Randomized controlled trial of early aerobic exercise following sport-related concussion: Progressive percentage of age-predicted maximal heart rate versus usual care

Evaluating User Experience and Satisfaction in a Concussion Rehabilitation App: Usability Study

Background

Evidence-based guidelines support the use of structured exercise to facilitate concussion recovery. Despite the growing number of mobile health (mHealth) apps aimed at managing concussions, few focus on delivering exercise rehabilitation protocols. Therefore, a mobile app was developed to provide personalized rehabilitation programs based on evidence-based exercise principles designed to cater to individuals recovering from concussions.

Objective

This study aimed to evaluate the usability and user experience of a mobile app designed to deliver an evidence-based rehabilitation program to individuals recovering from concussions.

Methods

A two-week prospective single-arm pilot study was conducted among adults with a physician-diagnosed concussion. Participants engaged in home-based rehabilitation exercises through a mobile app. Usability was assessed using a combination of the mHealth App Usability Questionnaire (MAUQ) and five custom questions evaluating confidence in recommendations, exercise flow, clarity of voice commands, and usability of the exercise report feature. Following the two-week period, participants rated each question on a 7-point Likert scale ranging from "strongly agree" to "strongly disagree".

Results

Twenty-six participants consented and were enrolled in the study, with 23 participants (82%) completing all study components at the end of two weeks. The majority of participants were women, aged 26-38 years, and on average, approximately at three months postconcussion. Responses to both the MAUQ and custom questions were overwhelmingly positive. Overall, seven MAUQ questions received 100% positive responses, with no single question scoring below 83% positive responses. In the "ease of use and satisfaction" category, 100% of users responded positively to questions on ease of learning, usability, interface likeness, and comfort in social settings, while 83%-96% (19-22) of users responded positively to the remaining four questions. In the "system information arrangement" category, 100% (N=23) of users rated screen navigation, function usability, and health care service acceptability positively, with 87%-96% of users approving action acknowledgment, error recovery, and expected functions. Under the "usefulness" category, 96% (n=22) of users found the app beneficial for health and well-being, and 91% (n=21) users felt it effectively managed their health. For the five custom questions, 100% (N=23) users responded positively to voice command clarity, exercise awareness, ease of following exercises, and report understandability, with a single unfavorable response noted for confidence in app recommendations.

Conclusions

The findings of this study indicate that the mobile app is a user-friendly platform for delivering evidence-based exercise rehabilitation to individuals recovering from concussions. Positive user feedback, particularly in the areas of recommendation confidence, ease of exercise flow, and clarity of voice commands, highlights the app's potential to support concussion recovery. Future iterations of the app will aim to improve time efficiency and streamline error recovery processes to further enhance the user experience.

Understanding factors influencing exercise program adherence for youth with persistent post-concussive symptoms (PPCS)

BACKGROUND

A significant portion of youth sustain a concussion every year, with around 30% experiencing persistent post-concussion symptoms (PPCS). Research has shown exercising just below the exertion level that provokes symptoms can lead to more rapid recovery. However, youth often struggle to adhere to exercise recommendations following concussion.

METHODS

We conducted structured qualitative interviews (n = 32) with concussed youth and their parents to examine factors influencing motivation to engage in exercise post-concussion. Questions were framed through the lens of Self-Determination Theory (SDT) and Thematic Analysis was used to code and analyze transcripts.

RESULTS

Four primary factors appeared to motivate youth to exercise after receiving a concussion: 1) social support, 2) accountability, 3) goal setting, and 4) structure. Utilizing the lens of SDT, one could theorize that including social support and accountability helped fulfill the need of relatedness, setting goals helped fulfill the need of autonomy, and providing program structure helped fulfill the need for competence.

CONCLUSIONS

Our results suggest that Self-Determination Theory may be a useful frame for examining exercise adherence post-concussion. Incorporating social support, accountability, goal setting and structure could increase the effectiveness of exercise prescription post-concussion and should be the focus of further study.

Effect of Aerobic Exercise on Symptom Burden and Quality of Life in Adults With Persisting Post-concussive Symptoms: The ACTBI Randomized Controlled Trial

OBJECTIVE

To evaluate a 6-week sub-symptom threshold aerobic exercise protocol (AEP) versus a stretching protocol (SP) on symptom burden and quality of life (QoL) in adults with persisting post-concussive symptoms (PPCS).

DESIGN

The Aerobic exercise for treatment of Chronic symptoms following mild Traumatic Brain Injury (ACTBI) Trial was a randomized controlled trial with 2 groups.

SETTING

Outpatient brain injury, pain, and physiotherapy clinics.

PARTICIPANTS

A total of 210 participants were screened. A consecutive sample of 52 adults with PPCS and exercise intolerance after mild traumatic brain injury were enrolled. No participants withdrew because of the adverse effects of the intervention.

INTERVENTIONS

Participants were randomized to a 6-week AEP (n=27) or 6-week SP (n=25).

