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https://www.readbyqxmd.com/read/29339776/the-experience-of-spasticity-after-spinal-cord-injury-perceived-characteristics-and-impact-on-daily-life
#1
William Barry McKay, William Mark Sweatman, Edelle C Field-Fote
STUDY DESIGN: Cross-sectional survey. OBJECTIVES: Determine the impact of motor control characteristics attributed to spasticity, such as spasms, stiffness, and clonus on the daily life of people with spinal cord injury (SCI). SETTING: Nationwide, United States. METHODS: Internet-administered questionnaire, the Patient Reported Impact of Spasticity Measure (PRISM) and items describing characteristics of spasticity including stiffness, spasms, clonus, and pain...
January 16, 2018: Spinal Cord
https://www.readbyqxmd.com/read/29327169/passive-stiffness-of-monoarticular-lower-leg-muscles-is-influenced-by-knee-joint-angle
#2
Filiz Ateş, Ricardo J Andrade, Sandro R Freitas, François Hug, Lilian Lacourpaille, Raphael Gross, Can A Yucesoy, Antoine Nordez
PURPOSE: While several studies demonstrated the occurrence of intermuscular mechanical interactions, the physiological significance of these interactions remains a matter of debate. The purpose of this study was to quantify the localized changes in the shear modulus of the gastrocnemius lateralis (GL), monoarticular dorsi- and plantar-flexor muscles induced by a change in knee angle. METHOD: Participants underwent slow passive ankle rotations at the following two knee positions: knee flexed at 90° and knee fully extended...
January 11, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29286882/acute-effects-of-static-stretching-on-passive-stiffness-and-postural-balance-in-healthy-elderly-men
#3
Ty B Palmer, Chinonye C Agu-Udemba, Bailey M Palmer
OBJECTIVES: This study aimed to examine the acute effects of straight-leg raise (SLR) static stretching on passive stiffness and postural balance in healthy, elderly men. An additional aim of this study was to examine the relationships between stiffness and balance at baseline (prior to stretching) and the relationships between the stretch-induced changes in these variables. METHODS: Eleven elderly men (age = 69 ± 6 years; height = 177 ± 7 cm; mass = 83 ± 13 kg) underwent postural balance and passive stiffness assessments before and after: 1) a stretching treatment consisting of four, 15-s SLR static stretches performed by the primary investigator and 2) a control treatment consisting of no static stretching...
December 30, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29282340/-from-involuntary-movements-to-movement-disorders
#4
Toshio Fukutake
Apart from the term 'involuntary movements', the term 'movement disorders' encompasses not only classical hyperkinesias but also hypokinesias including catalepsy or apraxia. It enables us to understand abnormal movements by their phenomena instead of by their localization. To advance the grasping of movement disorders, we discuss the clinical and pathophysiological features of abnormal movements in catatonia/catalepsy, anti-NMDAR encephalitis, paroxysmal dyskinesias, stiff person/leg syndrome, corticobasal degeneration/syndrome, and hysteria...
December 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29282138/the-medial-femoral-wall-can-play-a-more-important-role-in-unstable-intertrochanteric-fractures-compared-with-lateral-femoral-wall-a-biomechanical-study
#5
Boyuan Nie, Xueying Chen, Jing Li, Dou Wu, Qiang Liu
BACKGROUND: The major objective of the present study is to investigate the differences in the load and strain changes in the intertrochanteric region of human cadaveric femora between the loss of medial or lateral wall and after treatment with proximal femoral nail antirotation (PFNA). METHODS: After measuring the geometry of the proximal femur region and modeling the medial or lateral wall defect femoral models, six pairs of freshly frozen human femora were randomly assigned in the medial or lateral wall group...
December 28, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29260403/bilateral-deficit-of-spring-like-behaviour-during-hopping-in-sprinters
#6
Mitsuo Otsuka, Toshiyuki Kurihara, Tadao Isaka
PURPOSE: Unilateral leg stiffness is a key contributor to sprint running speed, thereby great bilateral deficit (BLD) of leg stiffness would be expected to be observed in sprinters. However, it remains clear only BLD of leg stiffness at the preferred hopping frequency in non-sprinters. The purpose of this study was to clarify the BLD of spring-like behaviour in hopping at various frequencies and the effect of chronic adaptation via sprint running experience on BLD during the hopping. METHODS: Fifteen male experienced sprinters and 12 male novices participated in this study...
December 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29241713/effects-of-superficial-heating-and-insulation-on-walking-speed-in-people-with-hereditary-and-spontaneous-spastic-paraparesis-a-randomised-crossover-study
#7
Amanda L Denton, Alan D Hough, Jennifer A Freeman, Jonathan F Marsden
OBJECTIVES: Cooling of the lower limb in people with Hereditary and Spontaneous Spastic Paraparesis (pwHSSP) has been shown to affect walking speed and neuromuscular impairments. The investigation of practical strategies, which may help to alleviate these problems is important. The potential of superficial heat to improve walking speed has not been explored in pwHSSP. Primary objective was to explore whether the application of superficial heat (hot packs) to lower limbs in pwHSSP improves walking speed...
