{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T21:52:49Z","timestamp":1781646769836,"version":"3.54.5"},"reference-count":56,"publisher":"Human Kinetics","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:p>\n                    <jats:bold>\n                      <jats:italic>Purpose<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    This study investigated the effect of treadmill incline on wearable-derived running power output (rPO) at the lactate threshold (LT) and lactate turnpoint (LTP).\n                    <jats:bold>\n                      <jats:italic>Methods<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    Thirteen trained runners (5 females; 23 [5] y) completed 3 rPO-matched, step-incremental treadmill tests to exhaustion at fixed inclines of 0%, 5%, and 10%. Running speed was adjusted to maintain consistent rPO across conditions using standardized calculations. During each test, breath-by-breath oxygen uptake (\n                    <jats:inline-formula\/>\n                    ) and rPO (via Stryd power meter) were continuously measured. Blood lactate concentration was measured during the final 30 seconds of each 3-minute stage. The LT and LTP were identified from the blood lactate concentration versus rPO using 3-segment and modified-poly-D\n                    <jats:sub>max<\/jats:sub>\n                    fitting models, respectively. A repeated-measures analysis of variance assessed between-condition differences in LT and LTP (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&lt;\u2009.05).\n                    <jats:bold>\n                      <jats:italic>Results<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    The\n                    <jats:inline-formula\/>\n                    \u2013rPO relationship was not different across incline conditions (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.147). The rPO at LT did not differ between inclines (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.454): 259 (49) W, 252 (43)\u00a0W, and 249 (56)\u00a0W for 0%, 5%, and 10%, respectively, nor did rPO at LTP (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.604): 309 (58)\u00a0W, 316 (59)\u00a0W, and 312 (60)\u00a0W for 0%, 5%, and 10%, respectively. The\n                    <jats:inline-formula\/>\n                    at LT (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.727) and LTP (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.470) also showed no significant differences across conditions.\n                    <jats:bold>\n                      <jats:italic>Conclusion<\/jats:italic>\n                    <\/jats:bold>\n                    <jats:italic>:<\/jats:italic>\n                    The rPO at LT and LTP in highly trained runners are consistent across treadmill inclines between 0% and 10%. These findings support the use of rPO as a metric for monitoring exercise intensity across different gradient conditions in both training and performance settings.\n                  <\/jats:p>","DOI":"10.1123\/ijspp.2025-0579","type":"journal-article","created":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T07:56:03Z","timestamp":1775030163000},"page":"815-823","source":"Crossref","is-referenced-by-count":0,"title":["Running Power at Lactate Threshold and Lactate Turnpoint Are Unaltered by Treadmill Incline"],"prefix":"10.1123","volume":"21","author":[{"given":"Dami C.","family":"Adejuwon","sequence":"first","affiliation":[{"name":"School of Kinesiology, The University of Western Ontario, London, ON, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robin","family":"Faricier","sequence":"additional","affiliation":[{"name":"School of Kinesiology, The University of Western Ontario, London, ON, Canada"},{"name":"Toronto General Research Institute, Toronto General Hospital, Toronto, ON, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5656-373X","authenticated-orcid":true,"given":"Daniel A.","family":"Keir","sequence":"additional","affiliation":[{"name":"School of Kinesiology, The University of Western Ontario, London, ON, Canada"},{"name":"Toronto General Research Institute, Toronto General Hospital, Toronto, ON, Canada"},{"name":"Lawson Health Research Institute, London, ON, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"issue":"10","key":"r1","series-title":"Sports Med","doi-asserted-by":"publisher","first-page":"1729","DOI":"10.1007\/s40279-020-01322-8","article-title":"An examination and critique of current methods to determine exercise intensity","volume":"50","author":"Jamnick NA","year":"2020","unstructured":"Jamnick NA, Pettitt RW, Granata C, Pyne DB, Bishop DJ. 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