This is a thin book, and a quick read though the anatomical language might be daunting for the layman. The exercises in this book are absolutely biomechanically correct, and are quite simple when you boil it down to its basics. 

 

The authors have painstakingly described a series of physical therapy exercises on the lunge line which will straighten the horse, and with proper application, diligence, and time will change your horse's posture to a more correct way of going.

 

I implemented the lunge line exercises with my own horse and saw immediate results which translated seamlessly to under-saddle work.

 

The authors describe eliminating lamenesses with these exercises.  The types of lamenesses that they are describing are attributed to asymetrical over-loading of a limb; rein lameness would be an example -- not a torn suspensory or other tissue injury.

 

I think nearly every sound horse could benefit from this work.  Care needs to be taken with horses who have a history of injuries or issues that would prevent them from working on small circles even for limited periods.  If your horse has a history of lower limb issues, please consult your veterinarian before proceding.

There is also a companion video available which demonstrates the exercises described in this book, and it is very helpful.