THE EFFECTS OF THE PENDL TRAINING ON HIP FLEXIBILITY, BALANCE, BACK STRENGTH AND FUNCTIONAL SIT-TO-STAND POWER IN ADULTS WITH CHRONIC LOW BACK PAIN FOLLOWING AN 8-WEEK TRAINING PROGRAM WHEN COMPARED TO A CONTROL GROUP: AN EXPLORATORY STUDY

Abstract

ABSTRACT Core stability training is one of the most common rehabilitation strategies for improving lumbopelvic hip control and the dynamic stability of the lumbar spine in people with low back pain (LBP). A new device called a PENDL, that allows exercise while suspended, may be helpful in improving strength and flexibility in people with CLBP. PURPOSE: To evaluate a PENDL training program in adults with CLBP by quantifying changes in 1) hip flexion/extension flexibility, 2) functional sit-to-stand peak power, 3) isometric/isotonic back strength and 4) balance. METHODS: Participants with CLBP pain intensity equal to or less than 40% in the Oswestry Low Back Pain Disability Questionnaire were randomized into experimental (n = 4) and control (n = 6) groups. Range of motion (ROM) of the hip was assessed using a sit and reach test and the Imire and Barbuto hip extension (ROM-HE) test. Balance was assessed using a BTrackS system and back strength (BS) using a dynamometer (BS-DYN). The core was assessed using a plank (BS-PLNK) and functional sit-to-stand peak power (FSSPP) measured with a Tendo unit. Experimental group participants completed 10 exercises on the PENDL three times per week for 8 weeks. RESULTS: There were significant increases improvements in BS-DYN (p = .018), BS-PLNK (p < .001), FSSPP (p = .04), and ROM-HF (p = .017). Changes in ROM-HE (p = .047) and balance (p = .77) were not significantly different. CONCLUSION: The PENDL may be a viable modality for improving hip flexibility, back strength and functional sit-to-stand power in people with CLBP.