KER ClockIt Sport uses an on-board heart-rate monitor and Bluetooth technology to record heart rate, speed, distance, and altitude, allowing researchers to accurately assess work intensity in performance horses as they’re actively training and competing.

KER ClockItâ„¢ Sport: Changing the Face of Equine Fitness

In a study that lasted from February to mid-April, over 2,000 exercise sessions were recorded with KER ClockIt Sport using more than 100 event horses based primarily in Ocala, Aiken, and Southern Pines. A concentrated study group consisted of 34 horses at different levels, all of which were measured daily for six to eight weeks (five Novice, five Training, five Preliminary, eight Intermediate, and eleven Advanced). Included in this study were horses that competed in the Advanced, CIC2*, and CIC3* divisions of a prestigious spring competition. See the general summary below. Click below to download more detailed reports of these findings.

Intensity and Duration of Exercise During Early-Season Training and Competition in Three-Day Event Horses


In the lead-up to the 1996 Olympic Games held in Atlanta, Georgia, numerous studies were conducted to measure the intensity of exercise during the cross-country phase of longformat three-day events. These studies were focused on the effect of heat and humidity during competition. In each of these studies, heart rate (HR), and plasma lactate were used as indices of exercise intensity.

Three-day eventers in the United States typically end their competition season in October or November. At that point most horses are taken out of training and allowed to rest throughout the winter. Many eventers based in the eastern United States migrate to Florida, North Carolina, or South Carolina in January where they resume training for the upcoming season. These horses remain there in training until early to mid-April when most return north to enter competitions throughout the spring and summer. During February, March, and early April, these horses compete in three-day events throughout the Southeast.

Exercise intensity has not been previously quantified during these early-season shortformat three-day competitions. Therefore, Kentucky Equine Research conducted a study to measure the intensity of exercise in horses competing at several levels in horse trials and three-day events during the early stages of the 2015 eventing season.

Download Part One: Competition
Download Part Two: Training