Method testing

Ainsworth, B. E., et al. (2000). "Comparison of three methods for measuring the time spent in physical activity." Med Sci Sports Exerc 32: S457-64.

Ainsworth, B. E., et al. (2006). "Comparison of the 2001 BRFSS and the IPAQ Physical Activity Questionnaires." Med Sci Sports Exerc 38: 1584-92.

Arvidsson, D., F. Slinde and L. Hulthen (2005). "Physical activity questionnaire for adolescents validated against doubly labelled water." Eur J Clin Nutr 59: 376-83.

Brown, W., A. Bauman, T. Chey, S. Trost and K. Mummery (2004). "Comparison of surveys used to measure physical activity." Aust N Z J Public Health 28: 128-34.

Brown, W. and Y. Miller (2005). "International differences in management of physical activity data: can they explain some of the differences in prevalence estimates?" J Phys Act Health 2: 460-469.

Brown, W. J., S. G. Trost, A. Bauman, K. Mummery and N. Owen (2004). "Test-retest reliability of four physical activity measures used in population surveys." J Sci Med Sport 7: 205-15.

Craig, C. L., et al. (2003). "International physical activity questionnaire: 12-country reliability and validity." Med Sci Sports Exerc 35: 1381-95.

Ekelund, U., et al. (2006). "Criterion-related validity of the last 7-day, short form of the International Physical Activity Questionnaire in Swedish adults." Public Health Nutr 9: 258-65.

Faulkner, G., T. Cohn and G. Remington (2006). "Validation of a physical activity assessment tool for individuals with schizophrenia." Schizophr Res 82: 225-31.

Fogelholm, M., et al. (2006). "International Physical Activity Questionnaire: Validity against fitness." Med Sci Sports Exerc 38: 753-60.

Hagstromer, M., P. Oja and M. Sjostrom (2006). "The International Physical Activity Questionnaire (IPAQ): a study of concurrent and construct validity." Public Health Nutr 9: 755-62.

Hallal, P. C. and C. G. Victora (2004). "Reliability and validity of the International Physical Activity Questionnaire (IPAQ)." Med Sci Sports Exerc 36: 556.

Johnson-Kozlow, M., J. F. Sallis, E. A. Gilpin, C. L. Rock and J. P. Pierce (2006). "Comparative validation of the IPAQ and the 7-Day PAR among women diagnosed with breast cancer." Int J Behav Nutr Phys Act 3: 7.

Kolbe-Alexander, T. L., E. V. Lambert, J. B. Harkins and U. Ekelund (2006). "Comparison of two methods of measuring physical activity in South African older adults." J Aging Phys Act 14: 98-114.

Macfarlane, D., C. Lee, E. Ho, K. L. Chan and D. Chan (2006). "Convergent validity of six methods to assess physical activity in daily life." J Appl Physiol.

Macfarlane, D. J., C. C. Lee, E. Y. Ho, K. L. Chan and D. T. Chan (2006). "Reliability and validity of the Chinese version of IPAQ (short, last 7 days)." J Sci Med Sport.

Mader, U., B. W. Martin, Y. Schutz and B. Marti (2006). "Validity of four short physical activity questionnaires in middle-aged persons." Med Sci Sports Exerc 38: 1255-66.

Rzewnicki, R., Y. Vanden Auweele and I. De Bourdeaudhuij (2003). "Addressing overreporting on the International Physical Activity Questionnaire (IPAQ) telephone survey with a population sample." Public Health Nutr 6: 299-305.

Tehard, B., et al. (2005). "Comparison of two physical activity questionnaires in obese subjects: the NUGENOB study." Med Sci Sports Exerc 37: 1535-41.

Timperio, A., J. Salmon, M. Rosenberg and F. C. Bull (2004). "Do logbooks influence recall of physical activity in validation studies?" Med Sci Sports Exerc 36: 1181-6.

