Navicular drop is negatively associated with flexor hallucis brevis thickness in community-dwelling older adults

Fukumoto, Yoshihiro; Asai, Takeshi; Ichikawa, Masaru; Kusumi, Hiroyuki; Kubo, Hajime; T, Oka; Kasuya, Akihiko

doi:10.1016/j.gaitpost.2020.03.009

Cited by 7 publications

(6 citation statements)

References 29 publications

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“…This cannot be achieved through DXA or BIA and allows the ultrasound to detect differences in loss of muscle size among muscles that are aging, 5–7 diseased, 8–10 or with skeletal disorders. 11 , 12 Ultrasound-derived values of muscle thickness (MT) and cross-sectional area have been validated using magnetic resonance imaging (MRI), computed tomography (CT), and DXA. 13 Therefore, ultrasound is now widely used for muscle assessments in clinical settings, communities, and research facilities.…”

Section: Introductionmentioning

confidence: 99%

Cut-off Values for Lower Limb Muscle Thickness to Detect Low Muscle Mass for Sarcopenia in Older Adults

Fukumoto¹,

Ikezoe²,

Taniguchi³

et al. 2021

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Purpose Ultrasound-based prediction methods for the detection of low muscle mass for sarcopenia in older adults have been explored previously; however, the muscle that most accurately predicts it is unclear. This study aimed to clarify prediction accuracy and cut-off values for ultrasound-derived thigh and lower leg muscle thickness (MT) to detect low skeletal muscle mass index (SMI) in older adults and to estimate cut-off values based on two standard deviations (SD) below younger adult means for the corresponding muscles as an early detection tool for site-specific low muscle mass. Methods This study included 204 community-dwelling older (64 males, 140 females, mean age: 75.4 years) and 59 younger (31 males, 28 females, mean age: 22.3 years) adults. The MT of the rectus femoris, vastus intermedius, gastrocnemius, and soleus muscles was measured using ultrasound; SMI was measured using bioelectrical impedance analysis. Results The prevalence of a low SMI among older adults was 20.3% (n=13) for males and 21.4% (n=30) for females. The receiver operating characteristic analysis revealed that the total MT for the four muscles measured presented the highest area under the curve (AUC) value to predict low SMI for males (0.849) and females (0.776). The AUC value was the highest for the total MT of the gastrocnemius and soleus muscles for males and the gastrocnemius for females (0.836, 0.748; cut-off value: 5.67 cm, 1.42 cm, respectively). Muscle-specific differences between the low SMI-predicting and SD-based cut-off values were observed. The SD-based value for the rectus femoris (1.85 cm) was substantially higher than the low SMI-predicting value (1.51 cm) in males. Conclusion Ultrasound measurement of lower leg muscles may be a simple, robust measure to detect low muscle mass for sarcopenia. Additionally, cut-off values for site-specific muscle mass loss may not always agree with those for whole-limb muscle mass loss.

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Section: Introductionmentioning

confidence: 99%

Cut-off Values for Lower Limb Muscle Thickness to Detect Low Muscle Mass for Sarcopenia in Older Adults

Fukumoto¹,

Ikezoe²,

Taniguchi³

et al. 2021

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“…As in previous studies 15 , 16 ) , foot length, heel width, and forefoot width were greater in the standing position. In addition, the three-dimensional foot indices showed greater calcaneus eversion angle 17 ) , other foot indices in anterior and inferior positions, and medial foot indices in the medial position 16 ) . We considered that the foot indices of foot length, heel width, and forefoot width were large due to compression of the heel fat pad 18 ) by weight bearing and the low foot arch.…”

Section: Discussionmentioning

confidence: 87%

“…The interrelationships within the foot showed a positive correlation between the calcaneus eversion angle, which is the fulcrum of rearfoot loading 15 ) , and the medial displacement of the medial and lateral malleoli, navicular, and dorsum of the foot. On the other hand, the downward displacement of the foot due to weight bearing was thought to be due to a greater calcaneus eversion angle mobility 17 ) . However, based on the results of the current study, a greater calcaneus eversion angle mobility was associated with smaller downward displacement of the medial malleolus, navicular, and dorsum of the foot mobility.…”

