{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,29]],"date-time":"2025-08-29T09:45:15Z","timestamp":1756460715575,"version":"3.40.5"},"reference-count":71,"publisher":"Public Library of Science (PLoS)","issue":"1","license":[{"start":{"date-parts":[[2021,1,14]],"date-time":"2021-01-14T00:00:00Z","timestamp":1610582400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>This study aimed to evaluate the validity and precision of the International Physical Activity Questionnaire (IPAQ) for climacteric women using computational intelligence techniques. The instrument was applied to 873 women aged between 40 and 65 years. Considering the proposal to regroup the set of data related to the level of physical activity of climacteric women using the IPAQ, we used 2 algorithms: Kohonen and k-means, and, to evaluate the validity of these clusters, 3 indexes were used: Silhouette, PBM and Dunn. The questionnaire was tested for validity (factor analysis) and precision (Cronbach's alpha). The Random Forests technique was used to assess the importance of the variables that make up the IPAQ. To classify these variables, we used 3 algorithms: Suport Vector Machine, Artificial Neural Network and Decision Tree. The results of the tests to evaluate the clusters suggested that what is recommended for IPAQ, when applied to climacteric women, is to categorize the results into two groups. The factor analysis resulted in three factors, with factor 1 being composed of variables 3 to 6; factor 2 for variables 7 and 8; and factor 3 for variables 1 and 2. Regarding the reliability estimate, the results of the standardized Cronbach's alpha test showed values between 0.63 to 0.85, being considered acceptable for the construction of the construct. In the test of importance of the variables that make up the instrument, the results showed that variables 1 and 8 presented a lesser degree of importance and by the analysis of Accuracy, Recall, Precision and area under the ROC curve, there was no variation when the results were analyzed with all IPAQ variables but variables 1 and 8. Through this analysis, we concluded that the IPAQ, short version, has adequate measurement properties for the investigated population.<\/jats:p>","DOI":"10.1371\/journal.pone.0245240","type":"journal-article","created":{"date-parts":[[2021,1,14]],"date-time":"2021-01-14T19:02:48Z","timestamp":1610650968000},"page":"e0245240","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":7,"title":["Validity and precision of the International Physical Activity Questionnaire for climacteric women using computational intelligence techniques"],"prefix":"10.1371","volume":"16","author":[{"given":"Ronilson","family":"Ferreira Freitas","sequence":"first","affiliation":[]},{"given":"Josiane","family":"Santos Brant Rocha","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6504-7692","authenticated-orcid":true,"given":"Laercio","family":"Ives Santos","sequence":"additional","affiliation":[]},{"given":"Andr\u00e9 Luiz","family":"de Carvalho Braule Pinto","sequence":"additional","affiliation":[]},{"given":"Maria Helena","family":"Rodrigues Moreira","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8826-6852","authenticated-orcid":true,"given":"Fernanda","family":"Piana Santos Lima de Oliveira","sequence":"additional","affiliation":[]},{"given":"Maria Suzana","family":"Marques","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5755-0968","authenticated-orcid":true,"given":"Geraldo Edson","family":"Souza Guerra J\u00fanior","sequence":"additional","affiliation":[]},{"given":"Kelma Dayana","family":"de Oliveira Silva Guerra","sequence":"additional","affiliation":[]},{"given":"Andreia Maria","family":"Ara\u00fajo Drummond","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1231-3886","authenticated-orcid":true,"given":"Jo\u00e3o Victor","family":"Villas Boas Spelta","sequence":"additional","affiliation":[]},{"given":"Carolina","family":"Ananias Meira Trov\u00e3o","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4647-5218","authenticated-orcid":true,"given":"Doroth\u00e9a","family":"Schmidt Fran\u00e7a","sequence":"additional","affiliation":[]},{"given":"Lanuza","family":"Borges Oliveira","sequence":"additional","affiliation":[]},{"given":"Ant\u00f4nio","family":"Prates