Vandelanotte, C., I. De Bourdeaudhuij, R. Philippaerts, M. Sjöström and J. F. Sallis (2005). "Reliability and validity of a computerized and Dutch version of the International Physical Activity Questionnaire (IPAQ)." J Phys Act Health 2: 63-75.

Gauthier, A. P., Larivière, M., & Young, N. L. (In press). Psychometric properties of the IPAQ: A validation study in a sample of northern Franco-Ontarians. Journal of Physical Activity and Health.

IPAQ in use

(Alphabetical order)

Abu-Omar K, Rutten A. 2008. Relation of leisure time, occupational, domestic, and commuting physical activity to health indicators in Europe. Prev Med 47:319-23

Abu-Omar K, Rutten A, Lehtinen V. 2004a. Mental health and physical activity in the European Union. Soz Praventivmed 49:301-9

Abu-Omar K, Rutten A, Robine JM. 2004b. Self-rated health and physical activity in the European Union. Soz Praventivmed 49:235-42

Al-Hazzaa HM. 2007. Health-enhancing physical activity among Saudi adults using the International Physical Activity Questionnaire (IPAQ). Public Health Nutr 10:59-64

Amorim PR, de Faria RC, Byrne NM, Hills AP. 2006. Physical activity and nutritional status of children of low socioeconomic status. Two interrelated problems: undernutrition and overweight. Asia Pac J Clin Nutr 15:217-23

Amorim TC, Azevedo MR, Hallal PC. 2010. Physical activity levels according to physical and social environmental factors in a sample of adults living in South Brazil. J Phys Act Health 7 Suppl 2:S204-12

Araujo-Soares V, McIntyre T, MacLennan G, Sniehotta FF. 2009. Development and exploratory cluster-randomised opportunistic trial of a theory-based intervention to enhance physical activity among adolescents. Psychol Health 24:805-22

Avin KG, Naughton MR, Ford BW, Moore HE, Monitto-Webber MN, et al. 2010. Sex differences in fatigue resistance are muscle group dependent. Med Sci Sports Exerc 42:1943-50

Azevedo MR, Araujo CL, Cozzensa da Silva M, Hallal PC. 2007a. Tracking of physical activity from adolescence to adulthood: a population-based study. Rev Saude Publica 41:69-75

Azevedo MR, Araujo CL, Reichert FF, Siqueira FV, da Silva MC, Hallal PC. 2007b. Gender differences in leisure-time physical activity. Int J Public Health 52:8-15

Azevedo MR, Horta BL, Gigante DP, Victora CG, Barros FC. 2008. [Factors associated to leisure-time sedentary lifestyle in adults of 1982 birth cohort, Pelotas, Southern Brazil]. Rev Saude Publica 42 Suppl 2:70-7

Bassett DR, Jr., Tremblay MS, Esliger DW, Copeland JL, Barnes JD, Huntington GE. 2007. Physical activity and body mass index of children in an old order Amish community. Med Sci Sports Exerc 39:410-5

Basso RP, Jamami M, Pessoa BV, Labadessa IG, Regueiro EM, Di Lorenzo VA. 2010. Assessment of exercise capacity among asthmatic and healthy adolescents. Rev Bras Fisioter 14:252-8

Bauman A, Ainsworth BE, Bull F, Craig CL, Hagstromer M, et al. 2009. Progress and pitfalls in the use of the International Physical Activity Questionnaire (IPAQ) for adult physical activity surveillance. J Phys Act Health 6 Suppl 1:S5-8

Bauman AB, F. Chey T. Craig CL. 2009. The IPS Group The International Prevalence Study on Physical Activity: results from 20 countries International journal behavioral nutrition and physical activity 31:21

Belander O, Torstveit MK, Sundgot-Borgen J. 2004. [Are young Norwegian women sufficiently physically active?]. Tidsskr Nor Laegeforen 124:2488-9

Benedetti TR, Borges LJ, Petroski EL, Goncalves LH. 2008. [Physical activity and mental health status among elderly people]. Rev Saude Publica 42:302-7

