Version 1
: Received: 8 November 2023 / Approved: 8 November 2023 / Online: 8 November 2023 (15:41:20 CET)
How to cite:
Jiménez-Redondo, G.; Martínez-Noguera, F. J.; Alcaraz, P. E.; Marín-Pagán, C. Physiological Effects of Weighted-Vest in Trail Running Athletes: A Pilot Study. Preprints2023, 2023110570. https://doi.org/10.20944/preprints202311.0570.v1
Jiménez-Redondo, G.; Martínez-Noguera, F. J.; Alcaraz, P. E.; Marín-Pagán, C. Physiological Effects of Weighted-Vest in Trail Running Athletes: A Pilot Study. Preprints 2023, 2023110570. https://doi.org/10.20944/preprints202311.0570.v1
Jiménez-Redondo, G.; Martínez-Noguera, F. J.; Alcaraz, P. E.; Marín-Pagán, C. Physiological Effects of Weighted-Vest in Trail Running Athletes: A Pilot Study. Preprints2023, 2023110570. https://doi.org/10.20944/preprints202311.0570.v1
APA Style
Jiménez-Redondo, G., Martínez-Noguera, F. J., Alcaraz, P. E., & Marín-Pagán, C. (2023). Physiological Effects of Weighted-Vest in Trail Running Athletes: A Pilot Study. Preprints. https://doi.org/10.20944/preprints202311.0570.v1
Chicago/Turabian Style
Jiménez-Redondo, G., Pedro E. Alcaraz and Cristian Marín-Pagán. 2023 "Physiological Effects of Weighted-Vest in Trail Running Athletes: A Pilot Study" Preprints. https://doi.org/10.20944/preprints202311.0570.v1
Abstract
The need to carry different items, which become an extra load, is a characteristic of trail running. The aim of this study is to determine physiological-metabolic changes produced by running with extra load. Four male well-trained trail runners completed three treadmill maximal metabolic tests carrying different loads (0% (L0), 5% (L5), and 10% (L10) of their body mass) in a weighted vest. Gasses exchange was monitored to assess ventilatory thresholds 1 (VT1), and 2 (VT2), zone of maximal fat oxidation, and peak oxygen consumption (VO2peak). Heart rate (HR), power and velocity (V) were tracked for comparing their behavior. A repeated measures ANOVA showed significant differences in V (p<.001; ηp2= 0.910) as a limitation for reaching peak velocity (Vpeak) with L10 respect to L0 (p=0.001), and L5 (p=0.011). Power expression showed differences (p=0.068; ηp2= 0.592). It tended to be greater with L10 than L0 (p=0.057), despite achieving lower V. VT2 tended to occur at different %VO2peak (p=0.069; ηp2= 0.591). L5 VT2 was reached at higher %VO2peak than L0 (p=0.062), and L10 (p=0.071). ANOVA also showed a tendency to signification for V at this point (p= 0.098; ηp2= 0.538). In conclusion, L10 seems to limit Vpeak while L5 may delay VT2 expression.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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