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Effects of an Intervention to Reduce Sitting at Work on Arousal, Fatigue, and Mood Among Sedentary Female Employees:
Emily L Mailey1, Sara K Rosenkranz, Elizabeth Ablah
1Department of Kinesiology, Kansas State University, Manhattan, Kansas (Dr Mailey, Mr Swank); Department of Food, Nutrition, Dietetics and Health, Kansas State University, Manhattan, Kansas (Dr Rosenkranz, Ms Casey); Physical Activity and Nutrition-Clinical Research Consortium, College of Human Ecology, Kansas State University, Manhattan, Kansas (Drs Mailey, Rosenkranz, Ms Casey); and Department of Preventive Medicine and Public Health, University of Kansas School of Medicine-Wichita, Wichita, Kansas (Dr Ablah).
Objective:
The aim of this study was to determine whether individuals who participated in an intervention to reduce sitting at work would report changes in arousal, fatigue, and mood.
Methods:
Inactive females with full-time sedentary occupations (N = 49) were randomly assigned to take short, frequent breaks (SBs) or longer, planned breaks (LBs) from sitting each workday for 8 weeks. At baseline and postintervention, participants completed measures of arousal, fatigue, and mood. Within- and between-group changes were examined.
Results:
SB participants reduced sitting and reported moderate to large improvements in all affective outcomes except calmness (d = -0.44 to -0.82), whereas effect sizes were small for the LB group (d = 0.01 to -0.28). Only changes in negative affect differed between groups (P = 0.045).
Conclusion:
This study suggests that taking short, frequent breaks from sitting may be an effective strategy for improving affective outcomes among sedentary female employees.
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