Comparative analysis of tensiomyographic and isokinetic assessments of the rectus abdominis and erector spinae in bodybuilding trainees with nonspecific low back pain

This study revealed that the parameters assessed using TMG and isokinetic equipment were lower or indicated greater weakness in the NSLBP group compared to the control group. Tc, Tr, and Td showed negative correlations with PT and WR, whereas Dm and Ts were positively associated. The NSLBP group demonstrated significantly longer Tc, Tr, and Td, along with lower Dm, Ts, PT, and WR values. These findings suggest that TMG variables, which assess muscle function at rest, are associated with the torque parameters measured by isokinetic dynamometry during movement. Bodybuilding trainees with a history of NSLBP exhibit impairments in both static and dynamic muscle function, indicating the need for stability-focused interventions during training.