Effects of the Amount and Intensity of Exercise on Plasma Lipoproteins
William E. Kraus, M.D., Joseph A. Houmard, Ph.D., Brian D. Duscha, M.S., Kenneth J. Knetzger, M.S., Michelle B. Wharton, M.A., Jennifer S. McCartney, M.A., Connie W. Bales, Ph.D., R.D., Sarah Henes, R.D., Gregory P. Samsa, Ph.D., James D. Otvos, Ph.D., Krishnaji R. Kulkarni, Ph.D., and Cris A. Slentz, Ph.D.
Background Increased physical activity is related to reducedrisk of cardiovascular disease, possibly because it leads toimprovement in the lipoprotein profile. However, the amountof exercise training required for optimal benefit is unknown.In a prospective, randomized study, we investigated the effectsof the amount and intensity of exercise on lipoproteins.
Methods A total of 111 sedentary, overweight men and women withmild-to-moderate dyslipidemia were randomly assigned to participatefor six months in a control group or for approximately eightmonths in one of three exercise groups: high-amounthigh-intensityexercise, the caloric equivalent of jogging 20 mi (32.0 km)per week at 65 to 80 percent of peak oxygen consumption; low-amounthigh-intensityexercise, the equivalent of jogging 12 mi (19.2 km) per weekat 65 to 80 percent of peak oxygen consumption; or low-amountmoderate-intensityexercise, the equivalent of walking 12 mi per week at 40 to55 percent of peak oxygen consumption. Subjects were encouragedto maintain their base-line body weight. The 84 subjects whocomplied with these guidelines served as the basis for the mainanalysis. Detailed lipoprotein profiling was performed by nuclearmagnetic resonance spectroscopy with verification by measurementof cholesterol in lipoprotein subfractions.
Results There was a beneficial effect of exercise on a varietyof lipid and lipoprotein variables, seen most clearly with thehigh amount of high-intensity exercise. The high amount of exerciseresulted in greater improvements than did the lower amountsof exercise (in 10 of 11 lipoprotein variables) and was alwayssuperior to the control condition (11 of 11 variables). Bothlower-amount exercise groups always had better responses thanthe control group (22 of 22 comparisons).
Conclusions The highest amount of weekly exercise, with minimalweight change, had widespread beneficial effects on the lipoproteinprofile. The improvements were related to the amount of activityand not to the intensity of exercise or improvement in fitness.
Source Information
From the Divisions of Cardiology (W.E.K., B.D.D., K.J.K., C.A.S.), Geriatrics (C.W.B., S.H.), and General Internal Medicine (G.P.S.), Department of Medicine, the Duke Center for Living (W.E.K.), the Center for Health Policy Research (G.P.S.), and the Department of Community and Family Medicine (G.P.S.), Duke University Medical Center; and the Geriatric Research, Education, and Clinical Center, Durham Veterans Affairs Medical Center (C.W.B.) both in Durham, N.C.; the Department of Exercise and Sport Science and the Human Performance Laboratory, East Carolina University, Greenville, N.C. (J.A.H., M.B.W., J.S.M.); LipoScience, Cary, N.C. (J.D.O.); and Atherotech, Birmingham, Ala. (K.R.K.).
Address reprint requests to Dr. Kraus at the Division of Cardiology, Department of Medicine, P.O. Box 3327, Duke University Medical Center, Durham, NC 27710, or at william.kraus{at}duke.edu.
Janiszewski, P. M., Saunders, T. J., Ross, R.
(2008). Themed Review: Lifestyle Treatment of the Metabolic Syndrome. AMERICAN JOURNAL OF LIFESTYLE MEDICINE
2: 99-108
[Abstract]
Noda, H, Iso, H, Toyoshima, H, Date, C, Yamamoto, A, Kikuchi, S, Koizumi, A, Kondo, T, Watanabe, Y, Wada, Y, Inaba, Y, Tamakoshi, A, JACC Study Group,
(2008). Smoking status, sports participation and mortality from coronary heart disease. Heart
94: 471-475
[Abstract][Full Text]
Metsios, G. S., Stavropoulos-Kalinoglou, A., Veldhuijzen van Zanten, J. J. C. S., Treharne, G. J., Panoulas, V. F., Douglas, K. M. J., Koutedakis, Y., Kitas, G. D.
(2008). Rheumatoid arthritis, cardiovascular disease and physical exercise: a systematic review. Rheumatology (Oxford)
47: 239-248
[Abstract][Full Text]
Mora, S., Cook, N., Buring, J. E., Ridker, P. M, Lee, I-M.
(2007). Physical Activity and Reduced Risk of Cardiovascular Events: Potential Mediating Mechanisms. Circulation
116: 2110-2118
[Abstract][Full Text]
Pluim, B. M, Staal, J B., Marks, B. L, Miller, S., Miley, D.
(2007). Health benefits of tennis. Br. J. Sports. Med.
41: 760-768
[Abstract][Full Text]
Hamilton, M. T., Hamilton, D. G., Zderic, T. W.
(2007). Role of Low Energy Expenditure and Sitting in Obesity, Metabolic Syndrome, Type 2 Diabetes, and Cardiovascular Disease. Diabetes
56: 2655-2667
[Abstract][Full Text]
Vinagre, C. G. C., Ficker, E. S., Finazzo, C., Alves, M. J. N., de Angelis, K., Irigoyen, M. C., Negrao, C. E., Maranhao, R. C.
(2007). Enhanced removal from the plasma of LDL-like nanoemulsion cholesteryl ester in trained men compared with sedentary healthy men. J. Appl. Physiol.
103: 1166-1171
[Abstract][Full Text]
Sigal, R. J., Kenny, G. P., Boule, N. G., Wells, G. A., Prud'homme, D., Fortier, M., Reid, R. D., Tulloch, H., Coyle, D., Phillips, P., Jennings, A., Jaffey, J.
(2007). Effects of Aerobic Training, Resistance Training, or Both on Glycemic Control in Type 2 Diabetes: A Randomized Trial. ANN INTERN MED
147: 357-369
[Abstract][Full Text]
Singh, I. M., Shishehbor, M. H., Ansell, B. J.
(2007). High-Density Lipoprotein as a Therapeutic Target: A Systematic Review. JAMA
298: 786-798
[Abstract][Full Text]
Pedersen, B. K.
(2007). State of the Art Reviews: Health Benefits Related to Exercise in Patients With Chronic Low-Grade Systemic Inflammation. AMERICAN JOURNAL OF LIFESTYLE MEDICINE
1: 289-298
[Abstract]
Aadahl, M., Kjaer, M., Jorgensen, T.
(2007). Perceived exertion of physical activity: Negative association with self-rated fitness. Scand J Public Health
35: 403-409
[Abstract]
Slentz, C. A., Houmard, J. A., Johnson, J. L., Bateman, L. A., Tanner, C. J., McCartney, J. S., Duscha, B. D., Kraus, W. E.
(2007). Inactivity, exercise training and detraining, and plasma lipoproteins. STRRIDE: a randomized, controlled study of exercise intensity and amount. J. Appl. Physiol.
103: 432-442
[Abstract][Full Text]
Larry Durstine, J., Lyerly, G. W.
(2007). No physical activity or exercise is not an option. J. Appl. Physiol.
103: 417-418
[Full Text]
Ekelund, U., Franks, P. W., Sharp, S., Brage, S., Wareham, N. J.
(2007). Increase in Physical Activity Energy Expenditure Is Associated With Reduced Metabolic Risk Independent of Change in Fatness and Fitness. Diabetes Care
30: 2101-2106
[Abstract][Full Text]
Arsenault, B. J., Lachance, D., Lemieux, I., Almeras, N., Tremblay, A., Bouchard, C., Perusse, L., Despres, J.-P.
(2007). Visceral Adipose Tissue Accumulation, Cardiorespiratory Fitness, and Features of the Metabolic Syndrome. Arch Intern Med
167: 1518-1525
[Abstract][Full Text]
Fontana, L., Villareal, D. T., Weiss, E. P., Racette, S. B., Steger-May, K., Klein, S., Holloszy, J. O., and the Washington University School of Medicine C,
(2007). Calorie restriction or exercise: effects on coronary heart disease risk factors. A randomized, controlled trial. Am. J. Physiol. Endocrinol. Metab.
293: E197-E202
[Abstract][Full Text]
Kodama, S., Tanaka, S., Saito, K., Shu, M., Sone, Y., Onitake, F., Suzuki, E., Shimano, H., Yamamoto, S., Kondo, K., Ohashi, Y., Yamada, N., Sone, H.
(2007). Effect of Aerobic Exercise Training on Serum Levels of High-Density Lipoprotein Cholesterol: A Meta-analysis. Arch Intern Med
167: 999-1008
[Abstract][Full Text]
Balducci, S., Alessi, E., Cardelli, P., Cavallo, S., Fallucca, F., Pugliese, G.
(2007). Effects of Different Modes of Exercise Training on Glucose Control and Risk Factors for Complications in Type 2 Diabetic Patients: a Meta-Analysis: Response to Snowling and Hopkins. Diabetes Care
30: e25-e25
[Full Text]
Saadeh, S.
(2007). Nonalcoholic Fatty Liver Disease and Obesity. Nutr Clin Pract
22: 1-10
[Abstract][Full Text]
Wunsch, R., de Sousa, G., Toschke, A. M., Reinehr, T.
(2006). Intima-Media Thickness in Obese Children Before and After Weight Loss. Pediatrics
118: 2334-2340
[Abstract][Full Text]
Nelson, M. C., Neumark-Stzainer, D., Hannan, P. J., Sirard, J. R., Story, M.
(2006). Longitudinal and Secular Trends in Physical Activity and Sedentary Behavior During Adolescence. Pediatrics
118: e1627-e1634
[Abstract][Full Text]
TSATSOULIS, A., FOUNTOULAKIS, S.
(2006). The Protective Role of Exercise on Stress System Dysregulation and Comorbidities. Ann. N. Y. Acad. Sci.
1083: 196-213
[Abstract][Full Text]
Eriksson, K. M., Westborg, C.-J., Eliasson, M. C.E.
(2006). A randomized trial of lifestyle intervention in primary healthcare for the modification of cardiovascular risk factors The Bjorknas study. Scand J Public Health
34: 453-461
[Abstract]
Taylor, A. J.
(2006). Evidence to support aggressive management of HDL-cholesterol: implications of recent trials. Eur Heart J Suppl
8: F74-F80
[Abstract][Full Text]
Reinehr, T., de Sousa, G., Toschke, A. M., Andler, W.
(2006). Long-term follow-up of cardiovascular disease risk factors in children after an obesity intervention.. Am. J. Clin. Nutr.
84: 490-496
[Abstract][Full Text]
Slack, M. K.
(2006). Interpreting current physical activity guidelines and incorporating them into practice for health promotion and disease prevention.. Am J Health Syst Pharm
63: 1647-1653
[Full Text]
Jacobs, Kevin. A., Krauss, R. M., Fattor, J. A., Horning, M. A., Friedlander, A. L., Bauer, T. A., Hagobian, T. A., Wolfel, E. E., Brooks, G. A.
(2006). Endurance training has little effect on active muscle free fatty acid, lipoprotein cholesterol, or triglyceride net balances. Am. J. Physiol. Endocrinol. Metab.
291: E656-E665
[Abstract][Full Text]
Mittleman, M. A.
(2006). A 39-year-old woman with hypercholesterolemia.. JAMA
296: 319-326
[Abstract][Full Text]
Sigal, R. J., Kenny, G. P., Wasserman, D. H., Castaneda-Sceppa, C., White, R. D.
(2006). Physical Activity/Exercise and Type 2 Diabetes: A consensus statement from the American Diabetes Association.. Diabetes Care
29: 1433-1438
[Full Text]
Monzavi, R., Dreimane, D., Geffner, M. E., Braun, S., Conrad, B., Klier, M., Kaufman, F. R.
(2006). Improvement in Risk Factors for Metabolic Syndrome and Insulin Resistance in Overweight Youth Who Are Treated With Lifestyle Intervention. Pediatrics
117: e1111-e1118
[Abstract][Full Text]
Poirier, P., Giles, T. D., Bray, G. A., Hong, Y., Stern, J. S., Pi-Sunyer, F. X., Eckel, R. H.
(2006). Obesity and cardiovascular disease: pathophysiology, evaluation, and effect of weight loss.. Arterioscler. Thromb. Vasc. Bio.
26: 968-976
[Abstract][Full Text]
Nelson, M. C., Gordon-Larsen, P.
(2006). Physical Activity and Sedentary Behavior Patterns Are Associated With Selected Adolescent Health Risk Behaviors. Pediatrics
117: 1281-1290
[Abstract][Full Text]
Poirier, P., Giles, T. D., Bray, G. A., Hong, Y., Stern, J. S., Pi-Sunyer, F. X., Eckel, R. H.
