Kinematic Perturbation in the Flexion-Extension Axis for Two Lumbar Rigs During a High Impact Jump Task

Portus, Marc R.; Lloyd, David G.; Elliott, Bruce C.; Trama, Neil L.
May 2011
Journal of Applied Biomechanics;May2011, Vol. 27 Issue 2, p137
Academic Journal
The measurement of lumbar spine motion is an important step for injury prevention research during complex and high impact activities, such as cricket fast bowling or javelin throwing. This study examined the performance of two designs of a lumbar rig, previously used in gait research, during a controlled high impact bench jump task. An 8-camera retro-reflective motion analysis system was used to track the lumbar rig. Eleven athletes completed the task wearing the two different lumbar rig designs. Flexion extension data were analyzed using a fast Fourier transformation to assess the signal power of these data during the impact phase of the jump. The lumbar rig featuring an increased and pliable base of support recorded moderately less signal power through the 0-60 Hz spectrum, with statistically less magnitudes at the 0-5 Hz (p = .039), 5-10 Hz (p = .005) and 10-20 Hz (p = .006) frequency bins. A lumbar rig of this design would seem likely to provide less noisy lumbar motion data during high impact tasks.


Related Articles

  • Use of a personalized hybrid biomechanical model to assess change in lumbar spine function with a TDR compared to an intact spine. Knapik, Gregory; Mendel, Ehud; Marras, William // European Spine Journal;Jun2012, Vol. 21, p641 

    Total disc replacements (TDRs) have been employed with increasing frequency in recent years with the intention of restoring natural motion to the spine and reducing adjacent level trauma. Previous assessments of the TDRs have subjectively measured patient satisfaction, evaluated sagittal range...

  • Effects of lumbar artificial disc design on intervertebral mobility: in vivo comparison between mobile-core and fixed-core. Delécrin, Joël; Allain, Jérôme; Beaurain, Jacques; Steib, Jean-Paul; Huppert, Jean; Chataigner, Hervé; Ameil, Marc; Aubourg, Lucie; Nguyen, Jean-Michel // European Spine Journal;Jun2012, Vol. 21, p630 

    Although in theory, the differences in design between fixed-core and mobile-core prostheses should influence motion restoration, in vivo kinematic differences linked with prosthesis design remained unclear. The aim of this study was to investigate the rationale that the mobile-core design seems...

  • Effects of Gender and Foot-Landing Techniques on Lower Extremity Kinematics During Drop-Jump Landings. Cortes, Nelson; Onate, James; Abrantes, João; Gagen, Linda; Dowling, Elizabeth; Van Lunen, Bonnie // Journal of Applied Biomechanics;Nov2007, Vol. 23 Issue 4, p289 

    The purpose of this study was to assess kinematic lower extremity motion patterns (hip flexion, knee flexion, knee valgus, and ankle dorsiflexion) during various foot-landing techniques (self-preferred, forefoot, and rear foot) between genders. 3-D kinematics were collected on 50 (25 male and 25...

  • Interaction Between Thorax, Lumbar, and Pelvis Movements in the Transverse Plane During Gait at Three Velocities. Ya-Ting Yang; Yasuyuki Yoshida; Tibor Hortobágyi; Shuji Suzuki // Journal of Applied Biomechanics;Jun2013, Vol. 29 Issue 3, p261 

    We determined the angular range of motion and the relative timing of displacement in the thorax, lumbar spine, and pelvis in the transverse plane during treadmill walking at three velocities. Nine healthy young females walked on a treadmill for three minutes at 0.40, 0.93, and 1.47 m/s. The...

  • Kinematic analysis of symmetric axial trunk rotation on dominant hip. Sung, Paul S.; Kim, Yoon Hyuk // Journal of Rehabilitation Research & Development;2011, Vol. 48 Issue 8, p1029 

    Axial rotation of the trunk has been reported as a significant risk of low back dysfunction. However, a lack of biomechanical investigation exists that explains how twisting is accomplished with simultaneous asymmetric handling between the hip joints and lumbar spine. We used a three-dimensional...

  • Ankle-Dorsiflexion Range of Motion and Landing Biomechanics. Fong, Chun-Man; Blackburn, J. Troy; Norcross, Marc F.; McGrath, Melanie; Padua, Darin A. // Journal of Athletic Training (National Athletic Trainers' Associ;Jan/Feb2011, Vol. 46 Issue 1, p5 

    Context: A smaller amount of ankle-dorsiflexion displacement during landing is associated with less knee-flexion displacement and greater ground reaction forces, and greater ground reaction forces are associated with greater knee-valgus displacement. Additionally, restricted dorsiflexion range...

  • New method for determining apparent axial center of rotation of lumbar and thoracic spine segments. Samagh, Sanjum P.; Rosen, Charles D.; Otarodifard, Karimdad; Kornswiet, Matthew; Palmer, Gabe; Lee, Thay Q. // Journal of Rehabilitation Research & Development;2011, Vol. 48 Issue 5, p587 

    One main question in spinal kinematics is the determination of the spine's apparent axial center of rotation. Previous research on this topic has yielded contradictory results. The objective of this study was to determine the apparent axial center of rotation for seven lumbar and six thoracic...

  • The Effects of Ankle Restriction on the Multijoint Coordination of Vertical Jumping. Hiroshi Arakawa; Akinori Nagano; Hay, Dean C.; Hiroaki Kanehisa // Journal of Applied Biomechanics;Aug2013, Vol. 29 Issue 4, p468 

    The current study aimed to investigate the effect of ankle restriction on the coordination of vertical jumping and discuss the influence of energy transfer through m. gastrocnemius on the multijoint movement. Eight participants performed two types of vertical jumps: a normal squat jump, and a...

  • Vertical Jumping and Landing Mechanics: Female Athletes and Nonathletes. Didier, Jennifer J.; West, Vanessa A. // International Journal of Athletic Therapy & Training;Nov2011, Vol. 16 Issue 6, p17 

    The article discusses a study of the kinematics and kinetics of female athletes at risk of anterior cruciate ligament (ACL) and nonathletic controls during loading and landing phases of a maximal vertical jump. The low-risk group were identified as dancers and cheerleaders while volleyball and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics