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FITLOOP

StrengthIntermediate

Jackknife Sit-Up

Equipment:Body Only
Type:Compound
Force:Pull

Muscles Targeted

Primary

Abdominals, Core

Secondary

Obliques, Hip Flexors

How to Perform

  1. 1

    Lie flat on back, arms extended overhead, legs straight.

  2. 2

    Engage core. Exhale, simultaneously lift straight legs and upper body.

  3. 3

    Reach hands towards toes.

  4. 4

    Body forms 'V' shape.

  5. 5

    Pause briefly.

  6. 6

    Inhale, slowly lower arms/legs back to start.

  7. 7

    Repeat.