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ankle range of movement

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https://www.readbyqxmd.com/read/28269027/measurement-of-shank-angle-during-stance-using-laser-range-finders
#1
Pouya Amiri, Luke J MacLean, Robert E Kearney
Ankle joint stiffness, the dynamic relationship between the joint angle and the torque acting about it, plays an important role in the control of upright stance. In order to identify the contribution of ankle joint stiffness to stance control, ankle joint must be perturbed externally. One way to do this is to displace the foot that will cause shank movement. For identification, the ankle angle must be measured with high accuracy, for which we need to measure both foot and shank angles. However, most motion capture systems do not have the resolution and accuracy needed to measure the small ankle joint movements that occur during stance...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28265172/relationship-between-muscle-tendon-length-range-of-motion-and-resistance-to-passive-movement-in-children-with-normal-and-increased-tone
#2
Ayumi Matsukiyo, Ah-Cheng Goh, Yoshimi Asagai
[Purpose] The aim of this study was to quantify the resistance to passive movement by measuring changes in muscle-tendon length and joint range of motion (ROM), before and after applying a standardized 5-kilogram tension force, and to correlate and compare these changes to muscle tone. [Subjects and Methods] Children with cerebral palsy (n=29) and typically developed children (n=12) participated in this observational study. The modified Ashworth scale (MAS) was used to assess tone in the right plantarflexor muscle...
February 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28265136/comparison-of-forward-walking-and-backward-walking-in-stroke-hemiplegia-patients-focusing-on-the-paretic-side
#3
Misato Makino, Akiyoshi Takami, Atsushi Oda
[Purpose] To investigate the features of backward walking in stroke patients with hemiplegia by focusing on the joint movements and moments of the paretic side, walking speed, stride length, and cadence. [Subjects and Methods] Nine stroke patients performed forward walking and backward walking along a 5-m walkway. Walking speed and stride length were self-selected. Movements were measured using a three-dimensional motion analysis system and a force plate. One walking cycle of the paretic side was analyzed. [Results] Walking speed, stride length, and cadence were significantly lower in backward walking than in forward walking...
February 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28259030/a-pilot-investigation-into-the-relationship-between-static-diagnosis-of-ankle-equinus-and-dynamic-ankle-and-foot-dorsiflexion-during-stance-phase-of-gait-time-to-revisit-theory
#4
Alfred Gatt, Stephanie De Giorgio, Nachiappan Chockalingam, Cynthia Formosa
BACKGROUND: Although the clinical assessment of ankle dorsiflexion has traditionally been measured utilising various goniometric means, the validity of this static examination has never been investigated. Since any impairment in ankle flexibility is likely to result in injuries, it is imperative that the correct examination technique is conducted. HYPOTHESIS/PURPOSE: To determine whether a clinical diagnosis of ankle equinus, or limited ankle dorsiflexion, correlates with a decreased dorsiflexion range of movement of the foot and ankle during gait...
February 6, 2017: Foot
https://www.readbyqxmd.com/read/28253060/effects-of-slipper-features-and-properties-on-walking-and-sit-to-stand-tasks-of-older-women
#5
Wai-Ting Lo, Kit-Lun Yick, Newman Lau, Lok-Tung Tse, Sun-Pui Ng, Joanne Yip
Indoor slippers with a strap across the dorsal forefoot are popular with older women. However, their influence on the foot motion has not been reported. This study evaluated the range of movement in the knee and ankle joints during walking and changes in trunk displacement during sit-to-stand when ten healthy older women worn two types of slippers and in their barefeet. Comparing to barefeet, walking in slippers results in significantly increases in the knee flexion angle in the swing phase. However, there is nonsignificant difference in the ankle angle in any phase across all conditions...
