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1.

Objective

To characterize behavioral and health outcomes in veterans with traumatic brain injury (TBI) acquired in nondeployment and deployment settings.

Design

Cross-sectional assessment evaluating TBI acquired during and outside of deployment, mental and behavioral health symptoms, and diagnoses.

Setting

Veterans Affairs Medical Centers.

Participants

Iraq and Afghanistan veterans who were deployed to a warzone (N=1399).

Interventions

Not applicable.

Main Outcome Measures

Comprehensive lifetime TBI interview, Structured Clinical Interview for DSM-IV Disorders, Combat Exposure Scale, and behavioral and health measures.

Results

There was a main effect of deployment TBI on depressive symptoms, posttraumatic stress symptoms, poor sleep quality, substance use, and pain. Veterans with deployment TBI were also more likely to have a diagnosis of bipolar, major depressive, alcohol use, and posttraumatic stress disorders than those who did not have a deployment TBI.

Conclusions

TBIs acquired during deployment are associated with different behavioral and health outcomes than TBI acquired in nondeployment environments. The presence of TBI during deployment is associated with poorer behavioral outcomes, as well as a greater lifetime prevalence of behavioral and health problems in contrast to veterans without deployment TBI. These results indicate that problems may persist chronically after a deployment TBI and should be considered when providing care for veterans. Veterans with deployment TBI may require treatment alterations to improve engagement and outcomes.  相似文献   

2.
3.

Objective

To assess the association between perceived stigma and discrimination and caregiver strain, caregiver well-being, and patient community reintegration.

Design

A cross-sectional survey study of 564 informal caregivers of U.S. military service veterans of wars in Iraq and Afghanistan who experienced traumatic brain injuries or polytrauma (TBI/PT).

Setting

Care settings of community-dwelling former inpatients of U.S. Department of Veterans Affairs Polytrauma Rehabilitation Centers.

Participants

Caregivers of former inpatients (N=564), identified through next-of-kin records and subsequent nominations.

Interventions

Not applicable.

Main Outcome Measures

Caregiver strain, depression, anxiety, loneliness, and self-esteem; as well as care recipient community reintegration, a key aspect of TBI/PT rehabilitation.

Results

Family stigma was associated with strain, depression, anxiety, loneliness, lower self-esteem, and less community reintegration. Caregiver stigma-by-association was associated with strain, depression, anxiety, loneliness, and lower self-esteem. Care recipient stigma was associated with caregiver strain, depression, anxiety, loneliness, lower self-esteem, and less community reintegration.

Conclusions

Perceived stigma may be a substantial source of stress for caregivers of U.S. military veterans with TBI/PT, and may contribute to poor outcomes for the health of caregivers and for the community reintegration of the veterans for whom they provide care.  相似文献   

4.

Objectives

To describe the prevalence of cannabis use in an adult sample with spinal cord injury (SCI) or traumatic brain injury (TBI) in Colorado, and to describe the self-reported reasons and side effects of cannabis use in this sample.

Design

Mixed-methods observational study, using focus group data and telephone survey.

Setting

Community.

Participants

Colorado adults who sustained SCI or moderate to severe TBI and received services through Craig Hospital.

Interventions

None.

Main Outcome Measures

Survey.

Results

Focus group participants identified issues that were then included in the survey development. Seventy percent of the 116 participants surveyed reported cannabis use before their injury (67% SCI, 74% TBI) and 48% reported use after their injury (53% SCI, 45% TBI). Overall, the most common reason for use was recreational (67%), followed by reducing stress/anxiety (62.5%) and improving sleep (59%). Among the respondents with SCI, the most common reasons for use were to reduce spasticity (70%), recreation (63%), and to improve sleep (63%). Among those with TBI, reasons endorsed were recreational (72%), reducing stress/anxiety (62%), and improving sleep (55%). Smoking was the most common method of use.

Conclusions

A majority of this sample reported using cannabis before injury, and approximately half reported using cannabis after injury. Both groups reported recreational use, whereas the group with SCI also highly endorsed using cannabis to address chronic medical conditions. Clinicians should be aware of the high prevalence of cannabis use in these populations and the impact such use may have on the individual’s medical management. Further research in this area is needed.  相似文献   

5.

