Originally Posted by Eolith
Just something to consider: A vet once told me that using a little bit of canter (say two laps around a standard dressage arena) to limber up a horse and get their back moving was often very beneficial for warming up a horse. He even went so far as to say that canter was lower impact on the horse's joints than trot. Given that your training schedule holds off on any canter until after doing quite a bit of trot work, I'd like to know what you think of this Anebel.
On a fit horse, depending on the horse, then yes warm up in canter can be good.
On an unfit horse, the impact on the joints is equally stressful in trot and canter IMO. The moment of suspension is what it is. In canter after the moment of suspension, there is only one leg taking the impact. In trot there are two legs. For a horse with a forelimb issue, then yes a canter warm up when the horse is fit may be beneficial.
This however is only after extensive walking. I will walk a horse coming from the stall for 10-15 minutes and coming from the field for at least 5. At shows I give myself an extra 20 minutes to limber a horse up in the walk.