‘Horse girls’ are a subculture often overlooked but it has been around for a long time. But as many subcultures being a member can have benefits. New research shows a very particular benefit for ‘horsing around’, stress reduction, and the evidence lies in kids’ saliva!

From the press release:

“We were coming at this from a prevention perspective,” said Patricia Pendry, a developmental psychologist at WSU who studies how stress “gets under the skin” and the effects of prevention programs on human development. “We are especially interested in optimizing healthy stress hormone production in young adolescents, because we know from other research that healthy stress hormone patterns may protect against the development of physical and mental health problems.”

Her work is the first evidence-based research within the field of human-equine interaction to measure a change in participants’ levels of the stress hormone cortisol.

“The beauty of studying stress hormones is that they can be sampled quite noninvasively and conveniently by sampling saliva in naturalistic settings as individuals go about their regular day,” Pendry said.

While human-animal interaction programs with horses, dogs, cats and other companion animals have been credited with improving social competence, self-esteem and behavior in children, scientifically valid research to support these claims — and an understanding of the underlying mechanism for why people report a positive experience in these programs — has been limited.

She said stress hormone functioning is a result of how we perceive stress as well as how we cope with it. Stress is not just what you experience, she said, but it’s how you interpret the size of the stressor. A child in front of a large, unfamiliar horse may experience more stress than when he or she encounters a smaller, more familiar animal.

Working with PATH director Sue Jacobson and Phyllis Erdman from the WSU College of Education, Pendry designed and implemented an after-school program serving 130 typically developing children over a two-year period that bused students from school to the barn for 12 weeks.

Children were randomly assigned to participate in the program or be waitlisted. Based on natural horsemanship techniques, the program provided 90 minutes weekly to learn about horse behavior, care, grooming, handling, riding and interaction.

Participants provided six samples of saliva over a two-day period both before and after the 12-week program. Pendry compared the levels and patterns of stress hormone functioning by measuring cortisol. The results were exciting, she said.

“We found that children who had participated in the 12-week program had significantly lower stress hormone levels throughout the day and in the afternoon, compared to children in the waitlisted group,” she said. “We get excited about that because we know that higher base levels of cortisol — particularly in the afternoon — are considered a potential risk factor for the development of psychopathology.”

Pendry said the experimental design underlying the study gives more scientific credit to the claims of therapeutic horsemanship professionals, parents and children who have reported a positive impact from these types of programs. In addition, she hopes the results will lead to development of alternative after-school programs.

While the research focused on prevention, Pendry said she believes it could provide a starting point to look at the impact on children of high levels of stress and physical or mental health issues.

“Partly because of NIH’s effort to bring hard science to the field of human-animal interaction, program implementers now have scientific evidence to support what they are doing,” she said.

The report can be seen online at: https://news.wsu.edu/wp-content/uploads/2014/04/effects-of-equine-facilitated-learning.pdf, this is the abstract:

Although equine facilitated programs have gained in popularity over the last decade, virtually nothing is known about the causal effects of equine facilitated interventions on human development and well-being. Researchers conducted a randomized trial to determine the effects of an 11-week equine facilitated learning program on the activity of the Hypothalamic Pituitary Adrenal (HPA) axis of fifth through eighth graders through salivary cortisol levels. Children (N = 131) referred by school counselors and recruited from the community were randomly assigned to either an experimental (N = 53) or waitlisted condition (N = 60). Six samples of salivary cortisol
were collected in participants’ own home over two consecutive days at pretest, and another set of six samples were collected at posttest in both groups of children. Children in the experimental group who participated in a series of once-weekly, 90-minute sessions of equine facilitated activities had lower afternoon cortisol levels (F(1, 112) = 8.56, p = .017; d = .48) and lower total cortisol concentration per waking hour (F(1, 112) = 11.12 , p = .017, d = .46) at posttest, compared to waitlisted children. Multivariate regression analyses showed that program effects were independent from baseline levels of child cortisol, child gender, age, and referral status.