This is a pilot study to assess the feasibility of using treadmill desks (Workstations) within a Louisiana office workplace and to determine the effects of walking while working in overweight or obese, sedentary individuals.

Eligible participants will be randomized by chance to the WorkStation Intervention Group or to a Usual Working Condition Group.

The WorkStation Intervention Group will be asked to walk for up to 1.5 hours per day during the work week of Monday through Friday on the treadmill. Participants will complete two sessions per day for up to 45 minutes per session, tracking time and speed.

Usual Working Condition Group will be asked to continue working in usual environment and accustomed manner.

Regardless of which group the participants are assigned to, the participants will be asked to complete baseline and follow up assessment visits. Months 3 and 6 for approximately 1 hour for Body measurements (height, weight and waist circumference), body fat percent, gait speed, questionnaires, and accelerometry.

Inclusion Criteria:

• Males or females
• BMI ≥ 25 kg/m2
• Willing to give informed consent
• Willing to accept randomization to group assignment and willing to follow the protocol for the group to which they have been assigned
• Willing to maintain fulltime employment at the company for the next 6 months
• Willing to receive frequent contacts and communication from study staff over the next 6 months

Exclusion Criteria:

• Current participation in other Pennington Biomedical research studies
• BMI < 25 kg/m2
• Type 1 diabetes
• Average step count of ≥ 7,500 steps/day
• Self-reporting exercising > 20 minutes on 3 or more days/wk, within the past 6 months
• Unable to walk 45 minutes continuously without taking a rest
• Unable to walk without the use of an assistive device, such as a cane or walker
• Have had a cardiovascular event (stroke or heart attack) in the past 6 months
• Have a pacemaker or any other internal electrical medical device
• Have been diagnosed with Schizophrenia or bipolar disorder
• Have any condition that would limit participation in a physical activity program
• Women who are pregnant, have been pregnant in the last 6 months, or are breastfeeding
• Actively participating in a weight loss program
• Plan to move out of the study area within the next 6 months or plan to be away from work for more than 4 weeks in the next 6 months
• Have another member of household participating in the study
• Have any condition, which, in the opinion of the investigator would impede competence or compliance or possibly hinder completion of the study