Overtraining Syndrome (OTS) in Three Endurance Athletes and Roads to Recovery

Overtraining syndrome (OTS) is a significant medical condition observed predominantly in endurance athletes and characterised by a decline in performance and disruptions in multiple physiological functions. Given the increasing popularity of endurance training and the complex nature of OTS diagnosis, there is a compelling need for comprehensive case studies. The case series summarises one professional runner, one competitive runner and one recreational runner who were diagnosed with OTS. Key parameters observed include symptoms, diagnostic journey, recovery initiatives and return-to-sport outcomes. All three athletes showed typical OTS manifestations, including impaired performance and multisystem dysfunction (ie, endocrine, nervous, immune and gastrointestinal systems). Following a mandated cessation from training, active recovery strategies were instituted. Two of the three athletes successfully returned to competition. Specific recovery patterns and potential relapse indicators were also identified. The comprehensive examination of the cases underscores the complex nature of OTS diagnosis, its multifaceted symptoms and the critical importance of structured recovery. The case series elucidates the importance of heightened awareness and early intervention to diagnose and manage OTS. In addition, we propose an anecdotal Return to Running Protocol individualised to the athlete's response.