Bergman P, Grjibovski AM, Hagstromer M, Bauman A, Sjostrom M. 2008. Adherence to physical activity recommendations and the influence of socio-demographic correlates - a population-based cross-sectional study. BMC Public Health 8:367

Bergman P, Grjibovski AM, Hagstromer M, Patterson E, Sjostrom M. 2010. Congestion road tax and physical activity. Am J Prev Med 38:171-7

Bertoldi AD, Hallal PC, Barros AJ. 2006. Physical activity and medicine use: evidence from a population-based study. BMC Public Health 6:224

Bertolotto A, Volpe L, Calianno A, Pugliese MC, Lencioni C, et al. 2010. Physical activity and dietary habits during pregnancy: effects on glucose tolerance. J Matern Fetal Neonatal Med 23:1310-4

Bond DS, Evans RK, DeMaria EJ, Wolfe LG, Meador JG, et al. 2006. Physical activity stage of readiness predicts moderate-vigorous physical activity participation among morbidly obese gastric bypass surgery candidates. Surg Obes Relat Dis 2:128-32

Bond DS, Phelan S, Wolfe LG, Evans RK, Meador JG, et al. 2009. Becoming physically active after bariatric surgery is associated with improved weight loss and health-related quality of life. Obesity (Silver Spring) 17:78-83

Bowles HR, Merom D, Chey T, Smith BJ, Bauman A. 2007. Associations of type, organization, and number of recreational activities with total activity. J Phys Act Health 4:469-80

Byrd-Williams CE, Strother ML, Kelly LA, Huang TT. 2009. Dietary fiber and associations with adiposity and fasting insulin among college students with plausible dietary reports. Nutrition 25:896-904

Castetbon K, Vernay M, Malon A, Salanave B, Deschamps V, et al. 2009. Dietary intake, physical activity and nutritional status in adults: the French nutrition and health survey (ENNS, 2006-2007). Br J Nutr 102:733-43

Ceschini FL, Andrade DR, Oliveira LC, Araujo Junior JF, Matsudo VK. 2009. Prevalence of physical inactivity and associated factors among high school students from state's public schools. J Pediatr (Rio J) 85:301-6

Choi J, Wilbur J, Miller A, Szalacha L, McAuley E. 2008. Correlates of leisure-time physical activity in Korean immigrant women. West J Nurs Res 30:620-38

Cleland V, Ball K, Hume C, Timperio A, King AC, Crawford D. 2010. Individual, social and environmental correlates of physical activity among women living in socioeconomically disadvantaged neighbourhoods. Soc Sci Med 70:2011-8

Cleland V, Dwyer T, Blizzard L, Venn A. 2008. The provision of compulsory school physical activity: Associations with physical activity, fitness and overweight in childhood and twenty years later. Int J Behav Nutr Phys Act 5:14

Craig CL, Marshall AL, Sjostrom M, Bauman AE, Booth ML, et al. 2003. International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc 35:1381-95

D'Angelo E, Di Blasio A, Di Donato F, Di Gregorio S, Di Renzo D, Ripari P. 2010. Relationships between physical exercise practice, dietary behaviour and body composition in female university students. J Sports Med Phys Fitness 50:311-7

da Silva RB, Costa-Paiva L, Pinto-Neto AM, Braga Ade A, Morais SS. 2005. Association between habitual physical activity and parameters of physical fitness in postmenopausal women. Climacteric 8:360-70

Dalacorte RR, Reichert CL, Vieira JL. 2009. Metabolic syndrome and physical activity in southern Brazilian community-dwelling elders: a population-based, cross-sectional study. BMC Public Health 9:25

De Bourdeaudhuij I, Sallis JF, Saelens BE. 2003. Environmental correlates of physical activity in a sample of Belgian adults. Am J Health Promot 18:83-92

De Bourdeaudhuij I, Teixeira PJ, Cardon G, Deforche B. 2005. Environmental and psychosocial correlates of physical activity in Portuguese and Belgian adults. Public Health Nutr 8:886-95

