Evaluation of Early Submaximal Exercise Tolerance in Adolescents with Symptomatic Sport-related Concussion.
Med Sci Sports Exerc
; 52(4): 820-826, 2020 04.
Article
in En
| MEDLINE
| ID: mdl-31688644
ABSTRACT
PURPOSE:
This study aimed to compare cardiorespiratory response to a graded aerobic exercise challenge between adolescents with symptomatic sport-related concussion (SSRC) and healthy control subjects.METHODS:
A quasiexperimental nonrandomized study at a multidisciplinary pediatric concussion program was conducted. Thirty-four adolescents with SSRC (19 males and 15 females) and 40 healthy control subjects (13 males and 27 females) completed the Buffalo Concussion Treadmill Testing (BCTT) until either symptom exacerbation or volitional fatigue. Main outcome measures included heart rate (HR), oxygen consumption (VËO2), carbon dioxide production (VËCO2), and minute ventilation (VËE) at rest and at test termination, and change from rest in variables (ΔHR, ΔVËO2, ΔVËCO2, and ΔVËE) during the first five stages of the BCTT. Main outcomes were analyzed using three-way mixed-model ANOVA, with group status (control vs SSRC) and sex (male vs female) as between-subject factors, and time (BCTT stage) as the within-subject factor.RESULTS:
No group differences in resting HR, systolic and diastolic blood pressure, ΔVËO2, VËCO2, and VËE were observed. During the first five stages of the BCTT, no group differences in ΔVËO2, VËCO2, and VËE were observed; however, SSRC patients demonstrated higher RPE (P < 0.0005) compared with control subjects. No sex-based differences were observed among SSRC patients on measures collected at rest and during early stages of BCTT.CONCLUSIONS:
Although SSRC patients exhibited higher RPE during a graded aerobic exercise challenge, no differences in cardiorespiratory response were observed compared with control subjects exercising at equivalent workloads. Further work is needed to elucidate the physiological mechanisms underlying exercise intolerance after SSRC.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Brain Concussion
/
Exercise Tolerance
/
Youth Sports
Type of study:
Diagnostic_studies
/
Observational_studies
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Prognostic_studies
Limits:
Adolescent
/
Female
/
Humans
/
Male
Language:
En
Journal:
Med Sci Sports Exerc
Year:
2020
Document type:
Article
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA