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BMC Public Health. 2012; 12: 625.
Published online Aug 8, 2012. doi:  10.1186/1471-2458-12-625
PMCID: PMC3487739
Weight loss among female health care workers- a 1-year workplace based randomized controlled trial in the FINALE-health study
Jeanette R Christensen,corresponding author1 Kristian Overgaard,1 Isabella G Carneiro,2 Andreas Holtermann,2 and Karen Søgaard3
1Department of Sport Science, Aarhus University, Aarhus, Denmark
2National Research Centre for the Working Environment, Copenhagen, Denmark
3Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
corresponding authorCorresponding author.
Jeanette R Christensen: jrc/at/sport.au.dk; Kristian Overgaard: ko/at/sport.au.dk; Isabella G Carneiro: igc/at/arbejdsmiljoforskning.dk; Andreas Holtermann: aho/at/arbejdsmiljoforskning.dk; Karen Søgaard: ksogaard/at/health.sdu.dk
Received October 28, 2011; Accepted July 11, 2012.
Abstract
Background
Weight management constitutes a substantial problem particularly among groups of low socio-economic status. Interventions at work places may be a solution, but high quality worksite interventions documenting prolonged weight loss are lacking. This paper presents results of an intervention aimed to achieve a 12 months weight loss among overweight health care workers.
Methods
Ninety-eight overweight female health care workers were randomized into an intervention or a reference group. The intervention consisted of diet, physical exercise and cognitive behavioral training during working hours 1 hour/week. The reference group was offered monthly oral presentations. Several anthropometric measures, blood pressure, cardiorespiratory fitness, maximal muscle strength, and musculoskeletal pain were measured before and after the 12-months intervention period. Data were analyzed by intention-to-treat analysis.
Results
The intervention group significantly reduced body weight by 6 kg (p < 0.001), BMI by 2.2 (p < 0.001) and body fat percentage by 2.8 (p < 0.001). There were no statistical reductions in the control group, resulting in significant differences between the two groups over time.
Conclusions
The intervention generated substantial reductions in body weight, BMI and body fat percentage among overweight female health care workers over 12 months. The positive results support the workplace as an efficient arena for weight loss among overweight females.
Trial registration
NCT01015716.
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