Hamstring exercises with no equipment

Why does the hinge work and the curl not?

Because in a hinge you have something to lift. Stand on one leg and raise the other behind you, and your torso and that straight leg swing far out past the hip, with the hamstrings of the standing leg holding all of it. That is real load, available without a single kilogram of equipment, and it is why the single-leg deadlift is the number one movement on this page.

On knee flexion the trick stops working. Whatever you do with body position, the only thing the knee lifts is your own shin and foot. A shin does not get heavier because you added reps, so lying curls and alternating standing curls stay light by definition. They are not useless, but calling them strength work is a stretch.

There is one way out and the catalog knows it. Hook your feet under something fixed and the knee starts bending against the mass of your whole torso, which makes the movement incomparably harder. On this list that is the assisted reverse leg curl on a cable, where a bar held behind your neck takes part of the weight off. The muscle stays the same; what changes is what sits on the other side of the knee.

What are butt kicks and toe-touches doing here?

Because an exercise lands under a muscle group by what moves in it, not by how much it weighs. Butt kicks are running in place with the heel finishing high, so the back of the thigh works on every step, just for a fraction of a second and against nothing. The variations differ in tempo and in what the arms do, not in load on the legs.

As a warm-up before legs that works well, because it rehearses the exact movement you are about to load. The cues say what it is about: light, quick, torso upright. Once you start leaning forward to get the heel higher, the movement stops being about the knee.

The rest of the list is stretching: the toe-touch, the standing hamstring stretch and downward dog with alternating knee drives. They all lengthen the back of the thigh and none of them load it. A separate case is the entries that need a station despite the label: the lying leg curl on a machine and the assisted reverse curl already mentioned. If you have access to those, they, not the rest of this page, are the closest thing here to real load on the hamstrings.