Ref physiology and efficiency. Agree with all you said Sid BUT you don't address the real key point. At full draw and during expansion the lever mechanical advantages you had in the first 1/2 of the draw have virtually gone. A fully bent elbow has little ability to move the string and more effort is required to just hold the weight already reached, the only main movement left is scapular rotation ..BUT you have already used most of this from 1/2 to full draw so again little room for movement and the rhomboids, lats and scaps are already near fully contracted so have little more to give except by contracting even harder than they did early on in the draw cycle. As you say expansion is longer lasting so more fatiguing BUT it is most fatiguing because you are at the most biomechanically INEFFICIENT stage of the process. This is why I shoot CV5 and would look at a CV7 and am considering the CV9 . After 200 arrows it sure makes a hell of a difference. Apply your knowledge of engineering to the human frame and you will see why the last mm are WAY more difficult than the first 500mm. Interesting video .. thanks keep up the good work at Border !
My difficulty with the Olympic recurve draw is this: pulling back to anchor I utilize my back muscles. Coming thru the clicker, release and follow thru I strive to increase back tension until I reach the final release hand position. However using an Astra Shot Trainer with an arrow, often I lose back tension upon release. I guess more practice is needed.
Great video, some thoughs that have not been discussed before, maybe not even realized!
Muchas gracias Sid por mostrar temas tan reales e importantes 🙏👍
Excellent!
Ref physiology and efficiency. Agree with all you said Sid BUT you don't address the real key point. At full draw and during expansion the lever mechanical advantages you had in the first 1/2 of the draw have virtually gone. A fully bent elbow has little ability to move the string and more effort is required to just hold the weight already reached, the only main movement left is scapular rotation ..BUT you have already used most of this from 1/2 to full draw so again little room for movement and the rhomboids, lats and scaps are already near fully contracted so have little more to give except by contracting even harder than they did early on in the draw cycle. As you say expansion is longer lasting so more fatiguing BUT it is most fatiguing because you are at the most biomechanically INEFFICIENT stage of the process. This is why I shoot CV5 and would look at a CV7 and am considering the CV9 . After 200 arrows it sure makes a hell of a difference. Apply your knowledge of engineering to the human frame and you will see why the last mm are WAY more difficult than the first 500mm. Interesting video .. thanks keep up the good work at Border !
My difficulty with the Olympic recurve draw is this: pulling back to anchor I utilize my back muscles. Coming thru the clicker, release and follow thru I strive to increase back tension until I reach the final release hand position. However using an Astra Shot Trainer with an arrow, often I lose back tension upon release. I guess more practice is needed.