{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T16:46:52Z","timestamp":1769100412117,"version":"3.49.0"},"reference-count":33,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,19]],"date-time":"2023-01-19T00:00:00Z","timestamp":1674086400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Estonian Ministry of Defense","award":["13-7.2-4\/381"],"award-info":[{"award-number":["13-7.2-4\/381"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>The Estonian Defense Forces are the basis of military service, mandatory for all male citizens of the Republic of Estonia who are at least 17 years old. The physical load in military service, especially in the first stage, is significantly greater than for men in everyday life. Therefore, it is important to know if health promotion in civilian life adequately prepares young people for military service and to what extent pre-military health behaviors affect physical performance during service. The purpose of this work was to examine conscripts\u2019 physical fitness at different stages of military service and its relationships with previous lifestyle. Soldiers\u2019 physical fitness was estimated three times during military service using three tests: sit-ups, push-ups and 2-mile run. Lifestyle and socio-economic background data was collected by a web-based questionnaire (n = 235). Linear regression analysis was performed using Army Physical Fitness Test (APFT) scores as dependent variables and questionnaire data as independent variables. The socio-economic background variables had no effect on physical fitness scores throughout the training period (p &gt; 0.05). Young men that were physically more active daily, did sports, had healthier diet and did not smoke before entering military service showed better physical fitness test results throughout the period of service (p &lt; 0.05). The effect of participation in sports was evident, as the conscripts with previous sports experiences demonstrated higher fitness tests scores (p &lt; 0.01). These findings show that health promotion initiatives or programs for promoting physical activity and healthy diet, and preventing obesity and tobacco use, can also have a positive effect on the physical performance of young men during military service.<\/jats:p>","DOI":"10.3390\/ijerph20031860","type":"journal-article","created":{"date-parts":[[2023,1,19]],"date-time":"2023-01-19T05:06:14Z","timestamp":1674104774000},"page":"1860","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["The Influence of Previous Lifestyle on Occupational Physical Fitness in the Context of Military Service"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3532-5190","authenticated-orcid":false,"given":"Leila","family":"Oja","sequence":"first","affiliation":[{"name":"National Institute for Health Development, 11619 Tallinn, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0420-5850","authenticated-orcid":false,"given":"Jaanika","family":"Piks\u00f6\u00f6t","sequence":"additional","affiliation":[{"name":"National Institute for Health Development, 11619 Tallinn, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,19]]},"reference":[{"key":"ref_1","unstructured":"Ronge, J., and Abrate, G. (2019). Conscription in the European Union Armed Forces: National Trends, Benefits and EU Modernised Service, FINABEL European Union Interoperability Center."},{"key":"ref_2","unstructured":"Estonian Parliament (2022, November 22). Military Service Act. Available online: https:\/\/www.riigiteataja.ee\/en\/eli\/519092014003\/consolide."},{"key":"ref_3","unstructured":"Headquarters, Department of the Army (2012). Fm 7-22 Army Physical Readiness Training."},{"key":"ref_4","first-page":"3","article-title":"Assessment of physical fitness in military and security forces: A systematic review","volume":"32","author":"Colmenero","year":"2014","journal-title":"Eur. J. Hum. Mov."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"571","DOI":"10.2165\/00007256-200131080-00001","article-title":"Physical fitness and changes in mortality","volume":"31","author":"Erikssen","year":"2001","journal-title":"Sports Med."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1097\/00042752-200305000-00006","article-title":"Incidence of injury and physical performance adaptations during military training","volume":"13","author":"Rosendal","year":"2003","journal-title":"Clin. J. Sport Med."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"245","DOI":"10.7205\/MILMED-D-01-6908","article-title":"Army Physical Fitness Test scores predict coronary heart disease risk in Army National Guard soldiers","volume":"174","author":"Talbot","year":"2009","journal-title":"Mil. Med."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Webber, B.J., Bornstein, D.B., Deuster, P.A., O\u2019Connor, F.G., Park, S., Rose, K.M., and Whitfield, G.P. (Am. J. Prev. Med., 2022). BMI and Physical activity, military-aged US population 2015\u20132020, Am. J. Prev. Med., in press.","DOI":"10.1016\/j.amepre.2022.08.008"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Oja, L., Slap\u0161inskait\u0117, A., Piks\u00f6\u00f6t, J., and \u0160migelskas, K. (2020). Baltic Adolescents\u2019 health behaviour: An international comparison. Int. J. Environ. Res. Public Health, 17.","DOI":"10.3390\/ijerph17228609"},{"key":"ref_10","unstructured":"Inchley, J., Currie, D., Young, T., Samdal, O., Torsheim, T., Augustson, L., Mathison, F., Aleman-Diaz, A., Molcho, M., and Weber, M. (2016). Growing up Unequal: Gender and Socioeconomic Differences in Young People\u2019s Health and Well-Being, World Health Organization Regional Office for Europe."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/1471-2458-11-590","article-title":"Low physical fitness is a strong predictor of health problems among young men: A follow-up study of 1411 male conscripts","volume":"11","author":"Taanila","year":"2011","journal-title":"BMC Public Health"},{"key":"ref_12","unstructured":"Estonian Ministry of Defense (2022, November 17). Report on the Fulfillment of the Defense Obligation and Organization of Military Service in 2016. Available online: https:\/\/kra.ee\/wp-content\/uploads\/sites\/4\/aruanne_kaitsevaekohustuse_taitmisest_riigis_2016.pdf."},{"key":"ref_13","unstructured":"Estonian Ministry of Defense (2022, November 17). Report on the Fulfillment of the Defense Obligation and Organization of Military Service in 2020. Available online: https:\/\/kra.ee\/wp-content\/uploads\/sites\/4\/aruanne_kaitsevaekohustuse_taitmisest_riigis_2020.pdf."