A yin sequence that respects 70% — not 100%

Yin in its modern form came out of Paul Grilley's teaching in the late 1980s, drawing on his anatomy work, Hiroshi Motoyama's meridian theory, and Paulie Zink's Taoist yoga. Sarah Powers refined it into the format most studios now teach — passive, floor-based postures held for 3-5 minutes, targeting fascia and joint capsules rather than muscle. The defining instruction in yin is not "deeper." It is "find your edge, then back off."

Grilley's rule of thumb, and the one I cue every class: target 70% of your full range, never 100%. The reasoning is biomechanical, not philosophical. Connective tissue plastically deforms under sustained load when the muscle around it stays passive. If a student grips into the stretch to push deeper, the muscle takes the load and the fascia goes home unchanged. Less effort, longer time, more result — the opposite of the yang training most people bring to the mat.

This template runs 75 minutes with eight long holds. The arc moves from the lower body up to the spine and out through the shoulders, mirroring the kidney-bladder-liver-gallbladder meridian sequence that the Powers lineage favours. You can teach it without ever saying the word meridian — what matters is the order of joints loaded, not the Chinese medicine vocabulary. Keep the room warm, keep the lights low, keep your voice slow. Yin is the one format where reading aloud from a script is sometimes the right call.

Who this sequence is for

Studio classes labeled yin, deep stretch, slow flow, or restorative-yin hybrids. Athletes who do other movement six days a week and need the connective-tissue work. Students with stress they cannot meditate their way out of. Skip yin for pregnant students past the first trimester (passive deep hip work is contraindicated by most prenatal protocols), for anyone in acute joint inflammation, for hypermobile students who already access more range than their joints can stabilise, and for anyone with a recent disc injury — sphinx and saddle in particular need to be modified or skipped.

How to teach (or practice) it

The load-bearing pieces in yin are the hold time and the props. Three minutes is the floor; below that you are doing slow hatha, not yin. Five minutes is the ceiling for most mixed-level rooms — beyond that students start fighting the posture rather than receiving it. Set a timer. Do not eyeball it. Your sense of time stretches and shrinks during long holds and you will inevitably short the second side if you don't track it.

Props are the pose. Every student in butterfly should have a bolster in front of them whether they think they need it or not. Folded blankets under the knees in dragon, a block under the bottom hip in twisted root — set the room up before students arrive so they don't have to make a decision about whether to "deserve" the support.

Cue the exit, not just the entry. Coming out of a five-minute saddle without a transition phase will send students to a chiropractor. Always: gentle counter-pose, 30-60 seconds of quiet between sides, no rushing into the next shape. The middle of yin is silent; the edges (entries and exits) are where you talk.

Coaching notes

The trap unique to yin is the holding time itself. Three to five minutes is long enough that the body's first response — to wriggle, to deepen, to escape — has to pass before the work begins. Your job is to coach through that first 60 seconds, then go quiet for the rest. Phrases that help: "if your edge has moved, you can soften toward it; you don't need to chase it." Phrases that don't: "go deeper," "push past the resistance."

Watch for hypermobile students. In a yang class they look impressive; in a yin class they are the highest-risk people in the room. A naturally bendy student in a 5-minute pigeon will end up loading the joint capsule at end range for far too long. Cue them out: "if you're already at the floor with no sensation, prop the front hip higher to create stretch elsewhere."

Don't pair yin with strong music. The format works through proprioceptive stillness — anything with a beat above 70 BPM pulls students out of interoception. Drones, singing bowls, or silence. And cover students with a blanket at the start, not the end — body temperature drops fast during long passive holds.