The Tennis Swing exercise works your back, arms, abs, butt and legs.
[MUSIC]. Well she starts standing tall with the weight palm facing up and she'll take a step forward with her right leg into a lunge. Good, that back heel is up. Crossing over with the dumbbell and standing back together. Again, other side. And then you just alternate sides. Good. Focusing on keep your core engaged, bracing your abdominals and keeping that front knee parallel. Excellent.