Complex sentence: For forward-facing jumpseats, the position is exactly the same but with the feet behind the knees, with some airlines requiring flight attendants to tuck their chin in to their chest ("bow to the captain") to reduce the likelihood of whiplash injuries.
Split into simpler sentences: For forward-facing jumpseats, the position is the same but with the feet behind the knees. Some airlines also require flight attendants to tuck their chin in to their chest ("bow to the captain") to reduce the likelihood of whiplash injuries.