(2006). Obesity and Cardiovascular Disease: Pathophysiology, Evaluation, and Effect of Weight Loss: An Update of the 1997 American Heart Association Scientific Statement on Obesity and Heart Disease From the Obesity Committee of the Council on Nutrition, Physical Activity, and Metabolism. Circulation
113: 898-918
[Abstract][Full Text]
Campos, P., Saguy, A., Ernsberger, P., Oliver, E., Gaesser, G.
(2006). The epidemiology of overweight and obesity: public health crisis or moral panic?. Int J Epidemiol
35: 55-60
[Full Text]
Sigal, R. J
(2005). A lifestyle intervention or metformin prevented or delayed the onset of metabolic syndrome in persons at risk. Evid. Based Med.
10: 172-172
[Full Text]
Fletcher, B., Berra, K., Ades, P., Braun, L. T., Burke, L. E., Durstine, J. L., Fair, J. M., Fletcher, G. F., Goff, D., Hayman, L. L., Hiatt, W. R., Miller, N. H., Krauss, R., Kris-Etherton, P., Stone, N., Wilterdink, J., Winston, M.
(2005). Managing Abnormal Blood Lipids: A Collaborative Approach. Circulation
112: 3184-3209
[Abstract][Full Text]
Duncan, G. E., Anton, S. D., Sydeman, S. J., Newton, R. L. Jr, Corsica, J. A., Durning, P. E., Ketterson, T. U., Martin, A. D., Limacher, M. C., Perri, M. G.
(2005). Prescribing Exercise at Varied Levels of Intensity and Frequency: A Randomized Trial. Arch Intern Med
165: 2362-2369
[Abstract][Full Text]
Noda, H., Iso, H., Toyoshima, H., Date, C., Yamamoto, A., Kikuchi, S., Koizumi, A., Kondo, T., Watanabe, Y., Wada, Y., Inaba, Y., Tamakoshi, A., and the JACC Study Group,
(2005). Walking and Sports Participation and Mortality From Coronary Heart Disease and Stroke. J Am Coll Cardiol
46: 1761-1767
[Abstract][Full Text]
(2005). 2nd International Symposium on Triglycerides and HDL: Lipid abnormalities and their treatment. Diabetes Care
28: 2795-2802
[Full Text]
Duscha, B. D., Slentz, C. A., Johnson, J. L., Houmard, J. A., Bensimhon, D. R., Knetzger, K. J., Kraus, W. E.
(2005). Effects of Exercise Training Amount and Intensity on Peak Oxygen Consumption in Middle-Age Men and Women at Risk for Cardiovascular Disease. Chest
128: 2788-2793
[Abstract][Full Text]
Slentz, C. A., Aiken, L. B., Houmard, J. A., Bales, C. W., Johnson, J. L., Tanner, C. J., Duscha, B. D., Kraus, W. E.
(2005). Inactivity, exercise, and visceral fat. STRRIDE: a randomized, controlled study of exercise intensity and amount. J. Appl. Physiol.
99: 1613-1618
[Abstract][Full Text]
Bruunsgaard, H.
(2005). Physical activity and modulation of systemic low-level inflammation. J. Leukoc. Biol.
78: 819-835
[Abstract][Full Text]
Bassuk, S. S., Manson, J. E.
(2005). Epidemiological evidence for the role of physical activity in reducing risk of type 2 diabetes and cardiovascular disease. J. Appl. Physiol.
99: 1193-1204
[Abstract][Full Text]
Margeli, A., Skenderi, K., Tsironi, M., Hantzi, E., Matalas, A.-L., Vrettou, C., Kanavakis, E., Chrousos, G., Papassotiriou, I.
(2005). Dramatic Elevations of Interleukin-6 and Acute-Phase Reactants in Athletes Participating in the Ultradistance Foot Race Spartathlon: Severe Systemic Inflammation and Lipid and Lipoprotein Changes in Protracted Exercise. J. Clin. Endocrinol. Metab.
90: 3914-3918
[Abstract][Full Text]
O'Donovan, G., Owen, A., Bird, S. R., Kearney, E. M., Nevill, A. M., Jones, D. W., Woolf-May, K.
(2005). Changes in cardiorespiratory fitness and coronary heart disease risk factors following 24 wk of moderate- or high-intensity exercise of equal energy cost. J. Appl. Physiol.
