Effects of Volitional Spine Stabilization and Lower Extremity Fatigue on Trunk Control During Landing in Individuals With Recurrent Low Back Pain

Abstract

Volitional preemptive abdominal contraction decreases some of the detrimental effects of fatigue on landing biomechanics and thus may reduce spine injury risk in individuals with recurrent LBP.

Volitional Spine Stabilization During a Drop Vertical Jump From Different Landing Heights: Implications for Anterior Cruciate Ligament Injury

“…21,22 A commonly used VPAC strategy is the abdominal-bracing maneuver (ABM), which produces a global trunk-muscle contraction. 21,23 This VPAC strategy may alter lower extremity neuromuscular control and improve pelvic stability by affecting hip-abductor and external-rotator control, thereby affecting dynamic knee valgus and pelvic stability.…”

“…21,22 A commonly used VPAC strategy is the abdominal-bracing maneuver (ABM), which produces a global trunk-muscle contraction. 21,23 This VPAC strategy may alter lower extremity neuromuscular control and improve pelvic stability by affecting hip-abductor and external-rotator control, thereby affecting dynamic knee valgus and pelvic stability. 24,25 The role of trunk-muscle activation in modifying pelvic responses and influencing lower extremity control has not been fully examined, but preliminary evidence has suggested that trunk stabilization may improve lower extremity control.…”

Clinical Gait Analysis on a Patient Undergoing Surgical Correction of Kyphosis from Severe Ankylosing Spondylitis

“…Marker coordinate data were smoothed using a fourth order no-phase-shift low pass Butterworth digital filter (6 Hz cutoff ) and used to calculate joint angle time series data for the hip, pelvis, spine segments and head. 8 The EMG data were band-pass filtered between 20 and 450 Hz with a fourth order nophase-shift Butterworth band pass digital filter. The EMG timing data were presented as percentage of gait cycle.…”

“…9 Objective motor performance measures, especially gait analysis, could improve evaluation of spine disorder surgeries. [3][4][5][6]8,10 Patients with AS were found to have an altered gait pattern. Zebouni et al 2 compared the gait pattern of patients with ankylosing spondylitis to healthy controls.…”

“…2 Clinical gait analysis is the process by which quantitative information is collected to aid in understanding the etiology of gait abnormalities and in treatment decision-making. [3][4][5][6][7][8] This process is facilitated through the use of technology such as specialized, computer-interfaced video cameras to measure patient motion, electrodes placed on the skin surface to appreciate muscle activity, and force platforms imbedded in a walkway to monitor the forces and torques produced between the ambulatory patient and the ground. 9 Objective motor performance measures, especially gait analysis, could improve evaluation of spine disorder surgeries.…”