Please select the eligibility criteria that correspond to the clinical trial below.
Title: Reducing Sedentary Behavior to Decrease Low Back Pain: Stand Back Study
Brief Summary: This study will test the effects of a sedentary behavior intervention on low back pain in working adults. The behavioral intervention will include the use of a sit-stand desk and a wrist-worn activity prompter that will notify participants when they have been sedentary for too long.


Options:
A: Inclusion Criteria:

* Overweight and moderate obese patients (BMI: 25-34,9 kg/m2).
* Be 6 or more than 6 hours daily sitting.
* Able to walk and stand up from a chair unaided.
* Subjects who can guarantee a year continuity in the study.

Exclusion Criteria:

* Recommended contradictions to advising physical activity to overweight and obese people.
* Have an obesity surgical operation.
B: Inclusion Criteria:

1. Have chronic low back pain defined as a back pain problem that has persisted at least 3 months and has resulted in pain on at least half the days in the past 6 months
2. Oswestry low back pain index \>20% to ensure a moderate level of disability is present, thus minimizing a potential floor effect
3. Currently perform deskwork at least 20 hours per week at a desk compatible with the sit-stand attachment
4. Stable employment (at least 3 months at current job and plan to stay at current job for the next 6 months)
5. Ability to obtain approval to install sit-stand workstation (i.e., from supervisor)
6. Access to internet connection and email to complete assessment surveys

Exclusion Criteria:

1. Unable to provide informed consent
2. Cardiovascular event in the last 6 months (e.g. heart attack, stoke, heart failure, revascularization procedure)
3. Presence of a comorbid condition that would limit ability to reduce sedentary behavior (e.g. currently undergoing treatment for cancer)
4. Back surgery in the past 3 months or planned in the next year
5. Presence of a medical "red flag" for a serious spinal condition (cancer, compression fracture, signs or symptoms of root compression, infection)
6. Inability to tolerate standing for any reason
7. Currently using a sit-stand desk, standing desk, or wearable activity monitor
8. Currently pregnant or planned pregnancy in the next 6 months
9. Blood pressure \>159/100 mmHg
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:

* Adults between 21 and 65 years
* Sedentary (engaging in moderate intensity physical activity for less than 60 minutes per week)
* Working full time (35+ hours/week) at a sedentary desk dependant occupation
* Overweight (Body Mass Index \> 25.0 kg/m2 but less than 40.0 kg/2)
* Apparently healthy as assessed by a health history screening survey
* Devoid of overt complicated or acute cardiovascular, metabolic, respiratory, or neurological diseases
* Free from exercise/physical activity limitations

Exclusion Criteria:

* Adults with significant health problems exacerbated by exercise, such as uncontrolled hypertension, diabetes, orthopedic limitations, etc. will be excluded from the study. Note, with physician approval and adequate control of these health problems, these conditions will not necessarily preclude participation.
* Being unable to exercise

Answer: B