Influence of dietary nitrate supplementation on local sweating and cutaneous vascular responses during exercise in a hot environment.
dc.contributor.author | Amano, T | |
dc.contributor.author | Okushima, D | |
dc.contributor.author | Breese, Brynmor | |
dc.contributor.author | Bailey, S | |
dc.contributor.author | Koga, S | |
dc.contributor.author | Kondo, N | |
dc.date.accessioned | 2018-05-22T12:09:15Z | |
dc.date.issued | 2018-08 | |
dc.identifier.issn | 1439-6319 | |
dc.identifier.issn | 1439-6327 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/11544 | |
dc.description.abstract |
PURPOSE: We investigated the influence of inorganic nitrate ([Formula: see text]) supplementation on local sweating and cutaneous vascular responses during exercise in hot conditions. METHOD: Eight healthy, young subjects were assigned in a randomized, double-blind, crossover design to receive [Formula: see text]-rich beetroot (BR) juice (140 mL/day, containing ~ 8 mmol of [Formula: see text]) and [Formula: see text]-depleted placebo (PL) juice (140 mL/day, containing ~ 0.003 mmol of [Formula: see text]) for 3 days. On day 3 of supplementation, subjects cycled at an intensity corresponding to 55% of [Formula: see text]O2max for 30 min in hot conditions (30 °C, 50% relative humidity). Chest and forearm sweat rate (SR) and skin blood flow (SkBF), were measured continuously. Cutaneous vascular conductance (CVC) was calculated by SkBF/mean arterial pressure (MAP). RESULTS: Prior to exercise, plasma [Formula: see text] (21 ± 6 and 581 ± 161 µM) and nitrite ([Formula: see text], 87 ± 28 and 336 ± 156 nM) concentrations were higher after BR compared to PL supplementation (P ≤ 0.011, n = 6). Oesophageal, mean skin, and mean body temperatures during exercise were not different between conditions. In addition, BR supplementation did not affect SR, SkBF, and CVC during exercise. A lower MAP was found after 30 min of exercise following BR supplementation (112 ± 6 and 103 ± 6 mmHg for PL and BR, respectively, P = 0.021). CONCLUSION: These results suggest that inorganic [Formula: see text] supplementation, which increases the potential for O2-independent NO production, does not affect local sweating and cutaneous vascular responses, but attenuates blood pressure in young healthy subjects exercising in a hot environment. | |
dc.format.extent | 1579-1588 | |
dc.format.medium | Print-Electronic | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Springer Verlag | |
dc.subject | Nitric oxide synthesis | |
dc.subject | Thermoregulation | |
dc.subject | Heat loss response | |
dc.subject | Sweat glands | |
dc.title | Influence of dietary nitrate supplementation on local sweating and cutaneous vascular responses during exercise in a hot environment. | |
dc.type | journal-article | |
dc.type | Comparative Study | |
dc.type | Journal Article | |
dc.type | Randomized Controlled Trial | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000438094700007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.issue | 8 | |
plymouth.volume | 118 | |
plymouth.publication-status | Published | |
plymouth.journal | European Journal of Applied Physiology | |
dc.identifier.doi | 10.1007/s00421-018-3889-9 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Health | |
plymouth.organisational-group | /Plymouth/Faculty of Health/School of Biomedical Sciences | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Institute of Translational and Stratified Medicine (ITSMED) | |
plymouth.organisational-group | /Plymouth/Research Groups/Institute of Translational and Stratified Medicine (ITSMED)/CBR | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
dc.publisher.place | Germany | |
dcterms.dateAccepted | 2018-05-10 | |
dc.rights.embargodate | 2019-5-15 | |
dc.identifier.eissn | 1439-6327 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1007/s00421-018-3889-9 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2018-08 | |
rioxxterms.type | Journal Article/Review |