98: 1619-1625
[Abstract][Full Text]
Petrella, R. J., Lattanzio, C. N., Demeray, A., Varallo, V., Blore, R.
(2005). Can Adoption of Regular Exercise Later in Life Prevent Metabolic Risk for Cardiovascular Disease?. Diabetes Care
28: 694-701
[Abstract][Full Text]
Leon, A. S., Franklin, B. A., Costa, F., Balady, G. J., Berra, K. A., Stewart, K. J., Thompson, P. D., Williams, M. A., Lauer, M. S.
(2005). Cardiac Rehabilitation and Secondary Prevention of Coronary Heart Disease: An American Heart Association Scientific Statement From the Council on Clinical Cardiology (Subcommittee on Exercise, Cardiac Rehabilitation, and Prevention) and the Council on Nutrition, Physical Activity, and Metabolism (Subcommittee on Physical Activity), in Collaboration With the American Association of Cardiovascular and Pulmonary Rehabilitation. Circulation
111: 369-376
[Abstract][Full Text]
Roberts, C. K., Barnard, R. J.
(2005). Effects of exercise and diet on chronic disease. J. Appl. Physiol.
98: 3-30
[Abstract][Full Text]
Hittel, D. S., Kraus, W. E., Tanner, C. J., Houmard, J. A., Hoffman, E. P.
(2005). Exercise training increases electron and substrate shuttling proteins in muscle of overweight men and women with the metabolic syndrome. J. Appl. Physiol.
98: 168-179
[Abstract][Full Text]
Laaksonen, D. E., Lindstrom, J., Lakka, T. A., Eriksson, J. G., Niskanen, L., Wikstrom, K., Aunola, S., Keinanen-Kiukaanniemi, S., Laakso, M., Valle, T. T., Ilanne-Parikka, P., Louheranta, A., Hamalainen, H., Rastas, M., Salminen, V., Cepaitis, Z., Hakumaki, M., Kaikkonen, H., Harkonen, P., Sundvall, J., Tuomilehto, J., Uusitupa, M., for the Finnish Diabetes Prevention Study Group,
(2005). Physical Activity in the Prevention of Type 2 Diabetes: The Finnish Diabetes Prevention Study. Diabetes
54: 158-165
[Abstract][Full Text]
Daskalopoulou, S. S., Mikhailidis, D. P., Elisaf, M.
(2004). Prevention and Treatment of the Metabolic Syndrome. ANGIOLOGY
55: 589-612
[Abstract]
Daskalopoulou, S. S., Mikhailidis, D. P., Elisaf, M.
(2004). Prevention and Treatment of the Metabolic Syndrome. ANGIOLOGY
55: 589-612
[Abstract]
Sigal, R. J., Kenny, G. P., Wasserman, D. H., Castaneda-Sceppa, C.
(2004). Physical Activity/Exercise and Type 2 Diabetes. Diabetes Care
27: 2518-2539
[Full Text]
Brage, S., Wedderkopp, N., Ekelund, U., Franks, P. W., Wareham, N. J., Andersen, L. B., Froberg, K.
(2004). Features of the Metabolic Syndrome Are Associated With Objectively Measured Physical Activity and Fitness in Danish Children: The European Youth Heart Study (EYHS). Diabetes Care
27: 2141-2148
[Abstract][Full Text]
Laukkanen, J. A., Kurl, S., Salonen, R., Rauramaa, R., Salonen, J. T.
(2004). The predictive value of cardiorespiratory fitness for cardiovascular events in men with various risk profiles: a prospective population-based cohort study. Eur Heart J
25: 1428-1437
[Abstract][Full Text]
Landi, F., Cesari, M., Onder, G., Lattanzio, F., Gravina, E. M., Bernabei, R., on Behalf of the SilverNet-HC Study Group,
(2004). Physical Activity and Mortality in Frail, Community-Living Elderly Patients. J. Gerontol. A Biol. Sci. Med. Sci.
59: M833-M837
[Abstract][Full Text]
Bosse, Y., Perusse, L., Vohl, M.-C.
(2004). Genetics of LDL particle heterogeneity: from genetic epidemiology to DNA-based variations. J. Lipid Res.
45: 1008-1026
[Abstract][Full Text]
Krauss, R. M.