Caldeira","sequence":"additional","affiliation":[]},{"given":"Marcos Fl\u00e1vio","family":"Silveira Vasconcelos D\u2019Angelo","sequence":"additional","affiliation":[]}],"member":"340","published-online":{"date-parts":[[2021,1,14]]},"reference":[{"key":"pone.0245240.ref001","doi-asserted-by":"crossref","first-page":"15004","DOI":"10.1038\/nrdp.2015.4","article-title":"Menopausa.","volume":"1","author":"S Davis","year":"2015","journal-title":"Nat Rev Dis Primers"},{"key":"pone.0245240.ref002","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1016\/j.maturitas.2018.07.014","article-title":"A qualitative assessment of health behaviors and experiences during menopause: A cross-sectional, observational study","volume":"116","author":"KL Marlatt","year":"2018","journal-title":"Maturitas"},{"issue":"2","key":"pone.0245240.ref003","doi-asserted-by":"crossref","first-page":"e0211617","DOI":"10.1371\/journal.pone.0211617","article-title":"Quality of life in climacteric women assisted by primary health care","volume":"14","author":"GES Guerra J\u00fanior","year":"2019","journal-title":"PLoS ONE"},{"issue":"1","key":"pone.0245240.ref004","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1249\/MSS.0000000000001071","article-title":"Adaptations with Intermittent Exercise Training in Post- and Premenopausal Women","volume":"49","author":"K Seidelen","year":"2017","journal-title":"Med Sci Sports Exerc"},{"issue":"6","key":"pone.0245240.ref005","first-page":"467","article-title":"Influence of physical activity on quality of life in postmenopausal women with osteoporosis","volume":"54","author":"EL Caputo","year":"2014","journal-title":"Rev. Bras. Reumatol"},{"issue":"8","key":"pone.0245240.ref006","doi-asserted-by":"crossref","first-page":"1378","DOI":"10.1002\/oby.22849","article-title":"Does high cardiorespiratory fitness confer some protection against pro\u2010inflammatory responses after infection by SARS\u2010CoV\u20102?","volume":"28","author":"H Zbinden-Foncea","year":"2020","journal-title":"Obesity (Silver Spring)"},{"issue":"3","key":"pone.0245240.ref007","doi-asserted-by":"crossref","first-page":"537","DOI":"10.1016\/j.ogc.2011.05.008","article-title":"Physical Activity and Health During the Menopausal Transition","volume":"38","author":"B Sternfeld","year":"2011","journal-title":"Obstet Gynecol Clin North Am"},{"issue":"11","key":"pone.0245240.ref008","doi-asserted-by":"crossref","first-page":"2065","DOI":"10.2337\/dc16-1728","article-title":"Physical Activity\/Exercise and Diabetes: A Position Statement of the American Diabetes Association","volume":"39","author":"SR Colberg","year":"2016","journal-title":"Diabetes Care"},{"issue":"1","key":"pone.0245240.ref009","doi-asserted-by":"crossref","first-page":"e000143","DOI":"10.1136\/bmjsem-2016-000143","article-title":"Update on the effects of physical activity on insulin sensitivity in humans","volume":"2","author":"SR Bird","year":"2017","journal-title":"BMJ Open Sport Exerc Med"},{"key":"pone.0245240.ref010","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1016\/j.cophys.2019.04.008","article-title":"Current advances in our understanding of exercise as medicine in metabolic disease","volume":"12","author":"L Sylow","year":"2019","journal-title":"Current Opinion in Physiology"},{"key":"pone.0245240.ref011","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.maturitas.2019.08.006","article-title":"Italian Association of Sleep Medicine (AIMS) position statement and guideline on the treatment of menopausal sleep disorders","volume":"129","author":"R Silvestri","year":"2019","journal-title":"Maturitas"},{"key":"pone.0245240.ref012","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1016\/j.sleep.2016.03.017","article-title":"High or increasing levels of physical activity protect women from future insomnia","volume":"32","author":"S Sp\u00f6rndly-Nees","year":"2017","journal-title":"Sleep Medicina"},{"issue":"27","key":"pone.0245240.ref013","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1097\/GME.0000000000001441","article-title":"Association between physical activity, cardiorespiratory fitness, and body composition with menopausal symptoms in early postmenopausal women","volume":"2","author":"F