Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females. / Mee, Jessica; Peters, Sophie ; Doust, Jo et al.
Yn: Journal of Science and Medicine in Sport, Cyfrol 21, Rhif 2, 02.2018, t. 190-195.

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

HarvardHarvard

Mee, J, Peters, S, Doust, J & Maxwell, N 2018, 'Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females', Journal of Science and Medicine in Sport, cyfrol. 21, rhif 2, tt. 190-195. https://doi.org/10.1016/j.jsams.2017.06.024

APA

Mee, J., Peters, S., Doust, J., & Maxwell, N. (2018). Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females. Journal of Science and Medicine in Sport, 21(2), 190-195. https://doi.org/10.1016/j.jsams.2017.06.024

CBE

Mee J, Peters S, Doust J, Maxwell N. 2018. Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females. Journal of Science and Medicine in Sport. 21(2):190-195. https://doi.org/10.1016/j.jsams.2017.06.024

MLA

VancouverVancouver

Mee J, Peters S, Doust J, Maxwell N. Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females. Journal of Science and Medicine in Sport. 2018 Chw;21(2):190-195. Epub 2017 Gor 4. doi: 10.1016/j.jsams.2017.06.024

Author

Mee, Jessica ; Peters, Sophie ; Doust, Jo et al. / Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females. Yn: Journal of Science and Medicine in Sport. 2018 ; Cyfrol 21, Rhif 2. tt. 190-195.

RIS

TY - JOUR

T1 - Sauna exposure immediately prior to short-term heat acclimation accelerates phenotypic adaptation in females

AU - Mee, Jessica

AU - Peters, Sophie

AU - Doust, Jo

AU - Maxwell, Neil

PY - 2018/2

Y1 - 2018/2

N2 - Objectives: Investigate whether a sauna exposure prior to short-term heat acclimation (HA) accelerates phenotypic adaptation in females. Design: Randomised, repeated measures, cross-over trial.Methods: Nine females performed two 5-d HA interventions (controlled hyperthermia Tre ≥ 38.5°C), separated by 7-wk, during the follicular phase of the menstrual cycle confirmed by plasma concentrations of 17-β estradiol and progesterone. Prior to each 90-min HA session participants sat for 20-min in either a temperate environment (20°C, 40% RH; HAtemp) wearing shorts and sports bra or a hot environment (50°C, 30% RH) wearing a sauna suit to replicate sauna conditions (HAsauna). Participants performed a running heat tolerance test (RHTT) 24-hr pre and 24-hr post HA.Results: Mean heart rate (HR) (85±4 vs. 68±5 bpm, p≤0.001), sweat rate (0.4±0.2 vs. 0.0±0.0 L.hr-1, p≤0.001), and thermal sensation (6±0 vs. 5±1, p=0.050) were higher during the sauna compared to temperate exposure. Resting rectal temperature (Tre) (-0.28±0.16°C), peak Tre (-0.42±0.22°C), resting HR (-10±4 bpm), peak HR (-12±7 bpm), Tre at sweating onset (-0.29±0.17°C) (p≤0.001), thermal sensation (-0.5±0.5; p=0.002), and perceived exertion (-3±2; p≤0.001) reduced during the RHTT, following HAsauna; but not HAtemp. Plasma volume expansion was greater following HAsauna (HAsauna, 9±7%; HAtemp, 1±5%; p=0.013). Sweat rate (p≤0.001) increased and sweat NaCl (p=0.006) reduced during the RHTT following HAsauna and HAtemp. Conclusions: This novel strategy initiated HA with an attenuation of thermoregulatory, cardiovascular, and perceptual strain in females due to a measurably greater strain in the sauna compared to temperate exposure when adopted prior to STHA.

AB - Objectives: Investigate whether a sauna exposure prior to short-term heat acclimation (HA) accelerates phenotypic adaptation in females. Design: Randomised, repeated measures, cross-over trial.Methods: Nine females performed two 5-d HA interventions (controlled hyperthermia Tre ≥ 38.5°C), separated by 7-wk, during the follicular phase of the menstrual cycle confirmed by plasma concentrations of 17-β estradiol and progesterone. Prior to each 90-min HA session participants sat for 20-min in either a temperate environment (20°C, 40% RH; HAtemp) wearing shorts and sports bra or a hot environment (50°C, 30% RH) wearing a sauna suit to replicate sauna conditions (HAsauna). Participants performed a running heat tolerance test (RHTT) 24-hr pre and 24-hr post HA.Results: Mean heart rate (HR) (85±4 vs. 68±5 bpm, p≤0.001), sweat rate (0.4±0.2 vs. 0.0±0.0 L.hr-1, p≤0.001), and thermal sensation (6±0 vs. 5±1, p=0.050) were higher during the sauna compared to temperate exposure. Resting rectal temperature (Tre) (-0.28±0.16°C), peak Tre (-0.42±0.22°C), resting HR (-10±4 bpm), peak HR (-12±7 bpm), Tre at sweating onset (-0.29±0.17°C) (p≤0.001), thermal sensation (-0.5±0.5; p=0.002), and perceived exertion (-3±2; p≤0.001) reduced during the RHTT, following HAsauna; but not HAtemp. Plasma volume expansion was greater following HAsauna (HAsauna, 9±7%; HAtemp, 1±5%; p=0.013). Sweat rate (p≤0.001) increased and sweat NaCl (p=0.006) reduced during the RHTT following HAsauna and HAtemp. Conclusions: This novel strategy initiated HA with an attenuation of thermoregulatory, cardiovascular, and perceptual strain in females due to a measurably greater strain in the sauna compared to temperate exposure when adopted prior to STHA.

KW - Controlled hyperthermia

KW - Sweat sodium chloride

KW - Thermoregulation

KW - 17-β estradiol

KW - Progesterone

U2 - 10.1016/j.jsams.2017.06.024

DO - 10.1016/j.jsams.2017.06.024

M3 - Article

VL - 21

SP - 190

EP - 195

JO - Journal of Science and Medicine in Sport

JF - Journal of Science and Medicine in Sport

SN - 1440-2440

IS - 2

ER -