Dynamic Functional Stiffness Index of the Ankle Joint During Daily Living

Bayram, Hande Argunsah; Bayram, Mehmed Bugrahan

doi:10.1053/j.jfas.2017.11.034

Cited by 8 publications

(5 citation statements)

References 17 publications

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“…Our hypothesis that midtarsal quasi-stiffness increases with added mass was also supported in the DF and PF phases. These findings support the mounting evidence that biological limbs can modulate stiffness in response to varying locomotor demands (Ferris, Liang & Farley, 1999; Farley & Morgenroth, 1999; Argunsah Bayram & Bayram, 2018).…”

Section: Discussionsupporting

confidence: 86%

“…Ankle quasi-stiffness is highly variable across subjects and walking conditions, and increases with walking speed (Shamaei, Sawicki & Dollar, 2013; Collins et al, 2018). Additionally, the ankle’s moment-angle relationship becomes increasingly non-linear as walking speed increases (Hansen et al, 2004), and when varied locomotor tasks are performed (e.g., stair descent, stair ascent, walking and running) (Argunsah Bayram & Bayram, 2018). Although the quasi-stiffness of the ankle has been explored across a wide array of activities, the quasi-stiffness behavior of the entire foot and ankle complex is not well understood.…”

Section: Introductionmentioning

confidence: 99%

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Ankle and midtarsal joint quasi-stiffness during walking with added mass

Kern

Papachatzis

Patterson

et al. 2019

PeerJ

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Examination of how the ankle and midtarsal joints modulate stiffness in response to increased force demand will aid understanding of overall limb function and inform the development of bio-inspired assistive and robotic devices. The purpose of this study is to identify how ankle and midtarsal joint quasi-stiffness are affected by added body mass during over-ground walking. Healthy participants walked barefoot over-ground at 1.25 m/s wearing a weighted vest with 0%, 15% and 30% additional body mass. The effect of added mass was investigated on ankle and midtarsal joint range of motion (ROM), peak moment and quasi-stiffness. Joint quasi-stiffness was broken into two phases, dorsiflexion (DF) and plantarflexion (PF), representing approximately linear regions of their moment-angle curve. Added mass significantly increased ankle joint quasi-stiffness in DF (p < 0.001) and PF (p < 0.001), as well as midtarsal joint quasi-stiffness in DF (p < 0.006) and PF (p < 0.001). Notably, the midtarsal joint quasi-stiffness during DF was ~2.5 times higher than that of the ankle joint. The increase in midtarsal quasi-stiffness when walking with added mass could not be explained by the windlass mechanism, as the ROM of the metatarsophalangeal joints was not correlated with midtarsal joint quasi-stiffness (r = −0.142, p = 0.540). The likely source for the quasi-stiffness modulation may be from active foot muscles, however, future research is needed to confirm which anatomical structures (passive or active) contribute to the overall joint quasi-stiffness across locomotor tasks.

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Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Ankle and midtarsal joint quasi-stiffness during walking with added mass

Kern

Papachatzis

Patterson

et al. 2019

PeerJ

View full text Add to dashboard Cite

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“…Periodic increases in oestrogen levels are necessary for a protective effect on tendon and muscle health. Moreover, a previous report indicated that the ankle joint is the largest energy generator among the lower extremity joints for maintaining balance (Argunsah Bayram & Bayram, 2018). The tibialis anterior (TA) is an ankle stabilizer that supports the peroneus muscle, which maintains balance and locomotion (Craig et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Assessing the differences in muscle stiffness measured with shear wave elastography and myotonometer during the menstrual cycle in young women

Khowailed

Lee

2022

Clin Physio Funct Imaging

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This study assessed the differences in muscle stiffness of the medial gastrocnemius (MG) and tibialis anterior (TA) muscles at rest and contraction during ovulation and follicular phase (menstruation) in women with regular menstrual cycle. Thirty-four young healthy women (mean age 21.3 ± 1.3 years) with regular menstrual cycles participated in this study. Stiffness of the TA and MG muscles at rest and voluntary

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“…The ankle joint plays several important roles such as shock absorption, stability, and propulsion in different subphases of the gait cycle, which can be realized by the regulations of ankle biomechanics ( Robertson and Winter, 1980 ; Neptune et al, 2001 ). When environments change, the ankle joint adapts its biomechanical properties accordingly ( Winter, 1995 ; Bayram and Bayram, 2018 ). These adaptions include the regulations of ankle moment and stiffness ( Kepple et al, 1997 ; Whitmore et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

How Compliance of Surfaces Affects Ankle Moment and Stiffness Regulation During Walking

Xie

Lyu

Zhang

et al. 2021

Front. Bioeng. Biotechnol.

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Humans can regulate ankle moment and stiffness to cope with various surfaces during walking, while the effect of surfaces compliance on ankle moment and stiffness regulations remains unclear. In order to find the underlying mechanism, ten healthy subjects were recruited to walk across surfaces with different levels of compliance. Electromyography (EMG), ground reaction forces (GRFs), and three-dimensional reflective marker trajectories were recorded synchronously. Ankle moment and stiffness were estimated using an EMG-driven musculoskeletal model. Our results showed that the compliance of surfaces can affect both ankle moment and stiffness regulations during walking. When the compliance of surfaces increased, the ankle moment increased to prevent lower limb collapse and the ankle stiffness increased to maintain stability during the mid-stance phase of gait. Our work improved the understanding of gait biomechanics and might be instructive to sports surface design and passive multibody model development.

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Dynamic Functional Stiffness Index of the Ankle Joint During Daily Living

Cited by 8 publications

References 17 publications

Ankle and midtarsal joint quasi-stiffness during walking with added mass

Ankle and midtarsal joint quasi-stiffness during walking with added mass

Assessing the differences in muscle stiffness measured with shear wave elastography and myotonometer during the menstrual cycle in young women

How Compliance of Surfaces Affects Ankle Moment and Stiffness Regulation During Walking

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