Morardpour","year":"2020","journal-title":"Menopause"},{"issue":"8","key":"pone.0245240.ref014","article-title":"Physical activity and change in quality of life during menopause -an 8-year follow-up study","volume":"10","author":"JM Moilanen","year":"2012","journal-title":"Health Qual Life Outcomes"},{"issue":"3","key":"pone.0245240.ref015","first-page":"317","article-title":"Validation of two questionnaires to assess physical activity in adults","volume":"18","author":"LMT Garcia","year":"2013","journal-title":"Rev. Bras. Ativ. Fis. e Sa\u00fade"},{"issue":"3","key":"pone.0245240.ref016","doi-asserted-by":"crossref","first-page":"494","DOI":"10.1016\/j.jbmt.2018.05.005","article-title":"The impact of physical activity level, degree of dyspnoea and pulmonary function on the performance of healthy young adults during exercise","volume":"23","author":"VP Almeida","year":"2019","journal-title":"Journal of Bodywork and Movement Therapies"},{"issue":"3","key":"pone.0245240.ref017","first-page":"233","article-title":"Questionnaires to assess the habitual physical activity level among Brazilian adolescents: a systematic review","volume":"41","author":"MFC Lima","year":"2019","journal-title":"Rev Bras Ci\u00eanc Esporte"},{"issue":"14","key":"pone.0245240.ref018","article-title":"Impact of physical activity level and dietary fat content on passive overconsumption of energy in non-obese adults","volume":"14","author":"K Beaulieu","year":"2017","journal-title":"International Journal of Behavioral Nutrition and Physical Activity"},{"issue":"1","key":"pone.0245240.ref019","doi-asserted-by":"crossref","first-page":"11","DOI":"10.3329\/bmj.v47i1.42818","article-title":"Physical Activity and Menopausal Symptoms","volume":"47","author":"BEZ Khan","year":"2018","journal-title":"Banglades Med J"},{"issue":"1160","key":"pone.0245240.ref020","article-title":"Level of physical activity among urban adults and the socio-demographic correlates: a population-based cross-sectional study using the global physical activity questionnaire","volume":"19","author":"MM Mengesha","year":"2019","journal-title":"BMC Public Health."},{"issue":"8","key":"pone.0245240.ref021","doi-asserted-by":"crossref","first-page":"466","DOI":"10.3390\/medicina55080466","article-title":"High Physical Activity Level May Reduce Menopausal Symptoms","volume":"55","author":"M Dabrowska-Galas","year":"2019","journal-title":"Medicina"},{"issue":"5","key":"pone.0245240.ref022","doi-asserted-by":"crossref","first-page":"385","DOI":"10.1080\/10408399609527732","article-title":"Physical activity assessment: a review of methods","volume":"36","author":"EL Melanson J\u00fanior","year":"2009","journal-title":"Crit Rev Food Sci Nutr"},{"issue":"2","key":"pone.0245240.ref023","first-page":"151","article-title":"Reproducibility and validity of the International Physical Activity Questionnaire in adolescents","volume":"11","author":"DP Guedes","year":"2005","journal-title":"Rev Bras Med Esporte"},{"issue":"8","key":"pone.0245240.ref024","doi-asserted-by":"crossref","first-page":"1381","DOI":"10.1249\/01.MSS.0000078924.61453.FB","article-title":"International Physical Activity Questionnaire: 12-country reliability and validity","volume":"35","author":"CL Craig","year":"2003","journal-title":"Med Sci Sports Exerc"},{"issue":"2","key":"pone.0245240.ref025","first-page":"144","article-title":"Comparison of physical activity level measured by IPAQ questionnaire and accelerometer in older adults","volume":"21","author":"ED Torquato","year":"2016","journal-title":"Rev Bras Ativ F\u00eds Sa\u00fade"},{"issue":"2","key":"pone.0245240.ref026","first-page":"5","article-title":"Question\u00e1rio Internacional de Atividade F\u00edsica (IPAQ): estudo de validade e reprodutibilidade no Brasil","volume":"6","author":"S Matsudo","year":"2001","journal-title":"Revista Atividade F\u00edsica & Sa\u00fade"},{"issue":"3","key":"pone.0245240.ref027","first-page":"45","article-title":"Validation of the International Physical Activity Questionaire (IPAQ-version 6): pilot study in Brazilian young adults","volume":"9","author":"R Pardini","year":"2001","journal-title":"Rev. Bras. Ci\u00ean. Mov"},{"issue":"14","key":"pone.0245240.ref028","first-page":"281","article-title":"Some methods for classification and