UULEX-M showed equivalent physiological and symptomatic responses to UULEX.

Men performed better on the UULEX-M test than women.

UULEX-M test may be a more practical alternative to UULEX.

Currently, there is low certainty evidence showing that any exercise is better than standard care for disability in the short and longer terms, however; the effects on pain are more likely at longer term.

Low certainty evidence that manual therapy is better than standard obstetric care but there is conflicting evidence for comparisons with other interventions.

The education provided in this study is no better than standard care.

The Fremantle Back Awareness Questionnaire - Brazilian version (FreBAQ-Br) questionnaire demonstrated acceptable reliability, internal consistency, and construct validity for hypothesis testing.

The FreBAQ-Br score differentiated between individuals with chronic low back pain and those without it.

Structural validity confirmed the unidimensional structure of the 9-item FreBAQ-Br.

The findings endorse the application of FreBAQ-Br as a suitable instrument for assessing back awareness among Brazilian Portuguese speakers.

The smallest detectable change (SDC) for the FreBAQ-Br score is 3.33, suggesting that variations smaller than this cutoff is probably due to measurement error.

Patient and Public Involvement in Research (PPI) is an evolving concept around the world and is a key driver of equity and social justice

PPI in Research ensures that research reflects the needs and values of those it serves.

Proper training on how to use PPI in research should be made mandatory for researchers, patients, and the public.

Low- and middle-income countries, like Brazil, must encourage the implementation of PPI in health-related research studies.