Please select the eligibility criteria that correspond to the clinical trial below.
Title: Smart Walk: A Physical Activity Program for African American Women
Brief Summary: The purpose of this project is to test an 8-month, culturally relevant, Smartphone-delivered PA program to improve and maintain high physical levels and reduce cardiometabolic disease risk among obese AA women.


Options:
A: Inclusion Criteria:

* BMI 30-45
* Weight stable
* Own a Smartphone and be willing to install our Smartphone app
* Willing to conduct video conference calls with study staff

Exclusion Criteria:

* Enrolled in any formal weight loss program
* Taking anti-obesity medications
* Not taking medications that may cause weight gain
* Unstable medical conditions
* Diabetes requiring insulin supplementation
* Crohn's Disease
* Diagnosis of obstructive sleep apnea requiring intervention (i.e., CPAP)
* Assistive devices for mobility
* Hospitalizations for a psychiatric disorder within the past 5 years
* Cardiovascular disease symptoms while performing moderate intensity exercise
* Pregnancy, trying to get pregnant, or lactating.
* Bulimia or binge eating disorder
* Reports of active suicidal ideation
* Current substance abuse or dependence besides nicotine dependence
B: Inclusion Criteria:

* Self-reported African American
* Insufficiently Active ( 60 mins or less of PA per wk measured by Exercise Vital Sign Questionnaire)
* BMI\>30
* English speaking and reading
* Own non-Kindle Smartphone iOS 7 or above, or Android 2.3 or above

Exclusion Criteria:

* Concurrent participation in another physical activity, nutrition, or weight loss program
* Endorsement of an item on the Physical Activity Readiness Questionnaire (PAR-Q) unless physical note is provided
* Pregnant or plans to become pregnant in next 12 months
* Plans to relocate out of Phoenix area in next 12 months
C: Inclusion Criteria:

* Child must be between 10 and 17 years old
* Child and at least one of their parents must be able to read at the grade 5 level or above
* Parent participant must be the caregiver with whom the child primarily lives
* Families must have a computer or mobile device and internet access at home
* Child participants must be either overweight or obese, as defined by the age and gender specific WHO cut-offs for children and adolescents aged 5 to 19

Exclusion Criteria:

* Diagnosis of any musculoskeletal, cardiovascular, pulmonary, or orthopedic problems or disabilities precluding the participant from being physically active
* Any other physical condition that precludes the participant from being physically active
* Diagnosis of anorexia nervosa or bulimia nervosa
* Diagnosis of Type I diabetes
* Dietary restrictions or special diets that limit a participant's ability to eat a variety of foods
* Simultaneous participation in another physical activity, nutrition, or weight management study/program
* Use of medication, nutritional supplements, or herbal preparations to help lose weight
* Pregnancy
* A history of psychiatric problems or substance abuse which would interfere with adherence to the study protocol
D: Inclusion Criteria:

* age: 50-75y old
* BMI ≥25 and ≤45 kg/m2
* a diagnosis of prediabetes AND/OR fasting glucose 100 mg/dL and/or HbA1c 5.7% OR Type 2 Diabetes diet-controlled and/or treated with metformin AND meeting 2 or more of the following metabolic syndrome criteria:

  * diagnosis of hypertension on stable medication regimen
  * blood pressure \>120/\>80 mmHg
  * A diagnosis of dyslipidemia on stable regimen
  * triglycerides 150 mg/dL
  * HDL cholesterol men \<40 mg/dL and women \<50 mg/dL
  * waist circumference men: \>102 cm (\>40 in); women \>88 cm (\>35 in)
* in possession of a smart phone (iPhone or Android)
* 70% of days with logging adherence (2 or more log entries/day separated by at least 5h)
* Sleep duration 6-h, with habitual self-reported wake up time \>5AM and before 11 AM and average self reported bed time \<2AM
* habitually eat breakfast
* with weight stability within 5% of screening for the last 3 months
* English speaking (the App has not yet been translated)
* must live in the New York City metro area

Exclusion criteria:

* sleep disorder, e.g. known obstructive sleep apnea (OSA) on CPAP, severe OSA with apnea-hypopnea index \>30 events/h, significant daytime symptoms of OSA, periodic limb movements of sleep, narcolepsy, current shift work or in last 6-mo, travel more than 1 time zone during intervention; severe insomnia with score 15 on Insomnia Severity Index
* significant organ system dysfunction/disease: severe pulmonary, kidney or cardiovascular disease; evidence of active illness (e.g., fever)
* history of seizure disorder
* previous bariatric surgery or on weight loss medication
* history of or current significant food intake or psychiatric disorder
* use of dietary supplements and/or medications known to affect sleep, circadian rhythms or metabolic function
* smoking tobacco or using illegal or recreational drugs
* consume excessive alcohol (women: \>14 drinks/wk; men: \>21 drinks/wk)
* anemia (hemoglobin \<10 g/dl and hematocrit \<30%)
* have conditions that render individual unable to complete all testing procedures \[e.g., unable to stay overnight or frequent travel across 1 time zones\]
* extreme early and late chronotypes (\> 2AM bed time and wake up time before 5AM and \> 11AM)
* severe food allergies
* unwilling/unable to provide informed consent

Answer: B