What are two outcomes following multiple low-glycogen training sessions?

The correct answer highlights the physiological adaptations that occur as a result of multiple low-glycogen training sessions. When the body is trained under conditions of low glycogen availability, it learns to become more efficient at utilizing fat as a fuel source. This metabolic shift is crucial for endurance performance and overall metabolic health, as it can enhance the body's ability to spare glycogen for when it's truly needed.

Additionally, low-glycogen training influences the delivery of oxygen to working muscles. Training in this state often leads to adaptations that improve cardiovascular efficiency, enhance capillary density, and promote better oxygen utilization during exercise. Overall, these adaptations contribute to improved endurance and performance, enabling athletes to sustain prolonged physical activity.

In contrast, the other options do not accurately reflect the specific adaptations that result from low-glycogen training. Increased muscle mass and strength typically require high-intensity training and adequate glycogen availability. Faster recovery times and decreased injury risk are more closely associated with proper nutrition and recovery protocols rather than low-glycogen states. Lastly, while coordination and flexibility can improve with various training regimens, they are not direct outcomes of training under low-glycogen conditions.