Introduction Telehealth may be a viable means to deliver physical therapy services across a range of practice settings and health conditions; however, there is limited uptake of telehealth in clinical practice. The purpose of this study is to examine and describe trends, gaps and opportunities in published and emerging evidence regarding the use of real-time videoconferencing to deliver physical therapy services. Methods Four databases and three trial registries were searched using terms for physical therapy and telehealth. Inclusion criteria were primary studies, systematic reviews and published trial registries that had the following features: physical therapy assessment and/or treatment, real-time videoconferencing and English language. Title/abstract, full text screening and data extraction were completed by pairs of independent reviewers. Descriptive statistics stratified by published research and trial registry records were used to summarize study characteristics. Results A total of 100 studies (80 published and 20 trial registries) were included. Australia, Canada and the US have the highest proportion of published and emerging research (63%). The majority of conditions studied were musculoskeletal (42%). Computers were the most common videoconferencing technology used (31%) and only 14% of studies reported using a secure platform. The majority of studies examined health outcomes (64%) and process outcomes (65%), while only 32% reported system outcomes. Discussion Research in the field of telehealth and physical therapy is growing and becoming increasingly diverse with the advancements in technology.
Design of True Random Number Circuit with Controllable Frequency
