The Arm Swing Advantage

Shelby Trained

Published on: 24/02/2026

Arm swing plays a critical role in vertical jump height, sprint speed, and total-body coordination. This post explains how upper-body power improves athletic performance—and how simple arm-drive training can boost explosiveness and transfer to sport.

Exercise

The Upper-Body Engine

Shelby Trained

Published on: 21/01/2026

Upper-body strength plays a major role in speed, jumping, and overall athletic efficiency. This post explains how strong, well-controlled shoulders improve movement quality—and how simple training choices can boost performance and long-term durability.

Exercise