Straight Arms & Body Position: Rock Climbing technique, drills and fixes

Straight arms let your skeleton take more of the strain, so you can rest, clip and plan without burning out your arm muscles. The partner habit is body position: twist a hip toward the wall so your weight sits over your feet, and push up with your legs instead of hauling with your arms. Straight arms are a tool, not a rule. Many moves need a bent arm, and on slabs and vertical walls standing tall on your feet can be easier than sinking onto a straight arm. The app reads how straight your elbows are at rests; it can only roughly judge how close your hips are to the wall, and it cannot see grip force.

Hang on straight arms

Look for spots where straight arms pay off: resting points, clipping points, a good handhold, and good footholds below it. Without decent feet, a straight arm just hangs your weight off your fingers.

a good hold, good feet, a place to pause.

When you pause to rest, plan or clip, let the arm straighten and sag your weight down onto it instead of holding yourself in on a bent arm. Bend it only when you are actually making a move, then straighten again as soon as you can.

hanging from the arm, not curling it.

Keep the arm straight but not slack: keep the shoulder lightly switched on rather than dropping your whole weight into the elbow and shoulder joints.

long arm, shoulder still active.

While you hang on one straight arm, shake out the other for a few moments, then swap if the holds allow. Rest where it is comfortable, not in the middle of the hard section.

one arm holding, the other loose.

Hips in, weight over your feet

Don't face the wall square. Twist one hip toward the wall; the twist brings your centre of gravity closer to the wall and more over the foot you are pushing on.

side-on to the wall, weight settling into one foot.

If the twist tips you off balance, flag: hold your free leg out as a counterweight so your weight stays over the pushing leg. On steeper ground, drop the rear knee (a drop knee) to pull the hips in and gain reach.

balanced on one foot, the other leg steadying you.

Aim for weight over your feet, not hips pressed flat to the wall. In one lab study, elite climbers actually held their centre of mass slightly farther from the wall than non-climbers, so 'closer' is not always better.

feet loaded, body free to move.

Push with your legs

To move up, bend your legs and push, using a small twist of the torso and hips, so the legs make the upward movement and the straight arm mostly guides you.

legs driving, hands steering.

Match the position to the wall angle. On slabs and vertical walls, standing tall on your feet with the hand close in puts more weight through your legs than sinking low on a straight arm. On overhangs, climbers tend to use the straight arm with bent legs and hips turned in.

on vertical ground, tall on the feet; on steep ground, long on the arm.

Stay safe

Warm up before you climb hard: something to raise your pulse, shoulder and hip mobility, then easy climbing.

warm, loose, then climbing.

In bouldering falls the ankle is the most commonly injured spot, and most falls are unplanned. Practise falling from low down: land feet first, keep your arms in (crossed in front) rather than reaching out to catch yourself, and roll onto your back.

soft landing, arms tucked.

Small, crimpy holds load the finger pulleys hard, and a sudden jolt (like a foot slipping) can injure them. Keep your feet on, build up to small holds gradually, and stop climbing if a finger hurts sharply or you feel a pop.

feet holding the weight, fingers not shock-loaded.

Feel it

Good straight-arm climbing feels like hanging off the arm with the shoulder still active, weight in your feet, and your hips turned so you're side-on to the wall. You bend an arm to make a move, then straighten again straight away. You should get noticeably less pumped. Holding straight arms is harder than it sounds at first, and you'll notice you start moving by turning and swinging from the shoulders.

Fix-its

Your arms stay bent while you rest, plan or clip Sag onto a straight arm whenever you pause. Bend only to make the move, then straighten again.
Your hips are square to the wall Turn one hip in so your weight sits over the pushing foot, and flag the free leg if you start to barn-door.
You pull up with your arms Bend your legs and push up with a small hip and torso twist; let the arm guide.
Your straight arm is slack and your shoulder sags into the joint Keep the arm long but the shoulder lightly engaged; don't hang purely on the elbow and shoulder joints.
You sink low on a straight arm on a vertical wall with a good foothold right there Stand up on the foot. On slab and vertical ground, standing tall puts more weight through your legs.

Drill

Any-feet exploration: on a vertical wall, use one colour of handholds but any footholds you like, and try different hip positions to find the most stable, least strenuous one.
Twist-and-flag traverse: traverse low on a vertical wall, turning a hip in for each reach and flagging the free leg when you need balance.
Two-stance comparison: on easy vertical ground, hold a stand-tall position (legs straight, hand near shoulder) for 10 seconds, then a sink-low position (legs bent, arm straight) for 10 seconds. Notice which one needs less grip.
Straight-arm repeat: pick a route you've already climbed that left you pumped. Climb it without bending your arms, using hip turns and leg pushes, and compare the pump.
Film from behind at a rest point and check your elbows are straight while you pause.

Sources

Last checked 2026-10-26.