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"123","DOI":"10.55460\/AS9H-FO5O","article-title":"The importance of physical fitness for injury prevention: Part 1","volume":"15","author":"Knapik","year":"2015","journal-title":"J. Spec. Oper. Med."},{"key":"ref_15","first-page":"1","article-title":"Risk factors for musculoskeletal injuries in the military: A qualitative systematic review of the literature from the past two decades and a new prioritizing injury model","volume":"8","author":"Sammito","year":"2021","journal-title":"Mil. Med. Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"e000100","DOI":"10.1136\/bmjsem-2015-000100","article-title":"Low fitness, low body mass and prior injury predict injury risk during military recruit training: A prospective cohort study in the British Army","volume":"2","author":"Robinson","year":"2016","journal-title":"BMJ Open Sport Exerc. Med."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"3486","DOI":"10.1519\/JSC.0b013e318217675f","article-title":"Factors of trainability and predictability associated with military physical fitness test success","volume":"25","author":"Cuddy","year":"2011","journal-title":"J. Strength Cond. Res."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1810","DOI":"10.7205\/MILMED-D-16-00113","article-title":"Anabolic adaptations occur in conscripts during basic military training despite high prevalence of vitamin D deficiency and decrease in iron status","volume":"182","author":"Timpmann","year":"2017","journal-title":"Mil. Med."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"841","DOI":"10.1016\/j.jsams.2020.02.006","article-title":"Effects of baseline fitness and BMI levels on changes in physical fitness during military service","volume":"23","author":"Pihlainen","year":"2020","journal-title":"J. Sci. Med. Sport"},{"key":"ref_20","unstructured":"Reile, R., and Veideman, T. (2023, January 12). Eesti T\u00e4iskasvanud Rahvastiku Tervisek\u00e4itumise Uuring 2020. Health Behaviour among Estonian Adult Population 2020. Available online: https:\/\/www.tai.ee\/sites\/default\/files\/2021-04\/TKU2020_kogumik.pdf."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1519\/JSC.0000000000001035","article-title":"Optimal physical training during military basic training period","volume":"29","author":"Santtila","year":"2015","journal-title":"J. Strength Cond. Res."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"922","DOI":"10.7205\/MILMED-D-10-00308","article-title":"Self-reported physical activity and preaccession fitness testing in US Army applicants","volume":"176","author":"Gubata","year":"2011","journal-title":"Mil. Med."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"45","DOI":"10.7205\/MILMED.171.1.45","article-title":"Increasing the physical fitness of low-fit recruits before basic combat training: An evaluation of fitness, injuries, and training outcomes","volume":"171","author":"Knapik","year":"2006","journal-title":"Mil. Med."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1519\/JSC.0000000000001025","article-title":"Perspectives on aerobic and strength influences on military physical readiness: Report of an international military physiology roundtable","volume":"29","author":"Friedl","year":"2015","journal-title":"J. Strength Cond. Res."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"936","DOI":"10.7205\/MILMED.172.9.936","article-title":"Factors associated with discharge during marine corps basic training","volume":"172","author":"Reis","year":"2007","journal-title":"Mil. Med."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1104","DOI":"10.7205\/MILMED-D-10-00451","article-title":"Risk factors for medical discharge from United States Army basic combat training","volume":"176","author":"Swedler","year":"2011","journal-title":"Mil. Med."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"9","DOI":"10.7205\/MILMED-D-03-7407","article-title":"Individual risk factors associated with premature discharge from military service","volume":"174","author":"Larsson","year":"2009","journal-title":"Mil. Med."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"2054270417692729","DOI":"10.1177\/2054270417692729","article-title":"Factors associated with poor self-reported health within the UK military and comparisons with the general population: A cohort study","volume":"8","author":"Jenkins","year":"2017","journal-title":"JRSM open"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1093\/milmed\/164.4.269","article-title":"Prevalence and predictors of discharge in United States Air Force basic military training","volume":"164","author":"Talcott","year":"1999","journal-title":"Mil. Med."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1136\/bmjmilitary-2020-001451","article-title":"Regular strength training and baseline fitness in overweight infantry members of Slovenian armed forces","volume":"168","author":"Pori","year":"2022","journal-title":"BMJ Mil. Health"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1519\/JSC.0b013e31825ced6c","article-title":"Body composition and military performance\u2014Many things to many people","volume":"26","author":"Friedl","year":"2012","journal-title":"J. Strength Cond. Res."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"2030","DOI":"10.1519\/JSC.0000000000001928","article-title":"Secular trends in the physical fitness of United States Army recruits on entry to service, 1975\u20132013","volume":"31","author":"Knapik","year":"2017","journal-title":"J. Strength Cond. Res."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"115","DOI":"10.7205\/MILMED.172.2.115","article-title":"The validity of self-reported physical fitness test scores","volume":"172","author":"Jones","year":"2007","journal-title":"Mil. Med."}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/20\/3\/1860\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T18:10:25Z","timestamp":1760119825000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/20\/3\/1860"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,1,19]]},"references-count":33,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2023,2]]}},"alternative-id":["ijerph20031860"],"URL":"https:\/\/doi.org\/10.3390\/ijerph20031860","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,1,19]]}}}