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https://www.readbyqxmd.com/read/28227652/does-the-impedance-of-above-knee-powered-prostheses-need-to-be-adjusted-for-load-carrying-conditions
#1
Andrea Brandt, Ming Liu, He Helen Huang, Andrea Brandt, Ming Liu, He Helen Huang, He Helen Huang, Ming Liu, Andrea Brandt
Powered knee prostheses provide substantial advantages for amputees compared to traditional passive devices during basic walking tasks (i.e. level-ground, stairs, ramps), but the impedance control parameters are fixed. For environments that differ from the well-controlled setting of the clinic, amputees must compensate their gait patterns because fixed control parameters ideal for walking on level ground in the clinic do not meet real-life task demands. Load carriage is one instance where fixed control parameters may lead to undesired gait patterns and potentially result in injury...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227235/split-belt-controllable-treadmill-with-differential-velocity-based-fall-stimulation-and-motion-analysis
#2
Yasutaka Nakashima, Hiroki Noutsuka, Takanori Fukui, Motoji Yamamoto, Yasutaka Nakashima, Hiroki Noutsuka, Takanori Fukui, Motoji Yamamoto, Takanori Fukui, Hiroki Noutsuka, Yasutaka Nakashima, Motoji Yamamoto
Amid trends toward aging populations in developed nations, the number of people requiring nursing care has increased markedly. Slips and falls during ordinary daily activities are a common cause of fractured bones and muscle injury. Several studies have analyzed the movements produced by artificially generated slip and fall stimuli, but few have investigated these stimuli. We analyzed lower-limb motion following a slip and fall stimulus produced using a pulled free-walking system consisting of a controllable split-belt treadmill, where a speed difference between the belts could be applied to produce a slipping motion...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226566/quantifying-the-human-robot-interaction-forces-between-a-lower-limb-exoskeleton-and-healthy-users
#3
Ashish Rathore, Matthew Wilcox, Dafne Zuleima Morgado Ramirez, Rui Loureiro, Tom Carlson, Ashish Rathore, Matthew Wilcox, Dafne Zuleima Morgado Ramirez, Rui Loureiro, Tom Carlson, Rui Loureiro, Matthew Wilcox, Ashish Rathore, Tom Carlson, Dafne Zuleima Morgado Ramirez
To counter the many disadvantages of prolonged wheelchair use, patients with spinal cord injuries (SCI) are beginning to turn towards robotic exoskeletons. However, we are currently unaware of the magnitude and distribution of forces acting between the user and the exoskeleton. This is a critical issue, as SCI patients have an increased susceptibility to skin lesions and pressure ulcer development. Therefore, we developed a real-time force measuring apparatus, which was placed at the physical human-robot interface (pHRI) of a lower limb robotic exoskeleton...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226429/postural-responses-after-utilization-of-a-computerized-biofeedback-based-intervention-aimed-at-improving-static-and-dynamic-balance-in-traumatic-brain-injury-a-case-study
#4
Rakesh Pilkar, Nibal Arzouni, Arvind Ramanujam, Kathleen Chervin, Karen J Nolan, Rakesh Pilkar, Nibal Arzouni, Arvind Ramanujam, Kathleen Chervin, Karen J Nolan, Arvind Ramanujam, Kathleen Chervin, Nibal Arzouni, Karen J Nolan, Rakesh Pilkar
Balance dysfunction is one of the most disabling aspects of Traumatic Brain Injury (TBI). Without rapid transmission and accurate perception of somatosensory inputs, the automatic postural responses required during standing may be delayed or absent after TBI which can lead to instability. Further, the sensitivity level to which environmental perturbations can be detected is also vital, as the central nervous system will only employ balance control strategies when it perceives a change in equilibrium. Such undetectable perturbations, however small they may be, can result in fatal falls, especially after TBI...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222578/the-effects-of-prevent-injury-and-enhance-performance-program-in-a-female-soccer-team
