{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T17:24:32Z","timestamp":1783013072342,"version":"3.54.6"},"reference-count":43,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,5,9]],"date-time":"2025-05-09T00:00:00Z","timestamp":1746748800000},"content-version":"vor","delay-in-days":8,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,5,1]],"date-time":"2025-05-01T00:00:00Z","timestamp":1746057600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100014438","name":"Business Finland","doi-asserted-by":"publisher","award":["1426\/31\/2022"],"award-info":[{"award-number":["1426\/31\/2022"]}],"id":[{"id":"10.13039\/501100014438","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005633","name":"Syd\u00e4ntutkimuss\u00e4\u00e4ti\u00f6","doi-asserted-by":"publisher","award":["230078"],"award-info":[{"award-number":["230078"]}],"id":[{"id":"10.13039\/501100005633","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["R\u201000083"],"award-info":[{"award-number":["R\u201000083"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["physoc.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Physiological Reports"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    We study the estimation of aerobic threshold (AeT) and anaerobic threshold (AnT) using dynamical detrended fluctuation analysis (DDFA). Conventionally, the thresholds are estimated in laboratory settings, where the subject performs an incremental exercise test on a cycloergometer or treadmill. We compared DDFA\u2010based thresholds (DDFAT\n                    <jats:sub>1<\/jats:sub>\n                    and DDFAT\n                    <jats:sub>2<\/jats:sub>\n                    ) with lactate thresholds (LT\n                    <jats:sub>1<\/jats:sub>\n                    and LT\n                    <jats:sub>2<\/jats:sub>\n                    ) and examined thresholds derived from theoretical and measured maximal heart rates (HR). The analysis was conducted on 58 subjects undergoing an incremental treadmill running test. Our findings indicate significant discrepancies between thresholds derived from theoretical and measured maximal HRs compared to lactate thresholds. Specifically, theoretical maximal HR thresholds consistently underestimated lactate thresholds, exhibiting systematic bias. Measured maximal HR thresholds also showed a consistent underestimation, though with improved alignment to lactate thresholds. In contrast, the DDFA\u2010based method demonstrated reasonable agreement with lactate thresholds and lacked systematic bias. The DDFA\u2010based approach offers a simple and accurate alternative for estimating AeT and AnT. Its potential for continuous monitoring makes it suitable for integration into wearable devices such as smartwatches and heart rate monitors.\n                  <\/jats:p>","DOI":"10.14814\/phy2.70241","type":"journal-article","created":{"date-parts":[[2025,5,15]],"date-time":"2025-05-15T01:37:43Z","timestamp":1747273063000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Threshold estimation in running using dynamical correlations of RR intervals"],"prefix":"10.14814","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2812-5879","authenticated-orcid":false,"given":"Matias","family":"Kanniainen","sequence":"first","affiliation":[{"name":"Computational Physics Laboratory Tampere University  Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vesa","family":"Laatikainen\u2010Raussi","sequence":"additional","affiliation":[{"name":"Faculty of Sport and Health Sciences University of Jyv\u00e4skyl\u00e4  Jyv\u00e4skyl\u00e4 Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teemu","family":"Pukkila","sequence":"additional","affiliation":[{"name":"Computational Physics Laboratory Tampere University  Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krista","family":"Vohlakari","sequence":"additional","affiliation":[{"name":"Faculty of Sport and Health Sciences University of Jyv\u00e4skyl\u00e4  Jyv\u00e4skyl\u00e4 Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Esa","family":"Hynynen","sequence":"additional","affiliation":[{"name":"Finnish Institute of High Performance Sport KIHU  Jyv\u00e4skyl\u00e4 Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johanna K.","family":"Ihalainen","sequence":"additional","affiliation":[{"name":"Faculty of Sport and Health Sciences University of Jyv\u00e4skyl\u00e4  Jyv\u00e4skyl\u00e4 Finland"},{"name":"Finnish Institute of High Performance Sport KIHU  Jyv\u00e4skyl\u00e4 Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Esa","family":"R\u00e4s\u00e4nen","sequence":"additional","affiliation":[{"name":"Computational Physics Laboratory Tampere University  Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,5,9]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/HJR.0b013e328304fed4"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/096228029900800204"},{"issue":"6","key":"e_1_2_12_4_1","first-page":"24","article-title":"A review: Maximal oxygen uptake (vo2 max) and its estimation methods","volume":"6","author":"Buttar K. 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