analysis of multivariate observations","volume":"1","author":"J MacQueen","year":"1967","journal-title":"Proceedings of the fifth Berkeley symposium on mathematical statistics and probability"},{"issue":"9","key":"pone.0245240.ref029","doi-asserted-by":"crossref","first-page":"1464","DOI":"10.1109\/5.58325","article-title":"The self-organizing map","volume":"78","author":"T. Kohonen","year":"1990","journal-title":"Proceedings of the IEEE"},{"key":"pone.0245240.ref030","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1016\/0377-0427(87)90125-7","article-title":"Silhouettes: a graphical aid to the interpretation and validation of cluster analysis","volume":"20","author":"PJ Rousseeuw","year":"1987","journal-title":"Journal of computational and applied mathematics"},{"issue":"3","key":"pone.0245240.ref031","doi-asserted-by":"crossref","first-page":"487","DOI":"10.1016\/j.patcog.2003.06.005","article-title":"Validity index for crisp and fuzzy clusters","volume":"37","author":"MK Pakhira","year":"2004","journal-title":"Pattern recognition"},{"issue":"2","key":"pone.0245240.ref032","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1145\/565117.565124","article-title":"Cluster validity methods: part I","volume":"31","author":"M Halkidi","year":"2002","journal-title":"ACM Sigmod Record"},{"key":"pone.0245240.ref033","volume-title":"An\u00e1lise multivariada de dados","author":"JF Hair","year":"2009","edition":"6"},{"issue":"1","key":"pone.0245240.ref034","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1590\/S0104-62762010000100007","article-title":"Vis\u00e3o al\u00e9m do alcance: uma introdu\u00e7\u00e3o \u00e0 an\u00e1lise fatorial","volume":"16","author":"DB Figueiredo-Filho","year":"2010","journal-title":"Opin P\u00fablica"},{"issue":"1","key":"pone.0245240.ref035","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1023\/A:1010933404324","article-title":"Random forests","volume":"45","author":"L Breiman","year":"2001","journal-title":"Machine learning"},{"issue":"3","key":"pone.0245240.ref036","doi-asserted-by":"crossref","first-page":"273","DOI":"10.1007\/BF00994018","article-title":"Support-vector networks","volume":"20","author":"C Cortes","year":"1995","journal-title":"Machine learning"},{"key":"pone.0245240.ref037","volume-title":"Pattern classification","author":"RO Duda","year":"2012","edition":"2"},{"volume-title":"Classification and regression trees","year":"1984","author":"L Breiman","key":"pone.0245240.ref038"},{"key":"pone.0245240.ref039","volume-title":"Carvalho ACPL. Intelig\u00eancia artificial: uma abordagem de aprendizado de m\u00e1quina","author":"K Faceli","year":"2011","edition":"1"},{"issue":"8","key":"pone.0245240.ref040","doi-asserted-by":"crossref","first-page":"e0201723","DOI":"10.1371\/journal.pone.0201723","article-title":"Transition to universal primary health care coverage in Brazil: Analysis of uptake and expansion patterns of Brazil's Family Health Strategy (1998\u20132012)","volume":"13","author":"MV Andrade","year":"2018","journal-title":"PLoS ONE"},{"key":"pone.0245240.ref041","unstructured":"Sociedade Norte-Americana da Menopausa (NAMS). Guia da Menopausa. Dispon\u00edvel em: www.menopause.org. Traduzido pela SOBRAC\u2014Associa\u00e7\u00e3o Brasileira de Climat\u00e9rio. Guia da Menopausa. Ajudando uma mulher climatizada a tomar informa\u00e7\u00f5es sobre sua sa\u00fade. 7 ed. S\u00e3o Paulo: 2013. ISBN 978-0-9701251-4-9. Available at::http:\/\/sobrac.org.br\/media\/files\/publicacoes\/00001261_a12361_leigos_rev2mcowfinal.pdf. Access in: 05\/06\/2020."},{"issue":"Supl. 1","key":"pone.0245240.ref042","first-page":"38","article-title":"Complex Sampling Design in Population Surveys: Planning and effects on statistical data analysis","volume":"11","author":"CL Szwarcwald","year":"2008","journal-title":"Rev. bras. epidemiol"},{"issue":"2","key":"pone.0245240.ref043","first-page":"1","article-title":"Physical activity in climacteric women: comparison between self-reporting and pedometer","volume":"48","author":"V Colpani","year":"2014","journal-title":"Rev Sa\u00fade P\u00fablica"},{"issue":"4","key":"pone.0245240.ref044","first-page":"623","article-title":"Level of physical inactivity in different domains and associated factors in adults: Health Survey