Modulating Exercise Dosage to Improve Concussion Recovery

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age13-18
SponsorUniversity of Colorado, Denver

About this trial

Aerobic exercise has emerged as an effective treatment to reduce sport-related concussion symptom severity, yet existing work lacks rigor regarding the precise exercise volume and intensity required to elicit therapeutic effects, how exercise can alter concussion-related pathophysiology, and whether exercise can prevent the development of secondary sequelae. Our objective is to examine if a high dose exercise program (higher volume than currently prescribed at an individualized, safe intensity level) initiated within 21 days of concussion results in faster symptom resolution, altered physiological function, or reduced secondary sequalae. Findings from this research will lead to more rigorous and precise rehabilitation guidelines and improved understanding about how exercise affects neurophysiological function among adolescents with concussion.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

13-18 years of age

Post-Concussion Symptom Scale (PCSS) score >10 to ensure participants are not recovered by enrollment

Concussion diagnosis by a sports medicine physician

Disqualifiers

Pre-existing neurological disorders

Exercise contraindications

Concussion <6 months before enrollment (excluding the current injury)

Trial design

Design model

Parallel

Treatments tested in this trial

  • High Dose Exercise

    Behavioral

    The investigators will initially test and randomize adolescents ages 13-18 years old ≤21 days post-concussion to high dose aerobic exercise (\>150 min/week, individualized intensity level) or standard-of-care (symptom limited, self-guided physical activity), and re-test upon symptom resolution and 8-weeks post symptom resolution

Treatment groups

178 Participants
are divided into 2 treatment groups
Group A: High Dose ExerciseExperimental treatment 1 intervention
Group B: Standard-of-careNo intervention 0 interventions

Trial outcomes

Primary outcomes

1

Time from injury to symptom resolution

The PCSS is a standard form that records the presence and severity of 22 concussion symptoms at the time of testing. Participants rate their concussion symptoms from 0-6 where 0 equates to "no symptoms," and 6 to "severe symptoms."

Time frame
From time of injury until defined symptom resolution observed, about 30 days
2

Serum biomarker concentration: GFAP change

Concentrations of GFAP will be simultaneously assayed along with other biomarkers using multi-plex digital array technology, which allows for single molecule immunoarrays while minimizing the amount of sample required

Time frame
Baseline, Visit 2 (scheduled after symptoms resolve, about 35 days post-baseline)
3

Anxiety and depression severity change

Participants will report anxiety using the Hospital Anxiety and Depression Scale (HADS).The HADS addresses questions related to depression and anxiety symptoms. Responses range from 0 to 3, where 3=experiencing symptoms a great deal of the time, on 14 questions. Seven items are specific to depression symptoms, and 7 to anxiety symptoms. For each sub-scale (HADS-anxiety and HADS-depression) scores range from 0 (no symptoms) to 21 (maximum symptom severity).

Time frame
Baseline, Visit 2 (scheduled after symptoms resolve, about 35 days post-baseline)

Secondary outcomes

1

Serum biomarker concentration: IL-6 change

Concentrations of IL-6 will be simultaneously assayed along with other biomarkers using multi-plex digital array technology, which allows for single molecule immunoarrays while minimizing the amount of sample required

Time frame
Baseline, Visit 2 (scheduled after symptoms resolve, about 35 days post-baseline)
2

Serum biomarker concentration: TNF-alpha change

Concentrations of TNF-alpha will be simultaneously assayed along with other biomarkers using multi-plex digital array technology, which allows for single molecule immunoarrays while minimizing the amount of sample required

Time frame
Baseline, Visit 2 (scheduled after symptoms resolve, about 35 days post-baseline)
3

Serum biomarker concentration: IL1-RA change

Concentrations of IL1-RA will be simultaneously assayed along with other biomarkers using multi-plex digital array technology, which allows for single molecule immunoarrays while minimizing the amount of sample required

Time frame
Baseline, Visit 2 (scheduled after symptoms resolve, about 35 days post-baseline)
4

Serum biomarker concentration: VEGF change

Serum biomarkers will be obtained via venipuncture at the initial visit, after symptom resolution, and 8 weeks after symptom resolution.

Time frame
Baseline, Visit 2 (scheduled after symptoms resolve, about 35 days post-baseline)

Other outcomes

Sponsors and contacts

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University of Colorado, Denver

Lead sponsor

Boston Children's Hospital

Collaborator

Spaulding Rehabilitation Hospital

Collaborator

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Collaborator