Rippe JM, Ward A., Freedson P., Porcari J., O’Hanley S., Wilkie S.The cardiovascular benefits of walking. Pract Cardiol. 1988;(1):66-72.
2.
Rippe JM, Ward A., Porcari J., Freedson PSWalking for health and fitness. JAMA. 1988 ;259:272.
3.
Porcari JP, Ebbeling CB, Ward A., Freedson PS, Rippe JMWalking for exercise testing and training. Sports Med. 1989;8(4):189-200.
4.
Widrick J., Ward A., Ebbeling C., Clemente E., Rippe J.Treadmill validation of an over-ground walking test to predict peak oxygen consumption. Eur J Appl Physiol. 1992;64:304-308.
5.
Heil DP, Freedson PS, Ahlquist L., Price J., Rippe J.Criterion-referenced evidence for the predictive validity of a non-exercise based VO2 max prediction model. Med Sci Sport Exerc. 1995;27:599-606.
6.
Kline GM, Porcari JP, Hintermeister R., et al. Estimation of VO2 max from a one-mile track walk, gender, age, and body weight. Med Sci Sports Exerc. 1987 ;19:253.
7.
Pate RR, Pratt M., Blair SN, et al. Physical activity and public health: a recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine. JAMA. 1995;273:402-407.
8.
Exercise Is Medicine Web site. http://www.exerciseismedicine.org.
9.
Pate, RR, Yancey AK, Kraus WEThe 2008 Physical Activity Guidelines for Americans: implications for clinical and public health practice. Am J Lifestyle Med.2010; 4:209-217.
10.
US Department of Health and Human Services.Physical Activity Guidelines Advisory Committee Report 2008. Washington, DC: US Department of Health and Human Services; 2008.
11.
US Department of Health and Human Services, US Department of Agriculture.Dietary Guidelines for Americans, 2005. 6th ed. Washington, DC : Government Printing Office; 2005 .
12.
Rollnick S., Mason P., Butler C.Health Behavior Change: A Guide for Practitioners. London , UK: Churchill Livingstone;1999 .
13.
Erickson SJ, Gerstle M., Feldstein SWBrief intervention and motivational interviewing with children, adolescents, and their parents in pediatric health care settings: a review. Arch Pediatr Adolesc Med. 2005;159:1173-1180.
14.
Frank E., Wright EH, Serdule MK, Elon LK, Baldwin G.Personal and professional nutrition-related practices of US female physicians . Am J Clin Nutr. 2002;75(2):326-332.
15.
Abramson S. , Stein J., Schaufele M., Frates E., Rogan S.Personal exercise habits and counseling practices of primary care physicians: a national survey. Clin J Sport Med. 2000;10(1):40-48.