• 1
    Friedenreich CM. Physical activity and breast cancer: review of the epidemiologic evidence and biologic mechanisms. Recent Results Cancer Res 2011;188:12539.
  • 2
    McTiernan A, Tworoger SS, Ulrich CM, et al. Effect of exercise on serum estrogens in postmenopausal women: a 12-month randomized clinical trial. Cancer Res 2004;64:292328.
  • 3
    Monninkhof EM, Velthuis MJ, Peeters PH, et al. Effect of exercise on postmenopausal sex hormone levels and role of body fat: a randomized controlled trial. J Clin Oncol 2009;27:449299.
  • 4
    Friedenreich CM, Woolcott CG, McTiernan A, et al. Alberta physical activity and breast cancer prevention trial: sex hormone changes in a year-long exercise intervention among postmenopausal women. J Clin Oncol 2010;28:145866.
  • 5
    Liedtke S, Schmidt ME, Becker S, et al. Physical activity and endogenous sex hormones in postmenopausal women: to what extent are observed associations confounded or modified by BMI? Cancer Causes Control 2011;22:8189.
  • 6
    Mason C, Foster-Schubert KE, Imayama I, et al. Dietary weight loss and exercise effects on insulin resistance in postmenopausal women. Am J Prev Med 2011;41:36675.
  • 7
    Friedenreich CM, Neilson HK, Woolcott CG, et al. Changes in insulin resistance indicators, insulin-like growth factors, and adipokines in a year-long trial of aerobic exercise in postmenopausal women. Endocr Relat Cancer 2011;18:35769.
  • 8
    Friedenreich CM, Neilson HK, Woolcott CG, et al. Inflammatory marker changes in a year-long randomized exercise intervention trial among postmenopausal women. Cancer Prev Res (Phila) 2012;5:98108.
  • 9
    Campbell PT, Campbell KL, Wener MH, et al. A yearlong exercise intervention decreases CRP among obese postmenopausal women. Med Sci Sports Exerc 2009;41:153339.
  • 10
    Schmidt ME, Steindorf K, Mutschelknauss E, et al. Physical activity and postmenopausal breast cancer: effective periods in life and effect modification by different breast cancer characteristics. Cancer Epidemiol Biomarkers Prev 2008;17:340210.
  • 11
    Friedenreich CM, Courneya KS, Bryant HE. Influence of physical activity in different age and life periods on the risk of breast cancer. Epidemiology 2001;12:60412.
  • 12
    Moradi T, Nyren O, Zack M, et al. Breast cancer risk and lifetime leisure-time and occupational physical activity (Sweden). Cancer Causes Control 2000;11:52331.
  • 13
    Steindorf K, Ritte R, Tjonneland A, et al. Prospective Study on Physical Activity and Risk of In Situ Breast Cancer. Cancer Epidemiol Biomarkers Prev, 2012;21:2209–19.
  • 14
    Ibrahim EM, Al-Homaidh A. Physical activity and survival after breast cancer diagnosis: meta-analysis of published studies. Med Oncol 2011;28:75365.
  • 15
    Friedenreich CM, Gregory J, Kopciuk KA, et al. Prospective cohort study of lifetime physical activity and breast cancer survival. Int J Cancer 2009;124:195462.
  • 16
    West-Wright CN, Henderson KD, Sullivan-Halley J, et al. Long-term and recent recreational physical activity and survival after breast cancer: the California Teachers Study. Cancer Epidemiol Biomarkers Prev 2009;18:285159.
  • 17
    Keegan TH, Milne RL, Andrulis IL, et al. Past recreational physical activity, body size, and all-cause mortality following breast cancer diagnosis: results from the Breast Cancer Family Registry. Breast Cancer Res Treat 2010;123:53142.
  • 18
    Irwin ML, McTiernan A, Manson JE, et al. Physical activity and survival in postmenopausal women with breast cancer: results from the women's health initiative. Cancer Prev Res (Phila) 2011;4:52229.
  • 19
    Cleveland RJ, Eng SM, Stevens J, et al. Influence of prediagnostic recreational physical activity on survival from breast cancer. Eur J Cancer Prev 2012;21:4654.
  • 20
    Beasley JM, Kwan ML, Chen WY, et al. Meeting the physical activity guidelines and survival after breast cancer: findings from the after breast cancer pooling project. Breast Cancer Res Treat 2012;131:63743.
  • 21
    Holmes MD, Chen WY, Feskanich D, et al. Physical activity and survival after breast cancer diagnosis. JAMA 2005;293:247986.
