What are the muscles you use while doing the elementary crawl?

The elementary crawl primarily engages the shoulder muscles, including the deltoids and rotator cuff, as well as the muscles in the back, such as the latissimus dorsi and trapezius. The core muscles, including the rectus abdominis and obliques, are also activated to stabilize the body during movement. Additionally, the hip flexors and quadriceps play a significant role in leg movement while crawling. Overall, it provides a full-body workout by coordinating various muscle groups.