The single-leg single-arm scaption is a shoulder raise performed with one light dumbbell in the plane of the scapula while you stand on the opposite leg. Scaption means the arm travels about 30 to 45 degrees out from straight ahead, the line the shoulder blade actually sits on, so the humerus clears the joint without the pinch a pure lateral raise can cause. Working one arm at a time makes the raise a load the standing hip must resist, which is why the leg matters. Coaches use it as shoulder prep or a light accessory.
What Muscles Does the Single-Leg Single-Arm Scaption Work?
- Primary: Anterior and lateral deltoid
- Secondary: Supraspinatus, serratus anterior, upper trapezius
- Tertiary: Gluteus medius (side glute), obliques, peroneals of the standing ankle
How Do You Set Up for the Single-Leg Single-Arm Scaption?
Take one light dumbbell in your right hand with the palm facing your thigh. Stand tall with the feet under the hips, then shift your weight onto the left foot and lift the right foot just clear of the floor, knee soft. Square the hips and ribs, brace the abs and let the loaded arm hang. Turn the thumb slightly out so the palm faces halfway between your leg and the front of your body.
How Do You Perform the Single-Leg Single-Arm Scaption?
- Find the standing leg by spreading the toes and letting the balance settle before the arm moves.
- Raise the dumbbell forward and out along a line about 30 to 45 degrees from straight ahead, thumb leading.
- Stop at shoulder height with the arm nearly straight and the wrist level with the eye line, the elbow soft.
- Hold for a count while the standing hip keeps the pelvis level and the ribs stay down.
- Lower on the same diagonal for three counts until the dumbbell is back beside the thigh.
- Reset the balance and the hips before the next rep, and switch sides after the set.
What Are the Key Form Cues?
- Raise between the lines: picture a clock face on the floor and lift down the ten or two o'clock spoke, not straight ahead and not out to the side.
- Stand on a tripod: press the big toe, little toe and heel of the standing foot into the floor to stop the ankle rolling.
- Lead with the thumb so the shoulder stays outwardly rotated through the top.
- Keep the free hip level with the loaded one rather than letting it hike.
- Keep the neck long; the shoulder should rise no further than the arm.
What Are the Most Common Mistakes?
- Picking a dumbbell that needs a body swing: the trunk leans away and the hip gives up the balance, so drop to a weight you can raise with the pelvis level.
- Drifting the arm out to a true lateral raise: at ninety degrees from the front the shoulder loses the scapular plane, which is where impingement pinches the supraspinatus tendon, so hold the diagonal.
- Raising above shoulder height: past that the shoulder blade takes over and the delt unloads.
- Standing on a locked knee: the joint jams and the ankle stops working, so keep a soft bend.
- Rushing the lowering phase: the arm drops on the way back down and half the work is lost.
What Are the Best Single-Leg Single-Arm Scaption Variations?
- Two-leg single-arm scaption: both feet down, the regression when balance limits the load.
- Both-arm scaption: two dumbbells at once, more total work but no anti-rotation demand.
- Incline Dumbbell V Raise: the same plane taken lying on a bench, so balance is removed.
- Cable scaption: a low pulley behind the hip keeps tension on at the bottom.
- Single-leg scaption on a foam pad: an unstable surface raises the ankle and hip demand.
How Do You Progress the Single-Leg Single-Arm Scaption?
- Add 5 pounds to the hand once you finish 15 clean reps per side with the hips level.
- Build from 8 reps up to 15 before the next dumbbell.
- Add a set at a time to a ceiling of 3 per side.
- Hold two counts at the top, or close your eyes on the standing leg, when load is already high enough.
How Should You Program the Single-Leg Single-Arm Scaption?
Use it as a warm-up before pressing or as a lateshoulderaccessory, never as the heavy movement of the session. Train it 2 to 3 times per week for 2 to 3 sets of 8 to 15 reps per side, resting 30 to 60 seconds between sets. It pairs with rows and face pulls, which train the same shoulder blade position from behind.
