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Sphinx Pose to Plank (Modified)

This drill flows between sphinx pose and a knees-down forearm plank — front body long in one position, core braced in the next. Alternating stretch and tension teaches the trunk to switch on and off deliberately, which makes it a clever warm-up piece before core or full-body sessions. 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	3 × 5–6 transitions, 3 s plank holds	60 s
Muscle	3 × 8–10 transitions	45–60 s
Endurance	2–3 × 12–15 transitions	45 s

Level — Beginner

Beginner flow — the knee-supported plank keeps every transition recoverable while the pattern is learned.

Proper form — 5 cues

Start in sphinx: forearms down, chest lifted, hips resting
Exhale, tuck the pelvis and brace the abs
Draw the hips up into a straight knee-supported plank line
Hold the plank for a breath, keeping elbows under shoulders
Lower the hips with control back into the sphinx opening

Breathing: Exhale rising into the plank, inhale melting back into sphinx.

The 3 mistakes Maddy corrects most

Sagging through the waist during the plank phase. Arriving in plank with a drooped middle rehearses exactly the position the transition is meant to train away. Fix: Lead the lift with the pelvis tucking first, so the abs are braced before the hips leave the floor.

Collapsing suddenly from plank back to the floor. Dropping skips the controlled lowering that loads the core through the transition — half the exercise vanishes. Fix: Lower on a slow two-count, letting the hips melt down while the chest stays proud into sphinx.

Elbows creeping forward with each cycle. A migrating base loads the shoulders progressively worse and shortens the plank line. Fix: Glance at the elbows every few reps and re-stack them under the shoulders before continuing.

Common questions

What is the point of moving between sphinx and plank?

The two positions are opposites: sphinx lengthens the front body while the core rests, and plank shortens and braces it. Cycling between them trains the abs to engage from a stretched position — a switch-on skill that static planks alone never practice — while doubling as a spine-friendly warm-up.

Is this suitable for complete beginners?

Yes — the knees-down plank keeps the load modest, and the sphinx phase is a rest built into every rep. If the transition feels chaotic at first, pause one full breath in each position before moving. The flow smooths out quickly once the pelvis-first lifting pattern clicks.

When should I do sphinx-to-plank in my workout?

It works best early: as the second or third movement of a warm-up, after some gentle whole-body movement. Two or three rounds prime the abs and wake up the front-body stretch before squats, push-ups or core circuits. It also stands alone as a morning mobility-plus-activation minute.

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