Figure 3.

The effect of the human attachment style of 32 at-risk adolescents on the mean heart rate of therapy horses (n = 9) during the riding component of a 10-week equine-facilitated learning program. The green, red, and blue lines refer to adolescents with a secure, preoccupied, or fearful attachment style, correspondingly. Different letters (a–e) refer to significant mean differences in the heart rate of horses ridden by adolescents within the same attachment style across week of the program (p < 0.05).