All exercises

Band jack knife sit-up

The band jack knife sit-up is an intermediate core exercise that targets the abs using a resistance band. The movement involves lying on your back with the band secured around your feet and holding the other end with your hands. You then perform a sit-up while simultaneously bringing your knees towards your chest, engaging your core throughout the movement.

How to perform: Band jack knife sit-up

At a glance

Area
Waist
Main muscle
Abs
Equipment
Band
Level
Intermediate

Form tips

  • Keep your core engaged throughout the movement.
  • Avoid pulling on your neck with your hands.
  • Control the movement, both on the way up and down.

What to watch out for

  • lower back pain
  • recent abdominal surgery
  • pregnancy

Also known as

Sit-up con banda elastica, banded jackknife sit-up, core exercise with band

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