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https://www.readbyqxmd.com/read/28110181/dynamic-measurement-of-surface-strain-distribution-on-the-foot-during-walking
#1
Kohta Ito, Kosuke Maeda, Ikumi Fujiwara, Koh Hosoda, Takeo Nagura, Taeyong Lee, Naomichi Ogihara
To clarify the mechanism underlying the development of foot disorders such as diabetic ulcers and deformities, it is important to understand how the foot surface elongates and contracts during gait. Such information is also helpful for improving the prevention and treatment of foot disorders. We therefore measured temporal changes in the strain distribution on the foot surface during human walking. Five adult male participants walked across a glass platform placed over an angled mirror set in a wooden walkway at a self-selected speed and the dorsolateral and plantar surfaces of the foot were filmed using two pairs of synchronized high-speed cameras...
December 18, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28110165/pulling-a-school-trolley-a-good-kinematic-option-for-children
#2
Eva Orantes-Gonzalez, Jose Heredia-Jimenez
This study analyzed the kinematic gait parameters associated with pulling a school trolley with different loads and the effects of the type of packing device user (backpack vs. trolley) and body side (loadedunloaded). Methods Fifty-three elementary subjects walked at a selfselected speed under four experimental conditions: without a trolley and pulling a trolley with 10%, 15% and 20% of the subject́s body weight (BW). Averages and standard deviations of spatiotemporal gait parameters and 3D kinematics of the lower limbs and thorax were obtained for the loaded and unloaded sides of the body...
January 15, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28110164/plantarflexor-passive-elastic-properties-related-to-bmi-and-walking-performance-in-older-women
#3
Dain P LaRoche
The objective of this study was to examine the influence of BMI on the passive-elastic properties of the ankle plantarflexors in older women. Twenty-three women, 65-80 yr, were separated into normal weight (NW, BMI <25.0kgm(-2), n=11) and overweight-obese (OW, BMI≥25.0kgm(-2), n=12) groups. Resistive torque of the ankle plantarflexors was recorded on an isokinetic dynamometer by passively moving the ankle into dorsiflexion. Stiffness, work absorption, and hysteresis were calculated across an ankle dorsiflexion angle of 10-15°...
January 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28110146/enhanced-arm-swing-alters-interlimb-coordination-during-overground-walking-in-individuals-with-traumatic-brain-injury
#4
Ksenia I Ustinova, Joseph E Langenderfer, Nilanthy Balendra
The current study investigated interlimb coordination in individuals with traumatic brain injury (TBI) during overground walking. The study involved 10 participants with coordination, balance, and gait abnormalities post-TBI, as well as 10 sex- and age-matched healthy control individuals. Participants walked 12m under two experimental conditions: 1) at self-selected comfortable walking speeds; and 2) with instructions to increase the amplitude and out-of-phase coordination of arm swinging. The gait was assessed with a set of spatiotemporal and kinematic parameters including the gait velocity, step length and width, double support time, lateral displacement of the center of mass, the amplitude of horizontal trunk rotation, and angular motions at shoulder and hip joints in sagittal plane...
January 19, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28106574/walking-ability-of-spinal-cord-injury-individuals-how-to-improve-it
#5
Morteza Sadeghi, Gholam Hussein Ghasemi, Mohammad Taghi Karimi
BACKGROUND: Subjects with Spinal Cord Injury (SCI) should use various assistive devices to stand and walk. Unfortunately they suffer from slow walking speed, high energy consumption, and too much force applied on upper limb while walking. The aim of this study was to determine the gap between the gait performance of SCI and normal subjects to conclude how the performance of SCI can be improved. METHOD: Three groups of SCI walked with orthosis, SCI walked without orthosis, and normal subjects were recruited in this study...
January 13, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28105953/a-powered-prosthetic-ankle-joint-for-walking-and-running
#6
Martin Grimmer, Matthew Holgate, Robert Holgate, Alexander Boehler, Jeffrey Ward, Kevin Hollander, Thomas Sugar, André Seyfarth
BACKGROUND: Current prosthetic ankle joints are designed either for walking or for running. In order to mimic the capabilities of an able-bodied, a powered prosthetic ankle for walking and running was designed. A powered system has the potential to reduce the limitations in range of motion and positive work output of passive walking and running feet. METHODS: To perform the experiments a controller capable of transitions between standing, walking, and running with speed adaptations was developed...
December 19, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28104540/varus-thrust-during-walking-and-the-risk-of-incident-and-worsening-medial-tibiofemoral-mri-lesions-the-multicenter-osteoarthritis-study
#7
Alexandra E Wink, K Douglas Gross, Carrie A Brown, Ali Guermazi, Frank Roemer, Jingbo Niu, James Torner, Cora E Lewis, Michael C Nevitt, Irina Tolstykh, Leena Sharma, David T Felson
OBJECTIVE: To determine the association of varus thrust during walking to incident and worsening medial tibiofemoral cartilage damage and bone marrow lesions (BMLs) over two years in older adults with or at risk for OA. METHOD: Subjects from the Multicenter Osteoarthritis Study were studied. Varus thrust was visually assessed from high-speed videos of forward walking trials. Baseline and two-year MRIs were acquired from one knee per subject and read for cartilage loss and BMLs...
January 16, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28103907/the-association-between-fear-of-falling-and-smoothness-of-lower-trunk-oscillation-in-gait-varies-according-to-gait-speed-in-community-dwelling-older-adults
#8
Tsuyoshi Asai, Shogo Misu, Ryuichi Sawa, Takehiko Doi, Minoru Yamada
BACKGROUND: Fear of falling (FoF) is common in community-dwelling older adults. FoF and increased walking speed are associated with lower trunk oscillation during gait in older adults. We hypothesized that older adults with FoF would struggle to walk safely when instructed to walk faster than usual. METHODS: Participants included 260 community-dwelling older adults aged over 65 years (mean age = 71.9 ± 3.9 years) who were able to walk independently without an assistive device...
January 19, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28103470/gender-differences-in-asymmetrical-limb-support-patterns-between-subjects-with-and-without-recurrent-low-back-pain
#9
Paul S Sung, J Tim Zipple, Pamela Danial
New insight regarding limb-dominance effects on temporal-spatial gait parameters is needed to further investigate subjects with recurrent low back pain (LBP). Although an asymmetrical gait pattern was found to reflect natural functional differences, there is a lack of information regarding gender differences on dominant limb support patterns in subjects with LBP. The purpose of this study was to investigate temporal-spatial gait parameters based on limb dominance and gender between subjects with and without LBP...
January 16, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28103405/altered-walking-strategy-and-increased-unsteadiness-in-participants-with-impaired-glucose-tolerance-and-type-2-diabetes-relates-to-small-fibre-neuropathy-but-not-vitamin-d-deficiency
#10
M M Almurdhi, S J Brown, F L Bowling, A J M Boulton, Maria Jeziorska, Rayaz A Malik, Neil D Reeves
AIMS: To investigate alterations in walking strategy and dynamic sway (unsteadiness) in people with impaired glucose tolerance and people with Type 2 diabetes in relation to severity of neuropathy and vitamin D levels. METHODS: A total of 20 people with Type 2 diabetes, 20 people with impaired glucose tolerance and 20 people without either Type 2 diabetes or impaired glucose tolerance (control group) underwent gait analysis using a motion analysis system and force platforms, and detailed assessment of neuropathy and serum 25 hydroxy-vitamin D levels...
