Sarah is getting very strong! On Tuesday, she learned how to do hyperextensions which are great for strengthening the lower back. When most people think of the core, they think of the abdominal muscles only. But the muscles of the lower back help to comprise the core as well, and it is very important to make sure that these muscles are strong.
She is doing kettlebell squats instead of squats using the ball. That shows how strong she is getting!
Sarah also learned how to do dips on Tuesday, which strengthen the triceps. It is a great body-weight exercise.