De Cocker K, Ottevaere C, Sjostrom M, Moreno LA, Warnberg J, et al. 2010. Self-reported physical activity in European adolescents: results from the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study. Public Health Nutr:1-9

De Cocker KA, De Bourdeaudhuij IM, Brown WJ, Cardon GM. 2007. Effects of "10,000 steps Ghent": a whole-community intervention. Am J Prev Med 33:455-63

De Cocker KA, De Bourdeaudhuij IM, Brown WJ, Cardon GM. 2008a. The effect of a pedometer-based physical activity intervention on sitting time. Prev Med 47:179-81

De Cocker KA, De Bourdeaudhuij IM, Cardon GM. 2008b. The effect of pedometer use in combination with cognitive and behavioral support materials to promote physical activity. Patient Educ Couns 70:209-14

Derbyshire E, Davies J, Costarelli V, Dettmar P. 2006. Diet, physical inactivity and the prevalence of constipation throughout and after pregnancy. Matern Child Nutr 2:127-34

Dinger MK, Heesch KC, Cipriani G, Qualls M. 2007. Comparison of two email-delivered, pedometer-based interventions to promote walking among insufficiently active women. J Sci Med Sport 10:297-302

Evans RK, Bond DS, Wolfe LG, Meador JG, Herrick JE, et al. 2007. Participation in 150 min/wk of moderate or higher intensity physical activity yields greater weight loss after gastric bypass surgery. Surg Obes Relat Dis 3:526-30

Fillipas S, Bowtell-Harris CA, Oldmeadow LB, Cicuttini F, Holland AE, Cherry CL. 2008. Physical activity uptake in patients with HIV: who does how much? Int J STD AIDS 19:514-8

Fisher L, Glasgow RE, Mullan JT, Skaff MM, Polonsky WH. 2008. Development of a brief diabetes distress screening instrument. Ann Fam Med 6:246-52

FitzGerald L, Carpenter C. 2010. Bone mineral density results influencing health-related behaviors in male athletes at risk for osteoporosis. J Clin Densitom 13:256-62

Florindo AA, Guimaraes VV, Cesar CL, Barros MB, Alves MC, Goldbaum M. 2009. Epidemiology of leisure, transportation, occupational, and household physical activity: prevalence and associated factors. J Phys Act Health 6:625-32

Frank L, Kerr J, Saelens B, Sallis J, Glanz K, Chapman J. 2009. Food outlet visits, physical activity and body weight: variations by gender and race-ethnicity. Br J Sports Med 43:124-31

Fromel K, Mitas J, Kerr J. 2009. The associations between active lifestyle, the size of a community and SES of the adult population in the Czech Republic. Health Place 15:447-54

Galuska DA, Fulton JE. 2009. Physical activity surveillance: providing public health data for decision makers. J Phys Act Health 6 Suppl 1:S1-2

Gentil P, Lima RM, Lins TC, Abreu BS, Pereira RW, Oliveira RJ. 2007. Physical activity, Cdx-2 genotype, and BMD. Int J Sports Med 28:1065-9

Gomez LF, Mateus JC, Cabrera G. 2004. Leisure-time physical activity among women in a neighbourhood in Bogota, Colombia: prevalence and socio-demographic correlates. Cad Saude Publica 20:1103-9

Guthold R, Ono T, Strong KL, Chatterji S, Morabia A. 2008. Worldwide variability in physical inactivity a 51-country survey. Am J Prev Med 34:486-94

Haerens L, Maes L, Vereecken C, De Henauw S, Moreno L, De Bourdeaudhuij I. 2009. Effectiveness of a computer tailored physical activity intervention in adolescents compared to a generic advice. Patient Educ Couns 77:38-41

Hagströmer M BP, Bauman A. 2006. The International prevalence study (IPS): health enhancing physical activity in Sweden. Journal of Public Health 14:301-8

Hallal P, Siqueira FV. 2004. Compliance with vigorous physical activity guidelines in Brazilian adults: prevalence and correlates. Journal of Physical Activity and Health 1:389-900

