diagnose patients, whether post exertional malaise was specifically
present in patients, illness duration and whether V02 Max testing was
also done allowing for comparison with other studies. Nor does the
abstract note whether patients were using adaptive pacing to stay
within their energy envelope.
J Psychosom Res. 2011 Sep;71(3):129-35. Epub 2011 May 18.
Deviations in daily physical activity patterns in patients with the
chronic fatigue syndrome: A case control study.
Evering RM, T=F6nis TM, Vollenbroek-Hutten MM.
Roessingh Research and Development, Post Box 310, 7500 AH Enschede,
The Netherlands.
Abstract
OBJECTIVES:
Deviations in daily physical activity patterns may play an important
role in the development and maintenance of fatigue in the chronic
fatigue syndrome (CFS). The aim of this study is to gain insight into
the objective daily physical activity pattern of patients with CFS in
comparison with healthy controls. The secondary objective is studying
the awareness in performing physical activities.
METHODS:
The objective daily physical activity pattern was measured with a
tri-axial accelerometer in 35 patients with CFS and in 35 age- and
gender-matched healthy controls. The objective daily physical activity
level and distribution of physical activities at low, medium and high
intensity levels during the day were measured. Moreover, variability
in performing physical activities within and between subjects was
computed. Subjective ratings of self-reported daily physical activity
levels were assessed at a visual analog scale.
RESULTS:
CFS patients were significantly less physically active in the
afternoon and evening, and spent fewer activities at high intensity
levels and more at low intensity levels. Moreover, CFS patients showed
more variability in their own physical activity pattern during the
afternoon. The heterogeneity in the physical activity pattern between
subjects within the CFS and control group did not differ. Finally, CFS
patients were more aware about their daily physical activity level
than healthy controls.
CONCLUSION:
CFS patients showed deviations in the objectively measured daily
physical activity pattern. Future research should elucidate the
relation between impaired balances in daily physical activity patterns
and fatigue severity in CFS.
Copyright =A9 2011 Elsevier Inc. All rights reserved.
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