A 2019 study by Ebonie Rio et al. on the Spanish Squat exercise to treat Jumper's Knee (Isometric Exercise to Reduce Pain in Patellar Tendinopathy In-Season: Is It Effective “on the Road”?): [ Ссылка ]
Conclusion from the authors: "This pragmatic study suggests that a portable isometric squat reduced pain in-season for athletes with patellar tendinopathy (PT)."
The Scientific Framework behind Jumper's Knee: [ Ссылка ]
The best Patellar Tendon Training Program in existence: [ Ссылка ]