Objective

To test the feasibility and validity of an online version of an established interview designed to determine a lifetime history of traumatic brain injury (TBI).

Design

Cross-sectional.

Setting

General community.

Participants

A volunteer sample of individuals (N= 265) from the general population across the United States.

Interventions

Not applicable.

Main Outcome Measure(s)

Online version of the Ohio State University Traumatic Brain Injury Identification Method, Rivermead Postconcussion Symptoms Questionnaire (RPQ), Patient-Reported Outcomes Measurement Information System Cognitive Concerns Scale.

Results

The measure was completed by 89.4% of the sample with most participants completing the measure in <8 minutes. After controlling for age, sex, psychiatric history, drug or alcohol history, and history of developmental disability, worst TBI severity was significantly associated with scores on the RPQ, F(2,230)=4.56, P=.011, and having a TBI within the past 2 years was associated with higher scores on the cognitive factor subscale of the RPQ, F(1,75)=7.7, P=.007.

Conclusions

The online administration of the Ohio State University Traumatic Brain Injury Identification Method appears to be feasible in the general population. Preliminary validity was demonstrated for the indices of worst TBI severity and time since most recent TBI.  相似文献   

6.

Objective

To prospectively compare the proportion of traumatic brain injuries (TBIs) that would be classified as mild by applying different published definitions of mild TBI to a large prospectively collected dataset, and to examine the variability in the proportions included by various definitions.

Design

Prospective observational study.

Setting

Hospital emergency departments.

Participants

Children (N=11,907) aged 3 to 16 years (mean age, 8.2±3.9y). Of the participants, 3868 (32.5%) were girls, and 7374 (61.9%) of the TBIs were the result of a fall. Median Glasgow Coma Scale score was 15.

Main Outcome Measures

We applied 17 different definitions of mild TBI, identified through a published systematic review, to children aged 3 to 16 years. Adjustments and clarifications were made to some definitions. The number and percentage identified for each definition is presented.

Results

Adjustments had to be made to the 17 definitions to apply to the dataset: none in 7, minor to substantial in 10. The percentage classified as mild TBI across definitions varied from 7.1% (n=841) to 98.7% (n=11,756) and varied by age group.

Conclusions

When applying the 17 definitions of mild TBI to a large prospective multicenter dataset of TBI, there was wide variability in the number of cases classified. Clinicians and researchers need to be aware of this variability when examining literature concerning children with mild TBI.  相似文献   

7.

Objective

To describe and synthesize the literature on adult traumatic brain injury (TBI) family caregiver and dyad intervention. TBI is a common injury that has a significant long-term impact, and is sometimes even characterized as a chronic condition. Informal (ie, unpaid) family caregivers of adults with TBI experience high rates of burnout, depression, fatigue, anxiety, lower subjective well-being, and poorer levels of physical health compared to noncaregivers. This study addresses the critical gap in the understanding of interventions designed to address the impact of TBI on adult patients and their family caregivers.

Data Sources

PubMed and MEDLINE.

Study Selection

Studies selected for review had to be written in English and be quasi-experimental or experimental in design, report on TBI caregivers, survivors with heavy involvement of caregivers, or caregiver dyads, involve moderate and severe TBI, and describe an intervention implemented during some portion of the TBI care continuum.

Data Extraction

The search identified 2171 articles, of which 14 met our criteria for inclusion. Of the identified studies, 10 were randomized clinical trials and 4 were nonrandomized quasi-experimental studies. A secondary search to describe studies that included individuals with other forms of acquired brain injury in addition to TBI resulted in 852 additional titles, of which 5 met our inclusion criteria.

Data Synthesis

Interventions that targeted the caregiver primarily were more likely to provide benefit than those that targeted caregiver/survivor dyad or the survivor only. Many of the studies were limited by poor fidelity, low sample sizes, and high risk for bias based on randomization techniques.

Conclusions

Future studies of TBI caregivers should enroll a more generalizable number of participants and ensure adequate fidelity to properly compare interventions.  相似文献   

8.

