Applicability of ultrasonography for evaluating trunk muscle size: a pilot study

Wachi, Michio; Suga, Tadashi; Higuchi, Takatoshi; Misaki, Jun; Tsuchikane, Ryo; Tanaka, Daichi; Miyake, Yuto; Isaka, Tadao

doi:10.1589/jpts.29.245

Cited by 16 publications

(33 citation statements)

References 23 publications

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“…Kubo et al determined using ultrasonography that AT CSA did not differ between sprinters and untrained subjects. It is well known that magnetic resonance image (MRI) is more appropriate to evaluate tissue size than ultrasonography . Additionally, Bohm et al have reported that there was a lack of a significant correlation between ultrasonography and MRI‐measured AT CSAs.…”

Section: Introductionmentioning

confidence: 99%

Specific adaptations of patellar and Achilles tendons in male sprinters and endurance runners

et al. 2018

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This study aimed to determine the impact of long-term training on Achilles tendon (AT) and patellar tendon (PT) hypertrophy in sprinters and endurance runners. The cross-sectional area (CSA) of AT and PT in 40 sprinters, 40 endurance runners, and 40 untrained subjects was measured using magnetic resonance imaging. The AT and PT CSAs were calculated at its proximal, middle, and distal portions. Three CSAs of AT and PT were averaged to give an overall absolute CSA for each tendon. To minimize the effect of body size on tendon CSA and obtain relative CSA, overall absolute CSA for each tendon was normalized with body mass. Absolute AT CSA did not differ significantly among all 3 groups. However, we found that relative AT CSA was significantly larger in endurance runners than in sprinters and untrained subjects (P < .001 for both). In contrast, both absolute and relative PT CSAs were significantly larger in sprinters than in endurance runners and untrained subjects (P ≤ .001 for all). These findings indicate that AT hypertrophy is characteristic of endurance runners, whereas PT hypertrophy is characteristic of sprinters. Therefore, we suggest that the AT and PT may undergo specific morphological adaptations in these athletes. K E Y W O R D Scross-sectional area, joint moment, magnetic resonance imaging, tendon stiffness wileyonlinelibrary.com/journal/tsm2Transl Sports Med. 2018;1:104-109.

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Section: Introductionmentioning

confidence: 99%

Specific adaptations of patellar and Achilles tendons in male sprinters and endurance runners

et al. 2018

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“…Firstly, we did not perform CT or MRI to evaluate sarcopenia. Nevertheless, very high correlations between ultrasound and MRI-measured thicknesses of RA have been reported: r = 0.932 to 0.963 in non-athletes (P < 0.001); 28 and r = 0.847 to 0.926 in athletes (P < 0.001). 29 Moreover, in several reports on liver cirrhosis, sarcopenia evaluated using CT or MRI has been fairly well predicted by the same surrogate markers that we used: MAMC (AUROC 0.84, P = 0.001; 13 and r = 0.385, P < 0.001 8 ), HGS (r = 0.382, P < 0.001 8 ) and SGA class (in men only marginally P = 0.051; 8 or a modified score in all patients, P < 0.001 13 ).…”

Section: Discussionmentioning

confidence: 99%

Is rectus abdominis thickness associated with survival among patients with liver cirrhosis? A prospective cohort study

et al. 2019

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Nutritional status is often impaired among patients with liver cirrhosis, and this results in malnutrition in more than 50% of the cases. 1 The main feature of malnutrition comprises loss of muscle mass and altered functionality, i.e. sarcopenia. 2 It has been reported that about 40% of patients with liver cirrhosis are sarcopenic and the percentage of such patients increases along with the severity of the disease. 3 Studies have shown that sarcopenic cirrhotic patients are at higher risk of developing complications (refractory ascites, hepatorenal syndrome, spontaneous bacterial peritonitis or hepatic encephalopathy) and death. 3-6 The current "gold standard" in evaluating sarcopenia is skeletal muscle mass estimation by means of computed tomography (CT) scans or magnetic resonance imaging (MRI). The "skeletal muscle index", which takes into account all skeletal muscle groups at the level of the L3-L4 vertebrae, 3,6,7 the "psoas muscle thickness by height" 5,7 or the "psoas muscle index" can be measured. 8-10 However, CT scans and MRI are of limited use as screening tools, as they may be expensive, time consuming (MRI) and prone to artifacts in patients with ascites (MRI) 11 or irradiating (CT scans). 12 Surrogate markers of sarcopenia include the Subjective Global Assessment (SGA) score and anthropometric measurements such as mid-arm muscle circumference (MAMC) and hand grip strength (HGS). SGA, MAMC and HGS show correlations with the skeletal muscle index in cirrhotic patients and in other populations. 13,14 The prognosis for patients with liver cirrhosis is determined using several scores. The Child-Pugh score was the first one to be proposed. 15 The model for end-stage liver disease (MELD) was implemented as a prognostic score for cirrhotic patients undergoing trans-jugular intrahepatic I MD.

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“…The US-measured MTs of the trunk muscles were measured by using a B-mode ultrasonographic apparatus (SSD-3500SV; Aloka, Japan) with a linear transducer (scanning frequency; 7.5 MHz). The methods for measuring MTs of the abdominal and back muscles using US have been previously described 16 ) . In brief, the MTs for the RA were obtained from three parts, including the upper RA (URA), central RA (CRA), and lower RA (LRA).…”

Section: Methodsmentioning

confidence: 99%

“…An increasing number of studies are now using US to measure trunk muscle size 12 , 13 , 14 , 15 ) . Therefore, we applied this US technique and then found that the US-measured MT of trunk muscles correlated strongly with MRI-measured MCSA in healthy untrained subjects 16 ) . However, compared with untrained subjects, athletes associated with various sports, especially those involving trunk rotation, have larger trunk muscles 3 , 7 , 8 , 9 ) .…”

Section: Introductionmentioning

confidence: 99%

Applicability of ultrasonography for evaluating trunk muscles size in athletes: a study focused on baseball batters

et al. 2017

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[Purpose] Recently, we demonstrated that the thicknesses of trunk muscles measured using ultrasonography were correlated strongly with the cross-sectional areas measured using magnetic resonance imaging in untrained subjects. To further explore the applicability of ultrasonography in the clinical setting, the present study examined the correlation between ultrasonography-measured thicknesses and magnetic resonance imaging-measured cross-sectional areas of trunk muscles in athletes with trained trunk muscles. [Subjects and Methods] The thicknesses and cross-sectional areas at total 10 sites of the bilateral sides of the upper, central, and lower parts of the rectus abdominis, abdominal wall, and multifidus lumborum in 30 male baseball batters were measured. [Results] Overall thicknesses and cross-sectional areas of the trunk muscles in baseball batters were higher than those in untrained subjects who participated in our previous study. The ultrasonography-measured thicknesses at all 10 sites of the trunk muscles correlated highly with the magnetic resonance imaging-measured cross-sectional areas in baseball batters. [Conclusion] These results suggest that the thicknesses of the trunk muscles measured using ultrasonography can be used as a surrogate marker for the cross-sectional area measured using magnetic resonance imaging, in athletes who have larger trunk muscles than that of untrained subjects.

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Applicability of ultrasonography for evaluating trunk muscle size: a pilot study

Cited by 16 publications

References 23 publications

Specific adaptations of patellar and Achilles tendons in male sprinters and endurance runners

Specific adaptations of patellar and Achilles tendons in male sprinters and endurance runners

Is rectus abdominis thickness associated with survival among patients with liver cirrhosis? A prospective cohort study

Applicability of ultrasonography for evaluating trunk muscles size in athletes: a study focused on baseball batters

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