Observation as the primary diagnostic tool
Observation is a central skill in therapeutic Iyengar yoga. You can see a lot just by someone standing — the position of the pelvis, whether there is a rotation of the spine, how the weight is distributed between the feet, whether one hip is higher than the other. These visible asymmetries often point toward the underlying cause of the pain.
If discs are out of alignment or if there is a rotation of the spine, these patterns are often visible in standing. A disc problem typically produces a consistent pattern of compensation — the body organizes itself to protect the compromised disc, often by shifting weight, rotating the pelvis, or altering the curve of the lumbar spine. Muscle tension, by contrast, is often more variable and responsive to warmth, movement, and time of day.
"The spine must be observed in its entirety — from the sacrum to the occiput — before any therapeutic intervention is made." — Lois Steinberg, Yoga for the Lower Back
Adho Mukha Svanasana and the rope wall as assessment tools
Adho Mukha Svanasana (Downward Facing Dog) on the rope wall is particularly useful for seeing the spine and pelvic rotation clearly. In this pose, the spine is in a lengthened, partially inverted position that makes rotation and asymmetry visible. The rope wall allows the student to hang more freely, which removes the compensatory patterns that standing upright often masks.
When the student is in Adho Mukha Svanasana with the ropes supporting the pelvis, the therapist can observe whether the spine is tracking straight or rotating, whether one side of the back is more prominent than the other, and whether the pelvis is level. This information guides the therapeutic sequence.
Discernment: tracing the source
Muscle tension is often expressed by the client — they feel tightness, soreness, or a pulling sensation. But there is discernment required in tracing where the discomfort or misalignment is actually coming from. A tight piriformis, for example, may be a secondary response to a disc issue at L4-L5. Treating the piriformis alone will not resolve the underlying problem. The therapeutic sequence must address the root cause, not just the reported symptom.