Objectives

To evaluate (1) the trajectory of resilience during the first year after a moderate-severe traumatic brain injury (TBI); (2) factors associated with resilience at 3, 6, and 12 months postinjury; and (3) changing relationships over time between resilience and other factors.

Design

Longitudinal analysis of an observational cohort.

Setting

Five inpatient rehabilitation centers.

Participants

Patients with TBI (N=195) enrolled in the resilience module of the TBI Model Systems study with data collected at 3-, 6-, and 12-month follow-up.

Interventions

Not applicable.

Main Outcome Measure

Connor-Davidson Resilience Scale.

Results

Initially, resilience levels appeared to be stable during the first year postinjury. Individual growth curve models were used to examine resilience over time in relation to demographic, psychosocial, and injury characteristics. After adjusting for these characteristics, resilience actually declined over time. Higher levels of resilience were related to nonminority status, absence of preinjury substance abuse, lower anxiety and disability level, and greater life satisfaction.

Conclusions

Resilience is a construct that is relevant to understanding brain injury outcomes and has potential value in planning clinical interventions.  相似文献   

9.

Objective

To determine the extent to which the content of the Quality of Life in Neurological Disorders (Neuro-QoL) covers the International Classification of Functioning, Disability and Health (ICF) Core Sets for multiple sclerosis (MS), stroke, spinal cord injury (SCI), and traumatic brain injury (TBI) using summary linkage indicators.

Design

Content analysis by linking content of the Neuro-QoL to corresponding ICF codes of each Core Set for MS, stroke, SCI, and TBI.

Setting

Three academic centers.

Participants

None.

Interventions

None.

Main Outcome Measures

Four summary linkage indicators proposed by MacDermid et al were estimated to compare the content coverage between Neuro-QoL and the ICF codes of Core Sets for MS, stroke, MS, and TBI.

Results

Neuro-QoL represented 20% to 30% Core Set codes for different conditions in which more codes in Core Sets for MS (29%), stroke (28%), and TBI (28%) were covered than those for SCI in the long-term (20%) and early postacute (19%) contexts. Neuro-QoL represented nearly half of the unique Activity and Participation codes (43%–49%) and less than one third of the unique Body Function codes (12%?32%). It represented fewer Environmental Factors codes (2%?6%) and no Body Structures codes. Absolute linkage indicators found that at least 60% of Neuro-QoL items were linked to Core Set codes (63%?95%), but many items covered the same codes as revealed by unique linkage indicators (7%?13%), suggesting high concept redundancy among items.

Conclusions

The Neuro-QoL links more closely to ICF Core Sets for stroke, MS, and TBI than to those for SCI, and primarily covers activity and participation ICF domains. Other instruments are needed to address concepts not measured by the Neuro-QoL when a comprehensive health assessment is needed.  相似文献   

10.

Objective

To systematically review evidence on the effects of timing and intensity of neurorehabilitation on the functional recovery of patients with moderate to severe traumatic brain injury (TBI) and aggregate the available evidence using meta-analytic methods.

Data Sources

PubMed, Embase, PsycINFO, and Cochrane Database.

Study Selection

Electronic databases were searched for prospective controlled clinical trials assessing the effect of timing or intensity of multidisciplinary neurorehabilitation programs on functional outcome of patients with moderate or severe TBI. A total of 5961 unique records were screened for relevance, of which 58 full-text articles were assessed for eligibility by 2 independent authors. Eleven articles were included for systematic review and meta-analysis.

Data Extraction

Two independent authors performed data extraction and risk of bias analysis using the Cochrane Collaboration tool. Discrepancies between authors were resolved by consensus.

Data Synthesis

Systematic review of a total of 6 randomized controlled trials, 1 quasi-randomized trial, and 4 controlled trials revealed consistent evidence for a beneficial effect of early onset neurorehabilitation in the trauma center and intensive neurorehabilitation in the rehabilitation facility on functional outcome compared with usual care. Meta-analytic quantification revealed a large-sized positive effect for early onset rehabilitation programs (d=1.02; P<.001; 95% confidence interval [CI], 0.56–1.47) and a medium-sized positive effect for intensive neurorehabilitation programs (d=.67; P<.001; 95% CI, .38–.97) compared with usual care. These effects were replicated based solely on studies with a low overall risk of bias.

Conclusions

The available evidence indicates that early onset neurorehabilitation in the trauma center and more intensive neurorehabilitation in the rehabilitation facility promote functional recovery of patients with moderate to severe TBI compared with usual care. These findings support the integration of early onset and more intensive neurorehabilitation in the chain of care for patients with TBI.  相似文献   

11.

Objective

To evaluate the effectiveness of a replicable group treatment program for improving social competence after traumatic brain injury (TBI).

Design

Multicenter randomized controlled trial comparing 2 methods of conducting a social competency skills program, an interactive group format versus a classroom lecture.

Setting

Community and veteran rehabilitation centers.

Participants

Civilian, military, and veteran adults with TBI and social competence difficulties (N=179), at least 6 months postinjury.

Interventions

The experimental intervention consisted of 13 weekly group interactive sessions (1.5h) with structured and facilitated group interactions to improve social competence, and the control consisted of 13 traditional classroom sessions using the same curriculum with brief supplemental individual sessions but without structured group interaction.

Main Outcome Measures

Profile of Pragmatic Impairment in Communication (PPIC), an objective behavioral rating of social communication impairments after TBI. LaTrobe Communication Questionnaire (LCQ), Goal Attainment Scale (GAS), Satisfaction with Life Scale, Posttraumatic Stress Disorder Checklist-C (PCL) civilian version, Brief Symptom Inventory 18 (BSI-18), Scale of Perceived Social Self-Efficacy (PSSE).

Results

Social competence goals (GAS) were achieved and maintained for most participants regardless of treatment method. Significant improvements in the primary outcome (PPIC) and 2 of the secondary outcomes (LCQ and BSI) were seen immediately posttreatment and at 3 months posttreatment in the alternative treatment arm only; however, these improvements were not significantly different between the group interactive structured treatment and alternative treatment arms. Similar trends were observed for PSSE and PCL-C.

Conclusions

Social competence skills improved for persons with TBI in both treatment conditions. The group interactive format was not found to be a superior method of treatment delivery in this study.  相似文献   

12.

Objective

To investigate the relation between posttraumatic stress (PTS) symptom severity and health-related quality of life (HRQoL) after severe traumatic brain injury (TBI).

Design

Longitudinal prospective multicenter, cohort study on severe TBI in Switzerland (2007–2011).

Setting

Hospital, rehabilitation unit, and/or patient’s living facility.

Participants

Patients with severe TBI (N=109) were included in the analyses. Injury severity was determined using the Abbreviated Injury Score of the head region after clinical assessment and initial computed tomography scan.

Interventions

Not applicable.

Main Outcome Measures

HRQoL (Medical Outcomes Study 12-Item Short-Form Health Survey Physical and Mental Component Summaries) and self-reported emotional, cognitive, and interpersonal functioning (Patient Competency Rating Scale for Neurorehabilitation).

Results

Multilevel models for patients >50 and ≤50 years of age revealed significant negative associations between PTS symptom severity and interpersonal functioning (P<.001 and P=.002), respectively. Among patients ≤50 years of age, PTS symptom severity was significantly associated with total functioning (P=.001) and emotional functioning (P<.001). Among all patients, PTS symptom severity was significantly associated with cognitive functioning (P<.001) and mental HRQoL (P=.01).

Conclusions

Findings indicate that PTS symptoms after severe TBI are negatively associated with HRQoL and emotional, cognitive, and interpersonal functioning.  相似文献   

13.

Objectives

To develop, for versions completed by individuals with traumatic brain injury (TBI) and an observer, a more precise metric for the Neuropsychiatric Inventory (NPI) Irritability and Aggression subscales using all behavioral item ratings for use with individuals with TBI and to address the dimensionality of the represented behavioral domains.

Design

Rasch and confirmatory factor analyses of retrospective baseline NPI data from 3 treatment studies.

Setting

Postacute rehabilitation clinic.

Participants

NPI records (N = 525) consisting of observer ratings (n = 287) and self-ratings (n = 238) by participants with complicated mild, moderate, or severe TBI at least 6 months postinjury.

