Occupational life-style programme over 12 months and changes of metabolic risk profile, vascular function, and physical fitness in blue-collar workers.
IF 2.9 4区 医学Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Nina Schaller, Katharina Blume, Markus Hornig, Ludger Senker, Bernd Wolfarth, Tibor Schuster, Martin Halle, Katrin Esefeld
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引用次数: 0
Abstract
Purpose: Occupational health programmes have been successfully implemented to improve body composition, physical fitness and cardiovascular risk. However, most programmes have been small and have not included long-term evaluation. Therefore, we evaluated a twelve-month life-style change programme in a German refinery.
Methods: We offered a supervised six-week endurance exercise programme (2 × 90 min/week), starting after a two-day life-style seminar. After the active intervention and a half-day refresher seminar, employees were encouraged to continue exercising over one year on their own, with monthly supervised sessions to maintain adherence. Anthropometry, bicycle ergometry, cardio-metabolic risk profile, inflammatory parameters, and vascular function e.g. endothelial function was studied at baseline, after three and after twelve months.
Results: Of 550 employees, n = 327 (age 40.8 ± 9.7 years, 88% males) participated in the study. Twelve-month intervention was associated with a reduced waist circumference (92.6 ± 12.2 to 90.8 ± 11.7 cm, 95% confidence interval for the mean change (CI): -2.5 to -1.1 cm) and a gain in maximal exercise capacity (202 ± 39.6 to 210 ± 38.9 Watt; 95% CI: + 5.1 to + 10.9 Watt). Metabolic and inflammatory parameters likewise HbA1c and C-reactive protein improved in central tendency at a local 95% level of confidence. Vascular function e.g. Reactive-Hyperaemia-Index revealed a slight reduction, whereas no statistically robust changes in mean Cardio-Ankle-Vascular-Index and mean Ankle-Brachial-Index were observed.
Conclusion: Health education added by a six-week supervised exercise programme was associated with minor long-term twelve-month improvements of body composition as well as physical fitness and a concomitant improvement of inflammatory state. These changes were, however, not clinically relevant and not accompanied by statistically robust improvements of vascular function.
Trial registration: ClinTrialsGov: NCT01919632; date of registration: August 9, 2013; retrospectively registered.
期刊介绍：
Aimed at clinicians and researchers, the Journal of Occupational Medicine and Toxicology is a multi-disciplinary, open access journal which publishes original research on the clinical and scientific aspects of occupational and environmental health.
With high-quality peer review and quick decision times, we welcome submissions on the diagnosis, prevention, management, and scientific analysis of occupational diseases, injuries, and disability. The journal also covers the promotion of health of workers, their families, and communities, and ranges from rehabilitation to tropical medicine and public health aspects.
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