It appears this study was done in India… Americanized yoga is generally not taught very well in this regard, teachers are more like aerobics teachers.
With correct breath, gaze, and pose (and ALWAYS mulah bandha), I’m not surprised they made this finding.
In addition to exercise, it’s almost like a moving lymph massage, and the poses do engage all kinds of interesting body bits in ways most people don’t move.
It looks as if others on HN have no feedback, but i also understand this isn’t really technology-related material.