{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:43:37Z","timestamp":1760233417985,"version":"build-2065373602"},"reference-count":43,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2021,1,11]],"date-time":"2021-01-11T00:00:00Z","timestamp":1610323200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Javna agencija za raziskovalno dejavnost Republike Slovenije","award":["L5-1845","P5-0147"],"award-info":[{"award-number":["L5-1845","P5-0147"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Assessment of lateral symmetries (LS) of lower limbs has been widely investigated. However, there are no studies about LS during exposure to high eccentric and concentric loads during flywheel (FW) squats. A total of 422 young, physically active participants performed squats on an FW device with different equidistant loads (0.05, 0.125 and 0.2 kg\u2219m2). The mean and peak force of the left and right leg were assessed for the concentric and eccentric contaction phase. LS values were calculated for each load and phase of squat. Our results showed that the absolute mean and peak force of the concentric and eccentric phase of contraction had excellent reliability, while LS values were more reliable when eccentric force was used for their calculation. Mean and peak forces were increased with the higher FW load. In general, we found a decrease in LS values in the concentric phase of contraction with the higher load. Moreover, values of LS are similar to a wide range of other functional movements. Nevertheless, symmetrical force application during squatting on a FW device should be satisfied regardless of the FW load. Due to the large sample size, our results are valuable as a reference point when athletes are evaluated during training.<\/jats:p>","DOI":"10.3390\/sym13010111","type":"journal-article","created":{"date-parts":[[2021,1,11]],"date-time":"2021-01-11T20:32:47Z","timestamp":1610397167000},"page":"111","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Influence of Load and Phase of Contraction on Lateral Symmetries in Flywheel Squats"],"prefix":"10.3390","volume":"13","author":[{"given":"Darjan","family":"Smajla","sequence":"first","affiliation":[{"name":"Faculty of Health Sciences, University of Primorska, 6310 Izola, Slovenia"},{"name":"InnoRenew CoE, Livade 6, 6310 Izola, Slovenia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8353-2958","authenticated-orcid":false,"given":"Darjan","family":"Spudi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Sport, University of Ljubljana, 1000 Ljubljana, Slovenia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0747-3735","authenticated-orcid":false,"given":"Nejc","family":"\u0160arabon","sequence":"additional","affiliation":[{"name":"Faculty of Health Sciences, University of Primorska, 6310 Izola, Slovenia"},{"name":"InnoRenew CoE, Livade 6, 6310 Izola, Slovenia"},{"name":"Andrej Maru\u0161i\u010d Institute, University of Primorska, Titov trg 4, 6000 Koper, Slovenia"},{"name":"Laboratory for Motor Control and Motor Behaviour, S2P, Science to Practice, Ltd., 1000 Ljubljana, Slovenia"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,11]]},"reference":[{"key":"ref_1","first-page":"188","article-title":"Lower-extremity strength ratios of professional soccer players according to field position","volume":"47","author":"Ruas","year":"2015","journal-title":"Kinesiology"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"342","DOI":"10.1519\/JSC.0b013e318220e0a3","article-title":"Influence of weight distribution asymmetry on the biomechanics of a barbell back squat","volume":"26","author":"Sato","year":"2012","journal-title":"J. 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