Phalakasana

Phalakasana, the plank, does not appear by this name in the Hatha Yoga Pradipika, Gheranda Samhita or Shiva Samhita; it is a modern addition, most familiar today as a transitional stage within the Sun Salutation sequences developed in the twentieth century.

• Builds isometric strength through the core, shoulders and wrists
• Trains the stabilising muscles of the spine that protect it in other postures
• Improves postural endurance carried over into everyday standing and sitting
• Serves as a transitional and strengthening link within Sun Salutation sequences
• Builds the wrist and shoulder tolerance needed for arm balances and Chaturanga Dandasana

1. Start on hands and knees, wrists under shoulders.
2. Step the feet back one at a time, coming onto the balls of the feet.
3. Draw the lower belly in and lengthen the tailbone toward the heels.
4. Press the floor away actively through the hands, spreading the fingers wide.
5. Keep the body in one straight line from the crown of the head to the heels, neither sagging nor piking the hips.
6. Keep the neck long, gaze slightly ahead of the hands.
7. Hold five to ten breaths, then release to the knees or move into the next posture.

• Letting the hips sag: overloads the lower back. Fix: draw the navel in and lengthen the tailbone down, not up.
• Piking the hips too high: removes the core challenge and shifts weight oddly onto the shoulders. Fix: aim for one flat line from heels to head, checked side-on in a mirror if possible.
• Splaying the elbows outward: strains the shoulders. Fix: hug the upper arms in gently, elbows pointing back rather than out.
• Holding the breath: increases tension and fatigues the body faster. Fix: keep a steady, even breath throughout the hold.

• Easier: lower the knees to the floor, keeping the line from knees to crown straight
• Easier: practise against a wall or an elevated surface to reduce the load on the shoulders
• Harder: lift one foot off the floor at a time to add a balance and oblique challenge
• Harder: lower halfway to Chaturanga Dandasana height and hold, building strength for the full transition

The plank is often used as a brief, active preparation that gathers uddiyana bandha before a stronger effort, the drawn-in belly stabilising the spine and lending the pose its quality of contained, focused effort. As a transitional posture within Sun Salutations, it is typically paired with a held or suspended breath, a short pause between the inhale of upward movement and the exhale into Chaturanga.

Holding a straight-line plank is primarily a test of isometric core, shoulder and wrist endurance rather than a flexibility posture, and the usual failure point is the low back sagging once the deep core muscles fatigue before the arms do. Shorter, well-aligned holds repeated several times tend to build the stabilising strength more safely than one long hold pushed into a collapsing spine.