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

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7487 ◽  
Author(s):  
Andrew M. Kern ◽  
Nikolaos Papachatzis ◽  
Jeffrey M. Patterson ◽  
Dustin A. Bruening ◽  
Kota Z. Takahashi
Keyword(s):  
Ankle Joint ◽  
Body Mass ◽  
Added Mass ◽  
Future Research ◽  
Joint Range Of Motion ◽  
Robotic Devices ◽  
Two Phases ◽  
Midtarsal Joint ◽  
Joint Range ◽  
Metatarsophalangeal Joints

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.

scholarly journals The effect of isokinetic dynamometer deceleration phase on maximum ankle joint range of motion and plantar flexor mechanical properties tested at different angular velocities

2019 ◽  
Vol 92 ◽  
pp. 169-174
Author(s):  
Matheus Daros Pinto ◽  
Cody James Wilson ◽  
Anthony David Kay ◽  
Jodie Cochrane ◽  
Anthony John Blazevich
Keyword(s):  
Mechanical Properties ◽  
Range Of Motion ◽  
Ankle Joint ◽  
Plantar Flexor ◽  
Isokinetic Dynamometer ◽  
Deceleration Phase ◽  
Joint Range Of Motion ◽  
Angular Velocities ◽  
Joint Range

The Relationship Between Ankle Joint Range of Motion and Position Sense in 18-50 Years Old Healthy Subjects in Zahedan

2006 ◽  
Vol 6 (4) ◽  
pp. 670-673 ◽  
Author(s):  
Mohammad Hosseinefar . ◽  
Esmail Ebrahimi . ◽  
Mahyar Salavati .
Keyword(s):  
Range Of Motion ◽  
Ankle Joint ◽  
Healthy Subjects ◽  
Position Sense ◽  
Joint Range Of Motion ◽  
Joint Range ◽  
The Relationship

scholarly journals The Effect of Forward Head on Ankle Joint Range of Motion and Static Balance

2012 ◽  
Vol 24 (9) ◽  
pp. 925-927 ◽  
Author(s):  
In Hyouk Hyong ◽  
Jae Hyun Kim
Keyword(s):  
Range Of Motion ◽  
Ankle Joint ◽  
Static Balance ◽  
Joint Range Of Motion ◽  
Joint Range

The Weil Osteotomy of the Lesser Metatarsals: a Clinical and Pedobarographic Follow-up Study

2000 ◽  
Vol 21 (5) ◽  
pp. 370-374 ◽  
Author(s):  
Geoffroy Vandeputte ◽  
Greta Dereymaeker ◽  
Annie Steenwerckx ◽  
Louis Peeraer
Keyword(s):  
Metatarsophalangeal Joint ◽  
Metatarsal Head ◽  
Clinical Results ◽  
Complete Disappearance ◽  
Joint Range Of Motion ◽  
Shortening Osteotomy ◽  
Joint Range ◽  
Metatarsophalangeal Joints ◽  
Mtp Joints

The clinical results with pedobarographic analysis were assessed in 32 patients (59 metatarsals) who underwent a distal metatarsal shortening (Weil) osteotomy for either intractable plantar keratoses or chronically dislocated lesser metatarsal phalangeal joints. All patients had increased pressure under the involved metatarsal heads. Thirty three of the 59 metatarsophalangeal (MTP) joints were chronically dislocated. At an average follow-up of 30 months, patients rated the result as excellent or good for 32 of the 37 feet (86%). The mean preoperative AOFAS score was 59 (maximum 100), which improved to 81 postoperatively. This difference is significant : p= 0,00001 (with t-test). Comparison of the pre and post-operative pedobarographic measurements showed a significant decreased load under the affected metatarsal heads (p = 0.05). A complete disappearance of the callus was noted under 44 operated metatarsals (75%) and partial disappearance under 12 metatarsals (20%). Two symptomatic transfer lesions occurred under an adjacent metatarsal head. Recurrent dislocations occurred in 5 joints (15%). While metatarsophalangeal joint range of motion was significantly diminished, toe strength was maintained. Average metatarsal shortening was 5.9 mm with no nonunions, delayed unions, or malunions. The Weil shortening osteotomy is a simple and reliable procedure which can effectively reduce the load under the lesser metatarsophalangeal joints and is helpful for the reduction of dorsally dislocated MTP joints.

scholarly journals The Influence of Peripheral Nerve Injury on the Ankle Joint Range of Motion and the Elasticity of the Soleus Muscle in Rats