January 19, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28102429/training-and-orthotic-effects-related-to-functional-electrical-stimulation-of-the-peroneal-nerve-in-stroke
#11
Tamsyn Street, Ian Swain, Paul Taylor
OBJECTIVE: To examine the evidence for a training effect on the lower limb of functional electrical stimulation. DESIGN: Cohort study. PATIENTS: A total of 133 patients >6 months post-stroke. METHODS: Training and orthotic effects were determined from walking speed over 10 m, associated minimal and substantial clinically important differences (i.e. >0.05 and >0.10 m/s), and Functional Ambulation Category (FAC), ranging from household walking to independent walking in the community...
January 18, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28101944/biomechanical-implications-of-walking-with-indigenous-footwear
#12
Catherine Willems, Gaetane Stassijns, Wim Cornelis, Kristiaan D'Août
OBJECTIVES: This study investigates biomechanical implications of walking with indigenous "Kolhapuri" footwear compared to barefoot walking among a population of South Indians. MATERIALS AND METHODS: Ten healthy adults from South India walked barefoot and indigenously shod at voluntary speed on an artificial substrate. The experiment was repeated outside, on a natural substrate. Data were collected from (1) a heel-mounted 3D-accelerometer recording peak impact at heel contact, (2) an ankle-mounted 3D-goniometer (plantar/dorsiflexion and inversion/eversion), and (3) sEMG electrodes at the m...
January 19, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28099484/increased-anterior-pelvic-angle-characterizes-the-gait-of-children-with-attention-deficit-hyperactivity-disorder-adhd
#13
Hiroaki Naruse, Takashi X Fujisawa, Chiho Yatsuga, Masafumi Kubota, Hideaki Matsuo, Shinichiro Takiguchi, Seiichiro Shimada, Yuto Imai, Michio Hiratani, Hirotaka Kosaka, Akemi Tomoda
BACKGROUND: Children with attention deficit/hyperactivity disorder (ADHD) frequently have motor problems. Previous studies have reported that the characteristic gait in children with ADHD is immature and that subjects demonstrate higher levels of variability in gait characteristics for the lower extremities than healthy controls. However, little is known about body movement during gait in children with ADHD. The purpose of this study was to identify the characteristic body movements associated with ADHD symptoms in children with ADHD...
2017: PloS One
https://www.readbyqxmd.com/read/28097926/a-pilot-study-of-a-minimally-supervised-home-exercise-and-walking-program-for-people-with-parkinson-s-disease-in-jordan
#14
Hanan Khalil, Monica Busse, Lori Quinn, Mohammad Nazzal, Waleed Batyha, Shatha Alkhazaleh, Mahmoud A Alomari
AIM: This study aimed to evaluate the feasibility and cultural considerations of a minimally supervised, home-based exercise program in Jordan. METHODS: Quantitative and qualitative approaches were used. Thirty participants were randomly allocated to either an 8-week intervention group (n = 16), or a standard care group (n = 14). The intervention incorporated the home use of an exercise DVD, walking program and initial instructional sessions and weekly phone calls provided by a physiotherapist...
January 18, 2017: Neurodegenerative Disease Management
https://www.readbyqxmd.com/read/28097064/phalangeal-joints-kinematics-during-ostrich-struthio-camelus-locomotion
#15
Rui Zhang, Qiaoli Ji, Gang Luo, Shuliang Xue, Songsong Ma, Jianqiao Li, Lei Ren
The ostrich is a highly cursorial bipedal land animal with a permanently elevated metatarsophalangeal joint supported by only two toes. Although locomotor kinematics in walking and running ostriches have been examined, these studies have been largely limited to above the metatarsophalangeal joint. In this study, kinematic data of all major toe joints were collected from gaits with double support (slow walking) to running during stance period in a semi-natural setup with two selected cooperative ostriches. Statistical analyses were conducted to investigate the effect of locomotor gait on toe joint kinematics...
