The intervention consists of: 1) a prescribed, evidence-based, phased, non-exertive physical activity conditioning activities for lower leg function (CALF) movements that are to be performed daily at home; 2) a low-cost, tri-axial Bluetooth® enabled highly sensitive motion-sensing accelerometer and tracking device (BEAT) worn on the foot during CALF to capture frequency and intensity of foot movements; and 3) a Smartphone that receives foot movement data, provides automated educational/motivational messages, and reports and allows regular communication with the wound care provider on progress.

The intervention consists of: 1) a prescribed, evidence-based, phased, non-exertive physical activity conditioning activities for lower leg function (CALF) movements that are to be performed daily at home; 2) a low-cost, tri-axial Bluetooth® enabled highly sensitive motion-sensing accelerometer and tracking device (BEAT) worn on the foot during CALF to capture frequency and intensity of foot movements; and 3) a Smartphone that receives foot movement data, provides automated educational/motivational messages, and reports. There is not regular communication with the wound care provider on progress.

Individuals with venous leg ulcers will be instructed on physical activity movements for their lower legs to be performed over six weeks while wearing a foot based activity monitor (accelerometer) that will send them motivational messages and progress reports. For those in the FOOTFIT Plus group, individuals will have the option to communicate with their wound care provider via text messages, emails or phone calls.

Measure adherence by recording frequency and intensity of foot/toe movements reported in minutes.

Measure reach, recorded as qualitative documents on a log of how patients learned about the study.

Record on study log the number and types of problems encountered with the study nurses teaching participants to use the foot accelerometer technology, the number and types problems reported by patient, the number and types of recommendations made by the participant regarding the use of the accelerometer, and nurse or provider recommendations for changes to refine the foot accelerometer technology, and the number and types of refinements to the technology that were made.

Record on study logs the the number (frequency) and types of interactions such as phone calls, emails or texts, between the patient and provider regarding FOOTFIT+ including reasons (i.e., exercises, adverse events that are related to, and not related to the use of the accelerometer).

Obtain estimates of variability for short-term functional impacts on pain using the numerical rating scale (NRS) as a single score.

Obtain estimates of variability for short-term functional impacts on foot strength using the dynamometer and reported as pounds per square inch.