Comparison of stabilization and Flexi-Bar exercises: Effects on the flexion-relaxation ratio, pain, and function in military personnel with chronic low back pain.

BACKGROUND

Chronic low back pain (CLBP) plagues the military ranks, where grueling duties amplify its toll. This study pitted stabilization exercises against flexion-relaxation ratio (FRR)-vibration-fueled and portable-to test their punch against pain, disability, and lumbar muscle dynamics.

METHODS

This was a quasi-experimental study involving fifty soldiers suffering from CLBP over an 8-week period. Surface electromyography was used to monitor the lumbar erector spine during standing-to-flexion cycles, allowing for the calculation of the FRR. Pain levels were measured using the Visual Analog Scale (VAS), while disability was assessed using the Oswestry Disability Index (ODI).

RESULTS

Both regimens slashed VAS (P < 0.001, d = 1.2) and ODI (P < 0.001, d = 1.1), with no between-group edge. The FRR surged in both (P < 0.001, d = 0.9), but the Flexi-Bar outpaced the stabilization (P = 0.03, d = 0.5).

CONCLUSION

Flexi-Bar's vibrational kick may nudge neuromuscular gains over stabilization, offering a lean, mean option for troops battling CLBP.