-
Support Care Cancer · Jan 2010
Randomized Controlled TrialPatterns of circadian activity rhythms and their relationships with fatigue and anxiety/depression in women treated with breast cancer adjuvant chemotherapy.
- Ann M Berger, Kimberly Wielgus, Melody Hertzog, Patricia Fischer, and Lynne Farr.
- College of Nursing, University of Nebraska Medical Center, 985330 Nebraska Medical Center, Omaha, NE 68198-5330, USA. aberger@unmc.edu
- Support Care Cancer. 2010 Jan 1;18(1):105-14.
PurposeThe purpose of this study was to examine patterns of circadian activity rhythms and their relationship with fatigue, anxiety/depression, and demographic/medical variables in women receiving breast cancer adjuvant therapy treatments (Tx) at three times within a randomized clinical trial (RCT) designed to improve sleep and modify fatigue.MethodsA RCT enrolled 219 women with stage I-IIIA breast cancer who were randomized 2 days prior to starting chemotherapy to a behavioral therapy sleep intervention or healthy eating control group. All cases with available data (n = 190) were included in a descriptive, correlational, repeated measures analysis. Activity data were collected continuously by wrist actigraphy for 7 days at three times: the start (Tx 1), continuation (Tx 3), and recovery (30 days after last Tx) of chemotherapy. Circadian activity rhythm parameters were generated using Action4 software (Ambulatory Monitoring, Inc.). Measures collected simultaneously included Piper Fatigue Scale, Hospital Anxiety and Depression Scale, and demographic/medical variables.ResultsCircadian activity rhythm parameters at three times in both groups were disrupted compared to healthy adults, but similar to values of cancer patients. Significant changes in mesor, amplitude, peak activity, and 24 h autocorrelation values were found over time in both groups. The intervention group's amplitude and circadian quotient values were significantly more robust. More robust activity rhythms were associated with lower fatigue, depressive symptoms, body mass index, and higher performance status in both groups.ConclusionsDisrupted patterns of circadian activity rhythms were prevalent and associated with distressing fatigue and depressive symptoms during chemotherapy and at recovery. The intervention resulted in more robust rhythms.
Notes
Knowledge, pearl, summary or comment to share?You can also include formatting, links, images and footnotes in your notes
- Simple formatting can be added to notes, such as
*italics*
,_underline_
or**bold**
. - Superscript can be denoted by
<sup>text</sup>
and subscript<sub>text</sub>
. - Numbered or bulleted lists can be created using either numbered lines
1. 2. 3.
, hyphens-
or asterisks*
. - Links can be included with:
[my link to pubmed](http://pubmed.com)
- Images can be included with:
![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
- For footnotes use
[^1](This is a footnote.)
inline. - Or use an inline reference
[^1]
to refer to a longer footnote elseweher in the document[^1]: This is a long footnote.
.