Hanging Leg Raises

hanging leg raises

What’s up ? This is THE stephane ANDRE ! I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff.

Suspended on a chin-up bar :

  • Inhale and back up your knees as high as possible by approaching your knees to your torso.

  • Exhale at the end of the movement

This exercise works :

  • The iliopsoas, rectus femoris, tensor fasciae latae when you raise your legs.

  • The rectus abdominis and a little less obliques work when you move your knees to your torso.

To target the work on abs, it’s advisable to make small oscillations of thighs without never having the knees below the horizontal.

Attention

Rotations of the torso to the machine are proscribed for people suffering from low back or having already had a herniated disc.

Variant

hanging leg raises variant

By raising your knees on the side alternately to the right and to the left, obliques work more intensely.

Abdominal lumbar balance

It’s necessary to work in a balanced way the abdominal’s muscles and the back’s muscles (erector spinae). A lack of tone of hypertonicity of one of these two muscle groups can create a bad posture, and over time, create pathologies.

Example

Hypertonicity of the lower part of the erector spinae (sacro lumbar mass) with a hypotonicity of the muscles of the abdomen, will create a hyperlordosis with an abdominal ptosis. This postural defect can sometimes (if it is taken in time) be diminished by exercises of reinforcement of the abdominal muscles.

Conversely, hypertonicity of the abdominal muscles with loosening (hypotonicity) of the erectors spinae, especially in the upper part (multifidus spinae, longissimus, iliocostalis), will create a kyphosis (rounding back ) with loss of lumbar vertebral arch. This postural defect can sometimes (if it taken in time) be diminished by exercises of reinforcement of erectors spinae muscles.

Hypertonicity erector spinae muscles lumbar vertebral arch Hypotonicity abdominal ptosis

Kyphosis Hypotonicity erector spinae muscles lumbar vertebral arch Hypertonicity abdomen

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-Steph

How To Do Machine Back Extension

machine back extension

I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff.

Sitting on the machine with your torso bent. The pads placed on your shoulder blades :

  • Inhale and straightens your torso at the maximum

  • Back to the start position by controlling the movement and exhaling.

This exercise works spinal erectors muscle mainly, the sacro-lumbar of the spinal muscle and a little bit longissimus thoracis, iliocostalis lumborum, quadratus lumborum.

This machine is excellent for beginner to gain strength to do back’s exercise more technical later.

machine back extension

What is interesting with this machine, it’s to change the weight and the movement’s amplitude during session.

Example

Do 2 sets of 15 reps with a moderate weight and a complete execution of the amplitude and then do 2 sets of 7 reps with a heavier weight and a reduced amplitude.

Share this article if you think it can help someone you know. Thank you.

-Steph