Suitcase carry with one dumbbell: what the one-sided carry does for trunk and hips, how to walk cleanly and how to tell the weight is right.
The suitcase carry is a farmer’s walk with only one weight: you carry a dumbbell or kettlebell in one hand like a suitcase and walk upright without leaning toward the weighted side. The exercise trains you not to buckle sideways.
The honest answer to "Isn’t this just carrying?": yes, but with a payoff. In a study with healthy young participants, walking with one dumbbell (25.3 kg on average) activated the back extensors on both sides more than simply holding the same load while standing; on the weighted side the rectus and oblique abdominals also worked harder [1]. And in a second measurement with 26 adults who carried 15 to 20 % of their body weight in one hand, hip abductor activity on the side away from the weight was higher [2]. Anchor: these are the muscles on the outside of the hip that keep your pelvis from dropping as you walk.
None of this proves muscle growth or freedom from pain. It shows which muscles work.
Place the dumbbell next to your foot, hinge at the hips with a straight chest and pick it up. The back stays neutral, neither rounded nor overextended. Stand up fully before you start walking.
Milestone: 5 clean pick-up-and-put-down reps without side lean.
Stand upright, shoulders level, eyes straight ahead. The weight hangs beside your thigh, the free hand is relaxed. Feel the weighted side "resisting". This is where the effect shows: while holding in place, the back extensors work less than when walking with the same load [1].
Milestone: 3 × 30 seconds holding, shoulders stay level.
Walk with small, calm steps. The upper body stays upright, the pelvis stays level. The weight does not swing against your leg.
Milestone: 3 × 20 meters per side without the shoulders tilting.
When the 20 meters are clean 3 times, raise the weight in small steps or walk 30 to 40 meters. The studies used heavy loads (Ellestad: 25 kg; Graber: 15 to 20 % of body weight) [1][2], but these are measurement values, not a starting prescription.
Milestone: 3 × 30 meters per side with stable shoulders and a quiet pelvis.
How to track progress: You progress when you walk the same distance with more weight, or carry the same weight longer, without the shoulders tilting. Film yourself from the front and watch whether the shoulder line stays level. Note weight, distance and side, because the weaker side decides how far you can go. That is a rule of practice, not a study figure.
Where does it fit in training? The suitcase carry fits at the end of the session or as its own block after heavy pulling exercises. 2 to 4 passes per side is a common practice value. It does not replace a strength exercise but makes the side of your trunk more resilient for everything you carry or lift on one side.
Warm-up: Before the first pass, do a few hip hinges and trunk rotations plus 1 to 2 light passes with a fraction of the weight. On the light pass, check that the shoulders stay level before you get heavier. This is practical advice, not a study statement.
When carrying, picking the weight up is the riskiest moment. Lift as in any deadlift: load close to the body, back neutral. Heavy carries are demanding on the trunk: an analysis of strongman events found high spine loads in very heavy carrying events [3]. So progress in small steps.
Do not drop the dumbbell from a height. If you feel lower back pain while doing it, stop. This guide explains and motivates, it does not replace supervised training or a coach.
Imagine holding a full cup of water on your free side. Whoever walks so that nothing spills carries more upright automatically. A second trick: switch sides after half the distance and let go of the weight for a moment before the switch. This is a coaching image, not a study finding.
Back extensors and abdominals on both sides, plus the rectus and oblique abdominals on the weighted side [1]. On the side away from the weight, the lateral hip muscles work harder [2].
Not better, different: the one-sided grip loads the trunk’s side more. In strongman measurements, carrying events challenged different abilities than lifting events [3]. Both have a place.
Heavy enough that you stay upright for 20 to 30 meters. As a guide, one study used 15 to 20 % of body weight [2]. Rather start lighter.
Walking. One study found that walking with a dumbbell challenged the back extensors more than holding the same load while standing [1].
This cannot be derived from the studies. As a practice value: 2 to 3 passes per side on one or two days.
45-Degree Back Extension: Glutes, Hamstrings and Back