Final answer:
Rectus abdominis should be the last muscle group to strengthen if someone has acute low back pain. Instead, focus on strengthening transversus abdominis, internal obliques, and multifidi. All the options are correct
Step-by-step explanation:
If someone has acute low back pain, the last muscle group to strengthen should be rectus abdominis. The rectus abdominis is located in the front of the abdomen and helps with flexion of the trunk, which may exacerbate low back pain. Instead, it is recommended to focus on strengthening other muscle groups such as the transversus abdominis, internal obliques, and multifidi, which provide support and stabilization to the lumbar spine.
All the options are correct