keyword
MENU ▼
Read by QxMD icon Read
search

Muscle fatigue postural control

keyword
https://www.readbyqxmd.com/read/29692699/a-control-scheme-that-uses-dynamic-postural-synergies-to-coordinate-a-hybrid-walking-neuroprosthesis-theory-and-experiments
#1
Naji A Alibeji, Vahidreza Molazadeh, Brad E Dicianno, Nitin Sharma
A hybrid walking neuroprosthesis that combines functional electrical stimulation (FES) with a powered lower limb exoskeleton can be used to restore walking in persons with paraplegia. It provides therapeutic benefits of FES and torque reliability of the powered exoskeleton. Moreover, by harnessing metabolic power of muscles via FES, the hybrid combination has a potential to lower power consumption and reduce actuator size in the powered exoskeleton. Its control design, however, must overcome the challenges of actuator redundancy due to the combined use of FES and electric motor...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29648891/muscular-and-vascular-issues-induced-by-prolonged-standing-with-different-work-rest-cycles-with-active-or-passive-breaks
#2
Maria-Gabriela Garcia, Thomas Läubli, Bernard J Martin
OBJECTIVE: The aim of this study was to evaluate the long-lasting motor, behavioral, physiological, and perceptual effects of prolonged standing work in three work-rest cycle conditions including passive or active rest breaks. BACKGROUND: Muscle fatigue has been evidenced after prolonged standing work through physiological and neuromotor measures. It has been postulated that muscle fatigue induced by prolonged work could be attenuated by appropriate scheduling of work and rest periods...
April 1, 2018: Human Factors
https://www.readbyqxmd.com/read/29413452/the-effects-of-short-term-and-long-term-experiences-on-co-contraction-of-lower-extremity-postural-control-muscles-during-continuous-multi-directional-support-surface-perturbations
#3
Alison Schinkel-Ivy, Carolyn A Duncan
While reactive balance control in response to single perturbations in quiet standing is relatively well understood, some occupational environments (e.g. maritime environments) expose workers to continuous, multi-directional challenges to balance and postural control, which require workers to respond to the current perturbation, as well as anticipate coming perturbations. Investigation of muscle activation patterns during continuous, multi-directional perturbations, and the role of previous experience, is warranted to better understand postural control strategies in these types of environments...
April 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29249141/effect-of-textured-insoles-on-postural-control-during-static-upright-posture-following-lower-limb-muscle-fatigue
#4
Francesco Palazzo, Alessandra Nardi, Virginia Tancredi, Alfio Caronti, Gianpaolo Scalia Tomba, Pietro Lebone, Elvira Padua, Giuseppe Annino
BACKGROUND: The purpose of this study was to assess the effects of textured insoles on static upright posture before and after lower limb muscle fatigue. Textured insoles used contained small and non-deformable pebbles of various sizes that are able to stimulate a major number of mechanoreceptors. It was inserted inside footwear. METHODS: Ten healthy young adults participated in the study (mean age 26.1 ± 3.07 years). They were asked to stand on a force platform in four sensory states: vision, no vision, with and without natural plantar stimulation...
December 15, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29216267/altered-postural-sway-following-fatiguing-foot-muscle-exercises
#5
Keiji Koyama, Junichiro Yamauchi
This study investigated the acute effects of fatiguing foot muscle exercises on the maximum muscle strength of the foot and postural control ability. Eighteen healthy young individuals performed fatiguing foot muscle strength exercises, and their toe flexor and ankle plantar flexor strength and postural control ability were measured before and after the exercises. Postural control ability was evaluated using the path of the center of pressure (COP) during three balance tasks: double-leg standing with eyes open; double-leg standing with eyes closed; and single-leg standing with eyes open...
2017: PloS One
https://www.readbyqxmd.com/read/29121507/the-effects-of-trunk-extensor-and-abdominal-muscle-fatigue-on-postural-control-and-trunk-proprioception-in-young-healthy-individuals
#6
Dennis J Larson, Stephen H M Brown
The purpose of this study was to induce both trunk extensor and abdominal muscle fatigue, on separate occasions, and compare their effects on standing postural control and trunk proprioception, as well as look at the effects of a recovery period on these outcome measures. A total of 20 individuals participated, with 10 (5 males and 5 females) completing either a standing postural control or lumbar axial repositioning protocol. Participants completed their randomly assigned protocol on two occasions, separated by at least 4  days, with either their trunk extensor or abdominal muscles being fatigued on either day...
February 2018: Human Movement Science
https://www.readbyqxmd.com/read/28946576/the-effects-of-mat-pilates-and-reformer-pilates-in-patients-with-multiple-sclerosis-a-randomized-controlled-study
#7
I Bulguroglu, A Guclu-Gunduz, G Yazici, C Ozkul, C Irkec, B Nazliel, H Z Batur-Caglayan
BACKGROUND: Pilates is an exercise method which increases strength and endurance of core muscles and improves flexibility, dynamic postural control and balance. OBJECTIVE: To analyze and compare the effects of Mat and Reformer Pilates methods in Patients with Multiple Sclerosis (MS). METHODS: Thirty-eight patients with MS were included in the study. Participants were randomly divided into 3 groups as Mat Pilates, Reformer Pilates and control groups...
