Nordic hamstring curl without partner
Couch #1
[embedyt] https://www.youtube.com/watch?v=pJSxW9Vi4K8&end=10&width=800&height=450[/embedyt]
Couch #2
[embedyt] https://www.youtube.com/watch?v=pJSxW9Vi4K8&start=121&end=144&width=800&height=450[/embedyt]
Single-leg with kettlebell
[embedyt] https://www.youtube.com/watch?v=pJSxW9Vi4K8&start=109&end=120&width=800&height=450[/embedyt]