{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T17:40:09Z","timestamp":1769881209903,"version":"3.49.0"},"reference-count":82,"publisher":"Human Kinetics","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,8,1]]},"abstract":"<jats:p>Our purpose was to investigate the reliability and minimal detectable change characteristics of a smartphone-based assessment of single- and dual-task gait and cognitive performance. Uninjured adolescent athletes (n\u2009=\u200917; mean age\u2009=\u200916.6, SD\u2009=\u20091.3 y; 47% female) completed assessments initially and again 4 weeks later. The authors collected data via an automated smartphone-based application while participants completed a series of tasks under (1)\u00a0single-task cognitive, (2)\u00a0single-task gait, and (3)\u00a0dual-task cognitive-gait conditions. The cognitive task was a series of continuous auditory Stroop cues. Average gait speed was consistent between testing sessions in single-task (0.98, SD\u2009=\u20090.21 vs 0.96, SD\u2009=\u20090.19\u00a0m\/s;<jats:italic>P<\/jats:italic>\u2009=\u2009.60;<jats:italic>r<\/jats:italic>\u2009=\u2009.89) and dual-task (0.92, SD\u2009=\u20090.22 vs 0.89, SD\u2009=\u20090.22\u00a0m\/s;<jats:italic>P<\/jats:italic>\u2009=\u2009.37;<jats:italic>r<\/jats:italic>\u2009=\u2009.88) conditions. Response accuracy was moderately consistent between assessments in single-task standing (82.3% accurate, SD\u2009=\u200917.9% vs 84.6% accurate, SD\u2009=\u200920.1%;<jats:italic>P<\/jats:italic>\u2009=\u2009.64;<jats:italic>r<\/jats:italic>\u2009=\u2009.52) and dual-task gait (89.4% accurate, SD\u2009=\u200915.9% vs 85.8% accurate, SD\u2009=\u200920.2%;<jats:italic>P<\/jats:italic>\u2009=\u2009.23;<jats:italic>r<\/jats:italic>\u2009=\u2009.81) conditions. Our results indicate automated motor-cognitive dual-task outcomes obtained within a smartphone-based assessment are consistent across a 1-month period. Further research is required to understand how this assessment performs in the setting of sport-related concussion. Given the relative reliability of values obtained, a smartphone-based evaluation may be considered for use to evaluate changes across time among adolescents, postconcussion.<\/jats:p>","DOI":"10.1123\/jab.2020-0391","type":"journal-article","created":{"date-parts":[[2021,7,13]],"date-time":"2021-07-13T13:45:09Z","timestamp":1626183909000},"page":"380-387","source":"Crossref","is-referenced-by-count":10,"title":["Reliability and Minimal Detectable Change for a Smartphone-Based Motor-Cognitive Assessment: Implications for Concussion Management"],"prefix":"10.1123","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2955-0191","authenticated-orcid":true,"given":"David R.","family":"Howell","sequence":"first","affiliation":[{"name":"1Children\u2019s Hospital Colorado"},{"name":"2University of Colorado School of Medicine"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Corrine N.","family":"Seehusen","sequence":"additional","affiliation":[{"name":"1Children\u2019s Hospital Colorado"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mathew J.","family":"Wingerson","sequence":"additional","affiliation":[{"name":"1Children\u2019s Hospital Colorado"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julie C.","family":"Wilson","sequence":"additional","affiliation":[{"name":"1Children\u2019s Hospital Colorado"},{"name":"2University of Colorado School of Medicine"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert C.","family":"Lynall","sequence":"additional","affiliation":[{"name":"3University of Georgia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vipul","family":"Lugade","sequence":"additional","affiliation":[{"name":"4Control One 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