Rider position and balance directly affect horse welfare by influencing the biomechanical load placed on the horse's back and limbs.
The rider is a significant welfare variable in every ridden horse interaction. An unbalanced, tense, or unfit rider creates a performance and welfare problem regardless of the quality of the horse's training or management. Many horses labelled as difficult or resistant are responding to rider-created discomfort. Rider education about position and the biomechanical impact of asymmetry on the horse is a welfare intervention with immediate measurable effects.