
The Icelandic horse is known for its unique gaits, which are a result of its distinct breeding history.
The Icelandic horse has five natural gaits: the walk, trot, canter, and two ambling gaits, the tölt and the skeið.
The tölt is a four-beat gait that is characteristic of the Icelandic horse and is often described as a smooth, comfortable pace.
In the tölt, the horse's legs move in a diagonal pattern, with the inside hind leg and the outside front leg moving together in a smooth, gliding motion.
The skeið, on the other hand, is a two-beat gait that is similar to a canter, but with a more fluid, elastic movement.
The Icelandic horse's gaits are influenced by its breeding history, which dates back to the 9th century when the first horses were brought to Iceland.
The horses were bred for their strength, agility, and endurance, which allowed them to thrive in Iceland's rugged landscape.
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Basic Gaits
The Icelandic horse has a unique ability to synchronize its right and left sides, thanks to a gene mutation that's been preserved for centuries.
The Vikings who settled in Iceland brought their best horses, which had smoother gaits than others, and made sure to breed offspring from these horses.
The Icelandic horse has two distinct gaits: tölt and flying pace. These gaits allow the horse to move faster and save energy, especially when moving at high speeds in the fields.
In the fields, the horses choose between tölt and flying pace gaits according to the speed they're moving at, helping them conserve energy and move efficiently.
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Special Gaits
The Icelandic horse is known for its unique gaits, which set it apart from other breeds. It has five gaits in total, including the usual walk, trot, and gallop, as well as two special gaits: tölt and Flying pace.
Tölt is a smooth four-beat gait where the horse always has one or two legs on the ground at the same time, allowing for a smooth ride even at high speeds.
The Icelandic horse's ability to tölt is due to gene mutation, which helps it synchronize the right and left sides, enabling it to move faster and more efficiently.
The horse's tölt gait can be ridden at a slow to a faster pace, and it's often used to conserve energy while moving at a steady speed.
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Gallop
The gallop is a three-beat natural gait where the horse glides a bit in the air.
This gait can be performed at various speeds, ranging from slow to fast.
In the Icelandic horse, the gallop and canter are considered one combined gait, which is unique to this breed.
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Tölt
The Tölt is a unique and desirable gait of the Icelandic horse, known for its smooth and effortless ride.
This four-beat lateral gait allows the horse's hind legs to move well under its body, carrying more of the weight than the front end, which enables the front to rise and be free and loose.
Riding Tölt is very smooth because the horse always has one or two hooves on the ground, eliminating the suspension phase between strides.
The Tölt can be ridden at a slow or fast pace, depending on the horse and its training level, and the footfall is the same as in a walk but faster.
The Icelandic horse puts more weight on its back part when Tölting, which makes it a comfortable and natural gait for the horse and rider.
The Icelandic people often hold a full glass when riding Tölt without spilling it, demonstrating just how smooth this gait can be.
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Flying Pace
Flying pace is a two-beat gait where the horses move the front and back leg on the same side simultaneously so they glide in the air.
This gait is ridden for a short period at a fast pace, reaching speeds of about 48km/h.
Flying pace is used for raising and for show, and is equal to a full speed of gallop.
It can take a while and hard work to be able to put the horses on Tölt, which is also a challenging gait to master.
Hestapeysa
The Icelandic horse is a unique breed that has five gaits, including the walk, trot, and gallop, but also the tölt and the Flying pace, or skeið.
The Hestapeysa pattern is designed to showcase all five of these gaits, making it a great project for anyone interested in knitting a unique and informative sweater.
The pattern uses a clever colorwork technique called the Ladder-back Jacquard to create the horses' motifs, which are a key part of the design.
The sweater is designed to be loose and unisex, with optional waist shaping and a zippered turtleneck.
Knitting with plötulopi doubled with Love Story yarn gives the sweater strength and softness, and it's a quick knit on large needles.
The finished sweater measurements are quite generous, with a 10 cm/4” positive ease, so you can choose the size that fits you best.
The pattern comes in a range of sizes from S to 5XL, so there's something for everyone.
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If you're between sizes, it's recommended to choose the largest one to ensure a comfortable fit.
The sweater and vest shown in the pattern are both a size M with waist shaping, worn with 11.5 cm/4¼” positive ease at bust.
The finished sweater measurements include bust, hips, waist, upper arm, body length, yoke depth, and sleeve length, so you can plan your project carefully.
Research and Data
The researchers used phenotype data from the Worldfengur database, which included scores for pace recorded at standardized breeding field tests for Icelandic horses between 1999 and 2022.
Most horses were assessed in Iceland, but some were also assessed in other countries like Denmark, Germany, Norway, and Sweden.
