Efficacy of Inertial Flywheel vs Heavy Slow Resistance Training Among Athletes With Patellar Tendinopathy

Self-administered questionnaire. Consists of 8 items; 6 are used to evaluate pain levels or disability in daily activities and specific functional tests and 2 provide information regarding ability to play sport. Response options for each item are provided on a numeric rating scale (from 0 to 10), with higher scores indicating lower levels of pain or disability for all items other than 7 and 8, for which options have weighted scores.

Self-reported patient-specific outcome measure assess functional change, primarily in patients presenting with musculoskeletal disorders. Patients are asked to identify up to 3 important activities they are unable to perform or are having difficulty with as a result of their problem. In addition to identifying the activities, patients are asked to rate, on an 11-point scale, the current level of difficulty associated with each activity. Following the intervention, patients are asked again to rate the activities previously identified.

Register patient's belief about the efficacy of treatment. PGIC is a 7 point scale depicting a patient's rating of overall improvement. Patients rate their change as "very much improved," "much improved," "minimally improved," "no change," "minimally worse," "much worse," or "very much worse."

To capture all adverse events and side effects that occurred after exercises protocol. Patients reported any changes or any symptoms. If a question was answered "yes", we asked for further comments.

Patients were asked to choose one of six descriptions (from level 1 = perfect adherence to level 6 = nonadherence) to express exercise treatment at the end of the twelve weeks study period.

A reliable patellar tendon pain provocation test, will be used to assess pain. Pain is rated on an 11-point numeric rating scale, where 0 is no pain and 10 is the worst pain imaginable.

A reliable patellar tendon pain provocation test, will be used to assess pain. Pain is rated on an 11-point numeric rating scale, where 0 is no pain and 10 is the worst pain imaginable.

Counter movement Jump and Triple hop for distance will be used to assess patellar tendinopathy caused functional deficits on the injured site compared with the non-injured site. The distance is measured in centimeters.