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Completed

NCT Number: NCT01484834

Comparison of Interventions to Promote Health in Workers

The goal of this research was to investigate different intervention strategies in the workplace and their impact on quality of life of workers from companies in the city of Londrina, Parana, Brazil.

The interventions were composed by exercise in the workplace and educational interventions.

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Key information

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Universidade Metodista de Piracicaba

Piracicaba, São Paulo, 13400-911, Brazil

About this study

The workplace has special features about human behaviors. Studies (Shepard 1996, Pratt 2008) has shown that workers participate of this kind of health promotion programs for various reasons: One reason is the convenience of doing something without having to look for it; another reason is group support, many workers who share difficulties due to their working demands can find support in each other, so that they could change health behavior. Furthermore there are patterns of formal and informal communication that can contribute to help more people to become healthier making their environment better. Finally, the norms of a corporate behavior can unite the group of workers seeking same objectives.

Additionally the literature has shown that adults increased workload, job insecurity and pressure to perform tasks (Sparks 1997). These facts has been shown that workplace is different from community based interventions and leisure interventions.

The outcomes proposed to study are different from other studies since the interventions focus changes in behaviors. Sedentary behavior has shown to have 23% of deaths from major chronic disease (WHO 2002).

As the populations rises around the world and with the prolonged life expectancies, the number of people with chronic diseases will raise (WHO 2006). By having positive changes in health behavior the costs of public health can be reduced. Studying different types of interventions and testing its efficacy in different places can help the policy makers to create healthier environments.

There are strategies being developed in the workplace, but its efficacy is being challenged. There are some researches that show no evidence to prove the continuity of these interventions and there are evidences proving the opposite, positive changes in clinical outcomes as diabetes, blood pressure and elevated blood cholesterol. In addition some measures as BMI, anthropometric, fitness level have shown good association as prediction of development of chronic disease with low cost (Dishman 2004).

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

The inclusion criteria for participation of these study were never participated of and quality of life and health intervention program at work and had an interest in participating in the study. Included workers ≥ 18years who had to work in the office position, sitting at the computer most of the work shift.

Exclusion criteria

temporary workers and freelancers.

Treatment and study plan

Exercise and Education

Behavioral

Exercise were prescribed three times a week with duration of fifteen minutes for three months.

Educational Intervention were composed by a quality of life computer software and poster with tips on health behaviors

Other names: Worksite interventions, Physical activity at the workplace

Exercise

Behavioral

Exercise were prescribed three times a week with duration of fifteen minutes for three months.

Other names: Worksite interventions, Physical activity at the workplace

Educational intervention

Behavioral

This company received a quality of life software and poster intervention with tips on health lifestyle. The posters were printed in A3 paper and eight of them were put up per month in different parts of the companies (near water fountains, rest places, cafeterias, near the restrooms and change rooms). The used messages, both by the posters and the software were basedon scientific evidence related to quality of life and health

Other names: Worksite interventions, Physical activity at the workplace

Control Company

Other

No intervention was applied for the participants of this group

Primary outcomes

  1. Quality of Life

    Time frame: The participants were followed for 3 months

    The instrument contains 80 questions, of which 67 were structured in 5 points Lickert Scale. QVS-80 has four domains: Health Domain (Health) Physical activity (PA), occupational environment domain (AO) and perception of QoL (QOL). The health domain is composed of 30 questions, and the thirteen initial questions refer to history of the existence of chronic diseases such as hypertension, diabetes, obesity, dyslipidemias, bronchitis, allergic rhinitis and cancer; the remaining questions relate to lifestyle and living habits, such as quality of sleep, smoking and consumption of alcohol. The domain of physical activity consists of 15 questions on physical activity. The Domain workplace consists of 11 questions about the physical activity at work and occupational environment. The Domain perception of QoL consists of 24 questions about personal characteristics, and autonomy. The syntax of QVS-80 put the results in a scale of 0 -100 points (the higher the better).

Secondary outcomes

  1. Physical Activity Level

    Time frame: The participants were followed for 3 months

    The level of physical activity was evaluated by the questionnaire of quality of life. (QVS-80). The physical activity domain is composed of 15 questions considering the ammount of physical activity practiced during leisure time. The instrument is structured in 5 points Lickert Scale. The syntax of QVS-80 put the results in a scale of 0 -100 points (the higher the better).

  2. Occupational Environment

    Time frame: The participants were followed for 3 months

    The occupational environment was assessed by the quality of life questionnaire. (QVS-80). It considers physical aspects like accessibility and psycologic aspects such as stress. The domain consists of 11 questions about occupational environment. The syntax of QVS-80 put the results in a scale of 0 -100 points (the higher the better).

  3. Changes in Disease Prevalence

    Time frame: The participants were followed for 3 months

    the changes in disease prevalence was measured in the same instrument QVS-80. The chronic disease was self-related by the participants.

  4. Pain Perception

    Time frame: The participants were followed for 3 months

    Pain perception were evaluated by the diagram of pain proposed by Corlett in 1995. The part of body which had pain were indicated by the participant. The data were analysed as "yes" or "no" and reported as Odds ratio.

Sponsors and collaborators

Lead sponsor

Universidade Metodista de Piracicaba

Other

Registry information

Official study title

Comparison of Interventions to Promote Health in Workers: A Cluster Randomized Controled Trial

Important dates

Study start
2011
Primary completion
2011
Study completion
2011
First posted
Dec 2, 2011
Registry last updated
Aug 15, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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