A total of 269 horses were assessed in Iceland, while smaller numbers were assessed in the other countries, with 1 horse in Denmark, 6 in Germany, 1 in Norway, and 85 in Sweden.
The age of the horses when they attended a breeding field test ranged from 4 to 15 years, with a mean age of 6.7 years.
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Results and Figures
Genetic factors play a significant role in determining the gait of Icelandic horses. A study genotyped 372 horses with the 670 K+ Axiom Equine Genotyping Array, revealing several SNPs associated with breeding field test scores for pace.
The study identified two novel QTL on Equus caballus chromosomes 4 and 9, located within the RELN and STAU2 genes, respectively. These genes have previously been associated with locomotor behavior in mice.
The RELN gene was found to have a large favorable effect on pace score, with the most frequent haplotype having a significant impact. Additionally, the second most frequent haplotype of the RELN gene was positively correlated with scores for tölt, trot, gallop, and canter.
Results
Three hundred and seventy-two Icelandic horses were genotyped with the 670 K+ Axiom Equine Genotyping Array.
The study found that several SNPs on Equus caballus chromosomes 4, 9, and 20 were associated with the breeding field test score for pace.
A GWAS revealed two novel QTL on ECA4 and 9, located within the RELN and STAU2 genes, respectively.
These genes have previously been associated with locomotor behavior in mice.
Haplotypes were identified for each of these two QTL, with the most frequent one having a large favorable effect on pace score.
The second most frequent haplotype for the RELN gene was positively correlated with scores for tölt, trot, gallop, and canter.
Similarly, the second most frequent haplotype for the STAU2 gene had favorable effects on scores for trot and gallop.
Different genotype ratios of the haplotypes in the RELN and STAU2 genes were observed in groups of horses with different levels of pacing ability.
Interactions were detected for the QTL in the RELN and STAU2 genes with the DMRT3 gene.
The novel QTL on ECA4, 9, and 20, along with the effects of the DMRT3 variant, were estimated to account jointly for 27.4% of the phenotypic variance of the gait pace.
Figure 6

Figure 6 illustrates the interactions between significant haplotypes on ECA4 and ECA9 in a group of horses.
The figure shows the subjective scores for various gaits, with a total of 78 horses having the SS:RR genotype combination, 150 having the SS:Rr combination, and 41 having the SS:rr combination.
Horses with the Ss:rr genotype combination had higher mean assessment scores than those with the SS:RR and SS:Rr combinations for most gaits.
In fact, they had higher mean scores than horses with the Ss:RR combination for tölt, slow tölt, gallop, and canter, as well as higher mean scores than horses with the SS:rr combination for slow tölt.
Horses with the Ss:rr genotype combination also outperformed those with the Ss:Rr combination for tölt and slow tölt.
The mean scores for horses with the ss:RR and ss:Rr genotype combinations were not significantly different from those with other genotype combinations, likely due to the small sample size of just 2 and 3 individuals, respectively.
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Icelandic Horse Gaits
The Icelandic horse is a unique breed with five gaits, unlike most horses which have only three: Walk, Trot, and Gallop.
Tölt and Flying pace are the two special gaits that make the Icelandic horse so special and desirable to ride.
These gaits are natural and new-born foals frequently show them right from the start.
In fact, most Icelandic horses are five-gaited, meaning they possess all five gaits, while some are considered four-gaited, and lack the flying pace.
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Natural
The Icelandic horse's natural gaits are truly unique and fascinating.
Tölt and flying pace are natural gaits that new-born foals frequently show right from the start.
In fact, most Icelandic horses are five-gaited, meaning they possess all five gaits, while some are considered four-gaited, and lack the flying pace.
A genetic variation found in Icelandic horses allows for lateral movement in horses.
This mutation is responsible for the horse's ability to move faster and get more speed, like in flying pace.
Five-gaited Icelandic horses always inherit this mutation from both parents.
Four-gaited horses, however, can have three different genotypes of this gene.
The Icelandic horse's natural gaits have remained untacked since they were brought to Iceland centuries ago.
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Icelandic Horse Gaits
The Icelandic horse is a gaited breed, meaning they have five gaits, unlike most horses which only have three.
One of the unique gaits of the Icelandic horse is the tölt, a smooth and desirable gait that makes them special to ride.
Horses usually have three gaits: Walk, Trot, and Gallop, but the Icelandic horse adds two more: Tölt and Flying pace.
The Flying pace is another natural gait of the Icelandic horse, and newborn foals often show it right from the start.
Most Icelandic horses are five-gaited, but some are considered four-gaited, lacking the Flying pace.
A genetic variation found in Icelandic horses allows for lateral movement, and five-gaited horses inherit this mutation from both parents.
This genetic variation is linked to the gene DMRT3, and it's what makes the Icelandic horse's unique gaits possible.
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