March 2, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/28227240/measurement-of-shank-angle-during-stance-using-laser-range-finders
#6
Pouya Amiri, Luke J MacLean, Robert E Kearney, Pouya Amiri, Luke J MacLean, Robert E Kearney, Robert E Kearney, Luke J MacLean, Pouya Amiri
Ankle joint stiffness, the dynamic relationship between the joint angle and the torque acting about it, plays an important role in the control of upright stance. In order to identify the contribution of ankle joint stiffness to stance control, ankle joint must be perturbed externally. One way to do this is to displace the foot that will cause shank movement. For identification, the ankle angle must be measured with high accuracy, for which we need to measure both foot and shank angles. However, most motion capture systems do not have the resolution and accuracy needed to measure the small ankle joint movements that occur during stance...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227176/a-novel-method-to-assess-angle-sensor-performance-for-wearable-exoskeletal-joint-kinematics
#7
Nicholas B Bolus, Geza F Kogler, Omer T Inan, Nicholas B Bolus, Geza F Kogler, Omer T Inan, Geza F Kogler, Omer T Inan, Nicholas B Bolus
Full range of motion (ROM) at a joint is necessary for efficient and adaptive movement; as such, it is an essential clinical evaluation measure for assessing an individual's motor function, which can be affected by any number of musculoskeletal injuries and neuropathies. Measurement of joint ROM in the clinic has classically been accomplished statically through the use of a manual goniometer. More recent efforts in the fields of prosthetics and orthotics have demonstrated the potential utility of wearable systems (e...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28210030/changes-in-postural-strategy-during-exercise-against-perturbation-using-the-balance-exercise-assist-robot-a-pilot-study
#8
Norihide Itoh, Shigeo Tanabe, Satoshi Hirano, Eiichi Saitoh, Jumpei Kawabata, Daisuke Imoto, Yasuo Mikami, Toshikazu Kubo
[Purpose] To clarify the changes in postural strategy by evaluating leg joint motion and muscle activity before and after continuous exercise against perturbation using the Balance Exercise Assist Robot (BEAR). [Subjects and Methods] Nine healthy subjects (male 7, female 2; mean age 23 ± 1 years) performed a postural perturbation coping exercise only. In the task, the robot leaned and moved automatically. Participants were instructed to maintain their default upright position and they performed the exercise five times in a row (1 minute/trial)...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28199903/the-effect-of-variable-rest-intervals-and-chronic-ankle-instability-on-triplanar-ankle-motion-during-performance-of-the-star-excursion-balance-test
#9
Yong Ung Kwon, D S Blaise Williams
Inadequate rest intervals may contribute to impaired performance during functional tests. However, the effect of different rest intervals on performance of the SEBT in individuals with and without CAI is not known. Our purposes were to determine whether different rest intervals impact ankle kinematics during the SEBT and whether there differences between those two populations. 24 controls and 24 CAI completed 3 trials in 3 reach directions (anteromedial; AM, medial; M, posteromedial; PM). The order of rest intervals and reach distance were randomized and counterbalanced...
February 12, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28174604/challenging-the-foundations-of-the-clinical-model-of-foot-function-further-evidence-that-the-root-model-assessments-fail-to-appropriately-classify-foot-function
#10
Hannah L Jarvis, Christopher J Nester, Peter D Bowden, Richard K Jones
BACKGROUND: The Root model of normal and abnormal foot function remains the basis for clinical foot orthotic practice globally. Our aim was to investigate the relationship between foot deformities and kinematic compensations that are the foundations of the model. METHODS: A convenience sample of 140 were screened and 100 symptom free participants aged 18-45 years were invited to participate. The static biomechanical assessment described by the Root model was used to identify five foot deformities...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28104260/robot-guided-ankle-sensorimotor-rehabilitation-of-patients-with-multiple-sclerosis
#11
Yunju Lee, Kai Chen, Yupeng Ren, Jongsang Son, Bruce A Cohen, James A Sliwa, Li-Qun Zhang
BACKGROUND: People with multiple sclerosis (MS) often develop symptoms including muscle weakness, spasticity, imbalance, and sensory loss in the lower limbs, especially at the ankle, which result in impaired balance and locomotion and increased risk of falls. Rehabilitation strategies that improve ankle function may improve mobility and safety of ambulation in patients with MS. This pilot study investigated effectiveness of a robot-guided ankle passive-active movement training in reducing motor and sensory impairments and improving balance and gait functions...
January 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28005297/predicted-percentage-dissatisfied-with-ankle-draft
#12
Shichao Liu, Stefano Schiavon, Alan Kabanshi, William W Nazaroff
Draft is unwanted local convective cooling. The draft risk model of Fanger et al. (Energy and Buildings 12, 21-39, 1988) estimates the percentage of people dissatisfied with air movement due to overcooling at the neck. There is no model for predicting draft at ankles, which is more relevant to stratified air distribution systems such as underfloor air distribution (UFAD) and displacement ventilation (DV). We developed a model for predicted percentage dissatisfied with ankle draft (PPDAD ) based on laboratory experiments with 110 college students...
December 22, 2016: Indoor Air
https://www.readbyqxmd.com/read/27989348/patient-expectations-and-satisfaction-with-foot-and-ankle-surgery-in-saudi-arabia-a-retrospective-cohort-study
#13
Omar A Al-Mohrej, Waleed K Alsarhani, Ahmed M Al-Mohrej, Emad M Masuadi, Nader S Al-Kenani
The success of surgery is associated not only with the quality of the procedure but also with the degree to which it meets the patient's expectations. Limited data are available on patient expectations related to foot and ankle surgery in Saudi Arabia. Our study assessed the preoperative expectations and postoperative satisfaction of patients who had undergone foot and ankle surgery at 1 hospital in Saudi Arabia. A survey-based, retrospective cohort study was conducted among patients who had undergone elective foot or ankle surgery at King Abdul-Aziz Medical City, Riyadh, from January 2010 to December 2015...
