Intramuscular differences in shear modulus of the rectus femoris muscle during passive knee flexion

Kodesho, Taiki; Taniguchi, Keigo; Kato, Takuya; Katayose, Masaki

doi:10.1007/s00421-021-04644-1

Cited by 12 publications

(4 citation statements)

References 32 publications

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“…As reported in previous studies and independently of sex, our results showed that both muscle and tendon SWV increased with joint flexion (i.e., stretched position) 9,30 . Furthermore, one spatial difference was reported inside the RF, as reported previously 38 . This intramuscular inhomogeneity was clearly related to the stretch effect of the hip joint fully extended in the present study, leading to increased stress in the mid part as compared to the distal one within this bi‐articular muscle.…”

Section: Discussionsupporting

confidence: 90%

“…9,30 Furthermore, one spatial difference was reported inside the RF, as reported previously. 38 This intramuscular inhomogeneity was clearly related to the stretch effect of the hip joint fully extended in the present study, leading to increased stress in the mid part as compared to the distal one within this bi-articular muscle. Overall, SWV measurements within skeletal muscles remained relatively homogeneous.…”

Section: Sex Differences and Intramuscular Variabilitysupporting

confidence: 48%

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Sex‐related differences and effects of short and long trail running races on resting muscle‐tendon mechanical properties

Fouré

Besson

Stauffer

et al. 2022

Scandinavian Med Sci Sports

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The purpose of the study was to assess sex‐related differences in resting mechanical properties and adaptations of skeletal muscles and tendons in response to trail running races of different distances using multi‐site shear wave elastography assessments of the lower limb, force capacity and blood analyses. Sex differences in resting mechanical properties of knee extensor and plantar flexor muscles and tendons were characterized by shear wave velocity (SWV) measurements in healthy males (N = 42) and females (N = 25) trained in long‐distance running. Effects of running distance on muscle and tendon properties were assessed in short (<60 km, N = 23) vs. long (>100 km, N = 26) distance races. Changes in isometric maximal voluntary contraction torque, serum C‐reactive protein and creatine kinase activity were also quantified after running races. Higher SWV of relaxed triceps surae muscle was detected in females as compared to males before running races (+4.8%, p = 0.006), but the significant increases in triceps surae muscle group (+7.0%, p = 0.001) and patellar tendon SWV (+15.4%, p = 0.001) after short‐distance races were independent of sex. A significant decrease in triceps surae muscle SWV was found after long‐distance races in the whole experimental population (−3.1%, p = 0.049). Post‐races increase in C‐reactive protein and creatine kinase activity were significantly correlated to the relative decreases in triceps surae and quadriceps femoris skeletal muscle SWV (ρ = −0.56, p = 0.001 and ρ = −0.51, p = 0.001, respectively). Resting mechanical properties of muscles and tendons are affected by sex, and adaptations to trail races are related to running distance. Exercise‐induced changes in resting skeletal muscle mechanical properties are associated with enhanced indirect markers of inflammation and muscle damage.

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Section: Discussionsupporting

confidence: 90%

Section: Sex Differences and Intramuscular Variabilitysupporting

confidence: 48%

Sex‐related differences and effects of short and long trail running races on resting muscle‐tendon mechanical properties

Fouré

Besson

Stauffer

et al. 2022

Scandinavian Med Sci Sports

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“…In this study, the %RMS values of the AL muscle during the hip abduction and rotation tasks were 1.4 and 1.7%, respectively. Moreover, these observations were comparable to the %RMS of the rectus femoris muscle 26 (1.3%) and hamstring muscles 27 (1.4%) previously reported by studies that examined the changes in shear modulus during passive stretching. Therefore, changes in the shear modulus of the AL muscle may reflect the passive force of the AL muscle with elongation.…”

Section: Discussionsupporting

confidence: 89%

Quantifying the shear modulus of the adductor longus muscle during hip joint motion using shear wave elastography

Kato

Taniguchi

Kodesho

et al. 2023

Sci Rep

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The present study aims to assess the effect of the hip flexion angle on the shear modulus of the adductor longus (AL) muscle associated with passive hip abduction and rotation. Sixteen men participated in the study. For the hip abduction task, the hip flexion angles used were − 20, 0, 20, 40, 60, and 80°, and the hip abduction angles were 0, 10, 20, 30, and 40°. For the hip rotation task, the hip flexion angles used were − 20, 0, 20, 40, 60, and 80°, hip abduction angles were 0 and 40°, and hip rotation angles were 20° internal rotation, 0° rotation, and 20° external rotation. The shear modulus at 20° extension was significantly higher than that at 80° flexion for the 10, 20, 30 and 40° hip abduction (i.e., P < 0.05). The shear modulus at 20° internal rotation and 20° extension was significantly higher than that at 0° rotation and 20° external rotation, regardless of the hip abduction angle (i.e., P < 0.05). The mechanical stress of the AL muscle associated with hip abduction was higher in the extended position. Furthermore, the mechanical stress could increase with internal rotation only at the hip-extended position.

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“…These results indicate that the indirect estimation of passive force change can be measured by the shear modulus using SWE. Based on this theory, some researchers have recently reported changes in passive muscle elasticity associated with the joint angle (Kodesho 2021; Le et al, 2015) and the effect of stretching on muscle elasticity (Nakao et al, 2018; Taniguchi et al, 2015). In this study, the strong linear relationship between the passive force and the shear modulus of the AL muscle has different morphological characteristics from human RF and animal muscles.…”

Section: Discussionmentioning

confidence: 99%

Adductor longus: An anatomical study to better understand groin pain

et al. 2022

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We investigated the shear modulus-passive force relationship in the hip adductor longus (AL) muscles of human cadavers and explored the effect of muscle architecture on the elastic properties of the AL muscle using shear wave elastography (SWE).Nine AL muscles were harvested from a soft, embalmed cadaver. The AL muscles were affixed to a custom-built device comprising two clamps, a pulley, and a cable to provide passive loads, which were increased from 0 to 600 g in 60-g increments. The shear modulus of the AL muscle was measured in the proximal (Pro), middle (Mid), and distal (Dis) regions. The masses and anatomical cross-sectional areas (ACSAs) of the AL muscles were measured. The shear modulus-passive load relationship of each tested muscle region was analyzed by fitting a least-squares regression line. Moreover, the rate of increase in the shear modulus per unit load (s) was calculated. The shear modulus and passive force were linearly correlated for all AL muscles in each region (p < 0.01). The mean coefficients of determination (R 2 ) for Pro, Mid, and Dis were 0.989, 0.986, and 0.982, respectively. The rate of increase in the shear modulus per unit load significantly correlated with the reciprocal of the muscle mass (r = 0.77, p = 0.02) and ACSA (r = 0.43, p = 0.03). Shear wave elastography can be used as an indirect measure of passive force in any region of the AL muscle. Additionally, the rate of increase in the shear modulus per unit load could be associated with muscle architectural parameters.

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Intramuscular differences in shear modulus of the rectus femoris muscle during passive knee flexion

Cited by 12 publications

References 32 publications

Sex‐related differences and effects of short and long trail running races on resting muscle‐tendon mechanical properties

Sex‐related differences and effects of short and long trail running races on resting muscle‐tendon mechanical properties

Quantifying the shear modulus of the adductor longus muscle during hip joint motion using shear wave elastography

Adductor longus: An anatomical study to better understand groin pain

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