American Football
Move · High-Intensity · Movement, Typed Supps
The work lasts a few seconds; what separates players is how much of their power is back before the next snap.
Stage by stage
- Warm-up (Preparing for collision loads): Preparation targets high-force tolerance and readiness rather than endurance.
- During a play (Seconds of near-maximal effort): A few seconds at close to full output run on the muscle's fast phosphocreatine store.
- Between plays (Aerobic recovery refills power): Restoring phosphocreatine in the huddle is an oxidative process, so aerobic fitness decides the next snap.
- Across a season (Knees and head impacts): Cutting and contact drive knee ligament injuries, and repetitive sub-concussive impacts accumulate, particularly in the line.
Muscles trained
- Primary: quads, glutes, shoulders
- Secondary: hamstrings, traps, heart
Intensity
8 METs (Football, competitive).
Time to effect
- Weeks: Reading a play and reacting to it get faster within a few weeks of regular practice reps.
- Months: Explosive strength off the line and the conditioning to tolerate repeated high-force collisions build over a full off-season of structured strength and conditioning work.
Related supplements
Common myth
“Only skill-position players like receivers and running backs need to be in top condition — linemen just need to be big.” In reality: Linemen engage in near-maximal effort on essentially every single play, dozens of times a game, and tracking data shows they often produce some of the highest total work rates on the field despite their individual bursts being short.
More in High-Intensity
In the glossary
Sources