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Shoulder Taps

Shoulder taps start from a high plank and lift one hand to touch the opposite shoulder while the rest of the body refuses to move. The exercise looks like an arm drill but is really anti-rotation core training — it teaches your trunk to stay rigid while the base of support keeps changing. Coached by Maddy (NASM-CPT) — these are the exact form cues he gives on every client's first week.

Muscles worked

Abs · rectus abdominis Deep core · transverse abdominis Obliques Lower back · erector spinae Front shoulders · anterior deltoid

Sets & reps by goal

Goal	Sets × Reps	Rest
Strength	4 × 6–10 taps per side, slow	90 s
Muscle	3–4 × 10–14 taps per side	60–90 s
Endurance	3 × 18–27 taps per side	45–60 s

Rep ranges per Helms 2014 · Schoenfeld 2016.

Level — Beginner

Beginner-rated, but keeping the hips genuinely still is harder than it looks — stance width is your difficulty dial.

Proper form — 5 cues

Set a high plank with hands under shoulders, fingers spread
Walk the feet slightly wider than hip-width for a stable base
Shift weight subtly, then lift one hand to the opposite shoulder
Keep the hips dead level — imagine a full cup of water on your lower back
Place the hand back silently and alternate sides at an even tempo

Breathing: Exhale briefly on each tap, inhale as the hand returns to the floor.

The 3 mistakes Maddy corrects most

Hips swinging side to side with every tap. The rocking means the obliques are not controlling rotation — the drill's entire purpose is being skipped. Fix: Widen the feet, slow the tempo to one tap per two seconds, and make stillness the goal rather than tap count.

Piking the hips toward the ceiling. A raised backside shortens the lever and turns the plank into a rest position. Fix: Re-set a straight line from head to heels before each set; film yourself from the side once to calibrate.

Sagging through the supporting shoulder. Collapsing into the joint instead of pushing the floor away loads passive structures and dulls the core work. Fix: Press the supporting hand hard into the ground so the shoulder blade stays wrapped around the ribs.

Common questions

Are shoulder taps for abs or shoulders?

Primarily abs. The deep trunk muscles and obliques work overtime to stop your torso twisting each time a hand leaves the floor, while the shoulders and arms hold you up. Your delts certainly feel the support work, but the adaptation you are chasing is a trunk that resists rotation under shifting load.

Can beginners do shoulder taps?

Yes, with the right entry point. If the hips swing on every rep, start with the knees-down version or elevate the hands on a bench — both shrink the rotation force to a level you can actually control. Clean slow taps from an easier position beat sloppy fast ones from the floor.

How many shoulder taps should I do?

Count quality, not totals. Three or four sets of ten to fourteen controlled taps per side, hips level throughout, is a solid working dose for most people. When a set stays effortless and still, progress by slowing the tempo or narrowing your foot stance rather than simply adding more taps.

Related exercises

Easier: Shoulder Taps (Modified)

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