Article

OBJECTIVE: To examine cognitive function in individuals with traumatic brain
injury (TBI) prior to and after participation in an aerobic exercise training
program. DESIGN: Pre-post intervention study. SETTING: Medical research center.
PARTICIPANTS: Volunteer sample of individuals (N=7) (age, 33.3+/-7.9y) with
chronic nonpenetrating TBI (injury severity: 3=mild, 4=moderate; time since most
current injury: 4.0+/-5.5y) who were ambulatory. INTERVENTION: Twelve weeks of
supervised vigorous aerobic exercise training performed 3 times a week for 30
minutes on a treadmill. MAIN OUTCOME MEASURES: Cognitive function was assessed
using the Trail Making Test Part A (TMT-A), Trail Making Test Part B (TMT-B), and
Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Sleep
quality and depression were measured with the Pittsburgh Sleep Quality Index
(PSQI) and Beck Depression Inventory, version 2 (BDI-II). Indices of
cardiorespiratory fitness were used to examine the relation between improvements
in cognitive function and cardiorespiratory fitness.
RESULTS: After training,
improvements in cognitive function were observed with greater scores on the TMT-A
(10.3+/-6.8; P=.007), TMT-B (9.6+/-7.0; P=.011), and RBANS total scale
(13.3+/-9.3; P=.009). No changes were observed in measures of the PSQI and
BDI-II. The magnitude of cognitive improvements was also strongly related to the
gains in cardiorespiratory fitness. CONCLUSIONS: These findings suggest that
vigorous aerobic exercise training may improve specific aspects of cognitive
function in individuals with TBI and cardiorespiratory fitness gains may be a
determinant of these improvements.
CI - Copyright (c) 2015 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS