![When Coach Christopher Sommer of GymnasticBodies began working with adults over a decade ago, he began t… | Core strength exercises, Strength workout, Plank workout When Coach Christopher Sommer of GymnasticBodies began working with adults over a decade ago, he began t… | Core strength exercises, Strength workout, Plank workout](https://i.pinimg.com/564x/78/e9/b1/78e9b10ce16a8f827e33ac209ef6e494.jpg)
When Coach Christopher Sommer of GymnasticBodies began working with adults over a decade ago, he began t… | Core strength exercises, Strength workout, Plank workout
![Dr. Mike T Nelson on Twitter: "Myself with Coach Sommer Awesome to talk with him!! #pfx14 http://t.co/xpca2OqzFu" Dr. Mike T Nelson on Twitter: "Myself with Coach Sommer Awesome to talk with him!! #pfx14 http://t.co/xpca2OqzFu"](https://pbs.twimg.com/media/BlCfQ5HCAAA-Sv4.jpg)
Dr. Mike T Nelson on Twitter: "Myself with Coach Sommer Awesome to talk with him!! #pfx14 http://t.co/xpca2OqzFu"
![Building the Gymnastic Body: The Science of Gymnastics Strength Training by Christopher Sommer (2008-05-03): Christopher Sommer: 9780982125304: Amazon.com: Books Building the Gymnastic Body: The Science of Gymnastics Strength Training by Christopher Sommer (2008-05-03): Christopher Sommer: 9780982125304: Amazon.com: Books](https://images-na.ssl-images-amazon.com/images/I/512BK5aighL._SX258_BO1,204,203,200_.jpg)