50 patients with acute posteromedial tibial stress fractures were randomized to either receive active capacitively coupled electric stimulation (CCEF) or placebo treatment. This study aimed to evaluate the fracture healing capacity of CCEF. The results indicated that treatment with CCEF stimulation did not result in accelerated healing of tibial stress fractures compared with the placebo treatment. However, electrical stimulation treatment was more effective when there was increased compliance and less weight bearing. Additionally, evidence from this study suggested that treatment with CCEF stimulation for severe stress fractures resulted in an improved time to heal compared to placebo treatment.