{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T03:33:43Z","timestamp":1764905623407},"reference-count":0,"publisher":"Human Kinetics","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,10]]},"abstract":"<jats:sec sec-type=\"purpose\"><jats:title>Purpose:<\/jats:title><jats:p>To employ cluster analysis to assess if cyclists would opt for different strategies in terms of neuromuscular patterns when pedaling at the power output of their second ventilatory threshold (PO<jats:sub>VT2<\/jats:sub>) compared with cycling at their maximal power output (PO<jats:sub>MAX<\/jats:sub>).<\/jats:p><\/jats:sec><jats:sec sec-type=\"methods\"><jats:title>Methods:<\/jats:title><jats:p>Twenty athletes performed an incremental cycling test to determine their power output (PO<jats:sub>MAX<\/jats:sub> and PO<jats:sub>VT2<\/jats:sub>; first session), and pedal forces, muscle activation, muscle\u2013tendon unit length, and vastus lateralis architecture (fascicle length, pennation angle, and muscle thickness) were recorded (second session) in PO<jats:sub>MAX<\/jats:sub> and PO<jats:sub>VT2<\/jats:sub>. Athletes were assigned to 2 clusters based on the behavior of outcome variables at PO<jats:sub>VT2<\/jats:sub> and PO<jats:sub>MAX<\/jats:sub> using cluster analysis.<\/jats:p><\/jats:sec><jats:sec sec-type=\"results\"><jats:title>Results:<\/jats:title><jats:p>Clusters 1 (n = 14) and 2 (n = 6) showed similar power output and oxygen uptake. Cluster 1 presented larger increases in pedal force and knee power than cluster 2, without differences for the index of effectiveness. Cluster 1 presented less variation in knee angle, muscle\u2013tendon unit length, pennation angle, and tendon length than cluster 2. However, clusters 1 and 2 showed similar muscle thickness, fascicle length, and muscle activation. When cycling at PO<jats:sub>VT2<\/jats:sub> vs PO<jats:sub>MAX<\/jats:sub>, cyclists could opt for keeping a constant knee power and pedal-force production, associated with an increase in tendon excursion and a constant fascicle length.<\/jats:p><\/jats:sec><jats:sec sec-type=\"conclusions\"><jats:title>Conclusions:<\/jats:title><jats:p>Increases in power output lead to greater variations in knee angle, muscle\u2013tendon unit length, tendon length, and pennation angle of vastus lateralis for a similar knee-extensor activation and smaller pedal-force changes in cyclists from cluster 2 than in cluster 1.<\/jats:p><\/jats:sec>","DOI":"10.1123\/ijspp.2015-0142","type":"journal-article","created":{"date-parts":[[2016,2,9]],"date-time":"2016-02-09T21:14:50Z","timestamp":1455052490000},"page":"959-964","source":"Crossref","is-referenced-by-count":5,"title":["Differences in Pedaling Technique in Cycling: A Cluster Analysis"],"prefix":"10.1123","volume":"11","author":[{"given":"F\u00e1bio J.","family":"Lanferdini","sequence":"first","affiliation":[]},{"given":"Rodrigo R.","family":"Bini","sequence":"additional","affiliation":[]},{"given":"Pedro","family":"Figueiredo","sequence":"additional","affiliation":[]},{"given":"Fernando","family":"Diefenthaeler","sequence":"additional","affiliation":[]},{"given":"Carlos B.","family":"Mota","sequence":"additional","affiliation":[]},{"given":"Anton","family":"Arndt","sequence":"additional","affiliation":[]},{"given":"Marco A.","family":"Vaz","sequence":"additional","affiliation":[]}],"member":"100","container-title":["International Journal of Sports Physiology and Performance"],"original-title":[],"link":[{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/11\/7\/article-p959.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.humankinetics.com\/downloadpdf\/journals\/ijspp\/11\/7\/article-p959.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,19]],"date-time":"2022-05-19T18:36:13Z","timestamp":1652985373000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.humankinetics.com\/view\/journals\/ijspp\/11\/7\/article-p959.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,10]]},"references-count":0,"journal-issue":{"issue":"7"},"URL":"https:\/\/doi.org\/10.1123\/ijspp.2015-0142","relation":{},"ISSN":["1555-0265","1555-0273"],"issn-type":[{"value":"1555-0265","type":"print"},{"value":"1555-0273","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,10]]}}}