Load

The load does two jobs at once. It stores elastic energy in the muscles and tendons of the torso, hips, and shoulders. It also sets the hands in a strong, repeatable launch position from which the swing can begin efficiently. A complete load gathers weight onto the back leg, with about 60–65% of body weight on the back foot at the load's peak. It also turns the front shoulder in slightly and coils the hips against the resistance of the front side. This works like a spring being compressed. The farther back and more fully the body coils, the more energy is available to release forward through contact.

Timing of the load is as important as its mechanics. The load should begin from the pitcher's release cue. That cue is usually the pitcher's hands breaking from the set position, or a rhythm cue from the pitcher's wind-up. Loading too late means starting the gather after the pitch is more than halfway to the plate. That leaves the hitter rushed. The hands never reach their full launch position before they must fire, and contact is late and weak, usually pushed to the opposite field. Loading too early means gathering before the pitcher releases. That stalls the coiled energy and makes the hitter commit the weight forward before the pitch arrives. The result is a lunge that drains the rotational energy before contact.

The load also sets up hip-shoulder separation. That is the offset between where the hips point and where the shoulders point at the beginning of the swing. A proper load keeps the shoulder coiled inward while letting the hips begin to open. This separation is the tension that drives rotational power from the ground up. Hitters who do not fully load show reduced separation. That leads to less hip rotation and forces the arms to compensate with extra effort. Most hitting coaches address timing and power problems at the load before touching the swing path. That is because correcting when and how the body loads carries improvements through the entire swing sequence.