Prolonged sitting interrupted by 6-min of high-intensity exercise: Circulatory, metabolic, hormonal, thermal, cognitive, and perceptual responses
Permanent lenke
https://hdl.handle.net/10037/14918Dato
2018-10-16Type
Journal articleTidsskriftartikkel
Peer reviewed
Forfatter
Sperlich, Billy; De Clerck, Ine; Zinner, Christoph; Holmberg, Hans-Christer; Wallmann-Sperlich, BirgitSammendrag
The aim was to examine certain aspects of circulatory, metabolic, hormonal,
thermoregulatory, cognitive, and perceptual responses while sitting following a brief
session of high-intensity interval exercise. Twelve students (five men; age, 22 ± 2 years)
performed two trials involving either simply sitting for 180 min (SIT) or sitting for this
same period with a 6-min session of high-intensity exercise after 60 min (SIT+HIIT).
At T (after 30 min of resting), T1 (after a 20-min breakfast), T2 (after sitting for 1 h),
T3 (immediately after the HIIT), T4, T5, T6, and T7 (30, 60, 90, and 120 min after
the HIIT), circulatory, metabolic, hormonal, thermoregulatory, cognitive, and perceptual
responses were assessed. The blood lactate concentration (at T3–T5), heart rate (at
T3–T6), oxygen uptake (at T3–T7), respiratory exchange ratio, and sensations of heat
(T3–T5), sweating (T3, T4) and odor (T3), as well as perception of vigor (T3–T6), were
higher and the respiratory exchange ratio (T4–T7) and mean body and skin temperatures
(T3) lower in the SIT+HIIT than the SIT trial. Levels of blood glucose and salivary cortisol,
cerebral oxygenation, and feelings of anxiety/depression, fatigue or hostility, as well as
the variables of cognitive function assessed by the Stroop test did not differ between
SIT and SIT+HIIT. In conclusion, interruption of prolonged sitting with a 6-min session
of HIIT induced more pronounced circulatory and metabolic responses and improved
certain aspects of perception, without affecting selected hormonal, thermoregulatory or
cognitive functions.
Beskrivelse
Published version, licensed CC BY-NC-ND 4.0. Source at: http://doi.org/10.3389/fphys.2018.01279