Some CrossFit workouts include combinations that make athletes immediately question the programming.
Heavy deadlifts followed by running is one of them.
You finish a set of deadlifts, step away from the bar, start running… and suddenly your legs feel completely different.
Heavy. Slow. Uncoordinated.
Running after deadlifts is one of the most uncomfortable combinations in CrossFit workouts.
But there are specific reasons why it feels that way.
Deadlifts Exhaust the Posterior Chain
The deadlift targets several major muscles in the posterior chain, including:
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Glutes
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Hamstrings
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Lower back
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Core
These muscles are responsible for generating power when lifting the barbell.
But they’re also heavily involved in running.
After multiple heavy sets, those muscles are already fatigued. When you transition immediately into running, they’re forced to keep working under fatigue.
That’s why the first few steps often feel awkward and slow.
Your Legs Lose Their Explosiveness
Running requires a repeated cycle of pushing off the ground.
That push comes primarily from the glutes and hamstrings — the same muscles used during deadlifts.
When those muscles are already fatigued, the push-off becomes weaker.
The result is a stride that feels shorter, slower, and much harder to maintain.
The Transition Is Sudden
Another reason this combination feels so difficult is the sudden change in movement.
Deadlifts are a controlled strength movement.
Running is a dynamic endurance movement.
Switching from one to the other forces the body to rapidly adjust both muscle recruitment and energy systems.
That transition can feel uncomfortable until the body settles into a rhythm.
Your Heart Rate Spikes Quickly
Heavy deadlifts increase heart rate, especially when performed in higher rep ranges.
When you immediately begin running afterward, your cardiovascular system has to work even harder.
Your body is trying to:
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Deliver oxygen to fatigued muscles
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Maintain running pace
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Recover from the heavy lifting
This combination can push heart rate very high very quickly.
Grip Fatigue Adds to the Challenge
Deadlifts also challenge grip strength.
After holding a heavy barbell, the forearms are often fatigued.
While grip isn’t directly involved in running, the overall fatigue in the upper body can contribute to the feeling that everything is working harder than usual.
Why Coaches Program This Combination
Despite how uncomfortable it feels, combining strength movements with running is intentional.
It helps athletes develop the ability to move efficiently under fatigue.
Many sports require this type of transition — going from powerful strength efforts into endurance activity.
Training this combination builds both strength and conditioning simultaneously.
Learning to Pace the Workout
Experienced athletes learn that pacing becomes extremely important when workouts combine heavy lifting and running.
Starting the deadlifts too aggressively can make the run much harder.
Instead, many athletes try to:
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Keep the deadlift sets controlled
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Breathe between sets
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Settle into a steady running pace
This strategy helps manage fatigue throughout the workout.
Final Thought
Running after heavy deadlifts feels brutal because the same muscles are responsible for both movements.
When those muscles are already fatigued, running becomes much more challenging.
But that’s exactly why the combination appears in CrossFit programming.
It teaches athletes to keep moving efficiently even when their body is tired.
And once the workout is finished, it becomes another memorable entry in the long list of challenging CrossFit WODs.