By Kathy Smith 

A recent study confirms that tightening a horse’s noseband may do more than change appearance or control the mouth — it may also affect the horse’s movement. 

Researchers from Anglia Ruskin University and Animalweb Ltd. found that tighter nosebands produced sharply higher pressures on the horse’s face and were linked to shorter stride length at trot, raising fresh concerns about both welfare and performance in ridden horses. 

The study, published in the Journal of Equine Veterinary Science, examined eight healthy riding school horses and compared three noseband settings using the International Society for Equitation Science, or ISES, taper gauge: a two-finger fit, a one-finger fit, and a zero-finger fit.

Noseband fastened to two-finger space (left) and one-finger space (right) using the ISES Taper Gauge. 

The findings were stark. Average peak pressure under the noseband rose from 26.4 kPa at the two-finger setting to 40.9 kPa at one finger, then jumped to 115.8 kPa at zero fingers. That represents a 54 percent increase from two fingers to one finger, and a 338 percent increase from two fingers to zero fingers. 

At the same time, stride length fell as the noseband tightened. Researchers found a statistically significant negative correlation between noseband pressure and stride length, meaning that as pressure increased, stride length consistently declined. 

Related: Looking Beyond "Problem Horses"

Horses averaged a stride length of 2.14 metres at the two-finger setting, 2.00 metres at one finger, and 1.90 metres at zero fingers. That amounted to a mean decrease of 6.2 percent at one finger compared with two fingers, and an 11.2 percent decrease at zero fingers. 

The authors say the study is the first to measure sub-noseband pressure and gait changes at the same time while using the standardized ISES taper gauge. Their conclusion was direct: the tighter the noseband, the greater the pressure on the nasal area, and the more likely it is to interfere with the horse’s stride. 

Noseband tightness has become an increasingly contentious issue in equestrian sport. While nosebands are commonly tightened to keep the mouth closed and improve control or presentation, the study notes that they are not considered essential pieces of tack. Previous concerns have linked over-tight nosebands to stress responses, reduced blood flow, facial bone changes, oral injuries and nerve damage. 

This research adds gait mechanics to that list of possible consequences. 

To conduct the trial, the horses were warmed up and then led in-hand in trot through a standardized testing setup. Motion capture technology was used to track limb and back movement, while pressure sensors placed under the noseband recorded peak pressure over the nasal bone. Each horse was tested under all three conditions in randomized order. 

Related: The Science of Tack and Training Aids

A pressure-sensor mat was used under the noseband and attached to a connector, which in turn was attached to the left cheekpiece and connected to the wireless transmitter carried by the handler. 

Not every movement variable changed. The study found no statistically significant differences in spinal motion or hindlimb joint angles across the three noseband settings. But the reduction in stride length was clear enough for the researchers to call it biologically meaningful, especially in athletic horses where even small changes in movement can affect performance. 

The authors suggest several possible explanations. Tight nosebands may restrict structures involved in jaw and head function, alter posture through the cranio-cervico-mandibular system, or affect nerves and fascial chains linked to balance and locomotion. While those mechanisms need further investigation, the practical outcome in this study was straightforward: horses moved with shorter strides when the noseband was tightened. 

The researchers say their results support the ISES recommendation that nosebands should not be tightened beyond a two-finger space. In their view, tighter settings risk compromising both welfare and way of going. 

For an industry under growing pressure to demonstrate better horsemanship, the message is likely to resonate: a tighter noseband may not create a better performance, and it could come at a cost to the horse. 

Read the full research paper HERE.

Related: FEI Implements Standardized Noseband Tightness Rules Across Disciplines

Related: Would Your Horse’s Noseband Pass the Test?

More by Kathy Smith

Main Photo: iStock/LottaVess