Cumulated injuries in junior female figure skater caused by detraining in COVID-19 lockdown

: As the SARS-CoV-2 virus started its fulminate spread, due to strict epidemiological measures, athletes were transferred to unsupervised online training. This resulted in injury increase occurrence in elite sport. Some of many reasons for this are detraining process linked with reversible decrease in muscle mass and increase in body fat content. We present the unique case of the 13-year-old healthy, junior female figure skater who suffered from multiple injuries associated with unsupervised training and detraining during COVID-19 lockdown. This case reports injuries described in elite athletes’ population, but never reported cumulatively in three months’ time period. Healthy elite athlete with magnetic resonance imaging was diagnosed with a stress fracture of the second and stress reaction of the fourth metatarsal bone, which occurred during online unsupervised training. The same patient also suffered from lumbar discus protrusion on L4-L5 segment and discus bulging sign on L3-L4 and L5-S1 segments, which occurred after lockdown period, in immediate return to sport. Individual rehabilitation program, which included different modalities of physical therapy during which special attention was given to strengthening, stretching, proprioceptive and dynamic neuromuscular stabilization exercises, resulted in safe and pain free return to sport. A multi-faced controlled exercise program should be considered as part of successful rehabilitation program in elite sport. As part of injury prevention program, we suggest that sporting federations in collaboration with medical and sport experts develop and implement different and convenient sport-specific guidelines to prevent a rapid increase of injuries in different sport disciplines.