Hallal PC, Azevedo MR, Reichert FF, Siqueira FV, Araujo CL, Victora CG. 2005a. Who, when, and how much? Epidemiology of walking in a middle-income country. Am J Prev Med 28:156-61

Hallal PC, Matsudo SM, Matsudo VK, Araujo TL, Andrade DR, Bertoldi AD. 2005b. Physical activity in adults from two Brazilian areas: similarities and differences. Cad Saude Publica 21:573-80

Hallal PC, Reichert FF, Siqueira FV, Dumith SC, Bastos JP, et al. 2008. Correlates of leisure-time physical activity differ by body-mass-index status in Brazilian adults. J Phys Act Health 5:571-8

Hallal PC, Reis RS, Parra DC, Hoehner C, Brownson RC, Simoes EJ. 2010. Association between perceived environmental attributes and physical activity among adults in Recife, Brazil. J Phys Act Health 7 Suppl 2:S213-22

Hallal PC, Victora CG, Wells JC, Lima RC. 2003. Physical inactivity: prevalence and associated variables in Brazilian adults. Med Sci Sports Exerc 35:1894-900

Hansen AM, Blangsted AK, Hansen EA, Sogaard K, Sjogaard G. 2010. Physical activity, job demand-control, perceived stress-energy, and salivary cortisol in white-collar workers. Int Arch Occup Environ Health 83:143-53

Horn DB, O'Neill JR, Pfeiffer KA, Dowda M, Pate RR. 2008. Predictors of physical activity in the transition after high school among young women. J Phys Act Health 5:275-85

Huang SJ, Hung WC, Sharpe PA, Wai JP. 2010. Neighborhood environment and physical activity among urban and rural schoolchildren in Taiwan. Health Place 16:470-6

Ince ML. 2008. Use of a social cognitive theory-based physical-activity intervention on health-promoting behaviors of university students. Percept Mot Skills 107:833-6

Inoue S, Murase N, Shimomitsu T, Ohya Y, Odagiri Y, et al. 2009. Association of physical activity and neighborhood environment among Japanese adults. Prev Med 48:321-5

Ishii K, Shibata A, Oka K. 2010. Environmental, psychological, and social influences on physical activity among Japanese adults: structural equation modeling analysis. Int J Behav Nutr Phys Act 7:61

Jozkow P, Slowinska-Lisowska M, Laczmanski L, Medras M, Trzmiel A, Kuliczkowska-Plaksej J. 2009. CAG repeat polymorphism in the androgen receptor gene and the level of physical activity (HALS Study). J Sports Med Phys Fitness 49:453-8

Jozkow P, Wasko-Czopnik D, Dunajska K, Medras M, Paradowski L. 2007. The relationship between gastroesophageal reflux disease and the level of physical activity. Swiss Med Wkly 137:465-70

Jurakic D, Pedisic Z, Andrijasevic M. 2009. Physical activity of Croatian population: cross-sectional study using International Physical Activity Questionnaire. Croat Med J 50:165-73

Katano S, Nakamura Y, Nakamura A, Murakami Y, Tanaka T, et al. 2010. Relationship among physical activity, smoking, drinking and clustering of the metabolic syndrome diagnostic components. J Atheroscler Thromb 17:644-50

Kavouras SA, Panagiotakos DB, Pitsavos C, Chrysohoou C, Anastasiou CA, et al. 2007. Physical activity, obesity status, and glycemic control: The ATTICA study. Med Sci Sports Exerc 39:606-11

Kerr J, Norman GJ, Sallis JF, Patrick K. 2008. Exercise aids, neighborhood safety, and physical activity in adolescents and parents. Med Sci Sports Exerc 40:1244-8

Lau SL, Debarm R, Thomas N, Asha HS, Vasan KS, et al. 2009. Healthcare planning in north-east India: a survey on diabetes awareness, risk factors and health attitudes in a rural community. J Assoc Physicians India 57:305-9

Leite LH, Sampaio AB. 2010. Dietary calcium, dairy food intake and metabolic abnormalities in HIV-infected individuals. J Hum Nutr Diet 23:535-43

Li M, Li L, Fan X. 2010. Patients having haemodialysis: physical activity and associated factors. J Adv Nurs 66:1338-45

Luk TH, Dai YL, Siu CW, Yiu KH, Chan HT, et al. 2009. Habitual physical activity is associated with endothelial function and endothelial progenitor cells in patients with stable coronary artery disease. Eur J Cardiovasc Prev Rehabil 16:464-71

Mai KS, Sandbaek A, Borch-Johnsen K, Lauritzen T. 2007. Are lifestyle changes achieved after participation in a screening programme for Type 2 diabetes? The ADDITION Study, Denmark. Diabet Med 24:1121-8

Martins LC, Guedes NG, Teixeira IX, de Oliveira Lopes MV, de Araujo TL. 2009. Physical activity level in people with high blood pressure. Rev Lat Am Enfermagem 17:462-7

Martins Mdo C, Ricarte IF, Rocha CH, Maia RB, Silva VB, et al. 2010. Blood pressure, excess weight and level of physical activity in students of a public university. Arq Bras Cardiol 95:192-9

Masterson Creber RM, Smeeth L, Gilman RH, Miranda JJ. 2010. Physical activity and cardiovascular risk factors among rural and urban groups and rural-to-urban migrants in Peru: a cross-sectional study. Rev Panam Salud Publica 28:1-8

Mazis N, Papachristou DJ, Zouboulis P, Tyllianakis M, Scopa CD, Megas P. 2009. The effect of different physical activity levels on muscle fiber size and type distribution of lumbar multifidus. A biopsy study on low back pain patient groups and healthy control subjects. Eur J Phys Rehabil Med 45:459-67

McGrady FP, McGlade KJ, Cupples ME, Tully MA, Hart N, Steele K. 2007. Questionnaire survey of PHysical activITy in General Practitioners (PHIT GP Study). Ulster Med J 76:91-7

McIver S, O'Halloran P, McGartland M. 2009. Yoga as a treatment for binge eating disorder: a preliminary study. Complement Ther Med 17:196-202

McKercher CM, Schmidt MD, Sanderson KA, Patton GC, Dwyer T, Venn AJ. 2009. Physical activity and depression in young adults. Am J Prev Med 36:161-4

Mendonca BC, Oliveira AC, Toscano JJO, Knuth AG, Borges TT, et al. 2010. Exposure to a community-wide physical activity promotion program and leisure-time physical activity in Aracaju, Brazil. J Phys Act Health 7 Suppl 2:S223-8

Metsios GS, Stavropoulos-Kalinoglou A, Douglas KM, Koutedakis Y, Nevill AM, et al. 2007. Blockade of tumour necrosis factor-alpha in rheumatoid arthritis: effects on components of rheumatoid cachexia. Rheumatology (Oxford) 46:1824-7

Metsios GS, Stavropoulos-Kalinoglou A, Panoulas VF, Wilson M, Nevill AM, et al. 2009. Association of physical inactivity with increased cardiovascular risk in patients with rheumatoid arthritis. Eur J Cardiovasc Prev Rehabil 16:188-94

Naal FD, Impellizzeri FM, Loibl M, Huber M, Rippstein PF. 2009. Habitual physical activity and sports participation after total ankle arthroplasty. Am J Sports Med 37:95-102

Ng V, Rush TJ, He M, Irwin JD. 2007. Activity and obesity of Colombian immigrants in Canada who use a food bank. Percept Mot Skills 105:681-7

Nygaard I, Girts T, Fultz NH, Kinchen K, Pohl G, Sternfeld B. 2005. Is urinary incontinence a barrier to exercise in women? Obstet Gynecol 106:307-14

Oechsle K, Jensen W, Schmidt T, Reer R, Braumann KM, et al. 2010. Physical activity, quality of life, and the interest in physical exercise programs in patients undergoing palliative chemotherapy. Support Care Cancer

