Sled Drag
The sled drag is a walk or run forwards pulling a weighted sled behind you, attached by straps to a hip belt or shoulder harness. It works the glutes, quads, hamstrings and calves through repeated hip and knee drive, with almost no eccentric phase, and is used for conditioning and acceleration work.
Also called: Sled Drags, Forward Sled Drag, Harness Sled Drag, Sled March · Equipment: strongman · Pattern: compound
Step by step
- Load the sled and clip its straps to a hip belt or shoulder harness. Fit the belt snugly around your hips, or the harness over your shoulders.
- Face away from the sled and walk forwards until the straps are taut.
- Lean slightly forwards from your ankles, with your chest tall and your trunk braced.
- Drive each step by pushing the ground back behind you until your hip is fully straight.
- Take steady, even steps and let your arms swing naturally.
- Keep the straps taut and the sled moving at a steady pace for the whole distance.
- At the end, take a step back to slacken the straps, then unclip.
- Push the ground back behind you
- Straighten the hip on every step
- Chest tall, trunk braced
- Slight lean from the ankles
- Straps taut, steady pace
In VALDA, these cues are one tap away on the exercise while you train.
What it trains
| Muscle | Role | Evidence |
|---|---|---|
| Gluteus maximus | Prime mover | C |
| Quadriceps | Prime mover | C |
| Hamstrings | Secondary | C |
| Gastrocnemius | Secondary | C |
| Soleus | Secondary | C |
| Adductors | Secondary | D |
| Erector spinae | Stabiliser | C |
| Trapezius: middle | Stabiliser | D |
Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.
What goes wrong, and the fix
Rounding forwards into the pull
Fix: Brace, keep your chest tall and lean from your ankles, not your waist.
Short, choppy steps
Fix: Push each foot back until the hip is straight before the next step.
Jerking the sled
Fix: Keep the straps taut and move at a steady, even pace.
Belt riding up
Fix: Fit the belt snugly around your hips before loading the straps.
Upright and leaning back
Fix: Lean slightly forwards from the ankles so your weight moves with the pull.
What the research says
General fitness · first choiceSport performance · first choiceEndurance · first choiceFat loss & conditioning · first choicePowerStrengthMuscle growthRehab & prehab
- Sprint acceleration — A meta-analysis of resisted sled training, most of it with towed sleds like this one, found improvements in the acceleration phase of a sprint, a smaller effect over full sprints and no clear change in top speed. It was not shown to beat normal sprint training.
- Heavy vs light sleds — In a training study, towing a heavy sled that slowed sprinting by about 30% was at least as effective for 5–10 m sprints as a light sled that slowed it by about 10%.
- Load and stride — Kinematic research shows a heavier sled shortens the stride, lengthens ground contact and brings more trunk lean. Many coaches use lighter sleds to keep sprint mechanics close to normal and heavier sleds for walking drags.
- Muscle activity — An EMG study of loaded sled sprints found the quadriceps and glutes took a growing share of the work as the load rose, while the hamstrings' share fell. Activity is not the same as growth.
- Dosing — Sled friction varies with the floor surface, so a common approach is to set drags by distance, time or effort rather than the weight on the sled. There is no direct research comparing these methods.
Log the sled drag in VALDA, with these cues one tap away while you train and your history for it in one place.
General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.