2017: PeerJ
https://www.readbyqxmd.com/read/28095084/changes-on-walking-during-street-crossing-situations-and-on-dorsiflexion-strength-of-older-caribbean-americans-after-an-exercise-program-a-pilot-study
#16
Edgar R Vieira, Ruth Tappen, Sareen S Gropper, Maria T Severi, Gabriella Engstrom, Marcio R de Oliveira, Alexandre C Barbosa, Rubens A da Silva
The objective of this pilot study was to evaluate a 6-month exercise program completed by 10 older Caribbean Americans. Assessments were done at baseline, 3 and 6 months and included walks on an instrumented mat at preferred speed, and during street crossing simulations with regular (10s) and with reduced time (5s). There were no significant differences on preferred walking speed overtime. Differences between the street crossing conditions were found only at 6 months. Significant changes overtime among the assessments were found only during street crossing with reduced time...
January 17, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/28094580/is-walking-symmetry-important-for-ambulatory-patients-with-spinal-cord-injury
#17
Makamas Kumprou, Pipatana Amatachaya, Thanat Sooknuan, Thiwabhorn Thaweewannakij, Sugalya Amatachaya
PURPOSE: To assess and compare the levels of walking symmetry in ambulatory participants with spinal cord injury (SCI) who had different degrees of lesion severity, levels of walking ability, and fall history. In addition, the study explored the relationship between the levels of walking symmetry and variables related to the ability of well-controlled walking of the participants. STUDY DESIGN: Cross-sectional study. METHODS: Sixty-six eligible participants were assessed and interviewed for levels of walking symmetry, walking speed, functional endurance, symmetrical lower limb support ability, balance control, and fall history over the last 6 months...
January 17, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28092227/the-reliability-of-the-extra-load-index-as-a-measure-of-relative-load-carriage-economy
#18
Sean Hudson, Carlton Cooke, Ray Lloyd
The aim of this study was to measure the reliability of the Extra Load Index (ELI) as a method for assessing relative load carriage economy. Seventeen volunteers (12 males, 5 females) performed walking trials at 3 km(.)h(-1), 6 km(.)h(-1) and a self-selected speed. Trial conditions were repeated 7 days later to assess test-retest reliability. Trials involved four, four-minute periods of walking, each separated by 5 minutes of rest. The initial stage was performed unloaded followed in a randomised order by a second unloaded period and walking with backpacks of 7kg and 20kg...
January 16, 2017: Ergonomics
https://www.readbyqxmd.com/read/28088382/functional-electrical-stimulation-for-foot-drop-in-multiple-sclerosis-a-systematic-review-and-meta-analysis-of-the-impact-on-gait-speed
#19
REVIEW
Linda Miller, Angus McFadyen, Anna C Lord, Rebecca Hunter, Lorna Paul, Danny Rafferty, Roy Bowers, Paul Mattison
OBJECTIVE: To review the efficacy of functional electrical stimulation (FES) used for foot drop in people with multiple sclerosis (pwMS) on gait speed in short and long walking performance tests. DATA SOURCES: Five databases (Cochrane Library, CINAHL, Embase, MEDLINE, Pubmed) and reference lists were searched. STUDY SELECTION: Studies of both observational and experimental design where gait speed data in pwMS could be extracted were included...
January 11, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28088064/improved-cognition-while-cycling-in-parkinson-s-disease-patients-and-healthy-adults
#20
Audrey A Hazamy, Lori J P Altmann, Elizabeth Stegemöller, Dawn Bowers, Hyo Keun Lee, Jonathan Wilson, Michael S Okun, Chris J Hass
Persons with Parkinson's disease (PD) are typically more susceptible than healthy adults to impaired performance when two tasks (dual task interference) are performed simultaneously. This limitation has by many experts been attributed to limitations in cognitive resources. Nearly all studies of dual task performance in PD employ walking or balance-based motor tasks, which are commonly impaired in PD. These tasks can be performed using a combination of one or two executive function tasks. The current study examined whether persons with PD would demonstrate greater dual task effects (DTEs) on cognition compared to healthy older adults (HOAs) during a concurrent cycling task...
January 11, 2017: Brain and Cognition
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