Inflection points in longitudinal models: Tracking recovery and return to play following concussion.

ABSTRACT: The return to play (RTP) process may occur during longitudinal studies tracking recovery after concussion. This factor, which is often omitted within statistical designs, could affect the fit and overall interpretation of the statistical model. This article demonstrates the difference in results and interpretation between 2 linear mixed-model designs: (1) a between-group longitudinal (GROUP) analysis and (2) a between-group longitudinal model that used an inflection point to account for changes around the time of RTP (RTP analysis). These analyses were conducted on instrumented balance data collected on 23 concussed athletes and 25 controls over 8 weeks following concussion. Total sway area and the range of mediolateral acceleration were used as outcome measures. No significant findings we

SUBMITTER: Parrington L 

PROVIDER: S-EPMC11495097 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature