{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T15:07:23Z","timestamp":1789052843592,"version":"build-2803163510"},"reference-count":37,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T00:00:00Z","timestamp":1788998400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Funct. Morphol. Kinesiol.","JFMK"],"abstract":"<jats:p>Background: The Body Shape Index (ABSI) and somatotype components represent different approaches to assessing body morphology. This study aimed to examine the associations between physical activity, sedentary behaviour, sleep duration, ABSI, and somatotype components in young adults. Methods: A cross-sectional study was conducted among 371 university students from Poland and Slovenia (202 men and 169 women; mean age: 21.46 \u00b1 1.07 years). ABSI and somatotype components were determined based on anthropometric measurements. Data on physical activity, sedentary behaviour, and sleep duration were obtained using a seven-day activity record. Associations were assessed using Spearman\u2019s rank correlation coefficients and multiple linear regression models adjusted for sex, age, and country of origin. Results: Weak negative correlations were observed between walking time and ABSI (rs = \u22120.135; p &lt; 0.01) and between sleep duration and mesomorphy (rs = \u22120.111; p &lt; 0.05). Additional weak associations were identified in analyses conducted separately for women and men. After adjustment for potential confounders, walking time was positively associated with endomorphy (\u03b2 = 0.158; p = 0.009) and mesomorphy (\u03b2 = 0.117; p = 0.041), and negatively associated with ectomorphy (\u03b2 = \u22120.192; p = 0.002). All significant associations were characterized by small effect sizes. No significant associations were found for ABSI in the primary adjusted model for the total sample. Conclusions: Despite the small magnitude of the observed associations, different patterns of associations were observed for ABSI and the somatotype profile, reflected by the combined pattern of its endomorphic, mesomorphic, and ectomorphic components. However, the identified associations were few in number and weak in strength; therefore, further research is needed to better explain their significance in young adult populations.<\/jats:p>","DOI":"10.3390\/jfmk11030367","type":"journal-article","created":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T14:11:22Z","timestamp":1789049482000},"page":"367","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Associations of Physical Activity, Sedentary Behaviour, and Sleep with Somatotype Components and a Body Shape Index in Young Adults"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9781-8121","authenticated-orcid":false,"given":"Agnieszka","family":"Wasiluk","sequence":"first","affiliation":[{"name":"Department of Health Promotion, Faculty of Physical Education and Health in Biala Podlaska, Jozef Pilsudski University of Physical Education in Warsaw, 00-968 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Wilczewski","sequence":"additional","affiliation":[{"name":"Department of Health Promotion, Faculty of Physical Education and Health in Biala Podlaska, Jozef Pilsudski University of Physical Education in Warsaw, 00-968 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katja","family":"Zde\u0161ar Kotnik","sequence":"additional","affiliation":[{"name":"Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tatjana","family":"Robi\u010d Pikel","sequence":"additional","affiliation":[{"name":"Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"S57","DOI":"10.1139\/apnm-2020-0467","article-title":"Canadian 24-hour movement guidelines for adults aged 18\u201364 years and adults aged 65 years or older: An integration of physical activity, sedentary behaviour, and sleep","volume":"45","author":"Ross","year":"2020","journal-title":"Appl. Physiol. Nutr. Metab."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"S197","DOI":"10.1139\/apnm-2020-0272","article-title":"Sedentary behaviour and health in adults: An overview of systematic reviews","volume":"45","author":"Saunders","year":"2020","journal-title":"Appl. Physiol. Nutr. Metab."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"e13772","DOI":"10.1002\/jcsm.13772","article-title":"Associations between exercise training, physical activity, sedentary behaviour and mortality: An umbrella review of meta-analyses","volume":"16","author":"Rahmati","year":"2025","journal-title":"J. Cachexia Sarcopenia Muscle"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"S218","DOI":"10.1139\/apnm-2020-0034","article-title":"Sleep duration and health in adults: An overview of systematic reviews","volume":"45","author":"Chaput","year":"2020","journal-title":"Appl. Physiol. Nutr. Metab."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Guti\u00e9rrez-Espinoza, H., Cassola-Cajiao, M., Garz\u00f3n-Ulloa, E., Celi-Lalama, D., Araya-Quintanilla, F., Valenzuela-Fuenzalida, J., and L\u00f3pez-Gil, J.F. (2025). Changes in the lifestyle behavior and anthropometrics of university students after the first year: A one-year prospective observational study. Front. Sports Act. Living, 7.","DOI":"10.3389\/fspor.2025.1499828"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"39614","DOI":"10.1038\/s41598-025-23324-0","article-title":"Sleep quality and body composition in active and inactive young adults","volume":"15","author":"Maruszczak","year":"2025","journal-title":"Sci. Rep."