in Campinas city (ISACamp 2008\/2009), S\u00e3o Paulo state, Brazil","volume":"23","author":"IL Souza","year":"2014","journal-title":"Epidemiol. Serv. Sa\u00fade"},{"issue":"5","key":"pone.0245240.ref045","first-page":"1521","article-title":"Quality of life and levels of physical activity of residentes living in therapeutic residential care facilities in Southern Brazil","volume":"23","author":"SK Klein","year":"2018","journal-title":"Ci\u00eancia & Sa\u00fade Coletiva"},{"issue":"11","key":"pone.0245240.ref046","first-page":"1","article-title":"Physical Activity Is Associated With Better Executive Function in University Students","volume":"14","author":"D Salas-Gomez","year":"2020","journal-title":"Front Hum Neurosci"},{"issue":"1","key":"pone.0245240.ref047","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.cosrev.2007.05.001","article-title":"Graph clustering","volume":"1","author":"SE Schaeffer","year":"2007","journal-title":"Computer science review"},{"issue":"1","key":"pone.0245240.ref048","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1590\/S0101-74382007000100005","article-title":"Otimiza\u00e7\u00e3o na forma\u00e7\u00e3o de agrupamentos em problemas de composi\u00e7\u00e3o de especialistas","volume":"27","author":"RA Scarpel","year":"2007","journal-title":"Pesquisa Operacional"},{"issue":"1","key":"pone.0245240.ref049","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1007\/s11336-008-9101-0","article-title":"On the use, the misuse, and the very limited usefulness of Cronbach\u2019s alpha","volume":"74","author":"K. Sijtsma","year":"2009","journal-title":"Psychometrika"},{"key":"pone.0245240.ref050","volume-title":"Psychometrics: an introduction","author":"RM Furr","year":"2017","edition":"3"},{"issue":"Esp","key":"pone.0245240.ref051","first-page":"992","article-title":"Psychometrics","volume":"43","author":"L Pasquali","year":"2009","journal-title":"Rev Esc Enferm USP"},{"volume-title":"Psicometria: teorias e aplica\u00e7\u00f5es","year":"1997","author":"L Pasquali","key":"pone.0245240.ref052"},{"issue":"1","key":"pone.0245240.ref053","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1207\/S15327752JPA8001_18","article-title":"Starting at the beginning: an introduction to coefficient alpha and internal consistency","volume":"80","author":"DL Streiner","year":"2003","journal-title":"J Pers Assess"},{"issue":"4","key":"pone.0245240.ref054","doi-asserted-by":"crossref","first-page":"049901","DOI":"10.1117\/1.2819119","article-title":"Pattern recognition and machine learning","volume":"16","author":"NM Nasrabadi","year":"2007","journal-title":"Journal of electronic imaging"},{"issue":"12","key":"pone.0245240.ref055","doi-asserted-by":"crossref","first-page":"1432","DOI":"10.1097\/GME.0000000000001137","article-title":"Physical performance in relation to menopause status and physical activity","volume":"25","author":"D Bondarev","year":"2018","journal-title":"Menopause"},{"issue":"1","key":"pone.0245240.ref056","first-page":"23","article-title":"Reprodutibilidade (teste\/reteste) do Question\u00e1rio Internacional de Atividade F\u00edsica (QIAF-vers\u00e3o 6): um estudo piloto com adultos no Brasil","volume":"8","author":"M Barros","year":"2000","journal-title":"Rev Bras Ci\u00ean e Mov"},{"issue":"1","key":"pone.0245240.ref057","first-page":"25","article-title":"Aplica\u00e7\u00e3o do Question\u00e1rio Internacional de Atividade F\u00edsica para avalia\u00e7\u00e3o do n\u00edvel de atividades f\u00edsicas de mulheres idosas: validade concorrente e reprodutibilidade teste\/reteste","volume":"12","author":"TRB Benedetti","year":"2004","journal-title":"Rev Bras Ci\u00ean e Mov"},{"issue":"1","key":"pone.0245240.ref058","first-page":"11","article-title":"Reproducibility and validity of the International Physical Activity Questionnaire (IPAQ) in elderly men","volume":"13","author":"TRB Benedetti","year":"2007","journal-title":"Rev Bras Med Esporte"},{"issue":"1","key":"pone.0245240.ref059","first-page":"39","article-title":"Evaluation of the physical activity level of undergraduation students of health\/biology fields","volume":"13","author":"GSF Silva","year":"2007","journal-title":"Rev Bras Med Esporte"},{"issue":"7","key":"pone.0245240.ref060","first-page":"1595","article-title":"Physical