{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:12:26Z","timestamp":1760231546467,"version":"build-2065373602"},"reference-count":50,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2022,9,27]],"date-time":"2022-09-27T00:00:00Z","timestamp":1664236800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In ice hockey, the butterfly style\/stance is a technique distinguished by the goalkeepers (goalie) dropping to their knees to block attempts to score. Although this goalie style has been around for many years, comparisons between on and off-ice attire has not been undertaken. Therefore, this preliminary study compared differences in torso acceleration and energy expenditure by way of the Metabolic Equivalent of Task (MET) during off-ice and on-ice butterfly stances\/saves. Seven participants each performed 8 on-ice butterfly saves\/stances whilst wearing full hockey attire followed by 8 off-ice butterfly stances without wearing full hockey attire whilst torso acceleration was collected. The off-ice movement significantly increased vertical torso acceleration (p &lt; 0.01, d &gt; 0.90) with increased MET, compared to on-ice motion. Despite no significant difference in anteroposterior and mediolateral torso kinematics, vector magnitudes were significantly greater (p &lt; 0.01, d &gt; 0.90) when the stance was performed off-ice. The increased vertical acceleration observed when goalies performed the movement off-ice could be due to a failure to maintain adequate posture without the support of the external load. The results of this study may help inform off-ice training interventions for ice hockey goalkeeping.<\/jats:p>","DOI":"10.3390\/s22197320","type":"journal-article","created":{"date-parts":[[2022,9,28]],"date-time":"2022-09-28T03:30:37Z","timestamp":1664335837000},"page":"7320","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Float like a Butterfly: Comparison between Off and On-Ice Torso Kinematics during the Butterfly Stance in Ice Hockey Goalkeepers"],"prefix":"10.3390","volume":"22","author":[{"given":"Stuart A","family":"Evans","sequence":"first","affiliation":[{"name":"College of Health and Human Science, Charles Darwin University, Darwin, NT 0810, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rodrigo","family":"Bini","sequence":"additional","affiliation":[{"name":"La Trobe Rural Health School, La Trobe University, Bendigo, VIC 3550, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregory","family":"Davis","sequence":"additional","affiliation":[{"name":"School of Science, Psychology and Sport, Federation University Australia, Mount Helen, VIC 3842, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5571-644X","authenticated-orcid":false,"given":"James","family":"Lee","sequence":"additional","affiliation":[{"name":"College of Health and Human Science, Charles Darwin University, Darwin, NT 0810, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1535","DOI":"10.1519\/JSC.0b013e318181ac20","article-title":"Relationship of physical fitness test results and hockey playing potential in elite-level ice hockey players","volume":"22","author":"Burr","year":"2008","journal-title":"J. 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