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To address this, we investigated the biomechanical impact characteristics of college\u2010level Canadian varsity football players, aiming to elucidate the underlying factors that drive subconcussive impacts. Sixty\u2010four athletes were outfitted with head impact sensors during games, practices, and training camps. We examined impact frequency, peak linear and rotational acceleration, impact duration, area under the acceleration\u2010time curve (AUAC), impulse, and head jerk, grouping participants as small skill (SS), big skill (BS), or linemen (LN). Significant differences emerged based on both player position and session type. Linemen experienced the highest AUAC and impulse values, whereas SS and BS positions were associated with less frequent but higher\u2010magnitude impacts. Session type further influenced exposure, with games producing greater peak accelerations and longer impact durations than practices or training camps. These results demonstrate that analyzing linear acceleration time series reveals more nuanced insights into the complex dynamics of subconcussive impacts than peak magnitudes alone. Such analyses establish a critical foundation for linking biomechanical parameters to injury risk and neurophysiological biomarkers, ultimately informing data\u2010driven strategies to enhance athlete safety in contact sports.<\/jats:p>","DOI":"10.1002\/ejsc.70010","type":"journal-article","created":{"date-parts":[[2025,8,5]],"date-time":"2025-08-05T04:49:44Z","timestamp":1754369384000},"source":"Crossref","is-referenced-by-count":2,"title":["Impact Biomechanics Reveal Positional and Session Type Differences in Canadian Collegiate Football"],"prefix":"10.1002","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1908-5871","authenticated-orcid":false,"given":"Sebastian","family":"D'Amario","sequence":"first","affiliation":[{"name":"Centre for Neuroscience Studies Queen's University  Kingston Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaden T.","family":"Shearer","sequence":"additional","affiliation":[{"name":"Centre for Neuroscience Studies 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