Section: Discussionmentioning

confidence: 99%

The interrelationship between three-dimensional foot mobility and bodyweight bearing

et al. 2023

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[Purpose] To clarify the three-dimensional nature of foot mobility and its interrelationships within the foot due to bodyweight bearing. [Participants and Methods] Data regarding left foot mobility due to body weight bearing were collected from 31 healthy adults. Foot shape differences while sitting and standing, and their interrelationship were examined. The same examiner reapplied the landmark stickers when misaligned during measurement position changes. [Results] The foot length, heel width, forefoot width, hallux valgus angle, and calcaneus eversion angle were significantly larger in the standing than in sitting position. The digitus minimus varus angle was significantly smaller in the standing than in sitting position. The medial and lateral malleoli, navicular, and dorsum of the foot were displaced medially and inferiorly; the other indices, except for the midfoot, were displaced anteriorly. The interrelationships within the foot showed a positive correlation between the calcaneus eversion angle and the medial displacement of the medial and lateral malleoli, navicular, and dorsum of the foot points. There was a negative correlation between the calcaneus eversion angle and inferior displacement of the medial malleolus, navicular, and dorsum of the foot. [Conclusion] The intra-foot coordination relationship in response to bodyweight bearing was clarified.

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“…Among several interventions for alleviating flexible flatfoot, strengthening exercises for the intrinsic foot (Fiolkowski et al, 2003;Mulligan and Cook, 2013;Okamura et al, 2019) and tibialis posterior muscles (Alam et al, 2019;Smyth et al, 2017) are commonly advocated. This is due to the finding that the intrinsic foot muscles have a smaller cross-sectional area in individuals with flatfoot than in those with normal arch height (Angin et al, 2014;Fukumoto et al, 2020). While the short foot exercise is the recommended method of activating the intrinsic foot muscles, (Mulligan and Cook, 2013;Sulowska et al, 2016;Unver et al, 2020) when combined with tibialis posterior strengthening exercise, greater improvements in MLA height have been reported (Alam et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Gluteus medius muscle strengthening exercise effects on medial longitudinal arch height in individuals with flexible flatfoot: a randomized controlled trial

Engkananuwat¹,

Kanlayanaphotporn²

2023

J Exerc Rehabil

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This study aimed to compare the effects of 8 weeks of foot plus hip exercise to foot exercise alone on medial longitudinal arch (MLA) parameters; navicular drop (ND), arch height index (AHI), plantar pressure, static balance, and dynamic balance were measured at baseline, 4 weeks, and 8 weeks. A total of 52 healthy participants with bilateral flatfoot were randomly assigned into foot exercise (n= 26) and foot plus hip exercise (n= 26) group. At 4 weeks, the foot plus hip exercise group showed significantly less ND (P= 0.002), plantar pressure at the medial forefoot (P= 0.002), and mediolateral displacement (P= 0.001) while showing a greater AHI (P= 0.019) than the foot exercise group. At 8 weeks, there was also significantly less plantar pressure at the medial hindfoot (P= 0.017) and less anteroposterior displacement (P= 0.002) in the foot plus hip exercise group than in the foot exercise group. No significant differences between groups were found in dynamic balance. The addition of gluteus medius muscle strengthening exercise to foot exercise was more effective in supporting the MLA than performing foot exercise alone.

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Navicular drop is negatively associated with flexor hallucis brevis thickness in community-dwelling older adults

Cited by 7 publications

References 29 publications

Cut-off Values for Lower Limb Muscle Thickness to Detect Low Muscle Mass for Sarcopenia in Older Adults

Cut-off Values for Lower Limb Muscle Thickness to Detect Low Muscle Mass for Sarcopenia in Older Adults

The interrelationship between three-dimensional foot mobility and bodyweight bearing

Gluteus medius muscle strengthening exercise effects on medial longitudinal arch height in individuals with flexible flatfoot: a randomized controlled trial

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