How do you interpret heart rate recovery (HRR) in MWD conditioning?

• A. Faster HRR indicates worse fitness; slower HRR indicates fatigue
• B. HRR is not related to fitness
• C. Faster HRR indicates better cardiovascular fitness; slower HRR may indicate fatigue or overtraining
• D. HRR only reflects hydration

Answer: (C)

Heart rate recovery after exercise reflects how quickly the autonomic nervous system returns to baseline, with parasympathetic reactivation driving the rapid drop in heart rate. Faster HRR indicates the dog's cardiovascular system and autonomic regulation are efficiently recovering, which corresponds to better cardiovascular fitness. Conversely, a slower HRR suggests the dog is still under physiological stress, possibly fatigued or overtrained, and not recovering as quickly.

This is why the best interpretation is that faster HRR signals better fitness and slower HRR may indicate fatigue or overtraining. Hydration status can influence performance components, but HRR is not a sole reflection of hydration, and stating it’s unrelated to fitness or solely about hydration would miss the core link between autonomic recovery and conditioning progress.