Abstract
Kingsley JD, McMillan V, Figueroa A. The effects of 12 weeks of resistance exercise
training on disease severity and autonomic modulation at rest and after acute leg
resistance exercise in women with fibromyalgia.
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.
Key Words
List of Abbreviations:
1RM (1-repetition maximum), 10-RM (10-repetition maximum), ANOVA (analysis of variance), BMI (body mass ind), CI (confidence interval), ECG (electrocardiogram), FIQ (Fibromyalgia Impact Questionnaire), FM (fibromyalgia), HCs (healthy controls), HF (high frequency), HRV (heart rate variability), Ln (natural log), LF (low frequency), RET (resistance exercise training)To read this article in full you will need to make a payment
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Article info
Footnotes
Supported by the American College of Sports Medicine Foundation, the Florida State University dissertation grant, and the College of Human Sciences dissertation grant.
No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit on the authors or on any organization with which the authors are associated.
Identification
Copyright
© 2010 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.
