"All of the elite swimmers of the world rotate their bodies along the long-axis, the axis that their body is moving down the pool, while swimming freestyle and backstroke. They don’t just rotate a little bit. They rotate a lot." Gary Hall, Sr.

Swim around your long-axis
Keep your head and neck on your long-axis as you swim, keep your head and neck on your long-axis as you breathe, set the catch and hold water close to your long-axis, recover close to your long-axis, but, most importantly, rotate your hips quickly around your long-axis. Freestyle and backstroke are rotation strokes, hip-driven rotation strokes, around your long-axis.
She has an intimate awareness of her long-axis
Yes, a figure skater rotates far more than a swimmer, 360°+ versus 180° for a swimmer, but the idea is the same: Rotate around your long-axis.

Freestyle and backstroke are long-axis rotation strokes
Rotate your hips 180°
