What is an effective way to improve a horse's response to rein pressure?

Practicing lateral movements and flexibility exercises is an effective way to improve a horse's response to rein pressure because these activities help the horse develop mental and physical responsiveness. When a horse learns to move laterally, it becomes more aware of the subtle cues from the rider’s hands. This increased awareness leads to a better understanding of rein pressure, as the horse learns to associate the pressure with the need to yield or respond appropriately.

Engaging in these exercises encourages the horse to relax and soften in the frame, which enhances its overall communication with the rider. Lateral movements also promote the development of muscle strength and coordination, making the horse more supple and willing to respond to less forceful cues over time. As a result, the horse is likely to improve in its responsiveness to rein pressure during both practice and performance.

Other methods, such as using a stronger bit or shortening the reins, may potentially lead to more immediate changes in behavior but do not necessarily promote the understanding and communication that come from training. Waiting until the horse is tired can be counterproductive, as fatigue can lead to frustration and resistance in the horse, rather than improving its responsiveness.