2004 ◽  
Vol 19 (2) ◽  
pp. 127-130 ◽  
Author(s):  
Takeya ONO ◽  
Sadaaki OKI ◽  
Junko OCHI ◽  
Shusaku KANAI ◽  
Michele Eisemann SHIMIZU ◽  
...  
Keyword(s):  
Peripheral Nerve ◽  
Range Of Motion ◽  
Nerve Injury ◽  
Ankle Joint ◽  
Soleus Muscle ◽  
Peripheral Nerve Injury ◽  
Joint Range Of Motion ◽  
Joint Range

Static Ankle Joint Equinus

2010 ◽  
Vol 100 (3) ◽  
pp. 195-203 ◽  
Author(s):  
James Charles ◽  
Sheila D. Scutter ◽  
Jonathan Buckley
Keyword(s):  
Range Of Motion ◽  
Ankle Joint ◽  
Good Reliability ◽  
Future Studies ◽  
Second Stage ◽  
Joint Range Of Motion ◽  
Major Increase ◽  
Definition Of ◽  
A Minor ◽  
Joint Range

Equinus is characterized by reduced dorsiflexion of the ankle joint, but there is a lack of consensus regarding criteria for definition and diagnosis. This review examines the literature relating to the definition, assessment, diagnosis, prevalence, and complications of equinus. Articles on equinus and assessment of ankle joint range of motion were identified by searching the EMBASE, Medline, PubMed, EBSCOhost, Cinahl, and Cochrane databases and by examining the reference lists of the articles found. There is inconsistency regarding the magnitude of reduction in dorsiflexion required to constitute a diagnosis of equinus and no standard method for assessment; hence, the prevalence of equinus is unknown. Goniometric assessment of ankle joint range of motion was shown to be unreliable, whereas purpose-built tools demonstrated good reliability. Reduced dorsiflexion is associated with alterations in gait, increased forefoot pressure, and ankle injury, the magnitude of reduction in range of motion required to predispose to foot or lower-limb abnormalities is not known. In the absence of definitive data, we propose a two-stage definition of equinus: the first stage would reflect dorsiflexion of less than 10° with minor compensation and a minor increase in forefoot pressure, and the second stage would reflect dorsiflexion of less than 5° with major compensation and a major increase in forefoot pressure. This proposed definition of equinus will assist with standardizing the diagnosis and will provide a basis for future studies of the prevalence, causes, and complications of this condition. (J Am Podiatr Med Assoc 100(3): 195–203, 2010)

scholarly journals First metatarsophalangeal joint range of motion is associated with lower limb kinematics in individuals with first metatarsophalangeal joint osteoarthritis

2020 ◽  
Author(s):  
Jamie J Allan ◽  
Jodie A McClelland ◽  
Shannon E Munteanu ◽  
Andrew K Buldt ◽  
Karl B Landorf ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Ankle Joint ◽  
Sagittal Plane ◽  
Metatarsophalangeal Joint ◽  
Hip Joints ◽  
First Metatarsophalangeal Joint ◽  
Clinical Measurement ◽  
Joint Range Of Motion ◽  
Dynamic Function ◽  
Joint Range

Abstract Background Osteoarthritis of the first metatarsophalangeal joint (1st MTP joint OA) is a common and disabling condition that results in pain and limited joint range of motion. There is inconsistent evidence regarding the relationship between clinical measurement of 1st MTP joint maximum dorsiflexion and dynamic function of the joint during level walking. Therefore, the aim of this study was to examine the association between passive non-weightbearing (NWB) 1st MTP joint maximum dorsiflexion and sagittal plane kinematics in individuals with radiographically confirmed 1st MTP joint OA. Methods Forty-eight individuals with radiographically confirmed 1st MTP joint OA (24 males and 24 females; mean age 57.8 years, standard deviation 10.5) underwent clinical measurement of passive NWB 1st MTP joint maximum dorsiflexion and gait analysis during level walking using a 10-camera infrared Vicon motion analysis system. Sagittal plane kinematics of the 1st MTP, ankle, knee, and hip joints were calculated. Associations between passive NWB 1st MTP joint maximum dorsiflexion and kinematic variables were explored using Pearson’s r correlation coefficients. Results Passive NWB 1st MTP joint maximum dorsiflexion was significantly associated with maximum 1st MTPJ dorsiflexion (r=0.486, p<0.001), ankle joint maximum plantarflexion (r=0.383, p=0.007), and ankle joint excursion (r=0.399, p=0.005) during gait. There were no significant associations between passive NWB 1st MTP joint maximum dorsiflexion and sagittal plane kinematics of the knee or hip joints. Conclusions These findings suggest that clinical measurement of 1st MTP joint maximum dorsiflexion provides useful insights into the dynamic function of the foot and ankle during the propulsive phase of gait in this population.

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