I was sharing the arena with another instructor a couple of weeks ago and she was using the diamond exercise. I’ve used it before to good effect, but it had fallen off my radar. However, I could think of a couple of clients and horses who would benefit from this exercise.
Best done in a 20x40m arena so you have fence markers to help focus the rider’s eye.
Instead of riding a 20m circle at A, imagine you are riding a 20m diamond. A is one corner, X is another, and there are two more just on the fence line, ten metres from the corner – sometimes a bit of tape is needed to mark this as they are four metres away from K and F.
Starting in walk, ride a straight line from point to point. Just before each corner collect the walk slightly, and then ensuring you are using the outside aids, push the outside shoulder around the turn. The horse will naturally slow and lose impulsion so ride positively out of the corner.
Riding a diamond improves a rider’s awareness of the outside aids and increases control over the outside shoulder as well as reducing their reliance on the inside rein. It highlights any crookedness in a horse, for example a horse will find it harder to move around a right rein corner if they are naturally a right banana. Moving around each corner will encourage the horse to take more weight onto their hindquarters and to bring the inside hindleg under their body more, all helping to strengthen the limbs and improve the quality of the gaits.
After riding a couple of diamonds, you should start to feel the hind legs stepping under more purposefully.
You can then progress to riding the exercise in trot and canter. I find that the biggest improvement is often seen in canter, where the inside hindleg becomes more active and improves the three beat rhythm. As the straightness improves the canter gains elevation and impulsion as the hindlegs work directly on the horse’s centre of gravity so the forehand lightens and the canter feels more effortless.
Some examples of horses and riders who have benefited from this exercise over the last week are as follows:
- One pony drifts through his right shoulder and his rider has a mobile right hand, so riding this exercise, particularly on the left rein, focused my rider on her wobbly outside rein and helped straighten her pony. The difference was particularly noticeable in the canter work.
- Another mare likes to push through the outside rein and triggers her rider to use the inside rein, so the diamonds were most beneficial to her at the very beginning of her warm up to establish the outside aids and ensure the mare is respecting her rider’s aids so that the rest of their workout is more productive as the mare is more focused on her rider.
- Another mare is very lazy with her hindquarters, and transitions have a limited effect on engaging her hindquarters when she begins a session by being behind the leg because she wriggles through the shoulder, so riding the diamonds help engage her hindquarters and maintain the straightness because in an attempt to evade using her hindquarters the mare jackknifes through the shoulder. Then we can use a combination of transitions and other school movements to help get the mare off the forehand.