1. Introduction
The performance of equine athletes depends on the optimal combination of good breeding, husbandry, rearing, training, preparation and horsemanship of their handlers, riders and trainers. The equipment used to train, restrain, steer and decelerate horses varies across disciplines, and has been designed for almost every part of a horse’s body. The greatest attention has been paid, however, to the horse’s head. Nosebands are one such piece of equipment used in many equestrian pursuits.
Nosebands originated in the military due to their potential use as a headcollar [
1] and come in many traditional and contemporary designs. Today, they are commonly used to deter horses from opening their mouths and displacing their bit(s) [
2]. Aesthetically, nosebands are said to “frame the horse’s face”, which is why some equestrians regard horses without them as “undressed” [
2]. Nosebands may also be attached to the reins so that a rider can apply pressure to steer or decelerate their horse [
3].
Tightening nosebands seems to result, at least in the short term, in the horse being more sensitive to rein tension [
3]. The link between noseband tightness and rein tension may explain, in part, why nosebands may be applied so tightly as to be restrictive. The risk of over-tightening is amplified by the current lack of consistent international rules for monitoring noseband tightness. The International Society for Equitation Science (ISES) [
4] have instituted a benchmark of a two-finger spacing, measured at the nasal midline (flush on the nose). Although this standard mirrors conventional industry practice, the benchmark is non-binding. The two-finger spacing is also recommended by a number of horse welfare organisations including the Royal Societies for the Prevention of Cruelty to Animals (RSPCA) in the UK and Australia, as well as The Horse Trust [
5]. Despite this, the two-finger spacing benchmark is yet to be endorsed by the international equestrian and racing governing bodies [
6].
Some national equestrian federations have recently specified that a minimum spacing is required under the noseband at the nasal midline. The Danish and Swiss Equestrian Federations, for example, stipulate a minimum distance of 15 mm should be achieved between the strap and the skin [
7]. The Swedish Equestrian Federation proposes a distance of 20 mm. Although these new rules are a step in the right direction, they remain difficult to enforce and comply with until a standardised measuring tool is provided to stewards and riders [
8]. In contrast, the British Dressage Rulebook follows the guidelines set by the FEI that state the tightness check must be performed with the steward’s index finger between the horse’s cheek and the noseband [
9]. This location, however, is uninformative due to the much flatter and, in places, concave or hollow, shape of the horse’s face at the side [
6,
10].
Restrictive nosebands are primarily designed to keep the horse’s jaws closed and reduce behavioural signs of resistance, ranging from mouth-opening to tongue-lolling. These signs appear as the horse attempts to seek comfort, either by seizing the bit between its premolars or retracting its tongue to form an effective cushion to bit pressure. Both of these behaviours rely on the horse being able to open its mouth [
11]. Limiting such responses is likely to increase discomfort from the bit(s) [
12]. Thus, restrictive nosebands increase the rider’s control over the horse through a negative enforcement method [
13]. Because restrictive nosebands can impose sustained pressures on soft tissues and bones, pressures that peak when the horse attempts to perform normal jaw movements, such as those involved in chewing, are thought to compromise welfare [
14,
15]. Crank nosebands that can be tightened by an in-built pulley system are the most restrictive design [
16]. Concerns for horse welfare arising from restrictive tightening relate to the immediate effects of pressure on underlying tissues, pushing the horse’s cheek against the buccal surfaces (potentially causing abrasion or ulceration of the oral mucosa) and the suppression of normal behaviours, such as lip-licking, chewing, yawning and swallowing [
10,
14,
17].
Horses are largely trained through negative reinforcement whereby an aversive stimulus is removed immediately upon the horse offering the desired response [
18]. Relentless pressure defies any justification on the grounds of training. Restrictive nosebands can reduce or remove a horse’s ability to chew, swallow, yawn and lick its lips [
17,
19]. By definition, restrictive nosebands can violate the Five Freedoms of animal welfare [
20], in that they are designed to suppress the expression of normal behaviour. Denying horses the ability to move their jaws in order to seek comfort when bit pressure is applied results in the horses’ inability to deal with aversive pressure from the bit(s) [
10]. Indeed, the oral behaviours involved in responding to aversive pressures are precisely those resistances that are penalised in Dressage.
