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Balance regularity among former high school football players with or without a history of concussion

Title
Balance regularity among former high school football players with or without a history of concussion
Author
고지현
Keywords
mild traumatic brain injuries; postural stability; retired athletes
Issue Date
2018-02
Publisher
NATL ATHLETIC TRAINERS ASSOC INC
Citation
JOURNAL OF ATHLETIC TRAINING, v. 53, No. 2, Page. 109-114
Abstract
Context:  Subclinical postural-control changes may persist beyond the point when athletes are considered clinically recovered postconcussion. Objective:  To compare postural-control performance between former high school football players with or without a history of concussion using linear and nonlinear metrics. Design:  Case-control study. Setting:  Clinical research laboratory. Patients or Other Participants:  A total of 11 former high school football players (age range, 45–60 years) with 2 or more concussions and 11 age- and height-matched former high school football players without a history of concussion. No participant had college or professional football experience. Main Outcome Measure(s):  Participants completed the Sensory Organization Test. We compared postural control (linear: equilibrium scores; nonlinear: sample and multiscale entropy) between groups using a 2 × 3 analysis of variance across conditions 4 to 6 (4: eyes open, sway-referenced platform; 5: eyes closed, sway-referenced platform; 6: eyes open, sway-referenced surround and platform). Results:  We observed a group-by-condition interaction effect for medial-lateral sample entropy (F2,40 = 3.26, P = .049, ηp2 = 0.140). Participants with a history of concussion presented with more regular medial-lateral sample entropy values (0.90 ± 0.41) for condition 5 than participants without a history of concussion (1.30 ± 0.35; mean difference = −0.40; 95% confidence interval [CI] = −0.74, −0.06; t20 = −2.48, P = .02), but conditions 4 (mean difference = −0.11; 95% CI: −0.37, 0.15; t20 = −0.86, P = .40) and 6 (mean difference = −0.25; 95% CI: −0.55, 0.06; t20 = −1.66, P = .11) did not differ between groups. Conclusions:  Postconcussion deficits, detected using nonlinear metrics, may persist long after injury resolution. Subclinical concussion deficits may persist for years beyond clinical concussion recovery.
URI
http://www.natajournals.org/doi/full/10.4085/1062-6050-326-16http://repository.hanyang.ac.kr/handle/20.500.11754/105357
ISSN
1062-6050
DOI
10.4085/1062-6050-326-16
Appears in Collections:
COLLEGE OF SPORTS AND ARTS[E](예체능대학) > ETC
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