Which application of FITT targets energy systems used in short, intense bursts?

• A. Applying FITT to Flexibility Training
• B. Applying FITT to Cardiovascular Training
• C. Applying FITT to Anaerobic Training
• D. Applying FITT to Strength Training

Answer: (C)

The main idea here is matching how the body fuels very short, high‑intensity efforts with how we structure training using FITT. Short, intense bursts rely on anaerobic energy systems—the phosphagen (ATP‑PC) system for the briefest efforts (roughly up to 10 seconds) and the anaerobic glycolytic system for slightly longer bursts (about 10 seconds to a couple of minutes). When you apply FITT to anaerobic training, you design work bouts that are very hard, short in duration, and followed by rest long enough to replenish phosphocreatine stores and clear metabolic byproducts. This approach pushes adaptations like greater phosphagen reserves, higher glycolytic enzyme activity, and enhanced neuromuscular power, all of which improve performance in those fast, powerful efforts.

Other training focuses don’t center energy systems in the same way. Flexibility work concentrates on range of motion and joint mobility rather than energy production. Cardiovascular training targets the aerobic system, emphasizing longer, more sustainable efforts. Strength training aims to increase force output and muscular capacity, and while it uses anaerobic energy during the work, its FITT design typically prioritizes overload and neural/mkeletal adaptations rather than optimizing the specific short‑burst energy pathways.