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1002\/ncp.70065","article-title":"Practical tools for evaluating body fat distribution: Applications in clinical and home-based weight management","volume":"41","author":"DePrenger","year":"2026","journal-title":"Nutr. Clin. Pract."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1016\/j.dsx.2016.08.027","article-title":"New anthropometric indices or old ones: Which is the better predictor of body fat?","volume":"11","author":"Ehrampoush","year":"2017","journal-title":"Diabetes Metab. Syndr. Clin. Res. Rev."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Krakauer, N.Y., and Krakauer, J.C. (2012). A new body shape index predicts mortality hazard independently of body mass index. PLoS ONE, 7.","DOI":"10.1371\/journal.pone.0039504"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Wasiluk, A., Saczuk, J., and Asienkiewicz, R. (2025). Anthropometric obesity phenotypes in young physically active men: The role of body composition and fat distribution. Life, 15.","DOI":"10.3390\/life15121808"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"8370304","DOI":"10.1155\/2018\/8370304","article-title":"Anthropometric indicators of adiposity related to body weight and body shape as cardiometabolic risk predictors in British young adults: Superiority of waist-to-height ratio","volume":"2018","author":"Amirabdollahian","year":"2018","journal-title":"J. Obes."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1089\/met.2017.0166","article-title":"Untangling waist circumference and hip circumference from body mass index with a body shape index, hip index, and anthropometric risk indicator","volume":"16","author":"Krakauer","year":"2018","journal-title":"Metab. Syndr. Relat. Disord."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Calder\u00f3n-Garc\u00eda, J.F., Roncero-Mart\u00edn, R., Rico-Mart\u00edn, S., De Nicol\u00e1s-Jim\u00e9nez, J.M., L\u00f3pez-Espuela, F., Santano-Mogena, E., Alfageme-Garc\u00eda, P., and S\u00e1nchez Mu\u00f1oz-Torrero, J.F. (2021). Effectiveness of body roundness index (BRI) and a body shape index (ABSI) in predicting hypertension: A systematic review and meta-analysis of observational studies. Int. J. Environ. Res. Public Health, 18.","DOI":"10.3390\/ijerph182111607"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"3272","DOI":"10.1210\/clinem\/dgae282","article-title":"A body shape index as a simple anthropometric marker of abdominal obesity and risk of cardiovascular events","volume":"109","author":"Kajikawa","year":"2024","journal-title":"J. Clin. Endocrinol. Metab."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1186\/s12933-025-02604-z","article-title":"The synergistic effect of the triglyceride-glucose index and a body shape index on cardiovascular mortality: The construction of a novel cardiovascular risk marker","volume":"24","author":"He","year":"2025","journal-title":"Cardiovasc. Diabetol."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"7923338","DOI":"10.1155\/jobe\/7923338","article-title":"Body roundness index and body shape index as predictors for all-cause mortality beyond body mass index: Findings from a national cohort study","volume":"2026","author":"Kimura","year":"2026","journal-title":"J. Obes."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"e10","DOI":"10.1017\/S1368980025101729","article-title":"Behavioral and dietary determinants of central adiposity assessed by ABSI in a Mediterranean clinical sample","volume":"29","author":"Lombardo","year":"2025","journal-title":"Public Health Nutr."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Guerrero-Agenjo, C.M., Rodr\u00edguez-Ca\u00f1amero, S., L\u00f3pez-Gonz\u00e1lez, \u00c1., Rivera-Pic\u00f3n, C., D\u00edaz-Gonz\u00e1lez, S., Durantez-Fernandez, C., Laredo-Aguilera, J.A., Carmona-Torres, J.M., L\u00f3pez-Torres Hidalgo, J., and Rabanales-Sotos, J. (2025). Lifestyle in nursing students: Physical activity level, diet quality, body composition, and cardiovascular risk (ABSI). Healthcare, 13.","DOI":"10.3390\/healthcare13202647"},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Li, Y., Zhou, H., Xu, D., Wang, H., Zhao, Y., and Jiang, H. (2025). Independent and joint associations of physical activity and a body shape index with sleep disorders in older adults with cardiometabolic multimorbidity: A cross-sectional study. BMC Geriatr., 25.","DOI":"10.1186\/s12877-025-06170-7"},{"key":"ref_20","unstructured":"Carter, J.E.L., and Heath, B.H. (1990). Somatotyping: Development and Applications, Cambridge University Press."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"659","DOI":"10.2147\/DMSO.S287954","article-title":"Obesity and Heath-Carter somatotyping of 3438 adults in the Xinjiang Uygur Autonomous Region of China by multivariate analysis","volume":"14","author":"Liu","year":"2021","journal-title":"Diabetes Metab. Syndr. Obes."