Core stability is more than just the 6 pack
According to the two main bodies of knowledge when it comes to muscle activation and low back pain, core is just not doing a few situps. Core stability entails proper functioning of your rectus abdominals, your obliques, transverse abdominals, lower back muscles and the fascia around it, as well as a few intrinsic muscles including your multifidus. A good core routine will focus on dynamically activation of those muscles to protect the passive structures in the low back. For more examples, book a free consult here https://www.formfunctionclinic.com/contact.php .