Interventions

Not applicable.

Main Outcome Measures

Frequency and severity ratings from NPI Irritability/Lability and Agitation/Aggression subscales.

Results

Confirmatory factor analyses of both observer and participant ratings showed good fit for either a 1-factor or a 2-factor solution. Consistent with this, the Rasch model also fit the data well with aggression items indicating the more severe end of the construct and irritability items populating the milder end.

Conclusions

Irritability and aggression appear to represent different levels of severity of a single construct. The derived Rasch metric offers a measure of this construct based on responses to all specific items that is appropriate for parametric statistical analysis and may be useful in research and clinical assessments of individuals with TBI.  相似文献   

14.

Objective

To investigate the effects of age and sex on 30-, 60-, and 90-day hospital readmission after acute hospital discharge for individuals with traumatic brain injury (TBI).

Design

Retrospective cohort study.

Setting

Acute hospitals and postacute discharge settings.

Participants

Individuals (N=52,877) with Diagnosis Related Group codes of TBI, who were divided into 4 age groups: 18 to 40, 41 to 65, 66 to 75, and ≥76 years.

Interventions

Not applicable.

Main Outcome Measures

All-cause hospital readmission.

Results

Sex differences in 30-, 60-, and 90-day hospital readmission were found among all age groups (P<.05 for all). The largest sex differences in hospital readmission were in the 2 oldest groups (66–75 and ≥76y). For both sexes, the oldest group (≥76y) had the highest adjusted 90-day readmission risk (eg, 90-d readmission: odds ratio, 2.32 [95% confidence interval, 2.01–2.69] for men; odds ratio, 1.96 [95% confidence interval, 1.59–2.43] for women). Among those readmitted within 90 days, the youngest group (18–40y) had the highest cumulative readmission percentage (35% for both sexes) within the first week of hospital discharge.

Conclusions

Age and sex were significantly associated with hospital readmission during the first 90 days postdischarge in our TBI sample. Specifically, those aged 66 to 75 or ≥76 years had the highest readmission risk over 90 days for both sexes. The findings suggest that clinicians should consider age and sex in discharge planning and for the entire episode of care for the population with TBI.  相似文献   

15.

Objective

To determine the minimal clinically important difference (MCID) for a Rasch measure derived from the Irritability/Lability and Agitation/Aggression subscales of the Neuropsychiatric Inventory (NPI)—the Rasch NPI Irritability and Aggression Scale for Traumatic Brain Injury (NPI-TBI-IA).

Design

Distribution-based statistical methods were applied to retrospective data to determine candidates for the MCID. These candidates were evaluated by anchoring the NPI-TBI-IA to Global Impression of Change (GIC) ratings by participants, significant others, and a supervising physician.

Setting

Postacute rehabilitation outpatient clinic.

Participants

274 cases with observer ratings; 232 cases with self-ratings by participants with moderate-severe TBI at least 6 months postinjury.

Interventions

Not applicable.

Main Outcome Measure

NPI-TBI-IA.

Results

For observer ratings on the NPI-TBI-IA, anchored comparisons found an improvement of 0.5 SD was associated with at least minimal general improvement on GIC by a significant majority (69%–80%); 0.5 SD improvement on participant NPI-TBI-IA self-ratings was also associated with at least minimal improvement on the GIC by a substantial majority (77%–83%). The percentage indicating significant global improvement did not increase markedly on most ratings at higher levels of improvement on the NPI-TBI-IA.

Conclusions

A 0.5 SD improvement on the NPI-TBI-IA indicates the MCID for both observer and participant ratings on this measure.  相似文献   

16.

Objective

To examine the different sources of medications, the most common drug classes filled, and the characteristics associated with Medicare Part D pharmacy use in veterans with spinal cord injury/disorder (SCI/D).

Design

Retrospective, cross-sectional, observational study.

Setting

Outpatient clinics and pharmacies.

Participants

Veterans (N=13,442) with SCI/D using Medicare or Veteran Affairs pharmacy benefits.

Interventions

Not applicable.

