摘要:Jumping testing is an important performance parameter specially for the activities including jumping.In this study the relationship between patellofemoral pain syndrome,which is very frequent among athletes and vertical jumping is presented.Thirteen volunteer male amateur athletes having anterior knee pain complaints participated in the study.In this study,vertical jumping heights have been measured by a device called tiBosco Ergojump,t.It has been shown that in the knee joint suffering from patellofemoral pain syndrome,muscle atrophy and loss of power occur.Before and after rehabilitation,circumferences from above both knees were measured and the Bosco Ergojump device was used for squatt countermovement and rebound jumps for 15 seconds in order to assess jumping performance.In this study,before and after sportive rehabilitation,a statistically significant difference has not been f6und between the perimeter measures of the injured and non-injured legs (p>0.05).In contrast,after sportive rehabilitation,a statistically significant difference has been found between the perimeter measures of the injured and non-injured legs (p<0∙05).After sportive rehabilitation,squat,countermovement and multiple jumpings and jumping heights were statistically higher (p