Muscular Function in Chronic Low-Back Dysfunction

Soderberg, Gary L; Barr, John O.

doi:10.1097/00007632-198301000-00014

Cited by 32 publications

(15 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To increase resistance Thera Band exercise bands were used. These exercises have been shown to strongly activate the trunk and hip flexor muscles [1,13,15,40] in co-contraction with the lumbar extensor muscles [57], but are also associated with the generation of large compressive forces on the spine [41]. This form of floor exercise is used extensively to train the trunk muscles in both athletic programs (competitive sports and fitness) and rehabilitation [45].…”

Section: Rehabilitation Protocolmentioning

confidence: 99%

The effects of rehabilitation on the muscles of the trunk following prolonged bed rest

Hides

Lambrecht²,

Richardson

et al. 2010

Eur Spine J

View full text Add to dashboard Cite

Microgravity and inactivity due to prolonged bed rest have been shown to result in atrophy of spinal extensor muscles such as the multifidus, and either no atrophy or hypertrophy of flexor muscles such as the abdominal group and psoas muscle. These effects are long-lasting after bed rest and the potential effects of rehabilitation are unknown. This two-group intervention study aimed to investigate the effects of two rehabilitation programs on the recovery of lumbo-pelvic musculature following prolonged bed rest. 24 subjects underwent 60 days of head down tilt bed rest as part of the 2nd Berlin BedRest Study (BBR2-2). After bed rest, they underwent one of two exercise programs, trunk flexor and general strength (TFS) training or specific motor control (SMC) training. Magnetic resonance imaging of the lumbo-pelvic region was conducted at the start and end of bed rest and during the recovery period (14 and 90 days after re-ambulation). Cross-sectional areas (CSAs) of the multifidus, psoas, lumbar erector spinae and quadratus lumborum muscles were measured from L1 to L5. Morphological changes including disc volume, spinal length, lordosis angle and disc height were also measured. Both exercise programs restored the multifidus muscle to pre-bed-rest size, but further increases in psoas muscle size were seen in the TFS group up to 14 days after bed rest. There was no significant difference in the number of low back pain reports for the two rehabilitation groups (p=.59). The TFS program resulted in greater decreases in disc volume and anterior disc height. The SMC training program may be preferable to TFS training after bed rest as it restored the CSA of the multifidus muscle without generating potentially harmful compressive forces through the spine.

show abstract

Section: Rehabilitation Protocolmentioning

confidence: 99%

The effects of rehabilitation on the muscles of the trunk following prolonged bed rest

Hides

Lambrecht²,

Richardson

et al. 2010

Eur Spine J

View full text Add to dashboard Cite

show abstract

“…[13][14][15] Andersson et al 16 reported that there is a linear relationship between exercise intensity and muscle activity for both the medial (i.e., multifidus) and lateral (i.e., erector spinae) lumbar muscle groups, while Vink et al 17 found a linear relationship for the medial group and a nonlinear relationship for the lateral group. Other investigators have shown normal, 18,19 increased, 20 and decreased 21,22 lumbar muscle activity levels in patients with low back pain.…”

mentioning

confidence: 86%

The Use of Magnetic Resonance Imaging to Evaluate Lumbar Muscle Activity During Trunk Extension Exercise at Varying Intensities

Mayer

Graves

Clark

et al. 2005

Spine

View full text Add to dashboard Cite

Muscle functional MRI can be used to characterize lumbar muscle function during trunk extension exercise. The levels and recruitment patterns of the lumbar extensors, as measured by muscle T2 shifts, vary with exercise intensity. Future research is needed to assess the mechanism of the nonlinear relationship between T2 shifts and exercise intensity, and to clarify the effects of fatigue and the order of exercise presentation on the T2 response of the lumbar extensors.

show abstract

“…In the general population, obesity has also been associated with poor performance on physical fitness tests, such as back muscular endurance [6, 7], which has been reported to be predictive of future incidence of low back pain [8]. In the general population, poorly conditioned back and core muscles have been associated with low back pain, as individuals with low back pain have reduced strength, endurance, atrophy, fatty infiltration, and abnormal activity in various back and core muscles [8–11]. …”

Section: Introductionmentioning

confidence: 99%

The Impact of Obesity on Back and Core Muscular Endurance in Firefighters

et al. 2012

View full text Add to dashboard Cite

The purpose of this study was to assess the relationships between obesity and measures of back and core muscular endurance in firefighters. Methods. A cross-sectional study was conducted in career firefighters without low back pain. Obesity measures included body mass index (BMI) and body fat percentage assessed with air displacement plethysmography. Muscular endurance was assessed with the Modified Biering Sorensen (back) and Plank (core) tests. Relationships were explored using t-tests and regression analyses. Results. Of the 83 participants enrolled, 24 (29%) were obese (BMI ≥ 30). Back and core muscular endurance was 27% lower for obese participants. Significant negative correlations were observed for BMI and body fat percentage with back and core endurance (r = −0.42 to −0.52). Stepwise regression models including one obesity measure (BMI, body fat percentage, and fat mass/fat-free mass), along with age and self-reported physical exercise, accounted for 17–19% of the variance in back muscular endurance and 29–37% of the variance in core muscular endurance. Conclusions. Obesity is associated with reduced back and core muscular endurance in firefighters, which may increase the risk of musculoskeletal injuries. Obesity should be considered along with back and core muscular endurance when designing exercise programs for back pain prevention in firefighters.

show abstract

Muscular Function in Chronic Low-Back Dysfunction

Cited by 32 publications

References 0 publications

The effects of rehabilitation on the muscles of the trunk following prolonged bed rest

The effects of rehabilitation on the muscles of the trunk following prolonged bed rest

The Use of Magnetic Resonance Imaging to Evaluate Lumbar Muscle Activity During Trunk Extension Exercise at Varying Intensities

The Impact of Obesity on Back and Core Muscular Endurance in Firefighters

Contact Info

Product

Resources

About