Why warm-ups and recovery matter when a run gets faster

Give the first effort a lead-in

The American College of Sports Medicine describes high-intensity interval training as repeated hard efforts separated by recovery, and advises people to establish a foundation of regular aerobic activity before starting demanding interval work. Its guidance also notes that people with certain health risk factors may need medical clearance. That is a reason to treat a warm-up as part of the session, not as wasted distance.

Raptor Run lets you set a warm-up before chase encounters. It gives you room to begin at a comfortable pace, settle into the route, and decide how the day feels before a warning arrives. A warm-up setting is a product control; it is not a guarantee against injury.

Recovery changes the next effort

Intervals mode allows recovery time between planned chases. Recovery is the part of an interval session that lets the next effort be a separate effort. Shorter recovery may feel more demanding, while longer recovery gives more breathing room. There is no single recovery duration that suits every runner or goal.

Be careful with certainty

Running injury research has not consistently linked one specific change in distance, frequency, duration, or intensity to injury across all runners. A review of prospective studies found conflicting evidence and cautioned against universal progression rules. That does not mean load is irrelevant; it means advice such as “increase by exactly X percent and you will be safe” goes beyond what the review can establish.

Use the controls to match the run you are ready for. If you are new to harder efforts or returning after time away, start conservatively and consider qualified medical advice when appropriate. Stop if pain, dizziness, or other concerning symptoms occur.

Sources

ACSM: high-intensity interval training information; systematic review of training parameters and running injury.