The Jackknife July 1, 2016 The Jackknife Alisa Wyatt Observe & Learn | Exercise Library Watch the preview Log in or subscribe now to get full access to this video. Username Password Remember Me Forgot Password Find out how to succeed at the Jackknife with Alisa's quick demo. Share this class: Other classes you might like The Teaser Alisa Wyatt 4:32 | Observe & Learn The Jackknife Alisa Wyatt 4:07 | Observe & Learn Pilates Hacks: Shoulder Bridge Prep Alycea Ungaro 3:13 | Observe & Learn What Others Are Saying 2 Comments Geovannal 2 years ago Log in to reply. awesome…. thanks for all little details robertapilates 4 years ago Log in to reply. Nice! Leave a reply Click here to cancel the replyYou must be logged in to post a comment. Don't subscribe All Replies to my comments Notify me of followup comments via e-mail. You can also subscribe without commenting.