Assess ability to apply the FITT (Frequency, Intensity, Time, Type) principle to design and adjust a 4-week combined cardiovascular and strength-training program for a high-school athlete. Require an initial week-by-week plan specifying FITT for both modalities, progression strategy, recovery and safety considerations, measurable goals and sport-specific adaptations; then provide justified modifications for two common scenarios (e.g., increased fatigue/illness, missed sessions or performance plateau) explaining how changes preserve overload, specificity and adequate recovery.