Context: Sports-related concussions are commonly occurring injuries as a result of sports and recreation that may cause alterations in brain functioning. It is important to be able to evaluate the impact of these injuries on function to manage the injury recovery and ensure recovery. Recent literature suggests the use of objective evaluation strategies in a multifaceted approach to evaluate and manage these injuries. It is important to understand the relationships between the assessments and how best to utilize each assessment. The purpose of this study was to investigate if relationships exist between measures of vestibular function at baseline in assessments that may be used following sports-related concussions. Additionally, a secondary purpose was to determine if self-reported symptoms were related to performance on the assessments. This study aimed to identify if these assessments measured independent functions of the vestibulo–ocular reflex or if some redundancy existed among the assessment strategies. Design: A cross-sectional study design was used in a cohort of collegiate athletes ages 18–24. Methods: Participants completed demographics questionnaires, the Post-Concussion Symptom Scale, Gaze Stabilization Test, and Concussion Balance Test. Spearman rho correlations were used to examine the relationships between the measures. Results: One hundred and thirty-five collegiate athletes (82 males and 53 females) were included, representative of 3 sports (cheerleading, soccer, and football) with a mean age of 19.77 (1.42) years old. There were weak to moderate, significant relationships between measures of Gaze Stabilization Test and Concussion Balance Test errors (r = .20–.31, P = .001–.03). Conclusions: The direction of these relationships indicated that greater Concussion Balance Test errors were associated with greater Gaze Stabilization Test performance. These relationships may be attributed to the difficulty created by the foam conditions and the integration of more complex sensory tasks required to maintain balance during the more difficult conditions.
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Relationships Among Baseline Concussion Balance Test and Gaze Stability Test Scores in Division-I Collegiate Athletes
Carolina P. Quintana, Anne D. Olson, Nicholas R. Heebner, and Matthew C. Hoch
Using Massage to Combat Fear-Avoidance and the Pain Tension Cycle
Emily R. Hunt, Shelby E. Baez, Anne D. Olson, Timothy A. Butterfield, and Esther Dupont-Versteegden
Massage is a common therapeutic modality utilized by clinicians in a variety of settings to help treat injuries, reduce pain, and return function to patients. Massage benefits the patients both psychologically and physiologically, as patients report less pain and anxiety along with better mood and even decreased blood pressure following massage. Additionally, on the cellular level, massage has the ability to modulate the damaging inflammatory process and, in some cases, influence protein synthesis. Although massage has not been linked to a rehabilitation theory to date, this paper will propose how massage may influence fear-avoidance beliefs, or the patient’s inability to cope with pain that then leads to a pain tension cycle. Pain will often result in use avoidance, which creates muscle tension that further exacerbates the pain. Massage can affect the Fear-Avoidance Model because the beneficial effects of massage can break the cycle by either relieving the patient’s pain or eliminating the muscle tension. A modified Fear-Avoidance Model is presented that conceptualizes how pain and fear-avoidance lead to tension and muscle dysfunction. Massage has been incorporated into the model to demonstrate its potential for breaking the pain tension cycle. This model has the potential to be applied in clinical settings and provides an alternate treatment to patients with chronic pain who present with increased levels of fear-avoidance beliefs.
Performance on the Concussion Balance Test Is Indicative of Time to Recovery in Athletes Following Sports-Related Concussion: An Exploratory Analysis
Carolina P. Quintana, Shelly Massingale, Nicholas R. Heebner, Jamie Pardini, Tamara C. Valovich-McLeod, Anne D. Olson, Arnold Stromberg, and Matthew C. Hoch
Objective: Sports-related concussions (SRCs) are commonly occurring injuries among athletic and recreationally active populations. SRCs can result in vestibular dysfunction that should resolve before returning to activity. It has been suggested that vestibular impairment is a factor that may influence recovery time. The objective of this study was to evaluate the effect of vestibular function on recovery following SRC. Design: Retrospective chart review. Setting: Multidisciplinary Concussion Clinic. Intervention: A total of 32 patient charts (21 males, 15.34 [1.47] y, 171.29 [8.44] cm, 68.37 [15.47] kg) from patients diagnosed with SRC presenting to a concussion clinic between August of 2016 and July 2017 with clinician-identified vestibular involvement were included. Main Outcome Measures: Scores on the Post-Concussion Symptom Scale, Dynamic Visual Acuity Test, Gaze Stabilization Test, Concussion Balance Test (COBALT), and other clinical data were used for analysis. Descriptive statistics were calculated for all variables. Pearson correlations were used to identify variables related to time to recovery. Variables were entered into a forward linear regression model. Results: Moderate to good relationships were identified between days to recovery and Dynamic Visual Acuity Test lines lost in the leftward direction (1.17 [0.52]; r = .39, P = .04), COBALT-condition 8 sway velocity (1.20 [0.18]; r = .44, P = .01), and days to successful completion of the COBALT (14.72 [8.35]; r = .63, P < .001). Patients’ predicted time to recover was equal to 14.61 (0.86) (days to successful COBALT). The model was significant (P < .001, R 2 = .30). Conclusion: The single predictor of time to recover was the number of days to successful completion of the COBALT. Thus, the ability to complete the task may be more informative than the performance on the task in predicting recovery time.
