This photo is rather old, but still applies to my training techniques. In this photo I am asking the horse to carry himself while lifting his inside shoulder at the canter.
Background, this horse was previously a ranch horse and unfortunately came thinking collection was something he could avoid and that running was often the answer. Now he is calmer, used for sorting competitions, trail riding and enjoying his life!
This horse BENEFITED greatly from groundwork! It allowed him to have great trust in humans again because his experiences were clearly not always the best.