activity and associated factors among adults in Joa\u00e7aba, Santa Catarina, Brazil","volume":"23","author":"E Baretta","year":"2007","journal-title":"Cad. Sa\u00fade P\u00fablica"},{"issue":"4","key":"pone.0245240.ref061","first-page":"819","article-title":"Level of routine physical activity and common mental disorders among elderly living in rural areas","volume":"17","author":"LLT Pinto","year":"2014","journal-title":"Rev. Bras. Geriatr. Gerontol"},{"key":"pone.0245240.ref062","first-page":"e3037","article-title":"Factors associated with the practice of physical activity in teachers of basic education","volume":"30","author":"RRV Silva","year":"2019","journal-title":"J. Phys. Educ"},{"key":"pone.0245240.ref063","doi-asserted-by":"crossref","first-page":"e003238","DOI":"10.1590\/1980-5918.032.ao38","article-title":"Physical activity level and associated factors: an epidemiological study with elderly","volume":"32","author":"DV Oliveira","year":"2019","journal-title":"Fisioter Mov"},{"key":"pone.0245240.ref064","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1590\/S0034-8910.2015049005975","article-title":"Validity and reliability of the Questionnaire for Compliance with Standard Precaution","volume":"49","author":"MD Valim","year":"2015","journal-title":"Rev Sa\u00fade P\u00fablica"},{"issue":"sup2","key":"pone.0245240.ref065","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1080\/02701367.2000.11082780","article-title":"Assessment of Physical Activity by Self-Report: Status, Limitations, and Future Directions","volume":"71","author":"JF Sallis","year":"2000","journal-title":"Research Quarterly for Exercise and Sport"},{"issue":"1","key":"pone.0245240.ref066","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1037\/0021-9010.78.1.98","article-title":"What is coefficient alpha? An examination of theory and applications","volume":"78","author":"JM Cortina","year":"1993","journal-title":"Journal of Applied Psychology"},{"volume-title":"ACSM\u2019s Guidelines for exercise testing and prescription","year":"2009","author":"American College of Sports Medicine","key":"pone.0245240.ref067"},{"issue":"3","key":"pone.0245240.ref068","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1590\/S1517-86921998000300005","article-title":"A quantidade e o tipo recomendados de exerc\u00edcios para o desenvolvimento e a manuten\u00e7\u00e3o da aptid\u00e3o cardiorrespirat\u00f3ria e muscular em adultos saud\u00e1veis","volume":"4","author":"American College of Sports Medicine","year":"1998","journal-title":"Rev Bras Med Esporte"},{"issue":"9","key":"pone.0245240.ref069","doi-asserted-by":"crossref","first-page":"498","DOI":"10.1097\/00005768-200009001-00009","article-title":"Compendium of physical activities: um update of activity codes and MET intensities","volume":"32","author":"BE Ainsworth","year":"2000","journal-title":"Med Sci Sports Exerc"},{"issue":"6","key":"pone.0245240.ref070","doi-asserted-by":"crossref","first-page":"1549","DOI":"10.3390\/nu12061549","article-title":"Metabolic Impacts of Confinement during the COVID-19 Pandemic Due to Modified Diet and Physical Activity Habits","volume":"12","author":"M Martinez-Ferran","year":"2020","journal-title":"Nutrients"},{"issue":"2","key":"pone.0245240.ref071","doi-asserted-by":"crossref","first-page":"s259","DOI":"10.1123\/jpah.7.s2.s259","article-title":"Lessons learned afters years os IPAQ use in Brazil and Colombia","volume":"7","author":"PC Hallal","year":"2010","journal-title":"J Phys Act Health"}],"container-title":["PLOS ONE"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0245240","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,1,14]],"date-time":"2021-01-14T19:04:03Z","timestamp":1610651043000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0245240"}},"subtitle":[],"editor":[{"given":"Seyedali","family":"Mirjalili","sequence":"first","affiliation":[]}],"short-title":[],"issued":{"date-parts":[[2021,1,14]]},"references-count":71,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2021,1,14]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pone.0245240","relation":{},"ISSN":["1932-6203"],"issn-type":[{"type":"electronic","value":"1932-6203"}],"subject":[],"published":{"date-parts":[[2021,1,14]]}}}