A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Intramyocellular lipid accumulation after sprint interval and moderate-intensity continuous training in healthy and diabetic subjects




TekijätSjoros T, Saunavaar V, Loyttyniemi E, Koivumaki M, Heinonen IHA, Eskelinen JJ, Virtanen KA, Hannukainen JC, Kalliokoski KK

KustantajaWILEY

Julkaisuvuosi2019

JournalPhysiological Reports

Tietokannassa oleva lehden nimiPHYSIOLOGICAL REPORTS

Lehden akronyymiPHYSIOL REP

Artikkelin numeroARTN e13980

Vuosikerta7

Numero3

Sivujen määrä11

ISSN2051-817X

DOIhttps://doi.org/10.14814/phy2.13980

Rinnakkaistallenteen osoitehttps://research.utu.fi/converis/portal/detail/Publication/39721087


Tiivistelmä
The effects of sprint interval training (SIT) on intramyocellular (IMCL) and extramyocellular (EMCL) lipid accumulation are unclear. We tested the effects of SIT and moderate-intensity continuous training (MICT) on IMCL and EMCL accumulation in a randomized controlled setting in two different study populations; healthy untrained men (n 28) and subjects with type 2 diabetes (T2D) or prediabetes (n 26). Proton magnetic resonance spectroscopy (H-1 MRS) was used to determine IMCL and EMCL in the Tibialis anterior muscle (TA) before and after a 2-week exercise period. The exercise period comprised six sessions of SIT or MICT cycling on a cycle ergometer. IMCL increased after SIT compared to MICT (P = 0.042) in both healthy and T2D/prediabetic subjects. On EMCL the training intervention had no significant effect. In conclusion, IMCL serves as an important energy depot during exercise and can be extended by high intensity exercise. The effects of high intensity interval exercise on IMCL seem to be similar regardless of insulin sensitivity or the presence of T2D.

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Last updated on 2024-26-11 at 21:25