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gait variability

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https://www.readbyqxmd.com/read/28934309/increased-plasma-proline-concentrations-are-associated-with-sarcopenia-in-the-elderly
#1
Kenji Toyoshima, Marie Nakamura, Yusuke Adachi, Akira Imaizumi, Tomomi Hakamada, Yasuko Abe, Eiji Kaneko, Soiciro Takahashi, Kentaro Shimokado
BACKGROUND AND PURPOSE: Metabolome analyses have shown that plasma amino acid profiles reflect various pathological conditions, such as cancer and diabetes mellitus. It remains unclear, however, whether plasma amino acid profiles change in patients with sarcopenia. This study therefore aimed to investigate whether sarcopenia-specific changes occur in plasma amino acid profiles. METHODS: A total of 153 community-dwelling and seven institutionalized elderly individuals (56 men, 104 women; mean age, 77...
2017: PloS One
https://www.readbyqxmd.com/read/28933330/-short-term-results-of-surgical-treatment-of-patients-with-hallux-rigidus
#2
M Dygrýnová, M Uvízl, J Gallo
PURPOSE OF THE STUDY Hallux rigidus is common and degenerative arthritis of the first metatarsophalangeal joint. The aim of this study was to assess the results of cheilectomy and total joint replacement (TJR) in patients with hallux rigidus. Minimum duration of followup was 18 months. MATERIAL AND METHODS The study included fifty-nine patients who underwent surgery at our Department due to hallux rigidus between January 2013 and December 2014. Thirty-seven patients underwent cheilectomy and twenty-two patients had total joint arthroplasty using METIS®...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28931996/a-modified-seated-side-tapping-test-in-which-the-arms-are-crossed-also-reflects-gait-function-in-community-dwelling-elderly
#3
Satoshi Fuchioka, Akira Iwata, Yumi Higuchi, Mari Miyake, Seiji Kanda, Toshimasa Nishiyama
[Purpose] Seated side tapping test (SST) performance is associated with mobility impairment in the elderly. Although this test was developed to assess trunk function, interpretation of its results may be confounded by the upper-limb movements in its protocol. Here, this study aimed to validate the association between trunk function and gait function by means of the Arms Crossed SST (AC-SST), a modified version of the SST in which the arms are crossed over the chest, to exclude the effects of the upper limbs...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28927894/freezing-related-perception-deficits-of-asymmetrical-walking-in-parkinson-s-disease
#4
Esther M J Bekkers, Wouter Hoogkamer, Aniek Bengevoord, Elke Heremans, Sabine M P Verschueren, Alice Nieuwboer
Patients with Parkinson's disease (PD), and especially those with freezing of gait (FOG), are known to experience impairments in gait rhythmicity, symmetry, and bilateral coordination between both legs. In the current study, we investigated whether deficits in perception of gait speed between limbs were more pronounced in freezers than in non-freezers and could explain some of these gait impairments. We also assessed cognitive ability and proprioception. Twenty-five PD patients (13 freezers, 12 non-freezers) and 12 healthy controls walked on a split-belt treadmill, while the speed of one of the belts was gradually increased...
September 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28923172/handgrip-strength-is-associated-with-but-poorly-predicts-disability-in-older-women-with-acute-low-back-pain-a-12-month-follow-up-study
#5
Diogo Carvalho Felício, Juliano Bergamaschine Mata Diz, Daniele Sirineu Pereira, Bárbara Zille de Queiroz, Juscélio Pereira de Silva, Bruno de Souza Moreira, Vinícius Cunha Oliveira, Leani Souza Máximo Pereira
BACKGROUND: Older women with low back pain (LBP) constitute a special subpopulation at risk of severe and permanent disability. It is important to identify factors limiting functionality in this population in order to reduce costs and improve both prevention and intervention. Handgrip strength (HGS) is a biomarker of aging associated with several adverse health outcomes, but long-term associations with disability in older patients with LBP are not known. OBJECTIVE: To examine whether HGS predicts disability in older women with acute low back pain (LBP)...
