Isometric upper-body lumbar crunch

Lumbar

Isometric upper-body lumbar crunch

Lying face down.
Place your hands behind your head and perform a lumbar contraction so that your chest lifts off the ground.
Hold this position for a set amount of time.

Sessions

JESS FULL BODY NO MATERIAL

Intermediate

Biceps ∙ Lats ∙ Triceps ∙ Lower Chest ∙ Upper Chest ∙ Abs

Medina Lumbar Reinforcement

Beginner

Lumbar ∙ Glutes ∙ Hamstrings ∙ Rear Deltoid

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