Reaction Time and Joint Kinematics During Functional Movement in Recently Concussed Individuals.
Arch Phys Med Rehabil
; 99(5): 880-886, 2018 05.
Article
em En
| MEDLINE
| ID: mdl-29337022
ABSTRACT
OBJECTIVE:
To compare movement reaction time and joint kinematics between athletes with recent concussion and matched control recreational athletes during 3 functional tasks.DESIGN:
Cross-sectional.SETTING:
Laboratory.PARTICIPANTS:
College-aged recreational athletes (N=30) comprising 2 groups (15 participants each) (1) recent concussion group (median time since concussion, 126d; range, 28-432d) and (2) age- and sex-matched control group with no recent concussions.INTERVENTIONS:
We investigated movement reaction time and joint kinematics during 3 tasks (1) jump landing, (2) anticipated cut, and (3) unanticipated cut. MAIN OUTCOMEMEASURES:
Reaction time and reaction time cost (jump landing reaction time-cut reaction time/jump landing reaction time×100%), along with trunk, hip, and knee joint angles in the sagittal and frontal planes at initial ground contact.RESULTS:
There were no reaction time between-group differences, but the control group displayed improved reaction time cost (10.7%) during anticipated cutting compared with the concussed group (0.8%; P=.030). The control group displayed less trunk flexion than the concussed group during the nondominant anticipated cut (5.1° difference; P=.022). There were no other kinematic between-group differences (P≥.079).CONCLUSIONS:
We observed subtle reaction time and kinematic differences between individuals with recent concussion and those without concussion more than a month after return to activity after concussion. The clinical interpretation of these findings remains unclear, but may have future implications for postconcussion management and rehabilitation.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Tempo de Reação
/
Concussão Encefálica
/
Movimento
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Adult
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Female
/
Humans
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Male
Idioma:
En
Revista:
Arch Phys Med Rehabil
Ano de publicação:
2018
Tipo de documento:
Article