Please select the eligibility criteria that correspond to the clinical trial below.
Title: The Influence of Sit-stand Workstations Upon Total Physical Activity: a 12 Month Randomised Controlled Trial
Brief Summary: The purpose of this study is to examine the contribution of sit-stand workstations to total daily physical activity in a multi-component office-based 12 month intervention.


Options:
A: Inclusion Criteria:

Worksite-level inclusion criteria:

* Size: Small to moderate size worksite (20-60 employees)
* Schedule: \>80% of employees full time
* Occupation: Seated office work, primarily computer- and- telephone-based work, little movement or walking
* Wellness environment: Not currently undergoing a wellness program aimed at increasing activity at work
* Workstations: Willing to have sit-stand workstations installed at a worksite
* Willing to be randomized: Willing to be randomized to either intervention conditions

Member-level inclusion criteria:

* Age: 18 years and older
* Health status: Generally good health and able to safely increase LPA and reduce sitting time
* Employment status: Any sedentary job, sitting most of the say, little standing or walking
* Occupation: Traditional sitting desk, willing to have a sit-stand workstation installed at desk
* Workstation: traditional sitting desk;willing to have a sit-stand workstation installed at desk

Exclusion Criteria:

* contraindication to prolonged standing at work
B: Inclusion Criteria:

* Adults 18 years or older;
* Healthways employees based in Franklin, TN with an email account with the company;
* Provide informed consent and complete eligibility questionnaires

Exclusion Criteria:

* Current or prior use of the intervention Walkadoo
* Presence of a chronic condition that affects walking
* Projected inability to access the internet for 4 consecutive days or longer during the study
* Non-adherence to device wear during baseline
C: Inclusion Criteria:

* Mostly sedentary (sitting ≥ 4 hour) during the workday.
* Age ≥ 18
* Anticipated using a single computer workstation for 20 hours or more per week

Exclusion Criteria:

* Unable to stand for at least two hours per workday (two hours over the whole workday, not consecutively)
* Reported severe musculoskeletal symptoms, specifically lower extremity or lower back pain.
* Diagnosed with or under treatment for diabetes, heart disease, cancer, orthostatic hypertension, varicose vein, autoimmune disease, or other chronic diseases.
* Pregnant women
D: Inclusion Criteria:

* Must be a full-time employee on a fixed term contract for at least 18 months at one of the two worksites involved in the study (Macmillan Cancer Support, Public Health England)
* Must engage in primarily desk-based work
* Must have their own desk (i.e. does not hot desk) Must be primarily office based (i.e. not working from home)
* Must have no plans to leave the organisation for an extended period (e.g. holiday \> 4 weeks or secondment) or finitely before the anticipated study end date (January 2016)

Exclusion Criteria:

* Have engaged in standing-based desk work in the month prior to the start of the study
* Have been advised against standing by a health professional; or be unable to stand
* Work for the Macmillan Support Line

Answer: D