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1002\/(SICI)1520-6300(1997)9:1<11::AID-AJHB3>3.0.CO;2-T","article-title":"Somatotype and cardiovascular risk factors in healthy adults","volume":"9","author":"Malina","year":"1997","journal-title":"Am. J. Hum. Biol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1186\/s40101-025-00420-8","article-title":"Somatotype and body composition of healthy adult men and women and their contribution to civilization diseases risk","volume":"45","author":"Lipowicz","year":"2026","journal-title":"J. Physiol. Anthropol."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Lipowicz, A., Pol, A., \u015awierczy\u0144ska, K., Knapik, A., Nowak, Z., My\u015bliwiec, A., and Nierwi\u0144ska, K. (2026). Cardiorespiratory fitness of healthy Polish men and women with various somatotypes. BMC Cardiovasc. Disord., 26.","DOI":"10.1186\/s12872-025-05436-7"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"316","DOI":"10.1080\/03014460.2016.1243727","article-title":"Multilevel modelling of somatotype components: The Portuguese sibling study on growth, fitness, lifestyle and health","volume":"44","author":"Pereira","year":"2017","journal-title":"Ann. Hum. Biol."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Esteve-Ib\u00e1\u00f1ez, H., Drehmer, E., da Silva, V.S., Souza, I., Silva, D.A.S., and Vieira, F. (2025). Relationship of body composition and somatotype with physical activity level and nutrition knowledge in elite and non-elite orienteering athletes. Nutrients, 17.","DOI":"10.3390\/nu17040714"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"651","DOI":"10.1017\/thg.2019.46","article-title":"Familial resemblance in body shape and composition, metabolic syndrome, physical activity and physical fitness: A summary of research in Portuguese families and siblings","volume":"22","author":"Pereira","year":"2019","journal-title":"Twin Res. Hum. Genet."},{"key":"ref_28","unstructured":"Lohman, T.G., Roche, A.F., and Martorell, R. (1988). Anthropometric Standardization Reference Manual, Human Kinetics Books."},{"key":"ref_29","unstructured":"Quetelet, A. (1869). Physique Sociale, ou Essai sur le D\u00e9veloppement des Facult\u00e9s de l\u2019Homme, C. Muquardt."},{"key":"ref_30","unstructured":"World Health Organization (2011). Waist Circumference and Waist-Hip Ratio: Report of a WHO Expert Consultation, Geneva, 8\u201311 December 2008, World Health Organization."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"275","DOI":"10.1111\/j.1467-789X.2011.00952.x","article-title":"Waist-to-height ratio is a better screening tool than waist circumference and BMI for adult cardiometabolic risk factors: Systematic review and meta-analysis","volume":"13","author":"Ashwell","year":"2012","journal-title":"Obes. Rev."},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Li, Y., Gui, J., Liu, H., Guo, L.L., Li, J., Lei, Y., Li, X., Sun, L., Yang, L., and Yuan, T. (2023). Predicting metabolic syndrome by obesity- and lipid-related indices in mid-aged and elderly Chinese: A population-based cross-sectional study. Front. Endocrinol., 14.","DOI":"10.3389\/fendo.2023.1201132"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"94","DOI":"10.1186\/s40001-025-03513-3","article-title":"A body shape index and sarcopenia risk in middle-aged and older adults: Evidence from the China Health and Retirement Longitudinal Study","volume":"31","author":"Shang","year":"2025","journal-title":"Eur. J. Med. Res."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"112937","DOI":"10.1016\/j.nut.2025.112937","article-title":"Association of a body shape index (ABSI) with chronic kidney disease prevalence, all-cause and cardiovascular mortality: A 20-year prospective cohort study of 29,189 U.S. adults","volume":"141","author":"Zhu","year":"2026","journal-title":"Nutrition"},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Kozak, A.T., Lico, M.P., Jarrett, N.L., and Pickett, S.M. (2025). The longitudinal examination of habitual sleep duration in relation to weight gain risk behaviors and body composition changes among college students: Findings from Project STARLIT. Int. J. Behav. Med., advance online publication.","DOI":"10.1007\/s12529-025-10424-4"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Borowska, B., Suder, A., Kli\u015b, K., and Wronka, I. (2022). Associations between sleep duration and anthropometric indices of adiposity in female university students. Int. J. Environ. Res. Public Health, 19.","DOI":"10.3390\/ijerph191811681"},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Song, Y., Gong, L., Lou, X., Zhou, H., Hao, Y., Chen, Q., Zhao, Y., Jiang, X., Li, L., and Wang, X. (2023). Sleep-body composition relationship: Roles of sleep behaviors in general and abdominal obesity in Chinese adolescents aged 17\u201322 years. Nutrients, 15.","DOI":"10.3390\/nu15194130"}],"container-title":["Journal of Functional Morphology and Kinesiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2411-5142\/11\/3\/367\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T14:21:31Z","timestamp":1789050091000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2411-5142\/11\/3\/367"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,10]]},"references-count":37,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2026,9]]}},"alternative-id":["jfmk11030367"],"URL":"https:\/\/doi.org\/10.3390\/jfmk11030367","relation":{},"ISSN":["2411-5142"],"issn-type":[{"value":"2411-5142","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,10]]}}}