_specialty Time Factors Adolescent Physiology Vastus lateralis muscle Vastus medialis Health Status Electromyography High-Intensity Interval Training Quadriceps Muscle Young Adult 03 medical and health sciences 0302 clinical medicine Heart Rate Isometric Contraction Physiology (medical) Internal medicine Heart rate medicine Humans Exercise physiology Exercise Cross-Over Studies medicine.diagnostic_test business.industry Cardiorespiratory fitness 030229 sport sciences General Medicine Cardiorespiratory Fitness Exercise intensity Cardiology Female business human activities High-intensity interval training 030217 neurology & neurosurgery |
| Zdroj: | Clinical Physiology and Functional Imaging. 38:285-290 |
| ISSN: | 1475-0961 |
| DOI: | 10.1111/cpf.12413 |
| Popis: | BACKGROUND The side-step test is commonly used to assess agility. Side-step interval exercise may also be a potential way to improve cardiorespiratory and muscular fitness. However, the acute heart rate and muscle activation response to this type of exercise is not well established. In addition, different tempos can influence these responses. The purpose of this study was to determine the acute heart rate and muscle activation responses of a side-step interval exercise to different exercise tempos. METHODS Ten participants completed a V˙O2 max test and performed a side-step interval exercise for 4 × 1 min intervals separated by 1-min rest intervals at a slow (84 bpm) and fast (112 bpm) tempo. Muscle activation of the vastus lateralis and vastus medialis and heart rate were measured during exercise. RESULTS During the slow tempo, vastus lateralis muscle activation varied from 45% to 48% of maximum muscle activation (EMGmax ) while vastus medialis muscle activation varied from 51% to 54% EMGmax . During the fast tempo, vastus lateralis muscle activation varied from 53% to 65% EMGmax while vastus medialis muscle activation varied from 64% to 76% EMGmax . Heart rates varied from 80-84% HRmax from set 1 to set 4 for the fast tempo and varied from 67% to 72% HRmax from set 1 to set 4 for the slow speeds. CONCLUSION Exercise intensity of a side-step interval exercise reached adequate levels to suggest that it may be possible to use this type of exercise to improve cardiorespiratory and muscular fitness. |
| Databáze: | OpenAIRE |
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