So in a nutshell, improvement in both aerobic and anaerobic energy systems are required for optimal conditioning in team sports. (sportstarsmag.com)
Short - term activities requiring greater power outputs depend on anaerobic energy, whereas longer duration activities with less power outputs shift to aerobic energy. (blog.nasm.org)
In addition, the statement about anaerobic energy coming primarily from carbohydrates is true. (personalfitnessadvantage.com)