October 2017: Maturitas
https://www.readbyqxmd.com/read/28919121/the-utility-of-instrumented-dual-task-gait-and-tablet-based-neurocognitive-measurements-after-concussion
#6
David R Howell, Alexandra Stillman, Thomas A Buckley, Brant Berkstresser, Francis Wang, William P Meehan
OBJECTIVES: Quantitative and non-invasive measurements acquired by neurocognitive or gait evaluations are useful concussion management components. Emerging technology has allowed for the development of portable and objective tests which may be potentially useful across many settings where evaluations take place. Our aim was to examine the association between instrumented dual-task gait and tablet-based neurocognitive outcome variables with an acute concussion. DESIGN: A total of 59 collegiate athletes were identified and tested within 5days of concussion (n=18, 50% female, 20±1years of age) or as a part of a baseline examination (n=41, 29% female, 19±1years of age)...
August 16, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919103/alterations-of-musculoskeletal-models-for-a-more-accurate-estimation-of-lower-limb-joint-contact-forces-during-normal-gait-a-systematic-review
#7
REVIEW
F Moissenet, L Modenese, R Dumas
Musculoskeletal modelling is a methodology used to investigate joint contact forces during a movement. High accuracy in the estimation of the hip or knee joint contact forces can be obtained with subject-specific models. However, construction of subject-specific models remains time consuming and expensive. The purpose of this systematic review of the literature was to identify what alterations can be made on generic (i.e. literature-based, without any subject-specific measurement other than body size and weight) musculoskeletal models to obtain a better estimation of the joint contact forces...
September 1, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28918597/effect-of-vibration-on-postural-control-and-gait-of-elderly-subjects-a-systematic-review
#8
REVIEW
Atefeh Aboutorabi, Mokhtar Arazpour, Mahmood Bahramizadeh, Farzam Farahmand, Reza Fadayevatan
BACKGROUND AND AIM: Gait and balance disorders are common in the elderly populations, and their prevalence increases with age. This systematic review was performed to summarize the current evidence for subthreshold vibration interventions on postural control and gait in elderly. METHOD: A review of intervention studies including the following words in the title/abstract: insole, foot and ankle appliances, vibration, noise and elderly related to balance and gait...
September 16, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28910754/a-phase-variable-approach-for-imu-based-locomotion-activity-recognition
#9
Harrison L Bartlett, Michael Goldfarb
OBJECTIVE: This paper describes a gait classification method which utilizes measured motion of the thigh segment provided by an inertial measurement unit (IMU). METHODS: The classification method employs a phase-variable description of gait, and identifies a given activity based on the expected curvature characteristics of that activity over a gait cycle. The classification method was tested in experiments conducted with seven healthy subjects performing three different locomotor activities: level ground walking, stair descent, and stair ascent...
September 8, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28910314/the-variability-of-the-steps-preceding-obstacle-avoidance-approach-phase-is-dependent-on-the-height-of-the-obstacle-in-people-with-parkinson-s-disease
#10
Lucas Simieli, Lilian Teresa Bucken Gobbi, Diego Orcioli-Silva, Victor Spiandor Beretta, Paulo Cezar Rocha Santos, André Macari Baptista, Fabio Augusto Barbieri
Gait variability may serve as a sensitive and clinically relevant parameter to quantify adjustments in walking and the changes with aging and neurological disease. Variability of steps preceding obstacle avoidance (approach phase) are important for efficiency in the task, especially in people with Parkinson's disease (PD). However, variability of gait during the approach phase to obstacle avoidance in people with PD has been rarely reported, particularly when ambulating obstacles of different heights. The aim of the present study was to investigate the effects of obstacle height on step-to-step variability (step-to-step variability provides information on the variation between the "equivalent steps" for all trials, and walking variability (indicates the within-step variability of each, providing information about the modulations between the steps performed...
