Which muscles are typically overactive in the lower crossed syndrome that was described by Prof. Janda?/2022

Which muscles are typically overactive in the lower crossed syndrome that was described by Prof. Janda?

1. HIP FLEXORS/THORACOLUMBAR EXTENSORS
2. HIP EXTENSORS/HIP FLEXORS
3. HIP FLEXORS/THORACOLUMBAR FLEXORS
4. HIP EXTENSORS/THORACOLUMBAR EXTENSORS