Diurnal variations in muscle and liver glycogen differ depending on the timing of exercise.
J Physiol Sci
; 71(1): 35, 2021 Nov 21.
Article
de En
| MEDLINE
| ID: mdl-34802419
ABSTRACT
It has been suggested that glycogen functions not only in carbohydrate energy storage, but also as molecular sensors capable of activating lipolysis. This study aimed to compare the variation in liver and muscle glycogen during the day due to different timing of exercise. Nine healthy young men participated in two trials in which they performed a single bout of exercise at 70% of their individual maximal oxygen uptake for 60 min in the post-absorptive (morning) or post-prandial (afternoon) state. Liver and muscles glycogen levels were measured using carbon magnetic resonance spectroscopy (13C MRS). Diurnal variations in liver and muscle glycogen compared to baseline levels were significantly different depending on the timing of exercise. The effect of the timing of exercise on glycogen fluctuation is known to be related to a variety of metabolic signals, and the results of this study will be useful for future research on energy metabolism.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Exercice physique
/
Glycogène hépatique
Limites:
Humans
/
Male
Langue:
En
Journal:
J Physiol Sci
Sujet du journal:
FISIOLOGIA
/
TRAUMATOLOGIA
Année:
2021
Type de document:
Article
Pays d'affiliation:
Japon