The neutral spine principle

Wallden, Matt

doi:10.1016/j.jbmt.2009.07.006

Cited by 38 publications

(22 citation statements)

References 11 publications

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“…A properly functioning spinal system should be capable of managing the instantaneous demand of dy-namic perturbation whilst optimizing muscle force-generating capacity with a relatively low prospect for injury. When an in vivo spinal system is under load and operating outside of neutral zone, instability may exacerbate compressive, shear, and tensile forces (Panjabi, 1992, Wallden, 2009. Therefore, an effective warm-up strate-gy targeting neuromuscular efficiency prior to axial-loaded exercise may offer application for injury-mitigation, stabil-ity, and performance.…”

Section: Discussionmentioning

confidence: 99%

“…as little as 2 degrees of extension and/or flexion) from neutral alignment increase compressive loads and have been shown to negatively affect internal moment and ensuing performance , Schoenfeld, 2010. Instability of this nature may reduce the capacity of the spinal system to disseminate force leading to suboptimal performance and an increased risk for injury (Schoenfeld, 2010, Panjabi, 2003, Panjabi, 1992, Wallden, 2009. A great deal of research has attempted to identify methods to elicit PAP through conditioning activities during warm-up routines (Tillin andBishop, 2009, Wilson et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Hip Abduction Maximal Voluntary Isometric Contraction on Lumbar Motion and Power Output During the Back Squat

Kelly

Gonzalez

Spitz

et al. 2018

IJKSS

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Background: Post-activation potentiation (PAP) is a neuromuscular phenomenon that has been shown to augment muscular force generating attributes as well as neural and sensory recruitment. While PAP has demonstrated to acutely enhance muscular performance during high-intensity activities, the effect of PAP on lumbopelvic kinematics under load remains unknown. Objectives: The purpose of this study was to examine the potential PAP effect of a hip abduction maximal voluntary isometric contraction (MVIC) on lumbar motion and power output during the barbell back squat. Methods: Nine resistance-trained men (22.9±2.3 y; 85.0±13.8 kg; 174.3±5.1 cm) performed a set of 5 repetitions of the barbell back squat using 80% one-repetition maximum with and without a hip abduction MVIC prior to performance. Experimental and control trials were randomized and counterbalanced among participants. MVIC was carried out via manual long-lever hip abduction. During the back squat exercise, lumbar motion analysis was performed using wireless motion-sensor technology, and power output was assessed via an accelerometer. Results: No significant differences were observed between trials for lumbar flexion range of motion (ROM) (p=0.32), lumbar flexion maximum deviation (p=0.32), lumbar lateral flexion ROM (p=0.81), lumbar lateral flexion maximum deviation (p=0.98), lumbar rotation maximum deviation (p=0.70), average peak power (p=0.98), or average mean power output (p=0.99) during the squat protocol. Conclusions: Implementation of a manual long-lever hip abduction MVIC prior to the back squat exercise did not significantly alter lumbar motion or augment power output in resistance trained males.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Hip Abduction Maximal Voluntary Isometric Contraction on Lumbar Motion and Power Output During the Back Squat

Kelly

Gonzalez

Spitz

et al. 2018

IJKSS

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“…The neutral position of a spine in the activity of daily living is recommended for low back patients to decrease the load or eliminate pain in motion [17]. A modification to the STS technique may provide instantaneous relief of pain and may represent the most cost-effective strategy to reduce overall back pain [18].…”

Section: Discussionmentioning

confidence: 99%

The impact of flexion or extension movement transfer pattern on the performance of sit-to-stand task in asymptomatic young subjects

Sipko¹,

Stefanik²,

Glibowski³

et al. 2018

Physiother Quart.

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Introduction. To assess the mode of sit-to-stand (STS) task performed in a habitual manner or with flexion or extension pattern transfer in asymptomatic young subjects. It was hypothesized that different initial movements of the lumbar-pelvic region would modify the performance of the STS task: coordination of STS in time and level of vertical ground reaction forces (VGRF). Methods. A convenience sample of 30 young asymptomatic volunteers, both genders, was recruited. The STS task was performed in a habitual manner or with a flexion or extension pattern. A Kistler platform was used to measure the VGRF and time of STS phases.Results. ANOVAs analysis revealed the main effect in the total time and in maximum VGRF during the STS manoeuvre in three STS tasks (F(2, 58) = 21.67-30.74; p < 0.00001). In the post-hoc analysis, there was no difference in the total time between flexion and extension pattern of STS (p > 0.05), there was no difference between the flexion and extension pattern in minimum VGRF (p > 0.05), but the latter task was the longest in preparation time (p < 0.001). The lowest maximum VGRF was bound with the extension pattern of STS (p < 0.01). Conclusions.The extension or flexion movement pattern modified STS performance and displayed different coordination in time and level of VGRF. Young asymptomatic participants performed the STS task longer with flexion or extension pattern than in the habitual pattern. The extension pattern of STS had the capacity to produce the lowest VGRF. Key words: ground reaction force, coordination, transfer, sit-to-stand, mobility Citation: Sipko T, Stefanik M, Glibowski E, Paluszak A, Kuczyńsk M. The impact of flexion or extension movement transfer pattern on the performance of sit-to-stand task in asymptomatic young subjects.

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“…This is the movement pattern of the fish, heavily retained in the lizard; and is key in efficient bipedal gait. In bipedal gait, lateral flexion is retained and utilized under close motor control; coupled with spinal rotation to drive the pelvis forward, as described in the Spinal Engine theory (Gracovetsky, 1988. Wallden, 2010.…”

Section: Having the Nerve For Rehabilitationmentioning

confidence: 99%

“…However, this view would appear flawed when the Harvard group put shoes onto indigenous runners who had previously never worn shoes and found that, instantaneously, there was a shift and many more were now following the traditionally described heel-strike gait pattern. To add weight to the findings, the researches removed shoes from Westerners who had grown up shod, and found a reciprocal instantaneous shift in pattern toward the forefoot strike gait pattern (for more discussion on this see Lieberman et al, 2010or Wallden, 2010.…”

Section: The Unfolding Understanding Of Gaitmentioning

confidence: 99%