Ogilvie D, Mitchell R, Mutrie N, Petticrew M, Platt S. 2008. Personal and environmental correlates of active travel and physical activity in a deprived urban population. Int J Behav Nutr Phys Act 5:43

Opdenacker J, Boen F, Coorevits N, Delecluse C. 2008. Effectiveness of a lifestyle intervention and a structured exercise intervention in older adults. Prev Med 46:518-24

Ortiz-Hernandez L, Ramos-Ibanez N. 2010. Sociodemographic factors associated with physical activity in Mexican adults. Public Health Nutr 13:1131-8

Pan SY, Cameron C, Desmeules M, Morrison H, Craig CL, Jiang X. 2009. Individual, social, environmental, and physical environmental correlates with physical activity among Canadians: a cross-sectional study. BMC Public Health 9:21

Panagiotakos DB, Polystipioti A, Polychronopoulos E. 2007. Prevalence of type 2 diabetes and physical activity status in elderly men and women from Cyprus (the MEDIS Study). Asia Pac J Public Health 19:22-8

Paparrigopoulos T, Tzavara C, Theleritis C, Psarros C, Soldatos C, Tountas Y. 2010a. Insomnia and its correlates in a representative sample of the Greek population. BMC Public Health 10:531

Paparrigopoulos T, Tzavara C, Theleritis C, Soldatos C, Tountas Y. 2010b. Physical activity may promote sleep in cardiac patients suffering from insomnia. Int J Cardiol 143:209-11

Paunksnis A, Kusleika S, Kusleikaite M. 2006. The relationship of the intensity of lens opacity with physical activity. Medicina (Kaunas) 42:738-43

Pitsavos C, Kavouras SA, Panagiotakos DB, Arapi S, Anastasiou CA, et al. 2008. Physical activity status and acute coronary syndromes survival The GREECS (Greek Study of Acute Coronary Syndromes) study. J Am Coll Cardiol 51:2034-9

Pratt M, Fulton JE. 2009. Staying on task: challenges of global physical activity surveillance. J Phys Act Health 6 Suppl 1:S3-4

Prochaska JJ, Hall SM, Humfleet G, Munoz RF, Reus V, et al. 2008. Physical activity as a strategy for maintaining tobacco abstinence: a randomized trial. Prev Med 47:215-20

Qahoush R, Stotts N, Alawneh MS, Froelicher ES. 2010. Physical activity in Arab women in Southern California. Eur J Cardiovasc Nurs 9:263-71

Quadros TM, Petroski EL, Santos-Silva DA, Pinheiro-Gordia A. 2009. The prevalence of physical inactivity amongst Brazilian university students: its association with sociodemographic variables. Rev Salud Publica (Bogota) 11:724-33

Quinn A, Doody C, O'Shea D. 2008. The effect of a physical activity education programme on physical activity, fitness, quality of life and attitudes to exercise in obese females. J Sci Med Sport 11:469-72

Reichert FF, Barros AJ, Domingues MR, Hallal PC. 2007. The role of perceived personal barriers to engagement in leisure-time physical activity. Am J Public Health 97:515-9

Reis RS, Hallal PC, Parra DC, Ribeiro IC, Brownson RC, et al. 2010. Promoting physical activity through community-wide policies and planning: findings from Curitiba, Brazil. J Phys Act Health 7 Suppl 2:S137-45

Resende Mde A, Resende RB, Tavares Rda S, Santos CR, Barreto-Filho JA. 2010

Comparative study of the pro-atherosclerotic profile of students of medicine and physical education. Arq Bras Cardiol 95:21-9

Rodriguez DA, Aytur S, Forsyth A, Oakes JM, Clifton KJ. 2008. Relation of modifiable neighborhood attributes to walking. Prev Med 47:260-4

Rombaldi AJ, Menezes AM, Azevedo MR, Hallal PC. 2010. Leisure-time physical activity: association with activity levels in other domains. J Phys Act Health 7:460-4

