Please select the eligibility criteria that correspond to the clinical trial below.
Title: The Effects of Short, Frequent Breaks in Sitting Versus Longer, Planned Breaks in Sitting on Sedentary Behavior and Metabolic Health Among Inactive Females Working Sedentary Jobs
Brief Summary: The purpose of this study is to determine whether varying the frequency and length of activity breaks during the workday will differentially impact sedentary behavior and health outcomes. Participants will be randomly assigned to take short, frequent breaks (i.e., 1 minute every half hour) or longer, planned breaks (i.e., two 15-minute walks) from sitting during the workday. They will be instructed to follow the assigned protocols for an 8-week intervention and the effects of their participation on sedentary behavior and a variety of health outcomes will be assessed. The investigators anticipate participants in both intervention arms will demonstrate significant reductions in daily sitting time, bit do not have an a priori hypothesis regarding the relative effectiveness of each approach.


Options:
A: Inclusion Criteria:

* Diagnosed with RA (defined by the American College Rheumatology (ACR) criteria)
* Over the age of 18 years
* Self-reported sitting time for five hours or more per day (measured by Physical Activity Scale, PAS 2.1)
* Physical function score \<2.5 (measured by Health Assessment Questionnaire, HAQ)
* Informed consent
* Understand and speak Danish
* Access to mobile phone.

Exclusion Criteria:

* Severe physical disabilities (HAQ-score \> 2.5) which would prevent them from reducing daily sitting time (e.g. use of wheelchair);
* Pregnancy
* Vigorous physical activity for more than eight hours a week (measured by PAS 2,1).
B: Inclusion Criteria:

1. Work at least 35 hours per week
2. Spend at least 80% of working hours sitting (self-reported)
3. Engage in less than 60 minutes per week of leisure-time exercise (self-reported)
4. Not pregnant or planning to become pregnant in the next 3 months
5. Not currently trying to change weight
6. Speak English
7. Able to attend assessments
8. Willing to wear accelerometer
9. No anticipated significant conflicts during 8-week intervention

Exclusion Criteria:

1. Male
2. Working less than 35 hours per week
3. Spend \>25% of working hours standing or active
4. Engage in more than 60 minutes per week of leisure-time exercise
5. Pregnant
6. Actively dieting or attempting to change weight
C: Inclusion Criteria:

* Female
* Generally healthy (If asthma and/or high blood pressure, may be able to participate with physician consent)
* Sedentary (Less than 60 minutes per week of moderate or vigorous physical activity)
* Latina (self-identified)
* Must be able to read and write Spanish fluently
* 18 - 65 years of age
* Planning on living in the area for the next 12 months
* Daily access to a computer with high speed internet

Exclusion Criteria:

* Pregnant or planning on becoming pregnant
* BMI greater than 45
* Not able to walk continuously for 30 minutes/limited ability to complete daily activity or ability to exercise
* Exercise is against advice of doctor
* Heart disease/treatment
* Heart murmur
* Angina/chest pain or Angina/chest pain with exertion
* Palpitations
* Stroke/Transient Ischemic Attacks
* Peripheral Vascular Disease
* Diabetes I or II
* Chronic Infectious Disease - HIV, Hepatitis
* Chronic liver disease
* Cystic Fibrosis
* Abnormal EKG on last EKG performed
* Emphysema, Chronic bronchitis, Chronic Obstructive Pulmonary Disease
* Seizure in past year
* Surgery in past year on heart, lung, joint, orthopedic surgery
* Surgery pending in next year on lung, joint, orthopedic surgery
* Unusual/concerning shortness of breath
* Asthma (may be able to participate with physician consent)
* High blood pressure/high blood pressure medication (may be able to participate with physician consent)
* Use of beta blockers
* Abnormal Medical Stress Test
* Musculoskeletal problems
* Fainting/dizziness more than 3 times in past year OR interferes with daily activities OR causes loss of balance
* Cancer treatment in past 3 months
* Hospitalized for psychiatric disorder in past 3 years or suicidal
D: Inclusion Criteria:

* be able to read and write English
* own a cell phone with unlimited incoming text messages
* be a student at Western University

Exclusion Criteria:

* be under 18 or over 64

Answer: B