Complex sentence: Her midsection is held in the air by her hands as her elbows provide stability by forming a tripod of ground contacts where the neck meets the shoulders and the two elbows are the only thing touching the ground.
Split into simpler sentences: Her midsection is held in the air by her hands as her elbows provide stability by forming a tripod of ground contacts. Where the neck meets the shoulders and the two elbows are the only thing touching the ground.