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What is Deadlift?
A deadlift is a hip-hinge exercise where you pick a loaded barbell up off the floor to a fully standing position, then lower it back down under control. It is one of the "big three" competitive powerlifting lifts alongside the squat and bench press, and arguably the single best test of total-body strength because it trains nearly the entire posterior chain — glutes, hamstrings, back, and grip — in one repetition. Outside competition, it is a staple of general strength training because the hip-hinge pattern it teaches carries directly into everyday lifting, from picking up a box to moving furniture.
How it works
The deadlift works by loading a hip-hinge pattern: you push your hips back, grip the bar just outside your shins, then drive through the floor with your legs while your glutes and hamstrings extend your hips to standing. Your erector spinae and core brace to keep your spine in a neutral, rigid position throughout, transferring force from your legs and hips to the bar rather than absorbing it in your lower back. Your lats pull the bar in against your body to shorten the moment arm at the lower back, and your trapezius and forearms hold the bar in a static grip for the whole rep. Because nearly every major muscle group on the back of your body contributes, the deadlift produces some of the highest absolute loads of any barbell lift — most lifters can deadlift more weight than they can squat or bench.
Types
Conventional deadlift
Feet hip-width, hands outside the knees — the standard competition stance; more hip and back involvement.
Sumo deadlift
A wide stance with hands inside the knees; shorter range of motion and a more upright torso shifts some load to the hips and quads.
Romanian deadlift (RDL)
Starts from the top and hinges only to about knee height without the bar touching the floor — targets the hamstrings and glutes.
Trap bar deadlift
Uses a hexagonal bar you stand inside of; a more upright torso reduces lower-back shear, making it a common beginner or injury-friendly regression.
Worked example
Say you can deadlift 100 kg for a single set of 5 reps with good form. Here's one way that might progress over four weeks using a simple double-progression scheme.
| Week | Weight | Sets x reps | What changed |
|---|---|---|---|
| 1 | 100 kg | 1 x 5 | Baseline — all 5 reps clean |
| 2 | 100 kg | 1 x 6 | +1 rep at the same weight |
| 3 | 100 kg | 1 x 7 | +1 rep again — bar speed still good |
| 4 | 105 kg | 1 x 5 | +5 kg, reps reset to 5 |
Deadlifts recover more slowly than smaller lifts, so most programs add weight every 1-2 weeks rather than every session.
Conventional deadlift vs sumo deadlift
| Conventional | Sumo | |
|---|---|---|
| Stance | Hip-width, hands outside knees | Wide stance, hands inside knees |
| Torso angle | More forward lean | More upright |
| Range of motion | Longer | Shorter |
| Emphasis | Hamstrings, back, erector spinae | Quads and hips, less lower-back shear |
A 2025 biomechanical analysis found sumo produces greater hip and knee joint moments in the frontal plane while conventional generates higher hip-extension moments and more erector spinae activation — pick the stance that lets you keep a neutral spine, not just whichever looks stronger.
By goal
- Beginners: Learn the hip hinge with lighter loads or a trap bar before chasing heavy singles; form breaks down fastest under fatigue on this lift.
- Powerlifters: Train it as the competition lift with low reps (1-5) at high intensity, choosing conventional or sumo based on your competition stance.
- General lifters/bodybuilders: Moderate rep ranges (6-10) on deadlift or Romanian deadlift variations build posterior-chain size without the recovery cost of near-maximal singles.
Common misconceptions
- "Deadlifts are bad for your back." A deadlift performed with a neutral spine loads the back muscles productively; most injuries come from rounding under too much weight, not the movement itself.
- "You should round your back to lift more weight." Rounding under load increases shear force on the lumbar spine; keeping it neutral throughout is the technique standard taught by every major strength organization.
- "The deadlift only trains your lower back." It is a full posterior-chain movement — the glutes and hamstrings do most of the hip-extension work, with the back muscles mainly stabilizing the spine.
Related terms
Deadlift FAQ
What muscles does the deadlift work?
The deadlift primarily works the glutes, hamstrings, and erector spinae, with strong contributions from the lats, traps, and forearms for grip and bar control. It also engages the quadriceps, especially off the floor.
Is the deadlift a compound or isolation exercise?
The deadlift is a compound exercise because it moves multiple joints at once — the hips, knees, and to a lesser extent the ankles and shoulders — and recruits several major muscle groups in a single repetition.
What's the difference between conventional and sumo deadlift?
Conventional uses a hip-width stance with hands outside the knees and more forward torso lean, while sumo uses a wide stance with hands inside the knees and a more upright torso. Sumo generally shortens the range of motion and shifts more load to the hips and quads.
How much should I be able to deadlift?
It varies widely by bodyweight, sex, and training age, but a common intermediate benchmark is lifting roughly 1.5x bodyweight for men and 1.25x bodyweight for women; advanced lifters often exceed 2x bodyweight.
Are deadlifts bad for your lower back?
No — performed with a neutral spine and appropriate loading, deadlifts strengthen the muscles that support your lower back. Risk rises mainly from lifting too heavy too soon or rounding the spine under load.
How often should I deadlift?
Most lifters deadlift once or twice per week, since it's highly fatiguing on the central nervous system and lower back; more frequent, lighter sessions work for some advanced lifters using submaximal loads.
References
- How to Deadlift: Muscles Worked & Proper Form StrengthLog
- Deadlift Wikipedia
- What muscles does deadlift work? How-to, variations, and more Medical News Today
- Technique Series: How to Deadlift ACE Fitness ProSource, 2015
- Biomechanical analysis of conventional and sumo deadlift Frontiers in Bioengineering and Biotechnology / PMC, 2025
- The Effect of Set Up Position on EMG Amplitude, Lumbar Spine Kinetics, and Total Force Output During Maximal Isometric Conventional-Stance Deadlifts J Strength Cond Res / PMC
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