2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28885964/cervical-joint-position-sense-in-hypobaric-conditions-a-randomized-double-blind-controlled-trial
#8
Diana Bagaianu, Damien Van Tiggelen, N Duvigneaud, Veerle Stevens, Danny Schroyen, Dirk Vissenaeken, Gino D'Hondt, Laurent Pitance
Well-adapted motor actions require intact and well-integrated information from all of the sensory systems, specifically the visual, vestibular, and somatosensory systems, including proprioception. Proprioception is involved in the sensorimotor control by providing the central nervous system with an updated body schema of the biomechanical and spatial properties of the body parts. With regard to the cervical spine, proprioceptive information from joint and muscle mechanoreceptors is integrated with vestibular and visual feedback to control head position, head orientation, and whole body posture...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28880935/post-fatigue-recovery-of-power-postural-control-and-physical-function-in-older-women
#9
RANDOMIZED CONTROLLED TRIAL
Stephen A Foulis, Stephanie L Jones, Richard E van Emmerik, Jane A Kent
Low muscle power, particularly at high velocities, has been linked to poor physical function in older adults. Any loss in muscle power following fatiguing exercise or daily activities could impact physical function and postural control until power has fully recovered. To test the overall hypothesis that a common task such as walking can result in prolonged power loss and decreased physical function and balance, 17 healthy older (66-81 years) women completed a 32-min walking test (32MWT) designed to induce neuromuscular fatigue, followed by 60min of recovery (60R)...
2017: PloS One
https://www.readbyqxmd.com/read/28869638/evaluation-of-the-accuracy-of-the-postural-stability-measurement-with-the-y-balance-test-based-on-the-levels-of-the-biomechanical-parameters
#10
Robert Walaszek, Wiesław Chwała, Katarzyna Walaszek, Marcin Burdacki, Jarosław Błaszczuk
PURPOSE: The study of dynamic balance involves tests that assess the muscle control of spatial changes of the position of the centre of gravity over the base of support. The purpose of this work was to determine the structure of the Y-balance test and its accuracy based on the measurements of strength performance of the muscles acting on the knee joint as well as the flexibility and balance in boys aged 14 years. METHODS: The study included 43 schoolboys regularly participating in physical education lessons...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/28616033/exercise-induced-muscle-fatigue-in-the-unaffected-knee-joint-and-its-influence-on-postural-control-and-lower-limb-kinematics-in-stroke-patients
#11
Sun Wook Park, Sung Min Son, Na Kyung Lee
This study aimed to investigate the effects of exercise-induced muscle fatigue in the unaffected knee joint on postural control and kinematic changes in stroke patients. Forty participants (20 stroke patients, 20 age-matched healthy participants) were recruited. To induce fatigue, maximum voluntary isometric contractions were performed in the unaffected knee joint in a Leg Extension Rehab exercise machine using the pneumatic resistance. We measured static and dynamic balance and lower-limb kinematics during gait...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28431150/the-natural-history-of-children-with-joint-hypermobility-syndrome-and-ehlers-danlos-hypermobility-type-a-longitudinal-cohort-study
#12
Mark C Scheper, Lesley L Nicholson, Roger D Adams, Louise Tofts, Verity Pacey
Objectives: The objective of the manuscript was to describe the natural history of complaints and disability in children diagnosed with joint hypermobility syndrome (JHS)/Ehlers-Danlos-hypermobility type (EDS-HT) and to identify the constructs that underlie functional decline. Methods: One hundred and one JHS/EDS-HT children were observed over 3 years and assessed at three time points on the following: functional impairments, quality of life, connective tissue laxity, muscle function, postural control and musculoskeletal and multi-systemic complaints...
December 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28409515/effects-of-stretching-and-fatigue-on-peak-torque-muscle-imbalance-and-stability
#13
Pablo B Costa, Cassio V Ruas, Cory M Smith
BACKGROUND: The present study examined the acute effects of hamstrings stretching and fatigue on knee extension and flexion peak torque (PT), hamstrings to quadriceps (H:Q) ratio, and postural stability. METHODS: Seventeen women (mean ± SD age = 21.8 ± 2.1 yrs; body mass = 63.0 ± 10.5 kg; height = 164.7 ± 6.2 cm) and eighteen men (25.8 ± 4.6 yrs; 83.6 ± 13.2 kg; 175.3 ± 6.0 cm) took part in three laboratory visits. The first visit was a familiarization session, and the subsequent two visits were randomly assigned as a control or stretching condition...
