These types of articles tend to describe the specific instance of a test or series of tests, often on human and non-human animals.
This study sought to determine whether participants in taijiquan classes would report increases in mindfulness greater than that of a comparison group, and whether changes in mindfulness were associated with improvements in mood, perceived stress, self-regulatory self-efficacy, and sleep quality. The study design was quasi-experimental with repeated measures. The study was set in a midsized public university. Students aged 18-48 years old enrolled in 15-week courses of either taijiquan (n=76) or special recreation (control group, n=132). Chen-style taijiquan classes were offered 2 times per week for 50 minutes each time. Self-report of mindfulness (Five Facet Mindfulness Questionnaire), mood (Four Dimensional Mood Scale), perceived stress (Perceived Stress Scale), self-regulatory self-efficacy (Self-regulatory Self-Efficacy Scale), and sleep quality (Pittsburgh Sleep Quality Index). Increases in total mindfulness scores occurred only in the taijiquan group, not in the control group. All well-being variables showed a pattern of improvement in the taijiquan group, with either stability or decline over time in the control group. Increases in mindfulness were significantly correlated with improvements on all well-being measures and with sleep quality. Relative to a recreation control group, taijiquan classes for college students are associated with increased mindfulness and improved sleep quality, mood, and perceived stress, but not self-regulatory self-efficacy. Randomized control design studies are needed to substantiate the causal role of taijiquan exercise in the development of mindfulness and associated improvements in well-being.
Caldwell, Karen, et al. "Changes in Mindfulness, Well-being, and Sleep Quality in College Students through Taijiquan Courses: A Cohort Control Study." Journal of alternative and complementary medicine (New York, N.Y.) 17.10 (2011): 931-8. AIDS and Cancer Research Abstracts; Biological Sciences. Web. 24 Jan. 2013.