Resistance too heavy — gait breaks down
Overloaded sled changes sprint mechanics rather than reinforcing them.
Overactive muscles
Erector spinaeHip flexors
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗Sport · Full Body
Resisted Sprint (Sled or Band)
Coaching cues
- Sled harness or band attached; lean into the resistance at 45°
- Drive through the ground with maximum force each step
- Resistance should not exceed 10% of bodyweight for true speed work
- Short distances — 10–20 yards with full recovery between reps
Common faults 2
Standing upright under the resistance
Not leaning into the sled means horizontal force production is wasted.
Overactive muscles
Erector spinaeQuadriceps
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