April 13, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28323218/the-postural-control-can-be-optimized-by-the-first-movement-initiation-condition-encountered-when-submitted-to-muscle-fatigue
#14
Florian Monjo, Nicolas Forestier
We investigated whether and how the movement initiation condition (IC) encountered during the early movements performed following focal muscle fatigue affects the postural control of discrete ballistic movements. For this purpose, subjects performed shoulder flexions in a standing posture at maximal velocity under two movement IC, i.e., in self-paced conditions and submitted to a Stroop-like task in which participants had to trigger fast shoulder flexions at the presentation of incongruent colors. Shoulder flexion kinematics, surface muscle activity of focal and postural muscles as well as center-of-pressure kinematics were recorded...
March 18, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28215399/restoring-standing-capabilities-with-feedback-control-of-functional-neuromuscular-stimulation-following-spinal-cord-injury
#15
REVIEW
Raviraj Nataraj, Musa L Audu, Ronald J Triolo
This paper reviews the field of feedback control for neuroprosthesis systems that restore advanced standing function to individuals with spinal cord injury. Investigations into closed-loop control of standing by functional neuromuscular stimulation (FNS) have spanned three decades. The ultimate goal for FNS standing control systems is to facilitate hands free standing and enabling the user to perform manual functions at self-selected leaning positions. However, most clinical systems for home usage currently only provide basic upright standing using preprogrammed stimulation patterns...
April 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28050266/from-slow-to-fast-hypogravity-induced-remodeling-of-muscle-fiber-myosin-phenotype
#16
B S Shenkman
Skeletal muscle consists of different fiber types arranged in a mosaic pattern. These fiber types are characterized by specific functional properties. Slow-type fibers demonstrate a high level of fatigue resistance and prolonged contraction duration, but decreased maximum contraction force and velocity. Fast-type fibers demonstrate high contraction force and velocity, but profound fatigability. During the last decades, it has been discovered that all these properties are determined by the predominance of slow or fast myosin-heavy-chain (MyHC) isoforms...
October 2016: Acta Naturae
https://www.readbyqxmd.com/read/27895569/influence-of-lumbar-muscle-fatigue-on-trunk-adaptations-during-sudden-external-perturbations
#17
Jacques Abboud, François Nougarou, Arnaud Lardon, Claude Dugas, Martin Descarreaux
Introduction: When the spine is subjected to perturbations, neuromuscular responses such as reflex muscle contractions contribute to the overall balance control and spinal stabilization mechanisms. These responses are influenced by muscle fatigue, which has been shown to trigger changes in muscle recruitment patterns. Neuromuscular adaptations, e.g., attenuation of reflex activation and/or postural oscillations following repeated unexpected external perturbations, have also been described. However, the characterization of these adaptations still remains unclear...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27693989/a-hip-abduction-exercise-prior-to-prolonged-standing-increased-movement-while-reducing-cocontraction-and-low-back-pain-perception-in-those-initially-reporting-low-back-pain
#18
Daniel Viggiani, Jack P Callaghan
Persons who develop low back pain from prolonged standing exhibit increased muscle cocontraction, decreased movement and increased spine extension. However, it is unclear how these factors relate to pain development. The purpose of this study was to use hip abductor fatigue to manipulate muscle activity patterns and determine its effects on standing behaviours and pain development. Forty participants stood for two hours twice, once following a hip abductor fatigue exercise (fatigue), and once without exercise beforehand (control)...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27676759/impact-of-fatigue-on-postural-control-in-quiet-standing-in-fibromyalgia
#19
Jacques Vaillant, Perrine Revillet, Anne-Marie Sevenier, Robert Juvin
OBJECTIVE: Fibromyalgia fatigue was described as an overwhelming feeling of tiredness that is not relieved by sleep or rest and is often not in proportion to the effort realized. In fibromyalgia syndrome (FMS), the fatigue has an important functional impact, often limiting the activities of daily living, can induce a state of deconditioning, and causing disturbance of locomotion, whose reasons are not fully understood. The aims of this study was to evaluate the postural performance in quite standing of FMS patients, and to compare them to a control group, and to assess the influence on the posture of a fatigue induced by a short walk...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27567760/the-effects-of-mechanical-focal-vibration-on-walking-impairment-in-multiple-sclerosis-patients-a-randomized-double-blinded-vs-placebo-study
#20
RANDOMIZED CONTROLLED TRIAL
Emanuele Spina, Antonio Carotenuto, Maria Gabriella Aceto, Ilaria Cerillo, Francesco Silvestre, Francesco Arace, Paolo Paone, Giuseppe Orefice, Rosa Iodice
BACKGROUND: Multiple Sclerosis is a heterogeneous disorders involving in early stage gait and balance. Together with immunomodulating therapies, rehabilitation had a crucial role in improving motor tasks and quality of life. Between the emerging techniques, Focal Vibrations (FV) could play a role, but they have been used in MS only to reduce muscle tone and fatigue alone or together with botulinum toxin. OBJECTIVE: To assess whether FV is effective on walking impairment in a cohort of MS patients...
September 21, 2016: Restorative Neurology and Neuroscience
keyword
keyword
52748
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"