Within FEI-sanctioned horse sports, there are no consistent guidelines for noseband tightness. The Dressage guidelines for gear are arguably the most comprehensive, with detailed lists of the types of nosebands permitted, mandating double bridles at the elite level, and that “a noseband may never be so tightly fixed that it causes harm to the horse” [
21]. However, until governing bodies articulate how nosebands may cause such harm, this guideline will be too vague to be enforced. Eventing, Show-jumping, Polo, Camp-drafting and Racing specify only what types of nosebands are permitted, but the acceptable tightness of nosebands for these disciplines is not explicitly stated [
21,
22].
It has been suggested that, through repeated use, restrictive nosebands can potentially lead to micro-fractures of the nasal bones [
16] and bone remodelling [
20]. However, to date, peer-reviewed evidence of this outcome is absent. That said, there is early circumstantial evidence to suggest that nasal bones may be at greater risk of deformation in Warmbloods using nosebands [
23]. This is likely due to this type of horse being favoured in Eventing and Dressage [
23], which are the two equestrian sports in which restrictive nosebands are commonly used. It has also been shown that excessive noseband tightness is associated with lip abrasions and/or blood at the commissures of the lips [
24].
The putative reasons for noseband use are diverse and merit exploration across disciplines. This article reports on a survey designed to explore the types of nosebands that owners, riders and trainers use on horses in training and competition and their reasons for selecting these nosebands. The survey was developed to gain an understanding of approaches to noseband tightening and the incidence of complications.
2. Materials and Methods
2.1. Survey Instrument
Approval from the Human Research Ethics Committee of the University of Sydney was obtained prior to launching the current survey (Approval number: 2018/305). A draft questionnaire was piloted on volunteers (
n = 20). Feedback prompted minor changes (such as to the tone and clarity of the questions) and led to the final questionnaire (a full transcript can be found following the URL in the
Supplementary Materials section of this report).
The survey software (RedCap, Vanderbilt) allowed selective questions to be administered to participants within various horse disciplines. This questionnaire structure meant that the same survey could be disseminated across various interest groups. After asking respondents to specify their preferred equestrian pursuits, the survey focused on questions about the types of nosebands used, their purpose and details regarding their fitting. The survey ended with additional details about the respondents’ demographics, including their age, duration of involvement with horses and country of residence.
Respondents were first asked to describe their primary activity with horses, before stating how many horses they had, as well as what breed. To investigate who was using nosebands, respondents were asked whether they trained or raced any of their horses with nosebands. If they answered yes (i.e., Always, Usually, Sometimes or Rarely), participants were asked to select the type of noseband used from a list of illustrated options (Plain Cavesson noseband, Hanoverian noseband [with or without Flash], Drop noseband, Figure-of-eight/Grackle noseband, Micklem noseband, Sheepskin noseband or Other). Respondents were asked to specify whether or not their nosebands had a “cranking” system (that was illustrated in the questionnaire).
Respondents were then asked to answer three questions (responding on a scale of Always, Usually, Sometimes, Rarely and Never) outlining: whether they use tighter nosebands during competition than at home, whether they tighten their horse’s noseband immediately before or after competition, and whether or not their horse’s noseband is loosened for particular activities. Respondents were then asked to select up to 5 choices from 18 potential reasons for using nosebands: to improve the rider’s/driver’s ability to decelerate the horse; to improve the rider’s/driver’s ability to steer the horse; to improve the rider’s/driver’s ability to put the horse on the bit or in a frame/outline; to prevent or reduce airway obstruction; to reduce airway noise; to improve performance in competition; to prevent the horse moving its tongue over the bit; to improve the horse’s acceptance of the bit/contact; to improve the appearance of the horse; to prevent the horse from opening its mouth; to prevent the horse crossing its jaws; to prevent the bit sliding through the horse’s mouth; to align with rules of the sport; the current noseband came with the bridle when I purchased it; my instructor/coach/friend told me I needed to use one; a veterinarian told me that I needed to use one; most people in my sport use them; and other.
