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Do the Splits: Can Patients Divide the Daily Workout?. Taryn Smith, PAS-3 Faculty Mentor: Daniel O’Donoghue, PA-C, PhD OU Health Science Center Oklahoma City, OK. Why Address Exercise?. Pts resistant to providers’ advice on matter Too little time Feel inadequate or fear injury
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Do the Splits:Can Patients Divide the Daily Workout? Taryn Smith, PAS-3 Faculty Mentor: Daniel O’Donoghue, PA-C, PhD OU Health Science Center Oklahoma City, OK
Why Address Exercise? • Pts resistant to providers’ advice on matter • Too little time • Feel inadequate or fear injury • Vague idea of benefits • Lack of motivation
Clinical Question In adults with no history of coronary artery disease (CAD), is a summative 30 minutes of daily aerobic activity as effective at minimizing risk factors for CAD as a consecutive 30 minutes of daily aerobic activity?
Objectives • Consider why patients may desire an alternative to “traditional” exercise • Define what constitutes a short-bout workout • Evaluate the tangible benefits linked to short-bout workouts • Examine the validity of the findings • Consider literature limitations and avenues of future research
The Recommendation 2008 Physical Activity Guidelines for Americans ≥ 150 minutes/week Moderate intensity
Define Short-Bout Exercise • Anything less than the traditional 30+ minutes • 10, 15, 20, 30 minutes
The Payoff: SB vs. LB • Increased workout adherence • Equivalent weight loss • Similar VO2max increases • Equal reduction of body fat % • Decreased waist circumference • Lowered BMI in > 25 cohort • Decreased skinfold thickness
Trusting the Science • Designs of studies • p values • Varied subgroups within cohort
Literature Limitations • Small sample sizes • Self-reported data • Confounding interventions • Short study duration • Decreased exercise over time • Older data
Future Research Improvements • Larger sample sizes • Different cohorts • Longer study length • Improved endpoints • Eliminate confounders
References • 2008 Physical activity guidelines for Americans. US Department of Health and Human Services (HHS), Office of Disease Prevention and Health Promotion. Washington: HHS; 2008. (Accessed March 14, 2012, at http://www.health.gov/paguidelines/pdf/paguide.pdf). • Murphy MH, Hardman AE (1998) Training effects of short and long bouts of brisk walking in sedentary women, Med. Sci. Sports Exerc., 30: 152–15. • Schmidt WD, Biwer CJ, Kalscheuer LK (2001) Effects of long versus short bout exercise on fitness and weight loss in overweight females, J. Am. Coll. Nutr. 20(5): 494-501. • Jakicic JM, Wing RR, Butler BA, Robertson RJ (1995) Prescribing exercise in multiple short bouts versus one continuous bout: effects on adherence, cardiorespiratory fitness, and weight loss in overweight women, International Journal of Obesity, 19: 893-901. • Jakicic JM, Winters C, Lang W, Wing RR (1999) Effects of intermittent exercise and use of home exercise equipment on adherence, weight loss, and fitness in overweight women: a randomized trial, JAMA, 282(16): 1554-1560.
References • Deaths and Mortality. Centers for Disease Control and Prevention (CDC). Atlanta, GA; March 2012. (Accessed 9/24/12 at http://www.cdc.gov/nchs/fastats/deaths.html). • Physical Activity and Health: The Benefits of Physical Activity. Centers for Disease Control and Prevention (CDC). Atlanta, GA; February 2011. Accessed 9/24/12 at http://www.cdc.gov/physicalactivity/everyone/health/index.html). • Physical Activity: Measuring Physical Activity Intensity. Centers for Disease Control and Prevention (CDC), Atlanta, GA. December 2011. Accessed 9/24/12 at http://www.cdc.gov/physicalactivity/everyone/measuring/index.html).