Low-volume high-intensity swim training is superior to high-volume low-intensity training in relation to insulin sensitivity and glucose control in inactive middle-aged women

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Connolly, L. J. (författare)

Low-volume high-intensity swim training is superior to high-volume low-intensity training in relation to insulin sensitivity and glucose control in inactive middle-aged women

Artikel/kapitelEngelska2016

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2016-07-29
Springer Science and Business Media LLC,2016

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LIBRIS-ID:oai:gup.ub.gu.se/276995
https://gup.ub.gu.se/publication/276995URI
https://doi.org/10.1007/s00421-016-3441-8DOI

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Språk:engelska

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We tested the hypothesis that low-volume high-intensity swimming has a larger impact on insulin sensitivity and glucose control than high-volume low-intensity swimming in inactive premenopausal women with mild hypertension. Sixty-two untrained premenopausal women were randomised to an inactive control (n = 20; CON), a high-intensity low-volume (n = 21; HIT) or a low-intensity high-volume (n = 21; LIT) training group. During the 15-week intervention period, HIT performed 3 weekly 6-10 x 30-s all-out swimming intervals (average heart rate (HR) = 86 +/- 3 % HRmax) interspersed by 2-min recovery periods and LIT swam continuously for 1 h at low intensity (average HR = 73 +/- 3 % HRmax). Fasting blood samples were taken and an oral glucose tolerance test (OGTT) was conducted pre- and post-intervention. After HIT, resting plasma [insulin] was lowered (17 +/- 34 %; P < 0.05) but remained similar after LIT and CON. Following HIT, 60-min OGTT plasma [insulin] and [glucose] was lowered (24 +/- 30 % and 10 +/- 16 %; P < 0.05) but remained similar after LIT and CON. Total area under the curve for plasma [glucose] was lower (P < 0.05) after HIT than LIT (660 +/- 141 vs. 860 +/- 325 mmol min L-1). Insulin sensitivity (HOMA-IR) had increased (P < 0.05) by 22 +/- 34 % after HIT, with no significant change after LIT or CON, respectively. Plasma soluble intracellular cell adhesion molecule 1 was lowered (P < 0.05) by 4 +/- 8 and 3 +/- 9 % after HIT and CON, respectively, while plasma soluble vascular cell adhesion molecule 1 had decreased (P < 0.05) by 8 +/- 23 % after HIT only. These findings suggest that low-volume high-intensity intermittent swimming is an effective and time-efficient training strategy for improving insulin sensitivity, glucose control and biomarkers of vascular function in inactive, middle-aged mildly hypertensive women.

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap Idrottsvetenskap hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences Sport and Fitness Sciences hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Fysiologi hsv//swe
MEDICAL AND HEALTH SCIENCES Basic Medicine Physiology hsv//eng
Blood glucose
Type 2 diabetes
Body composition
Upper body exercise
Metabolic health
skeletal-muscle
endothelial dysfunction
postmenopausal women
oxidative capacity
transport proteins
vascular function
blood-pressure
fat oxidation
exercise
health

Biuppslag (personer, institutioner, konferenser, titlar ...)

Nordsborg, N. B. (författare)
Nyberg, M. (författare)
Weihe, P. (författare)
Krustrup, P. (författare)
Mohr, Magni,1973Gothenburg University,Göteborgs universitet,Institutionen för kost- och idrottsvetenskap,Department of Food and Nutrition, and Sport Science(Swepub:gu)xmohrm (författare)
Göteborgs universitetInstitutionen för kost- och idrottsvetenskap (creator_code:org_t)

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Ingår i:European Journal of Applied Physiology: Springer Science and Business Media LLC116:10, s. 1889-18971439-63191439-6327

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Av författaren/redakt...: Connolly, L. J.; Nordsborg, N. B.; Nyberg, M.; Weihe, P.; Krustrup, P.; Mohr, Magni, 197 ...

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Hälsovetenskap; och Idrottsvetenskap

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Av lärosätet: Göteborgs universitet

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