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This investigation aimed to quantify the loads acting on the neck as a function of movement magnitude (MM), helmet conditions, and movement axes in rapid movements.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Cervical spine kinematics during rapid head repositioning tasks for flexion-extension (FE) and axial rotation (AR) movements were measured from 15 males and 15 females. Participants moved in either a 35\u00b0 (Near MM) or 70\u00b0 arc (Far MM), while donning a helmet, helmet with NVG, helmet with NVG and a typical CW, and a CW Liner (CWL). Measured EMG from three muscles bilaterally and used to drive a biomechanical model to quantify the compression and shear acting at the C5-C6 joint.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In AR, the NVGs were associated with the largest compression magnitudes, 252 (24) N. CW conditions decreased the maximum compression to 249 (53) N. For FE, the compression was 340\u00a0N for the Far MM trials and 246\u00a0N for Near MMs. Changing the helmet configuration only modestly influenced these magnitudes in FE.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Every 30\u00b0 of MM increased compression by 57 to 105\u00a0N. The reduction of the moment of inertia by 16% in the CWL did not reduce reaction forces. Joint loads scaled proportionately with head-supported weight by a factor of 2.05. The magnitudes of loads suggest a cumulative loading pathway for CNP development.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/00187208221090689","type":"journal-article","created":{"date-parts":[[2022,4,27]],"date-time":"2022-04-27T02:31:05Z","timestamp":1651026665000},"page":"363-376","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Cervical Spine Motion Requirements From Night Vision Goggles May Play a Greater Role in Chronic Neck Pain than Helmet Mass Properties"],"prefix":"10.1177","volume":"66","author":[{"given":"Jeff M.","family":"Barrett","sequence":"first","affiliation":[{"name":"University of Waterloo, Waterloo, ON, USA"}]},{"given":"Laura A.","family":"Healey","sequence":"additional","affiliation":[{"name":"University of Massachusetts Amherst, Amhers, MA, USA"}]},{"given":"Steven L.","family":"Fischer","sequence":"additional","affiliation":[{"name":"University of Waterloo, Waterloo, ON, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2299-4299","authenticated-orcid":false,"given":"Jack P.","family":"Callaghan","sequence":"additional","affiliation":[{"name":"University of Waterloo, Waterloo, ON, USA"}]}],"member":"179","published-online":{"date-parts":[[2022,4,26]]},"reference":[{"issue":"1","key":"e_1_3_4_2_1","first-page":"22","article-title":"Between-day reliability of electromechanical delay of selected neck muscles during performance of maximal isometric efforts","volume":"1","author":"Almosnino S.","year":"2009","unstructured":"Almosnino S., Pelland L., Pedlow S. 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