{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T16:56:16Z","timestamp":1782492976902,"version":"3.54.5"},"reference-count":25,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2023,5,3]],"date-time":"2023-05-03T00:00:00Z","timestamp":1683072000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["American J Hum Biol"],"published-print":{"date-parts":[[2023,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>Traditional jumping\u2013dance rituals performed by Maasai men involve prolonged physical exertion that may contribute significantly to overall physical activity level. We aimed to objectively quantify the metabolic intensity of jumping\u2013dance activity and assess associations with habitual physical activity and cardiorespiratory fitness (CRF).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Twenty Maasai men (18\u201337\u2009years) from rural Tanzania volunteered to participate in the study. Habitual physical activity was monitored using combined heart rate (HR) and movement sensing over 3\u2009days, and jumping\u2013dance engagement was self\u2010reported. A 1\u2010h jumping\u2013dance session resembling a traditional ritual was organized, during which participants' vertical acceleration and HR were monitored. An incremental, submaximal 8\u2010min step test was performed to calibrate HR to physical activity energy expenditure (PAEE) and assess CRF.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean (range) habitual PAEE was 60 (37\u2013116) kJ\u2009day<jats:sup>\u22121<\/jats:sup>\u2009kg<jats:sup>\u22121<\/jats:sup>, and CRF was 43 (32\u201354) mL O<jats:sub>2<\/jats:sub>\u2009min<jats:sup>\u22121<\/jats:sup>\u2009kg<jats:sup>\u22121<\/jats:sup>. The jumping\u2013dance activity was performed at an absolute HR of 122 (83\u2013169) beats\u00b7min<jats:sup>\u22121<\/jats:sup>, and PAEE of 283 (84\u2013484) J\u2009min<jats:sup>\u22121<\/jats:sup>\u2009kg<jats:sup>\u22121<\/jats:sup> or 42 (18\u201375)% when expressed relative to CRF. The total PAEE for the session was 17 (range 5\u201329) kJ\u2009kg<jats:sup>\u22121<\/jats:sup>, ~28% of the daily total. Self\u2010reported engagement in habitual jumping\u2013dance frequency was 3.8 (1\u20137) sessions\/week, with a total duration of 2.1 (0.5\u20136.0) h\/session.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Intensity during traditional jumping\u2013dance activity was moderate, but on average sevenfold higher than habitual physical activity. These rituals are common, and can make a substantial contribution to overall physical activity in Maasai men, and thus be promoted as a culture\u2010specific activity to increase energy expenditure and maintain good health in this population.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ajhb.23907","type":"journal-article","created":{"date-parts":[[2023,5,3]],"date-time":"2023-05-03T10:00:19Z","timestamp":1683108019000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Energy expenditure and intensity of ritual jumping\u2013dancing in male <scp>M<\/scp>aasai"],"prefix":"10.1002","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2142-522X","authenticated-orcid":false,"given":"Dirk L.","family":"Christensen","sequence":"first","affiliation":[{"name":"Department of Public Health University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kate","family":"Westgate","sequence":"additional","affiliation":[{"name":"MRC Epidemiology Unit University of Cambridge  Cambridge UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lewis","family":"Griffiths","sequence":"additional","affiliation":[{"name":"MRC Epidemiology Unit University of Cambridge  Cambridge UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph","family":"Sironga","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine Kilimanjaro Christian Medical University College  Moshi Tanzania"},{"name":"Department of Internal Medicine Monduli District Hospital  Monduli Tanzania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Venance P.","family":"Maro","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine Kilimanjaro Christian Medical University College  Moshi Tanzania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00f8rn W.","family":"Helge","sequence":"additional","affiliation":[{"name":"Biomedical Institute University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steen","family":"Larsen","sequence":"additional","affiliation":[{"name":"Biomedical Institute University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ib C.","family":"Bygbjerg","sequence":"additional","affiliation":[{"name":"Department of Public Health University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaushik L.","family":"Ramaiya","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine Shree Hindu Mandal Hospital  Dar es Salaam Tanzania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jorgen","family":"Jensen","sequence":"additional","affiliation":[{"name":"Department of Physical Performance Norwegian School of Sport Sciences  Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soren","family":"Brage","sequence":"additional","affiliation":[{"name":"MRC Epidemiology Unit University of Cambridge  Cambridge UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,5,3]]},"reference":[{"key":"e_1_2_12_2_1","volume-title":"The last of the Maasai","author":"Amin A.","year":"1987"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.2337\/dc08-1538"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyq098"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00421-005-0112-6"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00092.2006"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajhb.22239"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajhb.22303"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.diabres.2009.03.007"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajhb.23674"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajhb.1310060610"},{"key":"e_1_2_12_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/375052a0"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1079\/phn2005801"},{"key":"e_1_2_12_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajhb.1310060612"},{"key":"e_1_2_12_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajhb.23199"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/319668a0"},{"key":"e_1_2_12_17_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00421-007-0480-1"},{"key":"e_1_2_12_18_1","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/51.4.563"},{"key":"e_1_2_12_19_1","volume-title":"Maasai","author":"Saitoti T. 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