December 11, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29202673/enzootic-calcinosis-in-horses-grazing-solanum-glaucophyllum-in-argentina
#8
Ernesto R Odriozola, Alejandro M Rodríguez, Juan F Micheloud, Germán J Cantón, Rubén D Caffarena, Eduardo J Gimeno, José J Bodega, Pedro Gardey, Fortunato B Iseas, Federico Giannitti
Solanum glaucophyllum, a toxic plant known for its calcinogenic effects, causes enzootic calcinosis in ruminant and monogastric animals. We describe an outbreak of enzootic calcinosis that occurred in a herd of 110 horses grazing pastureland heavily contaminated with S. glaucophyllum in Buenos Aires province, Argentina. Ten horses developed clinical signs, and 6 horses died. Clinical signs included abnormal gait (stiff-legged action, short strides), stiffness, thoracolumbar kyphosis, reluctance to move, wide stance, chronic weight loss, weakness, recumbency, and difficulty standing...
December 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29201601/a-tracked-robot-with-novel-bio-inspired-passive-legs
#9
Bo Sun, Xingjian Jing
For track-based robots, an important aspect is the suppression design, which determines the trafficability and comfort of the whole system. The trafficability limits the robot's working capability, and the riding comfort limits the robot's working effectiveness, especially with some sensitive instruments mounted on or operated. To these aims, a track-based robot equipped with a novel passive bio-inspired suspension is designed and studied systematically in this paper. Animal or insects have very special leg or limb structures which are good for motion control and adaptable to different environments...
2017: Robotics and Biomimetics
https://www.readbyqxmd.com/read/29190853/contributions-of-hamstring-stiffness-to-straight-leg-raise-and-sit-and-reach-test-scores
#10
Naokazu Miyamoto, Kosuke Hirata, Noriko Kimura, Eri Miyamoto-Mikami
The passive straight-leg-raise (PSLR) and the sit-and-reach (SR) tests have been widely used to assess hamstring extensibility. However, it remains unclear to what extent hamstring stiffness (a measure of material properties) contributes to PSLR and SR test scores. Therefore, we aimed to clarify the relationship between hamstring stiffness and PSLR and SR scores using ultrasound shear wave elastography. Ninety-eight healthy subjects completed the study. Each subject completed PSLR testing, and classic and modified SR testing of the right leg...
November 30, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29188336/no-risk-of-arthrofibrosis-after-acute-anterior-cruciate-ligament-reconstruction
#11
Karl Eriksson, Christoffer von Essen, Sven Jönhagen, Björn Barenius
PURPOSE: To compare acute ACL reconstruction (ACLR) within 8 days of injury with delayed reconstruction after normalized range of motion (ROM), 6-10 weeks after injury. It was hypothesized that acute ACL reconstruction with modern techniques is safe and can be beneficial in terms of patient-reported outcomes and range of motion. METHODS: Sample size calculation indicated 64 patients would be required to find a 5° difference in ROM at 3 months. Seventy patients with high recreational activity level, Tegner level 6 or more, were randomized to acute (within 8 days) or delayed (6-10 weeks) ACLR between 2006 and 2013...
November 29, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29184756/balance-control-during-gait-initiation-state-of-the-art-and-research-perspectives
#12
REVIEW
Eric Yiou, Teddy Caderby, Arnaud Delafontaine, Paul Fourcade, Jean-Louis Honeine
It is well known that balance control is affected by aging, neurological and orthopedic conditions. Poor balance control during gait and postural maintenance are associated with disability, falls and increased mortality. Gait initiation - the transient period between the quiet standing posture and steady state walking - is a functional task that is classically used in the literature to investigate how the central nervous system (CNS) controls balance during a whole-body movement involving change in the base of support dimensions and center of mass progression...
November 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29182434/reactive-strength-index-a-poor-indicator-of-reactive-strength
#13
Robin Healy, Ian Kenny, Drew Harrison
PURPOSE: The primary aim was to assess the relationships between reactive strength measures and associated kinematic and kinetic performance variables achieved during drop jumps. A secondary aim was to highlight issues with the use of reactive strength measures as performance indicators. METHODS: Twenty eight national and international level sprinters, consisting of fourteen men and women, participated in this cross-sectional analysis. Athletes performed drop jumps from a 0...
November 28, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29182092/preliminary-assessment-of-a-compliant-gait-exoskeleton
#14
Manuel Cestari, Daniel Sanz-Merodio, Elena Garcia
Current commercial wearable gait exoskeletons contain joints with stiff actuators that cannot adapt to unpredictable environments. These actuators consume a significant amount of energy, and their stiffness may not be appropriate for safe human-machine interactions. Adjustable compliant actuators are being designed and implemented because of their ability to minimize large forces due to shocks, to safely interact with the user, and to store and release energy in passive elastic elements. Introduction of such compliant actuation in gait exoskeletons, however, has been limited by the larger power-to-weight and volume ratio requirement...
