What partner pose requires both participants to keep their legs straight which increases hamstring flexibility?

The partner pose that requires both participants to keep their legs straight to increase hamstring flexibility is called the "Partner Forward Fold." In this pose, one partner stands while the other sits on the ground, and the standing partner leans forward, reaching for the seated partner's hands or shoulders. Both partners keep their legs straight, enhancing the stretch in the hamstrings and promoting flexibility. This pose encourages cooperation and alignment while stretching the posterior chain effectively.