Echo intensity obtained from ultrasonography images reflecting muscle strength in elderly men

“…We considered that increased infiltration of non‐contractile intra‐muscle element in MM might reduce muscle shortening during biting, resulting in decreased MMD. Numerous studies have shown that the echo intensity of muscle affects muscle strength; however, in the present study, MMEI was not associated with MBF. Our previous study showed that MMEI was not correlated with MBF in community‐dwelling elderly persons, which was consistent with the findings of the present studies.…”

“…Additionally, this relationship did not change when covarying for body mass. Our results regarding SubQ and its relationship to EI conflict with those of Caresio et al (2015), Nijboer-Oosterveld et al (2011), andWatanabe et al (2013), who discovered significant positive correlations between EI and SubQ. Possible reasons for the disagreement are the training statuses of individuals examined, the age of the participants, the muscles examined, and the ultrasound probe orientation and settings.…”

“…Moreover, muscle echogenicity measures of the anterior thigh musculature have been reported to be inversely related to strength and gait speed, and may discriminate between older women who are able or unable to ambulate independently [ 56 ]. Our reported findings regarding the moderate independent association of rectus femoris echogenicity with peak knee extensor torque is consistent with the findings of Fukumoto et al [ 20 ] and Watanabe et al [ 21 ]. Furthermore, we observed that echogenicity of the rectus femoris was consistently associated with all upper and lower extremity strength outcomes with and without adjustments for body size.…”

“…We considered that increased infiltration of non‐contractile intra‐muscle element in MM might reduce muscle shortening during biting, resulting in decreased MMD. Numerous studies have shown that the echo intensity of muscle affects muscle strength; however, in the present study, MMEI was not associated with MBF. Our previous study showed that MMEI was not correlated with MBF in community‐dwelling elderly persons, which was consistent with the findings of the present studies.…”

“…Additionally, this relationship did not change when covarying for body mass. Our results regarding SubQ and its relationship to EI conflict with those of Caresio et al (2015), Nijboer-Oosterveld et al (2011), andWatanabe et al (2013), who discovered significant positive correlations between EI and SubQ. Possible reasons for the disagreement are the training statuses of individuals examined, the age of the participants, the muscles examined, and the ultrasound probe orientation and settings.…”

“…Moreover, muscle echogenicity measures of the anterior thigh musculature have been reported to be inversely related to strength and gait speed, and may discriminate between older women who are able or unable to ambulate independently [ 56 ]. Our reported findings regarding the moderate independent association of rectus femoris echogenicity with peak knee extensor torque is consistent with the findings of Fukumoto et al [ 20 ] and Watanabe et al [ 21 ]. Furthermore, we observed that echogenicity of the rectus femoris was consistently associated with all upper and lower extremity strength outcomes with and without adjustments for body size.…”

“…We considered that increased infiltration of non‐contractile intra‐muscle element in MM might reduce muscle shortening during biting, resulting in decreased MMD. Numerous studies have shown that the echo intensity of muscle affects muscle strength; however, in the present study, MMEI was not associated with MBF. Our previous study showed that MMEI was not correlated with MBF in community‐dwelling elderly persons, which was consistent with the findings of the present studies.…”

“…Additionally, this relationship did not change when covarying for body mass. Our results regarding SubQ and its relationship to EI conflict with those of Caresio et al (2015), Nijboer-Oosterveld et al (2011), andWatanabe et al (2013), who discovered significant positive correlations between EI and SubQ. Possible reasons for the disagreement are the training statuses of individuals examined, the age of the participants, the muscles examined, and the ultrasound probe orientation and settings.…”

“…Moreover, muscle echogenicity measures of the anterior thigh musculature have been reported to be inversely related to strength and gait speed, and may discriminate between older women who are able or unable to ambulate independently [ 56 ]. Our reported findings regarding the moderate independent association of rectus femoris echogenicity with peak knee extensor torque is consistent with the findings of Fukumoto et al [ 20 ] and Watanabe et al [ 21 ]. Furthermore, we observed that echogenicity of the rectus femoris was consistently associated with all upper and lower extremity strength outcomes with and without adjustments for body size.…”