Rome A, Persson U, Ekdahl C, Gard G. 2009. Physical activity on prescription (PAP): costs and consequences of a randomized, controlled trial in primary healthcare. Scand J Prim Health Care 27:216-22

Rosemann T, Kuehlein T, Laux G, Szecsenyi J. 2008. Factors associated with physical activity of patients with osteoarthritis of the lower limb. J Eval Clin Pract 14:288-93

Rutten A, Abu-Omar K. 2004a. Perceptions of environmental opportunities for physical activity in the European Union. Soz Praventivmed 49:310-7

Rutten A, Abu-Omar K. 2004b. Prevalence of physical activity in the European Union. Soz Praventivmed 49:281-9

Saebu M, Sorensen M. 2010. Factors associated with physical activity among young adults with a disability. Scand J Med Sci Sports

Sallis JF, Bowles HR, Bauman A, Ainsworth BE, Bull FC, et al. 2009. Neighborhood environments and physical activity among adults in 11 countries. Am J Prev Med 36:484-90

Salvador EP, Reis RS, Florindo AA. 2010. Practice of walking and its association with perceived environment among elderly Brazilians living in a region of low socioeconomic level. Int J Behav Nutr Phys Act 7:67

Santos R, Silva P, Santos P, Ribeiro JC, Mota J. 2008. Physical activity and perceived environmental attributes in a sample of Portuguese adults: results from the Azorean Physical Activity and Health study. Prev Med 47:83-8

Schmidt MD, Cleland VJ, Thomson RJ, Dwyer T, Venn AJ. 2008. A comparison of subjective and objective measures of physical activity and fitness in identifying associations with cardiometabolic risk factors. Ann Epidemiol 18:378-86

Sherlock E, O'Donnell JS, White B, Blake C. 2010. Physical activity levels and participation in sport in Irish people with haemophilia. Haemophilia 16:e202-9

Shigematsu R, Sallis JF, Conway TL, Saelens BE, Frank LD, et al. 2009. Age differences in the relation of perceived neighborhood environment to walking. Med Sci Sports Exerc 41:314-21

Simoes EJ, Hallal P, Pratt M, Ramos L, Munk M, et al. 2009. Effects of a community-based, professionally supervised intervention on physical activity levels among residents of Recife, Brazil. Am J Public Health 99:68-75

Sirriyeh R, Lawton R, Ward J. 2010. Physical activity and adolescents: an exploratory randomized controlled trial investigating the influence of affective and instrumental text messages. Br J Health Psychol 15:825-40

Sjöström M, Oja P, Hagströmer M. 2006. Health-enhancing physical activity across European Union countries: the Eurobarometer study. Journal of Public Health 14:291-300

Skrzypulec V, Dabrowska J, Drosdzol A. 2010. The influence of physical activity level on climacteric symptoms in menopausal women. Climacteric 13:355-61

Slot TR, Dumas GA. 2010. Musculoskeletal symptoms in tree planters in Ontario, Canada. Work 36:67-75

Slowinska-Lisowska M, Jozkow P, Medras M. 2010. Associations between physical activity and the androgenic/estrogenic status of men. Physiol Res

Sousa L, Rocha MO, Britto RR, Lombardi F, Ribeiro AL. 2009. Chagas disease alters the relationship between heart rate variability and daily physical activity. Int J Cardiol 135:257-9

Spittaels H, De Bourdeaudhuij I, Vandelanotte C. 2007. Evaluation of a website-delivered computer-tailored intervention for increasing physical activity in the general population. Prev Med 44:209-17

Stavropoulos-Kalinoglou A, Metsios GS, Smith JP, Panoulas VF, Douglas KM, et al. 2010. What predicts obesity in patients with rheumatoid arthritis? An investigation of the interactions between lifestyle and inflammation. Int J Obes (Lond) 34:295-301

Stroud N, Minahan C, Sabapathy S. 2009. The perceived benefits and barriers to exercise participation in persons with multiple sclerosis. Disabil Rehabil 31:2216-22

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