Knee instability has been the focus of a large number of studies over the last decade; however, a high incidence rate still exists. The aim of this thesis is to better understand knee joint stability assessment and enhancement of knee function through rehabilitation strategies. A mixed methods approach was used, incorporating both a systematic review of the literature and two experimental studies. Chapter 3 presents evidence that there is no consensus in the literature on a single technique to detect knee instability and provide return-to-play criteria. Chapter 4 demonstrates that the response rate of the anterior cruciate ligament-hamstring reflex is too low for it to be reliably used in a clinical setting, and thus it has limited value in assessing the return of neuromuscular function following knee injuries. Chapter 5 shows that peripheral electrical and magnetic stimulation can be used as an adjunct to resistance training. Overall, the research reported in this thesis provides further evidence that knee stability assessment depends on multiple factors rather than a single measure. In addition, peripheral stimulation may be efficacious to enhancing knee function and a guide to return-to-play following injuries. This thesis highlights important points for future studies on knee stability assessment and rehabilitation; the necessity of a sensorimotor assessment of knee stability and the promising role of peripheral stimulation in knee rehabilitation
