Hip Rotation
Also known as: hip turn, lead hip clearance
Hip rotation is the turning of the hips toward the pitcher during the swing — the single biggest source of rotational power in a slow-pitch hitter.
The hips initiate the kinetic chain: they rotate first, pulling the torso, shoulders, arms, and finally the barrel through the zone. Proper hip rotation requires the front knee to firm up and the lead hip to drive back and around. Common faults include opening the hips too early (spinning out before contact) or not rotating at all (sliding the hips forward without turning). In slow pitch, where there is no need to react in milliseconds, hitters can train a full, deliberate hip turn on every repetition.
Example
A coach tells the hitter to "turn the belt buckle at the pitcher" on contact; the hitter adds 8 mph of exit velocity on the next swing.
Related terms
- Rotational PowerRotational power is the energy generated by rotating the hips and torso into the swing, transferring ground-force and core energy through the arms and into the barrel.
- Weight ShiftWeight shift is the deliberate transfer of body weight from the back foot during the load to the front foot during the swing, generating forward momentum that adds power at contact.
- Back-Side MechanicsBack-side mechanics refer to how the trail hip, knee, and foot fire through the swing — the "engine" side that drives rotational power from the ground up through the barrel.
- Hip-Shoulder SeparationHip-shoulder separation is the difference in rotation between the hips and the shoulders during the swing. The hips fire first while the shoulders stay back, creating stored torque that whips the bat through.
Related guides & benchmarks
Put this into your swing
SwingVantage can spot this in your own swing — free to start.