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PHYSICAL ACTIVITY AND QUALITY OF LIFE IN LOW BACK PAIN: A TWOGROUP STRUCTURAL EQUATION MODELING ANALYSIS

Studies have indicated that physical activity (PA) reduces pain and enhances quality of life (QoL) in low
back pain (LBP). No study has investigated the aforementioned factors within the context of the same
theoretical model so far. The aim of this study was to examine the PA and QoL relationship through the intermediary effects of
bodily pain (BP) and physical (PCS) and psychological (MCS) health. Participants were 684 individuals aged 39.16 ± 13.52
years old (M ± SD). In total, 222 participants of the sample reported LBP, whereas 462 participants did not. LBP, PA, BP, PCS, MCS
and QoL were assessed. A two-group structural equation modeling analysis was used. The results didn't support the model
invariance across groups. Within the group with LBP, PA improved QoL through PCS and MCS, whereas in the group without LBP,
PA enhanced QoL through MCS. Longitudinal studies should be carried out for highlighting these associations over time.