학술논문
An Investigation of Surface EMG Shorts-Derived Training Load during Treadmill Running
Document Type
Academic Journal
Author
Source
Sensors. August 2023, Vol. 23 Issue 15
Subject
Language
English
ISSN
1424-8220
Abstract
Author(s): Kurtis Ashcroft (corresponding author) [1,2,*]; Tony Robinson [1]; Joan Condell [1]; Victoria Penpraze [2]; Andrew White [2]; Stephen P. Bird [3] 1. Introduction Monitoring of the training load (TL) [...]
The purpose of this study was two-fold: (1) to determine the sensitivity of the sEMG shorts-derived training load (sEMG-TL) during different running speeds; and (2) to investigate the relationship between the oxygen consumption, heart rate (HR), rating of perceived exertion (RPE), accelerometry-based PlayerLoad[sup.TM] (PL), and sEMG-TL during a running maximum oxygen uptake (V˙O[sub.2max]) test. The study investigated ten healthy participants. On day one, participants performed a three-speed treadmill test at 8, 10, and 12 km·h[sup.−1] for 2 min at each speed. On day two, participants performed a V˙O[sub.2max] test. Analysis of variance found significant differences in sEMG-TL at all three speeds (p < 0.05). A significantly weak positive relationship between sEMG-TL and %V˙O[sub.2max] (r = 0.31, p < 0.05) was established, while significantly strong relationships for 8 out of 10 participants at the individual level (r = 0.72–0.97, p < 0.05) were found. Meanwhile, the accelerometry PL was not significantly related to %V˙O[sub.2max] (p > 0.05) and only demonstrated significant correlations in 3 out of 10 participants at the individual level. Therefore, the sEMG shorts-derived training load was sensitive in detecting a work rate difference of at least 2 km·h[sup.−1]. sEMG-TL may be an acceptable metric for the measurement of internal loads and could potentially be used as a surrogate for oxygen consumption.
The purpose of this study was two-fold: (1) to determine the sensitivity of the sEMG shorts-derived training load (sEMG-TL) during different running speeds; and (2) to investigate the relationship between the oxygen consumption, heart rate (HR), rating of perceived exertion (RPE), accelerometry-based PlayerLoad[sup.TM] (PL), and sEMG-TL during a running maximum oxygen uptake (V˙O[sub.2max]) test. The study investigated ten healthy participants. On day one, participants performed a three-speed treadmill test at 8, 10, and 12 km·h[sup.−1] for 2 min at each speed. On day two, participants performed a V˙O[sub.2max] test. Analysis of variance found significant differences in sEMG-TL at all three speeds (p < 0.05). A significantly weak positive relationship between sEMG-TL and %V˙O[sub.2max] (r = 0.31, p < 0.05) was established, while significantly strong relationships for 8 out of 10 participants at the individual level (r = 0.72–0.97, p < 0.05) were found. Meanwhile, the accelerometry PL was not significantly related to %V˙O[sub.2max] (p > 0.05) and only demonstrated significant correlations in 3 out of 10 participants at the individual level. Therefore, the sEMG shorts-derived training load was sensitive in detecting a work rate difference of at least 2 km·h[sup.−1]. sEMG-TL may be an acceptable metric for the measurement of internal loads and could potentially be used as a surrogate for oxygen consumption.