Comparison of the Effects of Glucose and Fructose on Exercise Metabolism, Perceived Exertion, and Recovery in Untrained Females

Table 2

Effect of GLU and GLU + FRUC on VO₂, RER, CHOtot, and FATtot in untrained women during submaximal exercise (0–60 min) and recovery period (61–90 min).

	Time (min)
	0–15	16–30	31–45	46–60	61–75	76–90
GLU+FRUC
VO2 (L/min)	1.02±0.09	1.05±0.09	1.08±0.08	1.10±0.08	0.29±0.04	0.28±0.04
RER (g/min)	1.00±0.01	0.94±0.00	0.93±0.01	0.92±0.01	0.93±0.04	0.90±0.04
CHOtot (g/min)	1.02±0.09	0.83±0.06	0.82±0.06	0.80±0.06	0.22±0.04	0.17±0.04
FATtot (g/min)	0.01±0.02	0.08±0.01	0.10±0.01	0.11±0.01	0.03±0.02	0.04±0.02
GLUC
VO2 (L/min)	1.10±0.07	1.14±0.09	1.13±0.08	1.14±0.08	0.33±0.06	0.27±0.02
RER (g/min)	0.99±0.02	0.93±0.01	0.93±0.01	0.91±0.01	0.94±0.02	0.85±0.04
CHOtot (g/min)	1.06±0.05	0.84±0.04	0.84±0.05	0.78±0.05	0.26±0.06	0.14±0.05
FATtot (g/min)	0.02±0.02	0.11±0.03	0.11±0.07	0.14±0.02	0.03±0.01	0.06±0.02

GLU: glucose; GLU + FRUC: glucose + fructose, VO₂: mean oxygen uptake; RER: respiratory exchange ratio, CHOtot: total carbohydrate oxidation, and FATtot: total fat oxidation.