The 50% and 75% likelihood of concussion values for head angular acceleration in the coronal plane were 1747 and 2296 rad/s, respectively.
The 50%and75%5% likelihood of concussion values for resultant linear head acceleration in this study were 65.1 and 88.5 g, respectively.
32 The 50% and 75% likelihood of concussion values for resultant linear head acceleration in this study were 65.1 and 88.5 g, respectively (table 3).
32 The specific aims of the study were to (1) investigate the dynamics, impact location and kinematics, of no-injury and concussive impacts to the unprotected human head and (2) consider concussion tolerance values.
Given the numerous options from which ATs could select, we grouped these values into: concussion, contusion, dislocation, fracture, inflammatory conditions, laceration, spasm, sprain, strain, stress fracture, subluxation, and other.
Interestingly, movement precision (VE) showed the opposite effect, increasing from a very small amount (precise) for no-history control participants in the 1 level condition to a much greater amount (imprecise) in the 2 level condition (p < 0.05), an increase not seen for concussion history participants, whose values were in the middle range relative to no-history control performance (cf. Tab. 5).
For the naïve raters, 6 of 20 (30%) components of the form, and 5 of 6 (83%) concussions signs, had κ values between.60 and.79 ('moderate' agreement), while 2 of 2 (100%) interval/ratio variables of the form had very good ICC.
The value for concussion cases, 7951 rad/s, was slightly higher than the range reported by previous studies, 5022 7912 rad/s (table 2); however, only the ATD reconstruction study by Newman et al 6 8 and four instrumented helmet studies 16 21 23 24 reported angular acceleration results.
Statistical t tests were used to analyse the mean kinematic values of the concussion and no-injury cases; the results were compared to previous concussion studies in American football and ice hockey.
The agent, Pat Brisson, said on Toronto radio that even partial insurance for Crosby could cost a club between $200,000 to $400,000 per month, given Crosby's value and his concussion history.
To characterize the clinical utility of Sport Concussion Assessment Tool 3 (SCAT3) baseline and normative reference values for the assessment of acute concussion; and to identify the sensitivity of each SCAT3 subcomponent to the acute effects of concussion.
