ORCID Profile
0000-0001-6773-8489
Current Organisation
Leeds Beckett University
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Publisher: Springer Science and Business Media LLC
Date: 08-09-2018
Publisher: Informa UK Limited
Date: 22-01-2019
DOI: 10.1080/02640414.2019.1568173
Abstract: This study investigated the effects of two separate doses of sodium bicarbonate (NaHCO
Publisher: Elsevier BV
Date: 2021
Publisher: Informa UK Limited
Date: 08-03-2019
DOI: 10.1080/15438627.2019.1586707
Abstract: This study evaluated the chronic effects of nitrate (NO
Publisher: Informa UK Limited
Date: 08-12-2017
DOI: 10.1080/17461391.2017.1410233
Abstract: To quantify the effects of acute hypoxic exposure on exercise capacity and performance, which includes continuous and intermittent forms of exercise. A systematic review was conducted with a three-level mixed effects meta-regression. The ratio of means method was used to evaluate main effects and moderators providing practical interpretations with percentage change. A systemic search was performed using three databases (Google scholar, PubMed and SPORTDiscus). Eligibility criteria for selecting studies: Inclusion was restricted to investigations that assessed exercise performance (time trials (TTs), sprint and intermittent exercise tests) and capacity (time to exhaustion test, TTE) with acute hypoxic (<24 h) exposure and a normoxic comparator. Eighty-two outcomes from 53 studies (N = 798) were included in this review. The results show an overall reduction in exercise performance/capacity -17.8 ± 3.9% (95% CI -22.8% to -11.0%), which was significantly moderated by -6.5 ± 0.9% per 1000 m altitude elevation (95% CI -8.2% to -4.8%) and oxygen saturation (-2.0 ± 0.4% 95% CI -2.9% to -1.2%). TT (-16.2 ± 4.3% 95% CI -22.9% to -9%) and TTE (-44.5 ± 6.9% 95% CI -51.3% to -36.7%) elicited a negative effect, whilst indicating a quadratic relationship between hypoxic magnitude and both TTE and TT performance. Furthermore, exercise less than 2 min exhibited no ergolytic effect from acute hypoxia. Summary/Conclusion: This review highlights the ergolytic effect of acute hypoxic exposure, which is curvilinear for TTE and TT performance with increasing hypoxic levels, but short duration intermittent and sprint exercise seem to be unaffected.
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Danny Brown.