pelvis
Anatomical term for the bony structure connecting the spine to the lower limbs.
After giving birth, the pelvis tends to widen.
The shape of the pelvis varies slightly from person to person.
After childbirth, it's good to do exercises to tighten the pelvis.
Sitting with poor posture for long periods can cause pelvic misalignment.
These muscles play a role in supporting the pelvis.
骨盤 is the bone structure, whereas 骨盤帯 usually refers to a support belt or girdle worn around the pelvic area, especially during pregnancy.
Compound of 骨 (bone) and 盤 (tray, board), a straightforward kanji compound for the anatomical pelvis.