Respondents were also asked to comment on the noseband’s efficacy in achieving the stated purpose (selecting from Extremely effective, Very effective, Effective, Somewhat effective and Not at all effective), how long in minutes the noseband was usually left on and whether they noticed any undesirable physical or behavioural consequences from its use, for which the 13 options were: hair loss in the area under the noseband; soreness in the area under the noseband; swelling of the area under the noseband; discoloration of the area under the noseband; bleeding from the mouth; lip injuries; reduced appetite; dropping food; behavioural signs of anxiety/distress; head shyness; difficulty bridling the horse and difficulty fastening the noseband; and other. Next, respondents were asked whether they checked the tightness of the noseband and, if so, where on the horse’s head they conducted such checks. For this question, the available responses were as follows: at the bridge of the nose; along the right or left cheek; under the chin; and other. This question was followed by a question which prompted respondents to specify whether they employed a standardised taper gauge; selecting from: Yes, I have used taper gauges and find them useful; Yes, I have used taper gauges and do not find them useful; and No, I have never use a taper gauge.
2.2. Contact List Creation and Distribution
A database of breed and discipline associations, online magazines and individual Thoroughbred and Standardbred owners/trainers from both Australia and other English-speaking countries was compiled from web searches that included the Australian Yellow Pages website, Australian Racehorse Directory, broad governing associations (e.g., Equestrian Australia), and discipline or breed-specific associations. Respondents were encouraged to share the survey with their networks with the intention of further disseminating the survey. An article in the December issue of the Australian equestrian journal, Horses and People magazine, was commissioned to raise awareness among its subscribers. Additionally, various associations and individuals were contacted via email. Follow-up emails were circulated two months later. A Facebook page with details of the survey was posted to increase awareness of the survey through social media. This page and its contents were hosted on both the University of Sydney’s Veterinary Science and the University of Adelaide’s Equine Health and Performance Centre Facebook pages. Pamphlets were also distributed by hand during Equitana Melbourne in November 2018. The survey remained online for six months, from 28 August 2018 to 28 February 2019. A participation information statement directed participants to answer the questionnaire once only.
2.3. Data Analysis
Data were analysed using the “MASS” package [
25] in the R statistical software environment [
26]. Responses to the question “Do you train/race any of your horses while wearing nosebands?” were collected in the ordinal form of
Always,
Usually,
Sometimes,
Rarely and
Never, and were analysed using ordinal logistic regressions, using the “POLR” function. Six potential explanatory factors, namely equine discipline, horse breed, country, rider age, rider gender and rider experience, were first assessed using univariate ordinal logistic regression. To balance model completeness with model parsimony, any explanatory variables having a likelihood ratio χ
2 associated with a
p-value less than 0.20 were considered for multivariable modelling. All potential explanatory variables qualified for multivariable modelling. All terms were placed in an additive model (the full model). Following this, the full model was trialled and the additive term with the lowest likelihood ratio χ
2 (provided it was associated with a
p-value less than 0.20) was dropped from the model, resulting in the terms “rider experience”, and when this process was repeated, “rider gender”, being dropped from the model.
