Now that you have practiced the the upper longissimus lets get you working on the lower part. Again just like all the ab muscles the back muscles have a lot of different ways it could be worked. Use this lower longissimus to connect to the upper you have been doing.
Parameters strengthening:
- Do 3 X up to 100 reps
- Make sure you tuck your pelvis so as not to arc your back and compress your spine
- Think of pulling your thighs off the ground with your knees locked so to not just use your hamstrings.
Parameters MFS:
- Once set up do 3 X 30 sec
- Factors of Progression: Tucking your chin into your chest and rounding your back, reaching your arms externally rotated toward your feet.