(2004). Lipids and Lipoproteins in Patients With Type 2 Diabetes. Diabetes Care
27: 1496-1504
[Abstract][Full Text]
Olchawa, B., Kingwell, B. A., Hoang, A., Schneider, L., Miyazaki, O., Nestel, P., Sviridov, D.
(2004). Physical Fitness and Reverse Cholesterol Transport. Arterioscler. Thromb. Vasc. Bio.
24: 1087-1091
[Abstract][Full Text]
Reinehr, T, Andler, W
(2004). Changes in the atherogenic risk factor profile according to degree of weight loss. Arch. Dis. Child.
89: 419-422
[Abstract][Full Text]
Pynn, M., Schafer, K., Konstantinides, S., Halle, M.
(2004). Exercise Training Reduces Neointimal Growth and Stabilizes Vascular Lesions Developing After Injury in Apolipoprotein E-Deficient Mice. Circulation
109: 386-392
[Abstract][Full Text]
Slentz, C. A., Duscha, B. D., Johnson, J. L., Ketchum, K., Aiken, L. B., Samsa, G. P., Houmard, J. A., Bales, C. W., Kraus, W. E.
(2004). Effects of the Amount of Exercise on Body Weight, Body Composition, and Measures of Central Obesity: STRRIDE--A Randomized Controlled Study. Arch Intern Med
164: 31-39
[Abstract][Full Text]
Houmard, J. A., Tanner, C. J., Slentz, C. A., Duscha, B. D., McCartney, J. S., Kraus, W. E.
(2004). Effect of the volume and intensity of exercise training on insulin sensitivity. J. Appl. Physiol.
96: 101-106
[Abstract][Full Text]
Carnethon, M. R., Gidding, S. S., Nehgme, R., Sidney, S., Jacobs, D. R. Jr, Liu, K.
(2003). Cardiorespiratory Fitness in Young Adulthood and the Development of Cardiovascular Disease Risk Factors. JAMA
290: 3092-3100
[Abstract][Full Text]
Oparil, S.
(2003). Improving outcomes for women after coronary artery bypass grafting: A case for prevention. J. Thorac. Cardiovasc. Surg.
126: 1704-1706
[Full Text]
Barzilai, N., Atzmon, G., Schechter, C., Schaefer, E. J., Cupples, A. L., Lipton, R., Cheng, S., Shuldiner, A. R.
(2003). Unique Lipoprotein Phenotype and Genotype Associated With Exceptional Longevity. JAMA
290: 2030-2040
[Abstract][Full Text]
Brainin, M.
(2003). Editorial Commen: Physical Exercise and Stroke: The Sitting Majority Has a Lesson to Learn. Stroke
34: 2481-2482
[Full Text]
Mark, D. B., Lauer, M. S.
(2003). Exercise Capacity: The Prognostic Variable That Doesn't Get Enough Respect. Circulation
108: 1534-1536
[Full Text]
Leyden, K. M.
(2003). Social Capital and the Built Environment: The Importance of Walkable Neighborhoods. Am. J. Public Health
93: 1546-1551
[Abstract][Full Text]
Seddon, J. M., Cote, J., Davis, N., Rosner, B.
(2003). Progression of Age-Related Macular Degeneration: Association With Body Mass Index, Waist Circumference, and Waist-Hip Ratio. Arch Ophthalmol
121: 785-792
[Abstract][Full Text]
Sharma, A. M., Schmidt-Trucksass, A., Mascitelli, L., Pezzetta, F., Slentz, C. A., Kraus, W. E., Tall, A. R.
(2003). Effects of Exercise on Plasma Lipoproteins. NEJM
348: 1494-1496
[Full Text]
Lee, I-M., Sesso, H. D., Oguma, Y., Paffenbarger, R. S. Jr
(2003). Relative Intensity of Physical Activity and Risk of Coronary Heart Disease. Circulation
107: 1110-1116
[Abstract][Full Text]
Sheps, D. S., Freedland, K. E., Golden, R. N., McMahon, R. P.
(2003). ENRICHD and SADHART: Implications for Future Biobehavioral Intervention Efforts. Psychosom. Med.
65: 1-2
[Full Text]
(2002). Effects of Exercise on Lipoproteins. JWatch General
2002: 3-3
[Full Text]
Tall, A. R.
(2002). Exercise to Reduce Cardiovascular Risk -- How Much Is Enough?. NEJM
347: 1522-1524
[Full Text]