This study conducts prognostic research to develop, validate, and evaluate the predictive role of sensory profiles in the development of sensory profiles over time. Therefore, a type 3 prognostic model research will be conducted in the low back pain population.

This is a longitudinal multi-centre prospective cohort study design with two measurements.The STROBE statement is used as guideline and the results are reported according to the TRIPOD, and REMARK checklists. The study is a type III prognostic model research study, following the PROGRESS framework to assess the outcome by the development, validation, and evaluation of the impact of incorporating single or multiple prognostic factors, and their prognostic value at baseline in the development of CS over a period of 12 weeks.

Inclusion Criteria:

• patients with acute LBP (< six weeks)
• with or without radiating pain
• aged 18 to 60 years
• a pain-free episode for at least 12 weeks before the onset of their current back pain.
• be able to read and understand the Dutch language.

Exclusion Criteria:

• any specific cause of low back pain

-primary physiotherapy practices in the Netherlands.