Article

OBJECTIVE: To determine the effects of 12 weeks of resistance exercise training
(RET) on disease severity and autonomic modulation at rest and after acute leg
resistance exercise in women with fibromyalgia (FM) and healthy controls (HCs).
DESIGN: Before-after trial. SETTING: Testing and training occurred in a
university setting. PARTICIPANTS: Women with FM (n=9; mean age +/- SD, 42+/-5y)
and HCs (n=15; mean age, 45+/-5y). INTERVENTION: Both groups underwent testing
before and after 12 weeks of whole-body RET consisting of 3 sets of 8 to 12
repetitions on 5 different exercises. MAIN OUTCOME MEASURES: Disease severity was
assessed using the number of active tender points, myalgic score, and the
Fibromyalgia Impact Questionnaire (FIQ). Heart rate and autonomic modulation
using power spectral analysis of heart rate variability (HRV) were measured at
rest and 20 minutes after 5 sets of leg-press exercise. RESULTS: There was no
group-by-time interaction for any variable. Women with FM and HCs had similar
increases in maximal strength (P<.05) after RET. Number of active tender points,
myalgic score, and FIQ score were decreased (P<.05) after RET in women with FM.
Heart rate and natural log (Ln) high frequency (LnHF) were recovered, whereas Ln
low frequency (LnLF) and LnLF/LnHF ratio were increased (P<.05) 20 minutes after
acute leg resistance exercise. There were no significant effects of RET on HRV at
rest or postexercise. CONCLUSIONS: These findings indicate that cardiovagal
modulation of heart rate recovers early after leg resistance exercise in women
with FM and HCs. It is concluded that RET reduces the severity of FM, but it has
no impact on autonomic modulation of heart rate.
CI - Copyright (c) 2010 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS