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Full-Text Articles in Physiology
Measuring Activity Energy Expenditure: Accuracy Of The Gt3x+ And Actiheart Monitors, David Mcminn, Rijan Acharya, David A. Rowe, Stuart R. Gray, Julia L. Allan
Measuring Activity Energy Expenditure: Accuracy Of The Gt3x+ And Actiheart Monitors, David Mcminn, Rijan Acharya, David A. Rowe, Stuart R. Gray, Julia L. Allan
International Journal of Exercise Science
International Journal of Exercise Science 6(3) : 217-229, 2013. The purpose was to determine the accuracy of the GT3X+ and Actiheart monitors for estimating energy expenditure (EE) and steps. Additionally, to investigate agreement between waist- and wrist-mounted GT3X+ EE outputs. Nineteen participants (mean age=30) completed three treadmill walking trials at self-selected slow, medium, and fast speeds while wearing two GT3X+ (waist and wrist) and an Actiheart. Activity monitor EE was compared to indirect calorimetry criterion EE using Pearson correlations and ANOVAs. A Bland-Altman plot was used to investigate agreement between GT3X+ waist- and wrist-determined EE. GT3X+ determined steps were compared …
The Validity Of 7-Site Skinfold Measurements Taken By Exercise Science Students, Tiago V. Barreira, Matthew S. Renfrow, Wayland Tseh, Minsoo Kang
The Validity Of 7-Site Skinfold Measurements Taken By Exercise Science Students, Tiago V. Barreira, Matthew S. Renfrow, Wayland Tseh, Minsoo Kang
International Journal of Exercise Science
International Journal of Exercise Science 6(1) : 20-28, 2013. Skinfold (SKF) measurement is arguably the most ubiquitous method of estimating percent body fat (%BF) because of cost, ease, and feasibility. However, it is unknown how accurately novice exercise science students measure SKF thickness. Thus, the purpose of this study was to determine the validity with which exercise science students in an Exercise Physiology course measured skinfold thickness and estimated percent body fat (%BF) when compared to a skilled technician. Twenty-three novice undergraduate students were afforded both verbal measurement instruction and visual measurement demonstration and, subsequently, assessed SKF thicknesses of a …