Keeping an old horse sound requires a good knowledge of your horse. Indeed, you should be aware of the scale of sensitivity of your horse. You should adapt some cure to support daily your horse for sport as an example : or cartilage cure. You will also choose areas of jumping depending on previous lesions that he probably get (for example you will avoid deep sand ground if he had repetitive tendinitis). There are small obvious tips that we forget easily. You should also increase recovery time between shows although keeping your horse with a daily activity. Taking time to warm your horse with physiotherapy (massage, stretching..) could also help your horse for exercises.