June 2017: Soft Robotics
https://www.readbyqxmd.com/read/29176383/effect-of-jump-interval-training-on-kinematics-of-the-lower-limbs-and-running-economy
#15
Jonathan Ache-Dias, Juliano Dal Pupo, Rodolfo A Dellagrana, Anderson S Teixeira, Luis Mochizuki, Antônio R P Moro
This study analyzed the effects of the addition of jump interval training (JIT) to continuous endurance training (40-min running at 70% of peak aerobic velocity, three times per week for four weeks) on kinematic variables and running economy (RE) during submaximal constant-load running. Eighteen recreational runners, randomized into control (CG) or experimental (EG) groups performed the endurance training. In addition, the EG performed the JIT twice per week, which consisted of four to six bouts of continuous vertical jumping (30s) with five-minute intervals...
November 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29166984/a-comparison-of-musculo-articular-stiffness-and-maximal-isometric-plantar-flexion-and-knee-extension-force-in-dancers-and-untrained-individuals
#16
Paige E Rice, Herman van Werkhoven, Denzel J Dejournette, Reed D Gurchiek, John W Mackall, Jeffrey M McBride
Dance involves a high volume of aesthetic, stretch-shortening cycle (SSC) actions, which may cause unique adaptations to performance. The strength dancers possess to withstand such frequency of SSCs remains elusive. The extensive training that dancers experience from a young age, however, yields anatomical and strength development that may contrast with that of untrained individuals. Therefore, the purpose of this study was to investigate differences in musculo-articular stiffness and maximal isometric plantar flexion and knee extension force between dancers and untrained individuals...
December 15, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/29146151/a-new-two-component-compression-system-turning-an-elastic-bandage-into-an-inelastic-compression-device-interface-pressure-stiffness-and-haemodynamic-effectiveness
#17
Giovanni Mosti, Hugo Partsch
INTRODUCTION: Bandage application does not exert consistent compression pressure, leading to extremely variable compression when applied to patients. A new elastic bandage can exert a predefined pressure independently of healthcare providers and the size of the wrapped limb. The bandage system includes a series of non-stretchable patches that when applied to the bandage make it stiff. The aim of this work was to assess, in an experimental setting, the venous ejection fraction (EF) from the lower leg and the tolerability of this new bandage in a group of patients affected by superficial venous incompetence...
November 13, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29143379/region-dependent-hamstrings-activity-in-nordic-hamstring-exercise-and-stiff-leg-deadlift-defined-with-high-density-emg
#18
András Hegyi, Annamária Péter, Taija Finni, Neil J Cronin
Recent studies suggest region-specific metabolic activity in hamstring muscles during injury prevention exercises, but the neural representation of this phenomenon is unknown. The aim of this study was to examine whether regional differences are evident in the activity of biceps femoris long head (BFlh) and semitendinosus (ST) muscles during two common injury prevention exercises. Twelve male participants without a history of hamstring injury performed the Nordic hamstring exercise (NHE) and stiff-leg deadlift (SDL) while BFlh and ST activity were recorded with high-density electromyography (HD-EMG)...
November 15, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29131753/effectiveness-of-compression-bandaging-education-for-wound-care-nurses
#19
D Tidhar, E Keren, G Brandin, M Yogev, J M Armer
OBJECTIVE: Compression bandaging is an essential component in the treatment of venous leg ulcers (VLUs). An adequate pressure and stiffness is needed in order for the treatment to be successful. The aim of this study was to evaluate the effectiveness of a training workshop on compression bandaging among wound care nurses who had no previous experience in application of compression bandages, immediately post-training and six months after training. METHOD: A quasi-experimental design, conducted at Maccabi Healthcare Services, in which nurses underwent a four-hour educational session, including practising with a device that measures sub-bandage pressure...
November 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/29097056/a-community-based-bionic-leg-rehabilitation-program-for-patients-with-chronic-stroke-clinical-trial-protocol
#20
Amy Wright, Keeron Stone, Danielle Lambrick, Simon Fryer, Lee Stoner, Edward Tasker, Simon Jobson, Grace Smith, John Batten, Jo Batey, Vicky Hudson, Helen Hobbs, James Faulkner
Stroke is a major global health problem whereby many survivors have unmet needs concerning mobility during recovery. As such, the use of robotic-assisted devices (i.e., a bionic leg) within a community setting may be an important adjunct to normal physiotherapy in chronic stroke survivors. This study will be a dual-center, randomized, parallel group clinical trial to investigate the impact of a community-based training program using a bionic leg on biomechanical, cardiovascular, and functional outcomes in stroke survivors...
October 30, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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