The final model:
did not explain significantly less deviance than the full six term model under the χ
2 approximation (deviance difference = 28.425, df = 22,
p = 0.16). In this model, the dependent variable was modelled as an ordinal response with five levels (
Always, Usually, Sometimes, Rarely and
Never). The independent variable equine disciple was modelled as a fixed factor with 12 levels: Western; Trail Riding; Showing/Hacking; Show-jumping; Racing, Pony Club/Working Equitation; Pleasure/Fun; Natural Horsemanship; Eventing; Endurance; Driving; Dressage; or Other. The dependent variable breed was modelled as a fixed factor with 18 levels: Andalusian, Appaloosa, Arabian, Australian Stock Horse, Cob, Connemara, CrossBreed, Icelandic, Irish Sport Horse, Morgan, Pony, Quarter Horse, Standardbred, Thoroughbred, Various, Warmblood, Welsh and Other. The independent variable Country was modelled as a fixed effect with 8 levels: Australia, Canada, Ireland, New Zealand, Sweden, United Kingdom, United States of America and Other. Finally, rider age was modelled as a fixed effect with 7 levels: 18–25, 25–35, 36–45, 46–55, 56–65, 66–75 and 76 years old or more. Coefficient estimates and standard errors from the model are reported in
Section 3.1.1,
Section 3.1.2 and
Section 3.1.3.
The likelihood for nomination of reasons for noseband use and for observing a complication from noseband use were evaluated using a binary logistic regression model using the “GLM” function of the “stats” package. For analysis, reasons for noseband use were grouped as “Anatomical”, “Consequential” and “Passive”. The Anatomical reasons were to: prevent the horse from moving its tongue over the bit; opening its mouth; crossing its jaws; and prevent the bit sliding through the horse’s mouth. The Consequential reasons were to: improve the rider’s/driver’s ability to decelerate the horse; improve the rider’s/driver’s ability to steer the horse; improve the rider’s/driver’s ability to put the horse on the bit or in a frame/outline; prevent or reduce airway obstruction; to prevent or reduce airway noise; to improve performance in competition; improve the horse’s acceptance of the bit/contact; and improve the appearance of the horse. The Passive reasons were: to align with the rules of the sport; the current noseband came with the bridle when I (the respondent) purchased it; my instructor/coach/friend told me I needed to use one; a veterinarian told me that I needed to use one and most people in my sport use them; and other.
The binary logistic regression models used were:
where “i” indicates a positive nomination by that respondent of any reason classed as Anatomical. Here, frequency of noseband usage (the dependent ordinal variable in the previous model) was fit as an unordered fixed effect with five levels:
Always,
Usually,
Sometimes,
Rarely and
Never. The independent variable of equine disciple corresponded to all disciplines shown above with at least 40 respondents (Dressage, Pleasure/Fun, Trail Riding, Show-jumping, Eventing, Pony Club/Working Equitation, Natural Horsemanship, Racing, Showing/Hacking, and the remaining disciples pooled with Other, creating a 10-level factor). Noseband Types were: Plain Cavesson, Drop Noseband, Figure-of-Eight/Grackle noseband, Hanoverian Noseband, Micklem Noseband, Sheepskin noseband or other. Odds ratios (OR) and confidence intervals (CI) derived from the coefficients and standard errors are shown in
Section 3.4 and below. The model was then fitted separately for Consequential and again for Passive reasons.
The proportional log odds assumption was assessed by graphically inspecting predictions of binary logistic regressions across each of the ordinal logistic regression cut points. Diagnostic surrogate-based residual plots, created by the “sure” package in R [
27], were inspected.
Due to the different number of reasons within each category (four for Anatomical, seven for Consequential and five for Passive), a weighted value, calculated by taking an average of each category, was used when comparing categories. Data from all disciplines with at least 40 respondents (Dressage, Pleasure/Fun, Trail riding/Pleasure riding, Show-jumping, Eventing, Pony Club/Working Equitation and Natural Horsemanship) were examined using logistic regression, and were examined further through descriptive analyses physical and behavioural complications.
