NUTR-4550 Lecture Notes - Lecture 7: Insulin, Very Low-Density Lipoprotein, Carbohydrate
Document Summary
Lecture 7: fuel utilization in response to physical. Figure 20. 2 shows relative explanations about body expenditures: understand that in both scenarios the muscle is contributing to almost all of the energy expenditures. During a marathon (long-distance running: aerobic atp production, with short periods of anaerobic atp production is occurring, muscle is expending around 1500 watts, while the whole body is expending around. During a sprint (short bursts: anaerobic atp production is occurring here. Relate this back to lecture 6, where type 2x muscle fibers are using anaerobic. Atp production which results in lactic acid: muscle is expending around 3500 watts, and the whole body is expending around. Due to the short period of activity, your lucky if you use 20 calories. Slide 2: blood concentrations of different nutrients during exercise. Plasma triacylglycerols and fatty acids are essentially unchanged over 90 minutes of activity: it does not change because the body tends to have excess stores available.
