[1] Natural horsemanship practitioners often describe the approach as being a radical departure from "traditional" techniques, which are often portrayed as being based in the use of unnecessary force.
[6] High-profile practitioners of natural horsemanship such as Monty Roberts and Pat Parelli market their methods and equipment extensively through books, television appearances, live shows and other media.
[7] Natural horsemanship promoters face criticism that their techniques are not "new" and are classical concepts that are simply renamed or repackaged in order to be able to sell products and merchandise.
[9] In Europe a number of variations are practiced that developed independently of the American model, influenced by Spanish or Hungarian horsemanship traditions as well as the teachings of Classical dressage.
[24] Some natural horsemanship advocates acknowledge that there are "traditional" techniques that can be used in a humane manner, even suggesting that multiple styles can be used together in a complementary fashion.
Most natural horsemanship practitioners advocate use of a type of rope halter that has a thinner noseband and heavy heel knot reminiscent of a bosal style hackamore for groundwork,[27] and, for some, riding.
All practitioners emphasize that communication should be possible through light or minimal rein contact with the horse's mouth, encouraging primary use of weight and leg aids.
One practitioner has suggested that use of a patented design of bitless bridle can create more effective control of the horse, and solve other problems related to bitting.
[30] However, the benefits of a bitless bridle have been questioned in light of recent studies showing that the cross-under design puts significant pressure on the poll and under the chin, while soft tissues such as the tongue are actually better suited to handling pressure from a rider's hands than hard tissues like the nose bone and the palate, though bitless designs may still be suitable for horses with mouth injuries.
[32][33] A 2012 study, however, questioned some types of round pen training on the grounds that pressure-release methods do not enhance horse-human interaction (as remote-controlled cars were used to elicit similar responses) but actually control the horse through fear and for that reason may be less humane than originally thought.
[36] A related concern is that practitioners rename common pieces of horse equipment and then sell their branded versions for premium prices.
[38] Practitioners counter that the equipment that they sell, such as rigid sticks and yachting-braid rope, have distinct characteristics that lend themselves to natural horsemanship training.
[40] Overuse of negative reinforcement in any training method to increase rates of desired behaviors can produce anxiety and stress in the horse until the aversive stimulus or "pressure" is released.