The most ideal position to promote a healthy development of baby's spine and hip is the “frog leg position", where baby's legs are spread and parallel to the floor, this allows their thigh bones to rest securely inside the hip socket.
ERGONOMIC FORWARD FACING
At 6 months, babies start to develop hand eye coordinations and an understanding of space and distance and is a great time to turn your baby forward facing for some fun exploring
"with a built in hip seat design, a baby is sitting instead of dangling, this changes the center of gravity and takes the load off of the spinal muscles. It also allows the baby to sit back and lean against the parent so back muscles are at rest and spine is not being pulled forward" - Dr P. Chen