Impaired Postural Control of the Lumbar Spine Is Associated With Delayed Muscle Response Times in Patients With Chronic Idiopathic Low Back Pain

Radebold, Andrea; Cholewicki, Jacek; Polzhofer, Gert K; Greene, Hunter S.

doi:10.1097/00007632-200104010-00004

Cited by 503 publications

(404 citation statements)

References 29 publications

Supporting

Mentioning

336

Contrasting

Unclassified

Order By: Relevance

“…short-term and long-term stability exponents. Only the short term exponent, H S , has been shown to discriminate between subject groups with and without low-back pain (Radebold et al, 2001). Therefore, only the short-term exponent was used in the present analyses.…”

Section: Discussionmentioning

confidence: 99%

“…However, empirical assessments of stabilizing neuromuscular control of the torso have only recently become available. Radebold et al (2001) had patients with low-back pain maintain seated balance on a wobbly chair by means of torso movement. Stability was quantified by summary statistics of movement variability and by nonlinear time-series analyses of movement response recorded during the task (Cholewicki et al 2000).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Process stationarity and reliability of trunk postural stability

Lee

Granata

2008

Clinical Biomechanics

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Process stationarity and reliability of trunk postural stability

Lee

Granata

2008

Clinical Biomechanics

View full text Add to dashboard Cite

show abstract

“…Three general aspects of altered muscle recruitment patterns in people with back pain have been investigated: (1) altered muscle activation patterns, especially coactivation, in a static task such as pulling against a fixed object or slow lifting [1,3,19,20,28], (2) altered muscle reflex latency times in response to a sudden perturbation [26] or dropped weight [18,32], quick release of trunk loading [27], or moving support platform [10], (3) altered muscle activation pattern in anticipation of an unexpected or voluntary perturbation [14,25].…”

Section: Introductionmentioning

confidence: 99%

Trunk muscular activation patterns and responses to transient force perturbation in persons with self-reported low back pain

2005

View full text Add to dashboard Cite

Trunk stability requires muscle stiffness associated with appropriate timing and magnitude of activation of muscles. Abnormality of muscle function has been implicated as possible cause or consequence of back pain. This experimental study compared trunk muscle activation and responses to transient force perturbations in persons with and without self-reported history of low back pain. The objective was to determine whether or not history of back pain was associated with (1) altered anticipatory preactivation of trunk muscles or altered likelihood of muscular response to a transient force perturbation and (2) altered muscle activation patterns during a ramped effort. Twenty-one subjects who reported having back pain (LBP group) and twenty-three reporting no recent back pain (NLBP group) were tested while each subject stood in an apparatus with the pelvis immobilized. They performed 'ramped-effort' tests (to a voluntary maximum effort), and force perturbation tests. Resistance was provided by a horizontal cable from the thorax to one of five anchorage points on a wall track to the subject's right at angles of 0°, 45°, 90°, 135°and 180°to the forward direction. In the perturbation tests, subjects first pulled against the cable to generate an effort nominally 15% or 30% of their maximum extension effort. The effort and the EMG activity of five right/left pairs of trunk muscles were recorded, and muscle responses were detected. In the ramped-effort tests the gradient of the EMG-effort relationship provided a measure of each muscle's activation. On average, the LBP group subjects activated their dorsal muscles more than the NLBP group subjects in a maximum effort task when the EMG values were normalized for the maximum EMG, but this finding may have resulted from lesser maximum effort generated by LBP subjects. Greater muscle preactivation was recorded in the LBP group than the NLBP group just prior to the perturbation. The likelihood of muscle responses to perturbations was not significantly different between the two groups. The findings were consistent with the hypothesis that LBP subjects employed muscle activation in a quasistatic task and preactivation prior to a perturbation in an attempt to stiffen and stabilize the trunk. However, interpretation of the findings was complicated by the fact that LBP subjects generated lesser efforts, and it was not known whether this resulted from anatomical differences (e.g., muscle atrophy) or reduced motivation (e.g., pain avoidance).

show abstract

“…LBP is a widespread pathological condition that is often related to impaired or degenerated trunk mobility, which becomes evident during common activities [39,40]. Taimela et al reported that lumbar muscle fatigue impaired lumbar positional sense in both patients with LBP and healthy subjects [41].…”

Section: Sensory Proprioceptive Inputs In Postural Controlmentioning

confidence: 99%

Comprehensive Physical Function Assessment in Elderly People

Ito¹

2017

Clinical Physical Therapy

View full text Add to dashboard Cite

In elderly people with mobility limitations, abnormalities in posture and gait contribute to the greater decline of physical motor function. The aim of the review article was to determine the comprehensive physical motor function assessment. Muscle function was assessed with the grip strength. Gait function was assessed with walking time tests conducted at a normal pace. Balance function was assessed with one-legged standing time. The 6-min walking distance test (6MD) was performed in a 10-m, straight corridor. Walking efficiency during the 6MD trials was measured using the Cosmed K4b2 (Rome, Italy), an indirect calorimetry system specifically designed to measure energy expenditure in nonlaboratory settings. The center of pressure was recorded using a balance board (Wii; Nintendo Co., Ltd., Kyoto, Japan). A vibratory stimulus was applied alternately to two muscles by fixing two vibrators from the vibration device onto the participant's gastrocnemius and lumbar multifidus muscle. These findings show that an assessment affecting postural control under proprioceptive stimulation might be a good indicator of elderly people. Also, the objective assessment of walking efficiency might be important for identifying the risk of external activity limitation or functional limitations among the late elderly.

show abstract

Impaired Postural Control of the Lumbar Spine Is Associated With Delayed Muscle Response Times in Patients With Chronic Idiopathic Low Back Pain

Abstract: Patients with chronic low back pain demonstrated poorer postural control of the lumbar spine and longer trunk muscle response times than healthy control volunteers. Correlation between these two phenomena suggests a common underlying pathology in the lumbar spine.

Cited by 503 publications

References 29 publications

Process stationarity and reliability of trunk postural stability

Process stationarity and reliability of trunk postural stability

Trunk muscular activation patterns and responses to transient force perturbation in persons with self-reported low back pain

Comprehensive Physical Function Assessment in Elderly People

Contact Info

Product

Resources

About