Association of walking speed with sagittal spinal alignment, muscle thickness, and echo intensity of lumbar back muscles in middle-aged and elderly women

Masaki, Mitsuhiro; Ikezoe, Tome; Fukumoto, Yoshihiro; Minami, Seigo; Aoyama, Junichi; Ibuki, Satoko; Kimura, Misaka; Ichihashi, Noriaki

doi:10.1007/s40520-015-0442-0

Cited by 32 publications

(18 citation statements)

References 32 publications

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“…Trunk muscle balance with predominance of extensor over flexor muscles is associated with better physical capacity 41) and less back pain 31) . Masaki et al reported that maximal walking speed was negatively associated with the thickness of lumbar erector spinae muscles in middle-aged and elderly women 42) . Some authors have recently reported that the ratios of trunk flexion to extension in healthy untrained adults were usually lower than those in athletes 43) , suggesting that a superiority of trunk-extensor to flexor strength is associated with high performance even in the healthy participants.…”

Section: Discussionmentioning

confidence: 99%

Association between Trunk Muscle Strength, Lumbar Spine Bone Mineral Density, Lumbar Scoliosis Angle, and Skeletal Muscle Volume and Locomotive Syndrome in Elderly Individuals: A Dual-Energy X-ray Absorptiometry Study

Takenaka

Ikemoto

Suzuki

et al. 2020

Spine Surg Relat Res

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 Takenaka H. conceived and designed the study, analyzed the data, and prepared the draft and tables.  Ikemoto T. conceived and designed the study, collected data, analyzed the data, and prepared the draft and tables.  Suzuki J. analyzed the data and prepared the draft and tables.  Inoue M & Arai YC collected the data and prepared the draft and tables.  Ushida T. & Deie M. designed the study and reviewed drafts of the paper.  Kamiya M. conceived and designed the study, prepared the draft and tables, and reviewed drafts of the paper.

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Section: Discussionmentioning

confidence: 99%

Association between Trunk Muscle Strength, Lumbar Spine Bone Mineral Density, Lumbar Scoliosis Angle, and Skeletal Muscle Volume and Locomotive Syndrome in Elderly Individuals: A Dual-Energy X-ray Absorptiometry Study

Takenaka

Ikemoto

Suzuki

et al. 2020

Spine Surg Relat Res

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“…In addition, the cross-sectional area of both ESM and PMM did not recover to the point before admission until approximately one month after discharge, suggesting a possibility that patients had problems in their ADL. The reduction in thickness of lumbar and spinal muscle leads to decreased walking speed [13], and dysfunction of the PMM can be a cause of falls [11]. It is also reported that muscle strength of individuals in their 70s and 80s decreases by 20-40% compared to that of younger individuals, and 30% of those in their 60s may suffer from sarcopenia [14].…”

Section: Discussionmentioning

confidence: 99%

Effects of Length of Bed Rest during Hospitalization on Skeletal Muscle in Patients with Conservatively Treated Acute Aortic Dissection

Takahashi¹,

Soyama²,

Sasanuma³

et al. 2017

Int J Phys Med Rehabil

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Background: Little evidence exists on the effects of exercise guidance in patients with acute aortic dissection after a period of complete bed rest. Few studies have examined changes in skeletal muscle during such periods in patients with cardiovascular disease. This retrospective study sought to investigate changes in skeletal muscle in the standard rehabilitation period in patients with aortic dissection and to discuss an optimal rehabilitation approach to promote safe early return to the community.

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“…Adjusting the focus to the muscle ROI optimizes the image by increasing the spatial resolution for a specific area. Although this approach has been previously used for measuring EI estimates of muscle quality (Fukumoto et al 2012b;Masaki et al 2016;Taniguchi et al 2017), most often, focus position is not specified in the literature. The confounding effect of fat thickness is different between sonograms obtained with a fixed focus position (Figure 2A) and sonograms obtained with the focus adjusted to the ROI position within the sonogram ( Figure 2B).…”

Section: <<< Figure 2 >>>mentioning

confidence: 99%

Examination of the confounding effect of subcutaneous fat on muscle echo intensity utilizing exogenous fat

Müller

Lanferdini

Karam

et al. 2021

Appl. Physiol. Nutr. Metab.

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We aimed to provide an unbiased estimate of the confounding effect of subcutaneous fat thickness on ultrasound echo intensity (EI) measures of muscle quality. The effect of fat thickness on EI was verified for an approximate range of 0 to 3 cm of fat using exogeneous layers of pork fat over the human tibialis anterior muscle. Sonograms were obtained i) with focus constant across fat thickness conditions and ii) with focus position adjusted to the muscle region of interest (ROI) position for each fat thickness level. In agreement with our hypothesis, increasing fat between the probe and the ROI resulted in a decrease in EI. This overestimating effect of fat on muscle quality differs between sonograms with constant focus and sonograms with focus position adjusted to the vertical displacement in ROI position that occurs for different levels of fat thickness. Correcting equations to account for the overestimating effect of fat on muscle quality are provided for both focus conditions. This is the first study to systematically analyze the confounding effect of fat thickness as an independent factor and the provided equations can be used for improved accuracy in estimates of muscle quality in obese/overweight subjects/patients. NOVELTY • The independent confounding effect of subcutaneous fat thickness on US estimates of muscle quality was quantified • US estimates of muscle quality depend on whether focus is adjusted to the muscle region of interest or not • Equations for correcting muscle quality estimates are provided

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Association of walking speed with sagittal spinal alignment, muscle thickness, and echo intensity of lumbar back muscles in middle-aged and elderly women

Abstract: Background Age-related change of spinal alignment in the standing position is known to be

Cited by 32 publications

References 32 publications

Association between Trunk Muscle Strength, Lumbar Spine Bone Mineral Density, Lumbar Scoliosis Angle, and Skeletal Muscle Volume and Locomotive Syndrome in Elderly Individuals: A Dual-Energy X-ray Absorptiometry Study

Association between Trunk Muscle Strength, Lumbar Spine Bone Mineral Density, Lumbar Scoliosis Angle, and Skeletal Muscle Volume and Locomotive Syndrome in Elderly Individuals: A Dual-Energy X-ray Absorptiometry Study

Effects of Length of Bed Rest during Hospitalization on Skeletal Muscle in Patients with Conservatively Treated Acute Aortic Dissection

Examination of the confounding effect of subcutaneous fat on muscle echo intensity utilizing exogenous fat

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