{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T19:47:47Z","timestamp":1771530467267,"version":"3.50.1"},"reference-count":32,"publisher":"Canadian Science Publishing","issue":"7","license":[{"start":{"date-parts":[[2016,7,1]],"date-time":"2016-07-01T00:00:00Z","timestamp":1467331200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":["cdnsciencepub.com"],"crossmark-restriction":false},"short-container-title":["Appl. Physiol. Nutr. Metab."],"published-print":{"date-parts":[[2016,7]]},"abstract":"<jats:p> This study examined changes in salivary testosterone and cortisol following resistance and plyometric exercise protocols in active boys. In a crossover experimental design, 26 peri-pubertal (12- to 14-year-old) soccer players performed 2 exercise trials in random order, on separate evenings, 1 week apart. Each trial included a 30 min control session followed by 30 min of either resistance or plyometric exercise. Saliva was collected at baseline, post-control (i.e., pre-exercise), and 5 and 30 min post-exercise. There were no significant differences in the baseline hormone concentrations between trials or between weeks (p &gt; 0.05). A significant effect for time was found for testosterone (p = 0.02, [Formula: see text] = 0.14), which increased from pre-exercise to 5 min post-exercise in both the resistance (27% \u00b1 5%) and plyometric (12% \u00b1 6%) protocols. Cortisol decreased to a similar extent in both trials (p = 0.009, [Formula: see text] = 0.19) from baseline to post-control and then to 5 min post-exercise, following its typical circadian decrease in the evening hours. However, a significant protocol-by-time interaction was observed for cortisol, which increased 30 min after the plyometrics (+31% \u00b1 12%) but continued to decrease following the resistance protocol (\u221221% \u00b1 5%). Our results suggest that in young male athletes, multiple modes of exercise can lead to a transient anabolic state, thus maximizing the beneficial effects on growth and development, when exercise is performed in the evening hours. <\/jats:p>","DOI":"10.1139\/apnm-2015-0668","type":"journal-article","created":{"date-parts":[[2016,3,1]],"date-time":"2016-03-01T22:40:36Z","timestamp":1456872036000},"page":"714-718","update-policy":"https:\/\/doi.org\/10.1139\/csp-crossmark-policy","source":"Crossref","is-referenced-by-count":15,"title":["Salivary cortisol and testosterone responses to resistance and plyometric exercise in 12- to 14-year-old boys"],"prefix":"10.1139","volume":"41","author":[{"given":"Panagiota","family":"Klentrou","sequence":"first","affiliation":[{"name":"Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Angeliki","family":"Giannopoulou","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brandon J.","family":"McKinlay","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Phillip","family":"Wallace","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cameron","family":"Muir","sequence":"additional","affiliation":[{"name":"Department of Psychology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bareket","family":"Falk","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Diane","family":"Mack","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"155","reference":[{"key":"refg1\/ref1","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0b013e31816357d4"},{"key":"refg3\/ref3","unstructured":"Borer, K.T. 2003. 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