Phone-based program aims to get seniors moving and reduce arthritis pain

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Aged 65+ years * Body mass index of 30-45 kg/m2 or \>45 kg/m2 with physician's approval * No loss or gain of more than 5% body mass in previous 6 months * Presence of knee or hip osteoarthritis as ascertained via the Roux questionnaire * Independently living * Low active (i.e., not participating in regular resistance training and/or \>20 mins/day of aerobic exercise on more than 2 days/week in past 3 months as ascertained via a modified CHAMPS questionnaire) * Have no contraindication for safe and optimal participation in exercise based on EASY screening (pertaining to chest pain and discomfort during physical activity, dizziness or light headedness, or frequent falls and use of assistive devices) * Not currently using a weight loss medication (medications for diabetes management are permitted if weight stable) * Approved for participation by medical director * Willing to provide informed consent and agree to all study procedures and assessments. Exclusion Criteria: * Reside in skilled nursing facility, rehab or assisted living environment * History of pharmacologic treatment for a psychiatric disorder other than depression/anxiety within past year * Current untreated and/or unstable clinical depression or anxiety (Patient Health Questionnaire (PHQ-9) \>15) * Hospitalization for psychiatric event within past year prior to screening * History of mild cognitive impairment or dementia * Cognitive impairment (\<32) on Modified Telephone Interview for Cognitive Status survey (TICS-M) * Hearing or visual impairment that would preclude use of the videoconferencing software * Severe arthritis or other musculoskeletal disorder that is a contraindication for safe walking * Presently undergoing treatment for orthopedic fracture * Currently using a weight loss medication (medications for diabetes management are permitted if weight stable) * Contraindication based on EASY screening (pertaining to chest pain and discomfort during physical activity, dizziness or light headedness, or frequent falls and use of assistive devices) without physician approval * Joint replacement or other orthopedic surgery in past 6 months * Joint replacement or other orthopedic surgery planned in next 18 months * Have a diagnosis of uncontrolled hypertension; current or recent past (within 1 year) severe symptomatic heart disease, uncontrolled angina, stroke, chronic respiratory disease other than asthma or COPD, any disease requiring oxygen use, neurological or hematological disease; cancer requiring current treatment, except non-melanoma skin cancers; kidney failure requiring dialysis; have a Katz ADL disability; or engage in heavy alcohol use \>14 drinks/week. * Current participation in other research study with a prospective intervention * Unable/unwilling to commit to study protocol, including random assignment and use of technology tools * Unable/unwilling to attend three virtual testing appointments