Examining Physical Activity and Affect Using Objective Measures: A Pilot Study of Anorexia Nervosa

Authors:
Trisha M. Karr, Ph.D., Brian Cook, Ph.D., Christie Zunker, Ph.D., Li Cao, M.S., Ross D. Crosby, Ph.D., Stephen A. Wonderlich, Ph.D., & James E. Mitchell, M.D.

Affiliation: Neuropsychiatric Research Institute, 120 8th Street, Fargo, ND 58103

Corresponding Author:
Dr. Christie Zunker, 260 River Valley Rd, Atlanta, GA 30328
christiezunker@hotmail.com
205-821-1499

ABSTRACT
This pilot study used accelerometers and ecological momentary assessment (EMA) to objectively examine physical activity and affect among women suffering from anorexia nervosa (AN). Nine women with AN wore ActiGraphTM accelerometers and completed EMA recordings across seven days. Mixed-effects linear models revealed temporal associations between physical activity and affect within the same day, within the same hour, and within the next hour. Momentary measurement of physical activity and positive affect revealed reciprocal effects, in that physical activity enhanced positive affect, which in turn, facilitated further activity. Findings reflect the utility of objective assessment measures in real time for the link between physical activity and affect among women with AN. The implementation of a tailored physical activity program, coordinated by trained clinical and sports professionals, may be a valuable asset for the treatment of AN.
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Challenge, Commitment, Community, and Empowerment: Factors that Promote the Adoption of CrossFit as a Training Program

Authors
Duncan Simpson Ph.D1*; Tanya R. Prewitt-White, Ph.D2*; Yuri Feito, Ph.D, MPH, FACSM3*; Julianne Giusti, MS1; Ryan Shuda, MS4;
* Equal contributors

Institution
1 IMG Academy, Bradenton, FL, USA
2 University of Illinois – Chicago, Chicago, IL, USA
3 Kennesaw State University, Kennesaw, GA, USA
4 Adler University, Chicago, IL, USA

Corresponding Author
Yuri Feito, Ph.D, MPH, FACSM
Dept. Exercise Science & Sport Management, Kennesaw State University
520 Parliament Garden Way NW
MD 4104 | Bldg. 41 | Office 4233
Kennesaw, GA 30144
Email: yfeito@kennesaw.edu

ABSTRACT
CrossFit training is a relatively new training program characterized by “high intensity, constantly varied, functional movements” (Glassman, 2007). Considering the initiation of exercise is usually affected by multiple factors, the authors qualitatively examined the factors that encourage individuals with more than three months of CrossFit training experience to adopt and maintain this high-intensity training modality. Seventeen individuals over 25 years old were purposively sampled and contacted by an investigator for an interview. Semi-structured interviews were selected as the primary form of data collection. Analyses of the interviews led to the following four overarching themes: Accepting and Overcoming Challenge, Commitment, Connection and Community, and Empowerment and Transformation.

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