MAIN OUTCOME AND MEASURES

The Rivermead Post Concussion Symptoms Questionnaire was the primary outcome. Secondary outcomes included QoL using the QoL After Brain Injury Questionnaire, in addition to measures of mood, anxiety, functional impact of headache, fatigue, dizziness, exercise tolerance, and sleep.

RESULTS

Participants were a mean (SD) of 43.0 (10.9) years old (75% female) and 24.7 (14.0) months post-injury. In per-protocol analysis, between-group difference (AEP vs SP) was not significant for the Rivermead Post Concussion Symptoms Questionnaire, but QoL After Brain Injury Questionnaire between-group difference was significant (mean change=5.024; 95% Cl, 0.057-9.992; P=.047) from baseline to 6 weeks. In the intention-to-treat analysis, between-group changes in primary and secondary outcomes were not significant.

CONCLUSIONS

This trial provides preliminary data to support the prescription of aerobic exercise for adults with PPCS. Despite presenting with exercise intolerance, participants were able to engage in subsymptom threshold exercise with QoL benefits.

Evaluating a 12-week aerobic exercise intervention in adults with persisting post-concussive symptoms

Background

Although guidelines support aerobic exercise in sub-acute mild traumatic brain injury (mTBI), evidence for adults with persisting post-concussive symptoms (PPCS) after mTBI is lacking. The objective was to evaluate the impact of a sub-symptom threshold aerobic exercise intervention on overall symptom burden and quality of life in adults with PPCS.

Methods

This prospective cohort study was nested within the ACTBI Trial (Aerobic Exercise for treatment of Chronic symptoms following mild Traumatic Brain Injury). A total of 50 adults with a diagnosis of mTBI, PPCS and exercise intolerance completed a 12-week sub-symptom threshold aerobic exercise intervention either immediately after enrollment (i-AEP group; n = 27) or following 6-weeks of stretching (d-AEP group; n = 23). Data from all participants (n = 50) were included in the combined AEP (c-AEP) group. The primary outcome was symptom burden on the Rivermead Post Concussion Symptoms Questionnaire (RPQ). Secondary outcomes included measures of quality of life and specific post-concussive symptoms (depressive and anxiety symptoms, functional impact of headache, fatigue, sleep, dizziness and exercise tolerance). Heart rate, blood pressure and heart rate variability were also assessed to understand autonomic function response to intervention.

Results

Participants were a mean (SD) of 42.6 (10.9) years old (74% female) and 25.1 (14.1) months post-mTBI. Following 12-weeks of intervention participants had a significant improvement in symptom burden on the RPQ (i-AEP: mean change = -9.415, p < 0.001; d-AEP: mean change = -3.478, p = 0.034; c-AEP: mean change = -6.446, p < 0.001). Participants also had significant improvement in quality of life (i-AEP: mean change = 9.879, p < 0.001; d-AEP: mean change = 7.994, p < 0.001, c-AEP: mean change = 8.937, p < 0.001), dizziness (i-AEP: mean change = -11.159, p = 0.001; d-AEP: mean change = -6.516, p = 0.019; c-AEP: -8.837, p < 0.001) and exercise tolerance (i-AEP: mean change = 5.987, p < 0.001; d-AEP: mean change = 3.421, p < 0.001; c-AEP: mean change = 4.703, p < 0.001). Headache (mean change = -5.522, p < 0.001) and depressive symptoms (mean change = -3.032, p = 0.001) improved in the i-AEP group. There was no change in measures of autonomic function.

Conclusion

A 12-week aerobic exercise intervention improves overall symptom burden, quality of life and specific symptom domains in adults with PPCS. Clinicians should consider prescription of progressive, individualized, sub-symptom threshold aerobic exercise for adults with PPCS even if presenting with exercise intolerance and months-to-years of symptoms.

Concussions in Soccer

The identification, management, and prevention of concussion across all competitive sports and athletic populations has been a notable topic of research over the last decade. Soccer is no exception, with over a billion participants worldwide. In soccer, 3 distinct subsets of head injuries are often the contributors to concussion: head-to-equipment, head-to-surface, and head-to-player collisions. Recognition of concussion is crucial, and ideally made on the sideline during competitive play. Recently updated screening tools include the SCAT6 and ChildSCAT6, which are widely utilized at all levels of play. Management of concussion is divided into on-field and in clinic management. Initial management includes removal from the field of play. There is increased emphasis on earlier incorporation of exercise prescription as a means to improve recovery in the concussed athlete. While few objective diagnostic tests exist to identify concussion, many are in development, most notably advanced imaging and biomarker modalities.

