Learn the conventional deadlift: hip hinge as entry test, setup and pull step by step, the typical errors and what the evidence says about a rounded back.
The deadlift is the simplest of the big lifts — and the least forgiving. The movement is explained in one session: bar off the floor, hips through, put it down under control. From experience it becomes load-bearing in roughly eight to twelve weeks (rule of thumb). In a 6-week study of 25 resistance-trained men, deadlifting (three times a week) raised deadlift maximal strength more than squatting and improved jump performance similarly — three of 14 participants developed back pain, though [1]. What makes the deadlift hard is not the technique, it is the start: on the floor you pick up the heaviest weight you can move — and the bar forgives nothing if your position is wrong before you pull.
The honest answer to the question everyone has — is a rounded back going to wreck me? — is uncomfortable for both camps. A systematic review with meta-analysis found no solid evidence that more lumbar spine flexion during lifting causes back pain [2] — although at a low level of evidence and mostly from everyday lifting tasks, not maximal deadlifts. In practice that means: if your back gives a few degrees at 60 percent of your load, that is not a disaster. If it rounds under maximal load because your tension collapses, you lose strength and control at the same time — a bad deal, even without the threat of damage.
And the risk numbers: in powerlifting, rates sit at 1.0 to 4.4 injuries per 1000 training hours, with lower back/pelvis, shoulder and elbow as the most common sites [3]. Counting every pain condition that affects training, 70 percent of 104 surveyed Swedish powerlifters were currently injured, most often at the lumbopelvic region, shoulder and hip; back injuries started four times as often during deadlifts as during other lifts [3]. The deadlift is not dangerous. It is the exercise where you can least afford to get sloppy with load management.
Stick along your back, three contact points, knees slightly bent, push the hips back until the hamstrings pull. This is not a squat, it is a hinge.
Milestone: 10 reps without losing contact and without wobbling.
Bar out of the rack, shoulders back, push the bar down along your legs until the stretch arrives.
Milestone: 3 sets of 8 with 40 kg, bar stays on the leg, back line unchanged.
Midfoot under the bar (the bar visually sits over your shoelaces), grip outside the legs, shins to the bar, chest up and shoulder blades over the bar. Then pull the slack out of the bar: build tension until the bar audibly clicks into the plates.
Milestone: Five single reps with a light load, and on video every setup looks the same.
You push the floor away instead of yanking the bar up. Hips and shoulders rise together; only once the bar has passed the knee do you drive the hips forward. At the top you simply stand tall, no leaning back.
Milestone: The bar stays on your leg through the whole path, and on video the hips and shoulders come up at the same time.
Warm up along the RAMP principle (Raise, Activate, Mobilise, Potentiate — pulse up, activate, mobilise, prime). Long static stretching (60 seconds or more) before heavy sets reduced maximal force in a systematic review, shorter stretches did not [6].
The dose: heavy loads bring more maximal strength, while muscle growth is reached across a broad range of loads [7]; around 10 working sets per muscle group per week is a common guideline [8] (more volume tended to bring more, there is no threshold), spread across at least two sessions [9]. On the deadlift you take the lower end of that range — it costs more recovery than any other exercise.
Milestone: 4 sets of 3 with two reps in reserve and technique like your first rep. Strength gains were similar across a wide range of reps in reserve in a meta-regression [10] — so maximal strength does not necessarily need training to failure.
In a small study of five experienced bodybuilders, mean peak blood pressures of 320 over 250 mmHg were measured during leg press to failure, in one person above 480 over 350 [11], partly caused by breath holding (deadlifts were not measured) — a multiple of your resting value. Brief and, according to the authors, part of the load in healthy people, but reason enough to reserve breath holding for the one heavy set. With high blood pressure, heart disease or eye problems, get medical clearance first.
A lifting belt raised the pressure inside the abdomen by roughly 25 to 40 percent in a small squat study (5 people) [12]. It stabilises — these studies show no documented reduction in injuries. Learn to brace without one.
And the grip: double overhand is the cautious default, because with mixed grip all observed biceps tendon ruptures occurred on the supinated side — the underhand arm; the authors suspect double overhand may lower the risk [5]. If you do use it, use it only for the heaviest set and never on the way down.
This guide explains and motivates, it never replaces supervised coaching. With existing spine or hip issues, your first heavy pull belongs under professional supervision.
The trick that turns a wobbly pull into a solid one happens before the bar moves: pull the slack out of the bar. You build tension until the bar audibly clicks into the plates and your whole body is loaded — only then do you push the floor away. Combine that with an external focus: "push the floor away" instead of "tighten your back". Across meta-analyses covering 73 studies with more than 1800 participants (performance) and 40 studies (learning), an external focus of attention beat an internal one [13].
Both are legitimate, they just distribute the work differently. Conventional has the longer bar path and around 25 to 40 percent more mechanical work; sumo lifters stood wider and held the trunk more upright, and in an EMG study quadriceps activity was higher in sumo [4]. Which one suits you is something you find out by trying both over several weeks, not by calculating.
Less than you think — and still not the goal. A meta-analysis found no solid evidence that more lumbar spine flexion during lifting causes back pain [2], although at a low level of evidence and from everyday lifting tasks. In practice: a few degrees are no drama, but rounding under maximal load costs you strength and control.
One heavy day per week is enough for most people, plus a lighter day with RDLs or variations — for muscle growth, muscle groups generally benefit from at least two stimuli per week [9]. On the deadlift you dose heavy pulling days carefully: among surveyed powerlifters, back complaints started disproportionately often during deadlifts [3].
Double overhand is the standard because it keeps both forearms pronated: in an analysis of YouTube videos, all distal biceps tendon ruptures with a mixed grip happened on the supinated side [5]. The hook grip, with the thumb trapped under the fingers, holds longest and hurts at first. Straps are for volume sets, when your grip gives out before your back does.
Not for learning. A belt raised the pressure inside the abdomen by roughly 25 to 40 percent in a small study [12] and helps on heavy sets, but the studies show stabilisation, not a reduction in injuries. Build your bracing without a belt and bring it in once you regularly pull close to your maximum.