  • 22
    Flesch-Janys D, Slanger T, Mutschelknauss E, et al. Risk of different histological types of postmenopausal breast cancer by type and regimen of menopausal hormone therapy. Int J Cancer 2008;123:93341.
  • 23
    Schmidt ME, Slanger T, Chang-Claude J, et al. Evaluation of a short retrospective questionnaire for physical activity in women. Eur J Epidemiol 2006;21:57585.
  • 24
    Ainsworth BE, Haskell WL, Whitt MC, et al. Compendium of physical activities: an update of activity codes and MET intensities. Med Sci Sports Exerc 2000;32:S498S504.
  • 25
    Ainsworth BE, Haskell WL, Leon AS, et al. Compendium of physical activities: classification of energy costs of human physical activities. Med Sci Sports Exerc 1993;25:7180.
  • 26
    Schemper M, Smith TL. A note on quantifying follow-up in studies of failure time. Control Clin Trials 1996;17:34346.
  • 27
    Textor J, Hardt J, Knuppel S. DAGitty: a graphical tool for analyzing causal diagrams. Epidemiology 2011;22:745.
  • 28
    Royston P, Ambler G, Sauerbrei W. The use of fractional polynomials to model continuous risk variables in epidemiology. Int J Epidemiol 1999;28:96474.
  • 29
    Allison PD. Survival analysis using the SAS system. Cary, NC: SAS institute Inc., 1995. 15557.
  • 30
    Rohan TE, Fu W, Hiller JE. Physical activity and survival from breast cancer. Eur J Cancer Prev 1995;4:41924.
  • 31
    Enger SM, Bernstein L. Exercise activity, body size and premenopausal breast cancer survival. Br J Cancer 2004;90:213841.
  • 32
    Irwin ML, Smith AW, McTiernan A, et al. Influence of pre- and postdiagnosis physical activity on mortality in breast cancer survivors: the health, eating, activity, and lifestyle study. J Clin Oncol 2008;26:395864.
  • 33
    Pierce JP, Stefanick ML, Flatt SW, et al. Greater survival after breast cancer in physically active women with high vegetable-fruit intake regardless of obesity. J Clin Oncol 2007;25:234551.
  • 34
    Holick CN, Newcomb PA, Trentham-Dietz A, et al. Physical activity and survival after diagnosis of invasive breast cancer. Cancer Epidemiol Biomarkers Prev 2008;17:37986.
  • 35
    Andrykowski MA, Beacham AO, Jacobsen PB. Prospective, longitudinal study of leisure-time exercise in women with early-stage breast cancer. Cancer Epidemiol Biomarkers Prev 2007;16:430438.
  • 36
    Emery CF, Yang HC, Frierson GM, et al. Determinants of physical activity among women treated for breast cancer in a 5-year longitudinal follow-up investigation. Psychooncology 2009;18:37786.
  • 37
    Huy C, Schmidt M, Flesch-Janys D, et al. Physical activity in a German breast cancer patient cohort: one-year trends and characteristics associated with change in activity level. Eur J Cancer 2012;48:297304.
  • 38
    Bock C, Schmidt ME, Vrieling A, et al. Walking, bicycling, and sports in postmenopausal breast cancer survivors-results from a German patient cohort study. Psychooncology, 2012 epub; doi:10.1002/pon.3134.
  • 39
    Borugian MJ, Sheps SB, Kim-Sing C, et al. Insulin, macronutrient intake, and physical activity: are potential indicators of insulin resistance associated with mortality from breast cancer? Cancer Epidemiol Biomarkers Prev 2004;13:116372.
  • 40
    Dal Maso L, Zucchetto A, Talamini R, et al. Effect of obesity and other lifestyle factors on mortality in women with breast cancer. Int J Cancer 2008;123:218894.
  • 41
    Kodama S, Saito K, Tanaka S, et al. Cardiorespiratory fitness as a quantitative predictor of all-cause mortality and cardiovascular events in healthy men and women: a meta-analysis. JAMA 2009;301:202435.
  • 42
    Samitz G, Egger M, Zwahlen M. Domains of physical activity and all-cause mortality: systematic review and dose-response meta-analysis of cohort studies. Int J Epidemiol 2011;40:1382400.
  • 43
    Schmitz KH, Courneya KS, Matthews C, et al. American College of Sports Medicine roundtable on exercise guidelines for cancer survivors. Med Sci Sports Exerc 2010;42:140926.
  • 44
    Rock CL, Doyle C, Demark-Wahnefried W, et al. Nutrition and physical activity guidelines for cancer survivors. CA Cancer J Clin 2012;62:24374.