A treadmill running research protocol to assess dynamic visual acuity and balance for athletes with and without recent concussion history

Athletes interpret dynamic visual scenes quickly and accurately during physical exertion. It is important to understand how increased exertion may impact vision and cognition following sport-related concussion (SRC).Purpose To examine the effect of a treadmill running research protocol on the assessment of dynamic visual acuity (DVA) and balance for athletes with and without recent history of SRC.Methods Varsity athletes following recent SRC (CONC=12) were compared to athletes without SRC (ATHLETE=19). The DVA task presented a Tumbling 'E' target in four possible orientations during random walk (RW) or horizontal (H) motion at a speed of 30°/s. Participants performed DVA trials standing on a force plate (1000Hz) at four time points: 1) pre-exercise (PRE-EX), 2) immediately (POST1), 3) 10-minutes (POST10), and 4) 20-minutes post- exercise (POST20). Performance was calculated as a change in DVA score from PRE-EX and median response time (RT, ms). Balance control was analyzed using the root mean square of centre of pressure displacement (dCOP).Results Both groups maintained DVA scores for both motion types and exhibited immediate exercise-induced benefits on RT. Both groups had similar change in balance control strategy following treadmill exercise.Conclusion Both groups elicited similar exercise-induced benefits on DVA following exercise. A repeated measures assessment following vigorous exercise may provide meaningful insights about visual and neurocognitive functions for athletes returning to sport following concussion.

A Scoping Review on the Use of Non-Invasive Brain Stimulation Techniques for Persistent Post-Concussive Symptoms

BACKGROUND

In the context of managing persistent post-concussive symptoms (PPCS), existing treatments like pharmacotherapy, cognitive behavioral therapy, and physical rehabilitation show only moderate effectiveness. The emergence of neuromodulation techniques in PPCS management has led to debates regarding optimal stimulation parameters and their overall efficacy.

METHODS

this scoping review involved a comprehensive search of PubMed and ScienceDirect databases, focusing on controlled studies examining the therapeutic potential of non-invasive brain stimulation (NIBS) techniques in adults with PPCS.

RESULTS

Among the 940 abstracts screened, only five studies, encompassing 103 patients (12 to 29 per study), met the inclusion criteria. These studies assessed the efficacy of transcranial direct current stimulation (tDCS), or repetitive transcranial magnetic stimulation (rTMS), applied to specific brain regions (i.e., the left dorsolateral pre-frontal cortex (DLPFC) or left motor cortex (M1)) for addressing cognitive and psychological symptoms, headaches, and general PPCSs. The results indicated improvements in cognitive functions with tDCS. In contrast, reductions in headache intensity and depression scores were observed with rTMS, while no significant findings were noted for general symptoms with rTMS.

CONCLUSION

although these pilot studies suggest promise for rTMS and tDCS in PPCS management, further research with larger-scale investigations and standardized protocols is imperative to enhance treatment outcomes for PPCS patients.

Brain changes: aerobic exercise for traumatic brain injury rehabilitation

Introduction

Traumatic Brain Injury (TBI) accounts for millions of hospitalizations and deaths worldwide. Aerobic exercise is an easily implementable, non-pharmacological intervention to treat TBI, however, there are no clear guidelines for how to best implement aerobic exercise treatment for TBI survivors across age and injury severity.

Methods

We conducted a PRISMA-ScR to examine research on exercise interventions following TBI in children, youth and adults, spanning mild to severe TBI. Three electronic databases (PubMed, PsycInfo, and Web of Science) were searched systematically by two authors, using keywords delineated from "Traumatic Brain Injury," "Aerobic Exercise," and "Intervention."

Results

Of the 415 papers originally identified from the search terms, 54 papers met the inclusion criteria and were included in this review. The papers were first grouped by participants' injury severity, and subdivided based on age at intervention, and time since injury where appropriate.

Discussion

Aerobic exercise is a promising intervention for adolescent and adult TBI survivors, regardless of injury severity. However, research examining the benefits of post-injury aerobic exercise for children and older adults is lacking.

Concussion Rehabilitation and the Application of Ten Movement Training Principles

Concussion awareness continues to grow in all aspects of healthcare, including the areas of prevention, acute care, and ongoing rehabilitation. Most of the concussion research to date has focussed on the challenges around screening and diagnosing what can be a complex mix of brain impairments that overlay with additional pre-existing comorbidities. While we expect further progress in concussion diagnosis, progress also continues to be made around proactive rehabilitation, with the emergence of interventions that can enhance the recovery process, maximise function and independence with a return to study, work, and play. Traditionally, optimal multimodal assessments of concussion have treated the physical, cognitive, and psychological domains of brain injury separately, which supports diagnosis, and informs appropriate follow-up care. Due to the complex nature of brain injury, multimodal assessments direct care toward professionals from many different disciplines including medicine, physiotherapy, psychology, neuropsychology, ophthalmology, and exercise physiology. In addition, these professionals may work in different fields such as sports, neurorehabilitation, vestibular, musculoskeletal, community, vocational, and general practice clinical settings. Rehabilitation interventions for concussions employed in practice are also likely to use a blend of theoretical principles from motor control, cognitive, and psychological sciences. This scale of diversity can make information dissemination, collaboration, and innovation challenging. The Ten Movement Training Principles (MTPs) have been proposed as a usable and relevant concept to guide and support clinical reasoning in neurorehabilitation. When applied to concussion rehabilitation, these same 10 principles provide a comprehensive overview of key rehabilitation strategies for current and future practice. Future collaborations can use these training principles to support clinical and research innovations including the rapid rise of technologies in this growing field of rehabilitation practice.