Lumbar spine region is also reffered to as Lower back.
It’s situated between the thoracic spine (upper back) and the sacrum (lower part of the pelvis).
The lumbar spine is made up of five vertebrae, numbered L1 through L5.

Different regions of the spine
Weakness causes
Specific
- Osteoarthritis
- Inflammatory arthritis
- Osteoporosis
- Herniated Disc
Nonspecific
- Soft tissue injuries
- Stress
- Smoking
- Lack of exercise
- Improper posture Ex: sitting for longer periods with improper posture.
- Overweight
- Sudden increase in load of spine Ex: lifting weights when you are not used to
- Anxiety or depression
Strengthen by
- Lumbar flexion
- Building muscle strength
- Relaxing the stiffness
- Destraining the overstretched