First: Beneficial metabolic adaptations due to endurance exercise training in the fasted state HERE
From first: “In conclusion, F is more effective than CHO to increase muscular oxidative capacity, and at the same time enhances exercise-induced net IMCL degradation. In addition, F but not CHO prevented drop of blood glucose concentration during fasting exercise.”
Second: Muscle Physiology Changes Induced by Every Other Day Feeding and Endurance Exercise in Mice: Effects on Physical Performance HERE
From second:
“EOD protected muscle fibers against oxidative stress even in animals that suffered endurance activity. This higher protection may be related to lower muscle damage after extenuating activity in non-trained EOD animals determined by the levels of creatine kinase in plasma. Our results agree with several other reports that suggest that EOD protects muscle against oxidative stress and even avoids muscle loss during aging [59], [60]. This protection is based on lower ROS production by mitochondria probably by the metabolic changes based on the catabolism of lipids [61], by more balanced activity of mitochondria [36] and higher level of Q-dependent antioxidant protection of membranes [55].
In summary, our work indicate that a nutritional stress induced by the EOD model of CR together with a moderate increase of energy expenditure through physical exercise produces metabolic changes that increase the efficiency of mitochondrial activity in muscle, reduces oxidative damage and improves physical performance. Subtle modifications at the cellular and biochemical levels in response to dietary stress seem to be the basis for a higher mitochondrial efficiency. Taking into consideration that the decline in physical activity during age is a common factor in many species, the results shown here suggest that the combination of the reduction of calorie intake and the practice of aerobic exercise would also increase physical performance in humans and then, improve their quality of life.”
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Good article on fasted training. I started fasted training after reading the book Eat Stop Eat and going to leangains.com