Effects of a lifestyle intervention on sleep and cardiovascular health among male obese long-distance truck and bus drivers

Falling asleep or otherwise being fatigued is an important factor in traffic accidents involving commercial vehicles. Sleep-related disturbances and daytime fatigue may be partly related to obesity, which is common among truck drivers. Obesity and sleep-related disturbances are also associated with little physical activity during leisure and poor dietary habits. Finally, sleep dept, obesity, physical inactivity and poor diet are independent risk factors for cardiovascular diseases, including the metabolic syndrome (MeS).

Date

01/200812/2011. Project ended.

Funding

Academy of Finland

Partners

The UKK Institute for Health Promotion Research; Brain and work Research Centre, Finnish Institute of Occupational Health; Transportation and Logistics team, Finnish Institute of Occupational Health; Vitalmed Research Centre & Sleep Clinic, Helsinki; Agora Center, University of Jyväskylä...?

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We hypothesized that a 12-month health-counselling intervention will lead to changes in a) health behaviour (increased physical activity and consumption of fruit and vegetables, and improved fat quality), b) a moderate reduction in excessive weight (10%) (main outcome), c) improved alertness at work and less day-time fatigue, improved duration and quality of sleep, and d) improved health-related  fitness and decreased proportion of men with MeS.

Volunteer participants (N=140) are obese male commercial truck drivers. They are randomised into two groups, intervention (INT) and control (CON), for a period of 12 months. The INT group is followed for another 12 months. After the 12 months, the CON group receives a shorter intervention (3 months), after which they are followed for 9 months. Assessments for both groups occur at 0, 12 and 24 months from the start.

The intervention consists of individual monthly counselling (6 times face-to-face, 7 times by telephone) throughout the first study year. 

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