TY - JOUR
T1 - Relationships of circadian rhythms and physical activity with objective sleep parameters in Lung cancer patients
AU - Chen, Hui Mei
AU - Wu, Yu Chung
AU - Tsai, Chun Ming
AU - Tzeng, Jann Inn
AU - Lin, Chia Chin
N1 - Publisher Copyright:
© 2015 Wolters Kluwer Health, Inc.
PY - 2015/5/7
Y1 - 2015/5/7
N2 - Lung cancer patients undergo various treatments leading to sleep problems, rest-activity circadian rhythms disruption, and reduced levels of physical activity. It is important to understand the relationships among these variables. Appropriate interventions can possibly be implemented to improve sleep quality in lung cancer patients. Objective: The objective of this study was to examine the relationships of circadian rhythms and physical activity with objective sleep parameters in 106 of Taiwanese lung cancer patients. Methods: This study used a cross-sectional design. The instruments included an actigraph to measure the objective sleep parameters (total sleep time [TST], sleep efficiency, and sleep-onset latency [SOL]), rest-activity circadian rhythms (r24 [24-hour autocorrelation coefficient] and I < O [in-bed less than out-of-bed dichotomy index]), and physical activity frequency (UP activity mean). The daily physical activity amount in minutes was measured by the Bouchard 3-day physical activity record. Results: Patients performing light-intensity physical activity of 295 min/d or greater had better values for the TST, sleep efficiency, SOL, r24, and I G O than those performing less than 295 min/d (all P <.05). Significant predictors of the TST included age (β = j.31), I < O (β =.32), and UP activity mean ( β= j.42). Predictors of the SOL included current treatment (β =.20), I < O (β = j.28), UP activity mean (β =.51), and 24-hour light-activity minutes (β =j.23). Conclusions: Marked circadian rhythms and adequate light-intensity physical activity may improve sleep quality in lung cancer patients. Implications for Practice: Adequate light-intensity physical activity can be an effective intervention to improve sleep quality in lung cancer patients.
AB - Lung cancer patients undergo various treatments leading to sleep problems, rest-activity circadian rhythms disruption, and reduced levels of physical activity. It is important to understand the relationships among these variables. Appropriate interventions can possibly be implemented to improve sleep quality in lung cancer patients. Objective: The objective of this study was to examine the relationships of circadian rhythms and physical activity with objective sleep parameters in 106 of Taiwanese lung cancer patients. Methods: This study used a cross-sectional design. The instruments included an actigraph to measure the objective sleep parameters (total sleep time [TST], sleep efficiency, and sleep-onset latency [SOL]), rest-activity circadian rhythms (r24 [24-hour autocorrelation coefficient] and I < O [in-bed less than out-of-bed dichotomy index]), and physical activity frequency (UP activity mean). The daily physical activity amount in minutes was measured by the Bouchard 3-day physical activity record. Results: Patients performing light-intensity physical activity of 295 min/d or greater had better values for the TST, sleep efficiency, SOL, r24, and I G O than those performing less than 295 min/d (all P <.05). Significant predictors of the TST included age (β = j.31), I < O (β =.32), and UP activity mean ( β= j.42). Predictors of the SOL included current treatment (β =.20), I < O (β = j.28), UP activity mean (β =.51), and 24-hour light-activity minutes (β =j.23). Conclusions: Marked circadian rhythms and adequate light-intensity physical activity may improve sleep quality in lung cancer patients. Implications for Practice: Adequate light-intensity physical activity can be an effective intervention to improve sleep quality in lung cancer patients.
KW - Lung cancer
KW - Objective sleep quality
KW - Physical activity
KW - Rest-activity circadian
KW - rhythms
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UR - http://www.scopus.com/inward/citedby.url?scp=84930011152&partnerID=8YFLogxK
U2 - 10.1097/NCC.0000000000000163
DO - 10.1097/NCC.0000000000000163
M3 - Article
C2 - 24945266
AN - SCOPUS:84930011152
SN - 0162-220X
VL - 38
SP - 215
EP - 223
JO - Cancer Nursing
JF - Cancer Nursing
IS - 3
ER -