4. Discussion
With 3040 respondents, this study is one of the most comprehensive to date on the subject of noseband use across a variety of equestrian disciplines and racing. It shows that reasons for noseband use vary considerably and that the reported effectiveness of nosebands depends on their design and the context in which they are being used. Among the respondents, 2332 used nosebands. Those who did not were most likely to be engaged in Natural Horsemanship, Western riding and Endurance. This may be due, in part, to these sports either not requiring noseband use or not penalising those displays of discomfort such as mouth-opening which nosebands can reduce. Of the 1837 participants who answered that they did not always use nosebands, most (50.4%, n = 868) stated that there was no need. Many of these respondents (39.3%, n = 677) stated that they wanted their horses to be able to open their mouths, with only a small number (0.5%, n = 9) stating that nosebands were not allowed in their discipline.
Of the six different noseband types (with other types as a seventh option), three contributed to 85.2% (n = 1988) of responses. Plain Cavesson nosebands were the most popular in all disciplines except Show-jumping. In addition, they were significantly associated with disciplines for which there were fewer respondents, such as Camp-drafting and Polo. The predominance of Passive reasons given for Plain Cavesson noseband use (59.8%, n = 650) indicates that they are generally perceived as the “standard” noseband. The relatively low number of Anatomical reasons given (23.6%, n = 257) for Plain Cavesson noseband use further supports the view that there is often no specific motive for their use.
Hanoverian nosebands were the most popular noseband type in Dressage, Show-jumping, Eventing and Hunting. These nosebands are effectively a variation of the Plain Cavesson which can mount a second strap that is adjusted below the bit. Either one or both the straps in such an assembly can be tightened enough to restrict the horse’s mouth movements [
14]. In the current study, Hanoverian nosebands were mainly used for Anatomical reasons (62.0%,
n = 359), consistent with an intention to restrict the horse’s oral behaviours.
In the current study, Grackle (or Figure-of-eight) nosebands were used almost exclusively for Racing. Grackle nosebands differ from Plain Cavesson chiefly because they disperse pressure more evenly across the front of the head and the upper strap can be positioned more proximally than the straps of other noseband designs. With this design, they are believed to interfere less with movement and expansion of the nostrils during exercise, allowing greater air intake [
28]. They may also aid in the prevention of certain respiratory issues (such as dorsal displacement of the soft palate (DDSP)), by keeping the mouth closed and thus preventing air from entering the oral cavity and contributing to palatal instability [
28,
29,
30]. A study of 750 Eventing, Dressage and performance hunter horses found that Grackle nosebands were applied especially tightly, with a median spacing between the strap and skin of 0.5 fingers, and a mean spacing of 0.7 fingers at the nasal midline [
6].
Over one quarter of respondents (28.9%,
n = 665) reported using a crank tightening system. Crank nosebands are particularly problematic from an equine welfare perspective because they can clamp the jaws of the horse shut with considerable pressure. This pressure peaks as horses try to chew [
14]. Additionally, the forces applied to the underlying soft tissue and nerves merit concern, given that nosebands compress soft tissue areas directly below them [
6]. Importantly, respondents who used a crank-like device were more likely than their non-crank-using counterparts to report one or more complications (41.7%,
n = 277 compared with 28.6%,
n = 613).
The most common Anatomical reason given for using nosebands was
to prevent the horse from moving the tongue over the bit (20.8%,
n = 485). The bit is an instrumental part of the bridle that allows the rider to apply pressure to the horse’s tongue and diastema to facilitate steering and deceleration [
31]. If a horse can move its tongue over the bit, then one of the primary points of contact/pressure from the rider is transferred to the soft tissues covering the mandible. In this position, the bit may cease to function properly which may increase the risk to the rider if the horse is unreceptive [
32]. Without proper bit function, the rider risks losing control of the horse. This is of critical importance especially in high-speed activities such as Show-jumping, Eventing and Racing, where injury rates are higher than in other sports [
33]. Nevertheless, overall, fewer than 8% of respondents stated they primarily used nosebands for steering (7.2%,
n = 168) and deceleration (7.5%,
n = 175). This result may be of interest to horse-sport regulators who, when attempting to enforce loosening of nosebands for horse welfare reasons, may face resistance on the grounds that tight nosebands are needed for safety. If riders are not employing nosebands for steering and deceleration purposes (i.e., for safety reasons), enforcing the traditional two-finger fit should be adopted on welfare grounds.
Preventing the horse from opening its mouth (17.8%, n = 413) or the bit from sliding through its mouth (17.7%, n = 412) were almost as common a response as preventing the horse from moving the tongue over the bit (20.8%, n = 485), which confirms that the bit is of central importance to those who train and ride horses. That said, it is less clear how those who ride without nosebands remain safe while still achieving these bit-related objectives.
The most frequent Consequential reason for noseband use was to improve the appearance of horses. Plain Cavessons were far more likely to be used for this purpose (29.9%, n = 328) compared with other nosebands, such as the Grackle (11.1%, n = 8), which was more likely to be chosen by Racing respondents to improve the steering and deceleration of the horse.
The current findings revealed that Dressage and Eventing respondents most frequently offered Passive reasons for noseband use (60.1% and 59.3%, respectively). This may run counter to the expectation that participants in these disciplines would have different reasons to use nosebands. Specifically, some might expect Dressage riders to use nosebands to give the impression of their horses showing “submission” and “acceptance of the bit”, whereas Eventing riders maybe seeking to increase control of the horse.
Our results showed only 4.1% (
n = 96) of respondents were familiar with the ISES taper gauge. It would be useful to know the factors that influence this device’s take-up in sports, especially in light of our findings that respondents did not check for tightness in any measurable/consistent manner. It is worth noting that the Danish Equestrian Federation has introduced a 15 mm gauge to be used to check noseband tightness at the bridge of the nose of horses competing in all sports [
34]. Furthermore, Dressage New Zealand has also taken steps to limit noseband tightness in competition, where a minimum of one finger must be able to fit under the noseband at the bridge of the nose at all times [
35]. It is encouraging that some federations are taking the initiative in demanding that these spacing guidelines be stated and enforced.
Our results align roughly with a previous study in which 9.2% of horses were observed with abrasions and/or blood visible at the commissures of the lips, although only 4.6% (
n = 20) of the current respondents reported having observed this outcome [
23]. The same previous study further reported that tighter nosebands were associated with a higher frequency of commissural lesions. Complete absence of the noseband (which is permitted in some disciplines) did not abolish ulcerations at the labial commissures but was associated with increased risk compared with a loosely adjusted noseband. The authors hypothesised that, without a noseband, the horse can resist bit pressure by opening the mouth, an action that facilitates abrading tissues between the bit rings/cheeks and the teeth. The authors concluded that, to be beneficial, the noseband should not be adjusted too tightly.
Complications relating to noseband use could impact a respondent’s willingness to continue using the same design of noseband. This is supported by the current finding that those who Rarely use nosebands were far more likely to report a complication due to noseband use, compared with those who Always use nosebands.
Nosebands can press the mucous membranes against the sharp buccal margins of the premolars, thus increasing the risk of abrasion and ulceration within the oral cavity. Interestingly, respondents who used Micklem nosebands were more likely than the average to report physical complications with noseband use. However, Micklem nosebands were designed to avoid compressing the sensitive areas of a horse’s head [
36]. A possible explanation for the current finding could be that respondents using Micklem nosebands have elected to use this design because they have encountered problems with other designs, a prospect that warrants further investigation.
Overall, 30.2% (
n = 705) of respondents stated that they use nosebands because the rules of the sport require them to. In the disciplines of Eventing, Show-jumping and Dressage, 95.3% (
n = 488) of respondents stated this as their main reason, although it is only in Dressage and the Dressage phase of Eventing where nosebands are obligatory [
21]. Some respondents (24.7%,
n = 579) stated that their bridle came with their specified noseband. In combination, these findings could reflect a lack of awareness of the potentially deleterious consequences of noseband use. Furthermore, if nosebands are mandated in certain disciplines and may have deleterious physical and behavioural impacts on horses, it follows that sports governing bodies should establish evidence-based and clear guidelines regarding their use and adjustment. Rules 2.1.5, 2.2, 2.2.1 and Annex 16 in the FEI rules for Dressage stipulate that “a noseband should never be so tightly fixed that it causes harm to the horse” [
21] but fail to articulate either how it causes harm or how tightness should be measured. However, the FEI Steward guidelines (2019) for monitoring tightness and adjustment fail to meet the evidence-based recommendations of establishing a minimum spacing at the nasal plane and monitoring compliance using an objective gauge, despite studies such as Doherty et al. (2016) suggesting that nosebands are generally overtightened [
6,
37].
The prevalence of Passive reasons for noseband use among our respondents is somewhat surprising, given the suggested competitive advantages of restrictive nosebands [
17]. If gaining a competitive advantage is the main motivation for noseband usage, one would expect a higher percentage of Consequential reasons should have been observed in the current results. It is worth noting that only 12.5% of respondents (
n = 289) admitted to tightening their horses’ nosebands immediately before competing. It may be that most riders do not adopt this practice because they are satisfied that the current level of tightness during warm-up and training is ideal for competition, they are unaware that escalating the tightness between warming-up and competing may increase sensitivity to the bit(s) or the level of tightness they use for warm-up and training is already maximal.
It is important to acknowledge some limitations with the current study. Due to this survey being anonymous and online, it demanded a level of trust in respondents to answer truthfully and to the best of their ability. Respondents were encouraged to read through a user agreement which described the nature of the survey and asked for their consent to participate in the study. Beyond that, this type of survey may reflect some residual bias, with respondents potentially being unwilling to comment honestly on the tightness of their horses’ nosebands, particularly when there has been considerable commentary in the social media about noseband tightness and the noseband taper gauge. Furthermore, the authors acknowledge that this should not be considered a definitive global survey, rather it is an opportunity to explore relationships among management variables and reported outcomes. Reported outcomes may be affected by cognitive dissonance. For example, respondents may wish to believe (and therefore report) that an item of gear achieves what they had hoped, even if it fails to so. Additionally, the authors acknowledge the limitations of internet surveys and the potential for non-responder bias. The authors accept that the distinctions between the three groups of reasons (Anatomical, Consequential and Passive) are not absolute and that some may overlap with one another. However, respondents were not confined to selecting only one reason for using nosebands and the labels we have used should not be considered definitive. Additionally, the logic pathways could be optimised for future studies.
The survey asked: Do you check the tightness of nosebands? To assess frequency of noseband checking, e.g., after bridles have been deconstructed for cleaning and then reassembled for use, it should have asked how often respondents check the tightness of nosebands. The current study failed to establish how tightly nosebands were being fitted. It is important to also note that we cannot make claims of direct causality from the current cross-sectional data. Furthermore, we acknowledge that oral discomfort and soft tissue complications to the head may have myriad causes beyond tight nosebands. The authors acknowledge that the questionnaire should have asked participants who noted consequences to specify which noseband they were using at the time of these consequences. In this vein, future studies should also attempt to isolate nosebands as a definitive cause of the complications noted by respondents. The nature of cross-sectional surveys such as the current one means that definitive causal effects cannot be divined. The low uptake of the ISES taper gauge in the current sample of respondents contributed to the absence of useful estimates of current practice in noseband checking. Further studies should explore the merits of asking horse-keepers to use a standard gauge when estimating the level of noseband tightness that they regard as acceptable. Further research should also seek to clarify why so many respondents gave Passive reasons for noseband use in equestrian activity. Finally, future researchers could benefit from a focused study of those engaged in Eventing, Dressage and Show-jumping as disciplines in where restrictive nosebands could be beneficial to performance, to determine how tight trainers apply nosebands to their horses, and, indeed, whether their noseband use is effectively “restrictive”. Additionally, further research should ascertain whether there are significant differences between countries. Finally, due to the complicated real-world relationships among breed, equipment, discipline and husbandry, further research is needed to tease out these effects.