2017: PloS One
https://www.readbyqxmd.com/read/28906203/the-relation-between-total-cerebral-small-vessel-disease-burden-and-gait-impairment-in-patients-with-minor-stroke
#11
Caroline Mj Loos, Caroline McHutchison, Vera Cvoro, Stephen Dj Makin, Julie Staals, Francesca Chappell, Martin S Dennis, Robert J van Oostenbrugge, Joanna M Wardlaw
Background and aims Individual MRI markers of cerebral small vessel disease are associated with gait impairment. The impact of total cerebral small vessel disease-related brain damage, expressed by a cerebral small vessel disease MRI burden score, on mobility after stroke, has not been considered, although this score gives a better representation of the overall effect of cerebral small vessel disease on the brain. We determined if the total cerebral small vessel disease burden is associated with gait impairment three years after minor stroke...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28903771/novel-spatiotemporal-analysis-of-gait-changes-in-body-weight-supported-treadmill-trained-rats-following-cervical-spinal-cord-injury
#12
Nathan D Neckel
BACKGROUND: Common gait measures such as stride length, cycle time, and step height are not independent variables, but different aspects of the same multidimensional step. This complicates comparisons between experimental groups. Here we present a novel multidimensional gait analysis method and use this method to assess the ability of body weight supported treadmill training (BWSTT) to improve rodent stepping after spinal cord injury (SCI). METHODS: In lieu of reducing a step to a collection of gait measures and comparing the means of several of these, we developed a multidimensional analysis technique that compares the step as a whole...
September 13, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28902805/the-effect-of-hearing-aids-and-cochlear-implants-on-balance-during-gait
#13
Tyler S Weaver, Corey S Shayman, Timothy E Hullar
HYPOTHESIS: Auditory input in people with hearing impairment will improve balance while walking. BACKGROUND: Auditory input is increasingly recognized as an additional input for balance. Several studies have found auditory cues to improve static balance measured on a sway platform. The effect of audition on gait, a dynamic task also linked to fall risk, has not been fully examined. If a positive effect were shown between audition and balance, it would further indicate that improving hearing could also improve balance...
October 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28901667/variables-affecting-the-manifestation-of-and-intensity-of-pacing-behavior-a-preliminary-case-study-in-zoo-housed-polar-bears
#14
Isabelle T Cless, Kristen E Lukas
High-speed video analysis was used to quantify two aspects of gait in 10 zoo-housed polar bears. These two variables were then examined as to how they differed in the conditions of pacing versus locomoting for each bear. Percent difference calculations measured the difference between pacing and locomoting data for each bear. We inferred that the higher the percent difference between pacing and locomoting in a given subject, the more intense the pacing may be. The percent difference values were analyzed alongside caregiver survey data defining the locations, frequency, and anticipatory nature of pacing in each bear, as well as each bear's age and sex, to determine whether any variables were correlated...
September 13, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28900414/alterations-in-spectral-attributes-of-surface-electromyograms-after-utilization-of-a-foot-drop-stimulator-during-post-stroke-gait
#15
Rakesh Pilkar, Arvind Ramanujam, Karen J Nolan
BACKGROUND: A foot drop stimulator (FDS) is a rehabilitation intervention that stimulates the common peroneal nerve to facilitate ankle dorsiflexion at the appropriate time during post-stroke hemiplegic gait. Time-frequency analysis (TFA) of non-stationary surface electromyograms (EMG) and spectral variables such as instantaneous mean frequency (IMNF) can provide valuable information on the long-term effects of FDS intervention in terms of changes in the motor unit (MU) recruitment during gait, secondary to improved dorsiflexion...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28899662/baseline-association-of-motoric-cognitive-risk-syndrome-with-sustained-attention-memory-and-global-cognition
#16
Fiachra J Maguire, Isabelle Killane, Andrew P Creagh, Orna Donoghue, Rose Anne Kenny, Richard B Reilly
OBJECTIVES: Slow gait has been shown to be a good predictor of declining cognitive function in healthy older adults. Motoric cognitive risk (MCR) syndrome is a new construct incorporating slow gait and subjective cognitive complaints in individuals without dementia who have preserved activities of daily living. This analysis investigated the prevalence of MCR and factors associated with MCR in a nationally representative population. In addition, cross-sectional associations between MCR and cognitive domains, an relationship yet to be fully elucidated in literature, was investigated...