January 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27932678/adjustments-with-running-speed-reveal-neuromuscular-adaptations-during-landing-associated-with-high-mileage-running-training
#14
Jasper Verheul, Adam C Clansey, Mark J Lake
It remains to be determined whether running training influences the amplitude of lower limb muscle activations prior to and during the first half of stance, and whether such changes are associated with joint stiffness regulation and usage of stored energy from tendons. Therefore, the aim of this study was to investigate neuromuscular and movement adaptations before and during landing in response to running training across a range of speeds. Two groups of high mileage (HM; >45 km/wk, n=13) and low mileage (LM; <15 km/wk, n=13) runners ran at four speeds (2...
December 8, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27914110/physical-exercise-for-the-treatment-of-non-ulcerated-chronic-venous-insufficiency
#15
REVIEW
Diego N Araujo, Cibele Td Ribeiro, Alvaro Cc Maciel, Selma S Bruno, Guilherme Af Fregonezi, Fernando Al Dias
BACKGROUND: Chronic venous insufficiency (CVI) is a common disease that causes discomfort and impairs the quality of life of affected persons. Treatments such as physical exercise that aim to increase the movement of the ankle joint and strengthen the muscle pump in the calf of the leg may be useful to reduce the symptoms of CVI. OBJECTIVES: To assess and summarise the existing clinical evidence on the efficacy and safety of physical exercise programmes for the treatment of individuals with non-ulcerated CVI...
December 3, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27892823/changes-in-joint-range-of-motion-and-muscle-tendon-unit-stiffness-after-varying-amounts-of-dynamic-stretching
#16
Takamasa Mizuno
The purpose of this study was to examine the effects of varying amounts of dynamic stretching (DS) on joint range of motion (ROM) and stiffness of the muscle-tendon unit (MTU). Fifteen healthy participants participated in four randomly ordered experimental trials, which involved one (DS1), four (DS4) and seven (DS7) sets of DS, or control conditions/seated at rest (CON). Each DS set consisted of 15 repetitions of an ankle dorsiflexion-plantarflexion movement. The displacement of the muscle-tendon junction (MTJ) was measured using ultrasonography while the ankle was passively dorsiflexed at 0...
November 28, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27888845/mr-imaging-of-impingement-and-entrapment-syndromes-of-the-foot-and-ankle
#17
REVIEW
Edward Sellon, Philip Robinson
Impingement is a clinical syndrome of chronic pain and restricted range of movement caused by compression of abnormal bone or soft tissue within the ankle joint. It usually occurs following a sprain injury or repetitive microtrauma causing haemorrhage, synovial hyperplasia, and abnormal soft tissue interposition within the joint. MR imaging is particularly valuable in being able to detect not only the soft tissue and osseous abnormalities involved in these syndromes, but also a wide variety of other potential causes of ankle pain and instability that also may need to be addressed clinically...
February 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27875755/individual-differences-in-brainstem-and-basal-ganglia-structure-predict-postural-control-and-balance-loss-in-young-and-older-adults
#18
Matthieu P Boisgontier, Boris Cheval, Sima Chalavi, Peter van Ruitenbeek, Inge Leunissen, Oron Levin, Alice Nieuwboer, Stephan P Swinnen
It remains unclear which specific brain regions are the most critical for human postural control and balance, and whether they mediate the effect of age. Here, associations between postural performance and corticosubcortical brain regions were examined in young and older adults using multiple structural imaging and linear mixed models. Results showed that of the regions involved in posture, the brainstem was the strongest predictor of postural control and balance: lower brainstem volume predicted larger center of pressure deviation and higher odds of balance loss...
February 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/27863604/bowenwork-for-symptom-management-of-women-breast-cancer-survivors-with-lymphedema-a-pilot-study
#19
Christine A Argenbright, Ruth E Taylor-Piliae, Lois J Loescher
PURPOSE: The objectives of this pilot study for women breast cancer survivors with lymphedema was 1) to evaluate recruitment rates, retention rates, adherence to Bowenwork (a noninvasive complementary therapy involving gentle muscle movements), home exercises, safety and comfort; 2) determine the effect of Bowenwork on quality of life (QOL), functional status, perceived pain, range of motion (ROM), arm/ankle circumference (to assess for localized and systemic changes). METHODS: Participants received 4 Bowenwork sessions with home exercises...
November 2016: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/27861541/accuracy-and-reliability-of-the-kinect-version-2-for-clinical-measurement-of-motor-function
#20
Karen Otte, Bastian Kayser, Sebastian Mansow-Model, Julius Verrel, Friedemann Paul, Alexander U Brandt, Tanja Schmitz-Hübsch
BACKGROUND: The introduction of low cost optical 3D motion tracking sensors provides new options for effective quantification of motor dysfunction. OBJECTIVE: The present study aimed to evaluate the Kinect V2 sensor against a gold standard motion capture system with respect to accuracy of tracked landmark movements and accuracy and repeatability of derived clinical parameters. METHODS: Nineteen healthy subjects were concurrently recorded with a Kinect V2 sensor and an optical motion tracking system (Vicon)...
2016: PloS One
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