Main Outcome Measures

Characteristics and top 10 most common drug classes were examined in veterans who (1) used VA pharmacies only; (2) used both VA and Medicare Part D pharmacies; or (3) used Part D pharmacies only. Chi-square tests and multinomial logistic regression analyses were used to determine associations between various patient variables and source of medications. Patient level frequencies were used to determine the most common drug classes.

Results

A total of 13,442 veterans with SCI/D were analyzed in this study: 11,788 (87.7%) used VA pharmacies only, 1281 (9.5%) used both VA and Part D pharmacies, and 373 (2.8%) used Part D pharmacies only. Veterans older than 50 years were more likely to use Part D pharmacies, whereas those with traumatic injury, or secondary conditions, were less associated with the use of Part D pharmacies. Opioids were the most frequently filled drug class across all groups. Other frequently used drug classes included skeletal muscle relaxants, gastric medications, antidepressants (other category), anticonvulsants, and antilipemics.

Conclusions

Approximately 12% of veterans with SCI/D are receiving medication outside the VA system. Polypharmacy in this population of veterans is relatively high, emphasizing the importance of health information exchange between systems for improved care for this medically complex population.  相似文献   

17.

Objective

To assess the efficacy of activities of daily living (ADL) retraining during posttraumatic amnesia (PTA) compared with ADL retraining commencing after emergence from PTA.

Design

Randomized controlled trial.

Setting

Inpatient rehabilitation center.

Participants

Participants with severe TBI (N=104), admitted to rehabilitation and remaining in PTA for >7 days, were randomized to receive either treatment as usual (TAU) with daily ADL retraining (treatment), or TAU alone (physiotherapy and/or necessary speech therapy) during PTA.

Interventions

ADL retraining was manualized, followed errorless and procedural learning principles, and included individualized goals. Both groups received occupational therapy as usual after PTA.

Main Outcome Measures

Primary outcome was the FIM completed at admission, PTA emergence, discharge, and 2-month follow-up. Secondary outcomes included length of rehabilitation inpatient stay, PTA duration, Agitated Behavior Scale scores, and Community Integration Questionnaire (CIQ) scores at follow-up. Groups did not significantly differ in baseline characteristics.

Results

On the primary outcome, FIM total change, random effects regression revealed a significant interaction of group and time (P<.01). The treatment group had greater improvement in FIM scores from baseline to PTA emergence, which was maintained at discharge, but not at follow-up. Twenty-seven percent more of the treatment group reliably changed on FIM scores at PTA emergence. Group differences in length of stay, PTA duration, agitation, and CIQ scores were not significant; however, TAU trended toward longer length of stay and PTA duration.

Conclusions

Individuals in PTA can benefit from skill retraining.  相似文献   

18.

Objective

To test the effect that indicators of mobility device quality have on participation outcomes in community-dwelling adults with spinal cord injury, traumatic brain injury, and stroke by using structural equation modeling.

Design

Survey, cross-sectional study, and model testing.

Setting

Clinical research space at 2 academic medical centers and 1 free-standing rehabilitation hospital.

Participants

Community-dwelling adults (N=250; mean age, 48±14.3y) with spinal cord injury, traumatic brain injury, and stroke.

Interventions

Not applicable.

Main Outcomes Measures

The Mobility Device Impact Scale, Patient-Reported Outcomes Measurement Information System Social Function (version 2.0) scale, including Ability to Participate in Social Roles and Activities and Satisfaction with Social Roles and Activities, and the 2 Community Participation Indicators' enfranchisement scales. Details about device quality (reparability, reliability, ease of maintenance) and device type were also collected.

Results

Respondents used ambulation aids (30%), manual (34%), and power wheelchairs (30%). Indicators of device quality had a moderating effect on participation outcomes, with 3 device quality variables (repairability, ease of maintenance, device reliability) accounting for 20% of the variance in participation. Wheelchair users reported lower participation enfranchisement than did ambulation aid users.

Conclusions

Mobility device quality plays an important role in participation outcomes. It is critical that people have access to mobility devices and that these devices be reliable.  相似文献   

19.
20.

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 Outcome Measures

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.  相似文献   

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