September 9, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28895909/measurement-of-walking-ground-reactions-in-real-life-environments-a-systematic-review-of-techniques-and-technologies
#17
REVIEW
Erfan Shahabpoor, Aleksandar Pavic
Monitoring natural human gait in real-life environments is essential in many applications, including quantification of disease progression, monitoring the effects of treatment, and monitoring alteration of performance biomarkers in professional sports. Nevertheless, developing reliable and practical techniques and technologies necessary for continuous real-life monitoring of gait is still an open challenge. A systematic review of English-language articles from scientific databases including Scopus, ScienceDirect, Pubmed, IEEE Xplore, EBSCO and MEDLINE were carried out to analyse the 'accuracy' and 'practicality' of the current techniques and technologies for quantitative measurement of the tri-axial walking ground reactions outside the laboratory environment, and to highlight their strengths and shortcomings...
September 12, 2017: Sensors
https://www.readbyqxmd.com/read/28895490/the-association-between-dual-task-gait-after-concussion-and-prolonged-symptom-duration
#18
David Robert Howell, Anna Brilliant, Brant Berkstresser, Francis Wang, Joana Fraser, William Meehan
Quantitative gait measurements can identify persistent post-concussion impairments. However, their prognostic utility after injury to identify the likelihood of prolonged concussion symptoms remains unknown. Our objective was to examine if dual-task gait performance measures are independently associated with persistent (> 28 days) concussion symptoms among a sample of athletes. Sixty individuals diagnosed with a sport-related concussion were assessed within 10 days of their injury. Each participant completed a post-concussion symptom scale, injury history questionnaire, and a single/dual-task gait examination...
September 12, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28892671/kinematic-and-kinetic-gait-deviations-in-males-long-after-anterior-cruciate-ligament-reconstruction
#19
Giovanni Milandri, Mike Posthumus, T J Small, Adam Bothma, Willem van der Merwe, Reshma Kassanjee, Sudesh Sivarasu
BACKGROUND: Biomechanical deviations long (approx. 5years) after anterior cruciate ligament reconstruction have not been quantified in males, despite their distinct risk profile as compared to females. These deviations can indicate altered joint loading during chronic, repetitive motions. METHODS: Cross-sectional study, comparing kinematic and kinetic variables between 15 male anterior cruciate ligament reconstructed patients and 15 healthy controls. During walking and running gait, measurements were taken of impact dynamics, knee and hip sagittal plane angles and moments, and knee varus angles and adduction moments...
July 29, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28892670/the-influence-of-sex-and-obesity-on-gait-biomechanics-in-people-with-severe-knee-osteoarthritis-scheduled-for-arthroplasty
#20
K L Paterson, L Sosdian, R S Hinman, T V Wrigley, J Kasza, M Dowsey, P Choong, K L Bennell
BACKGROUND: Sex and body mass may influence knee biomechanics associated with poor total knee arthroplasty (TKA) outcomes for knee osteoarthritis (OA). This study aimed to determine if gait differed between men and women, and overweight and class I obese patients with severe knee OA awaiting TKA. METHODS: 34 patients with severe knee OA (average age 70.0 (SD 7.2) years, body mass index 30.3 (4.1kg/m(2))) were recruited from a TKA waiting list. Three-dimensional gait analysis was performed at self-selected walking speed...
September 5, 2017: Clinical Biomechanics
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