#5
Cristina Rodríguez, Soledad Echegoyen, Takeshi Aoyama
BACKGROUND: The purpose of this study is to evaluate the changes of muscle strength in lower limbs and knee valgus alignment using the Prevent Injury and Enhance Performance Program (PEP program) to prevent ACL injuries in female soccer players during an entire season. METHODS: A longitudinal and prospective study was done in twenty female soccer players at the Universidad Nacional Autónoma de México, from a senior team. During 24 weeks the training program was applied three times a week as a part of the team workouts...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28217986/the-effects-of-remote-ischemic-conditioning-in-patients-with-st-segment-elevation-myocardial-infarction-treated-with-primary-percutaneous-coronary-intervention-a-meta-analysis
#6
Jing Gao, Qingjie Chen, Fen Liu, Qian Zhao, Bangdang Chen, Yun Zhou, Qiang Zhao, Yitong Ma, Yining Yang
INTRODUCTION: Timely and successful reperfusion is effective at improving outcome in patients presenting with STEMI. However, abrupt restoration of blood flow may cause detrimental myocardial repercussion injury. Remote ischemic conditioning (RIC) is a potent activator of innate protection against ischemia-reperfusion injury. This study assessed remote ischemic conditioning in patients presenting with STEMI treated with primary PCI. EVIDENCE ACQUISITION: Relevant studies were identified through electronic literature search from PubMed, Medline, EMBASE, CNKI, WANFANG, and VIP...
February 17, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28217569/acl-injury-in-football-a-literature-overview-of-the-prevention-programs
#7
Gian Nicola Bisciotti, Karim Chamari, Emanuele Cena, Giulia Carimati, Piero Volpi
BACKGROUND: The ACL prevention programs are addressed to the control and/or modification of the so-called "modifiable risk factors". All these programs focus on different intervention strategies aimed to decrease the ACL injury risk, particularly in female athletes population. PURPOSE: To furnish an overview of the most used ACL injury prevention program through a narrative review. CONCLUSION: In literature there are many reports on prevention programs whose common denominator is the proper alignment of the lower limb joints and proper motor control during movements that are considered at risk for ACL integrity, as the landing phase after a jump...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28217417/biomechanical-differences-in-brazilian-jiu-jitsu-athletes-the-role-of-combat-style
#8
Pedro Olavo de Paula Lima, Alane Almeida Lima, Anita Camila Sampaio Coelho, Yuri Lopes Lima, Gabriel Peixoto Leão Almeida, Márcio Almeida Bezerra, Rodrigo Ribeiro de Oliveira
BACKGROUND: Brazilian Jiu-Jitsu (BJJ) athletes can be divided into two combat styles: pass fighters (PFs) and guard fighters (GFs). Flexibility of the posterior chain muscles is highly necessary in these athletes, especially in GFs. On the other hand, isometric strength of the trunk extensors is required in PFs. Handgrip strength is important in holding the kimono of the opponent, and symmetrical lower-limb strength is important for the prevention of injuries due to the overload caused by training...
February 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28210805/transcutaneous-carbon-dioxide-application-accelerates-muscle-injury-repair-in-rat-models
#9
Shiho Akahane, Yoshitada Sakai, Takeshi Ueha, Hanako Nishimoto, Miho Inoue, Takahiro Niikura, Ryosuke Kuroda
PURPOSE: Skeletal muscle injuries are commonly observed in sports and traumatology medicine. Previously, we demonstrated that transcutaneous application of carbon dioxide (CO2) to lower limbs increased the number of muscle mitochondria and promoted muscle endurance. Therefore, we aimed to investigate whether transcutaneous CO2 application could enhance recovery from muscle injury. METHODS: Tibialis anterior muscle damage was induced in 27 Sprague Dawley rats via intramuscular injection of bupivacaine...
February 16, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28210029/gender-related-differences-in-lower-limb-alignment-range-of-joint-motion-and-the-incidence-of-sports-injuries-in-japanese-university-athletes
#10
Yasuhiro Mitani
[Purpose] To investigate the gender-related differences in lower limb alignment, range of joint motion, and history of lower limb sports injuries in Japanese university athletes. [Subjects and Methods] The subjects were 224 Japanese university athletes (154 males and 70 females). The quadriceps angle (Q-angle), arch height index, and ranges of internal and external rotation of the hip joints were measured. History of lower limb sports injury was surveyed using a questionnaire. [Results] Females had a significantly higher Q-angle and hip joint internal rotation angle and a significantly lower arch height index than males...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28209569/injury-rates-in-recreational-tennis-players-do-not-differ-between-different-playing-surfaces
#11
Babette M Pluim, Benjamin Clarsen, Evert Verhagen
OBJECTIVE: The aim of this study was to determine whether there is a difference in the prevalence of tennis injuries between the four most common court surfaces in the Netherlands, including hard court, clay, sand-fill artificial grass and red-sand-fill artificial grass. Natural grass was not included in this study. METHODS: This was a repeated cross-sectional study over 6 months, involving members of the Royal Netherlands Lawn Tennis Association (KNLTB). A monthly questionnaire was sent to a random sample of 20 000 KNLTB members, stratified by their club's playing surface...
February 16, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203600/do-muscle-strength-deficits-of-the-uninvolved-hip-and-knee-exist-in-young-athletes-before-anterior-cruciate-ligament-reconstruction
#12
Joseph Hannon, Sharon Wang-Price, Shiho Goto, J Craig Garrison, James M Bothwell
BACKGROUND: Muscle strength of the involved limb is known to be decreased after injury. Comparison with the uninvolved limb has become standard of practice to measure progress and for calculation of limb symmetry indices (LSIs) to determine readiness to return to sport. However, some literature suggests strength changes in the uninvolved limb also are present after lower extremity injury. PURPOSE: To examine the uninvolved limb strength in a population of adolescent athletes after an anterior cruciate ligament (ACL) injury and compare strength values with those of the dominant limb in a healthy control group...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203593/effects-of-sex-and-fatigue-on-biomechanical-measures-during-the-drop-jump-task-in-children
#13
Kristín Briem, Kolbrún Vala Jónsdóttir, Árni Árnason, Þórarinn Sveinsson
BACKGROUND: Female athletes have a higher rate of anterior cruciate ligament (ACL) injury than males from adolescence and into maturity, which is suggested to result from sex-specific changes in dynamic movement patterns with maturation. Few studies have studied movement strategies and response to fatigue in children. PURPOSE: To evaluate the effect of fatigue on biomechanical variables associated with increased risk for ACL injury during a drop-jump (DJ) performance in children...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28198531/superficial-brachial-artery-a-possible-cause-for-idiopathic-median-nerve-entrapment-neuropathy
#14
Pilani Nkomozepi, Nkosi Xhakaza, Elaine Swanepoel
Nerve entrapment syndromes occur because of anatomic constraints at specific locations in both upper and lower limbs. Anatomical locations prone to nerve entrapment syndromes include sites where a nerve courses through fibro-osseous or fibromuscular tunnels or penetrates a muscle. The median nerve (MN) can be entrapped by the ligament of Struthers; thickened biceps aponeurosis; between the superficial and deep heads of the pronator teres muscle and by a thickened proximal edge of flexor digitorum superficialis muscle...
February 15, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28193783/remote-ischemic-preconditioning-triggers-changes-in-autonomic-nervous-system-activity-implications-for-cardioprotection
#15
Safa Abdul-Ghani, Arnold N Fleishman, Igor Khaliulin, Marco Meloni, Gianni D Angelini, M-Saadeh Suleiman
Cardioprotective efficacy of remote ischemic preconditioning (RIPC) remains controversial. Experimental studies investigating RIPC have largely monitored cardiovascular changes during index ischemia and reperfusion with little work investigating changes during RIPC application. This work aims to identify cardiovascular changes associated with autonomic nervous system (ANS) activity during RIPC and prior to index ischemia. RIPC was induced in anesthetized male C57/Bl6 mice by four cycles of 5 min of hindlimb ischemia using inflated cuff (200 mmHg) followed by 5 min reperfusion...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28193445/endovascular-management-for-peripheral-arterial-trauma-the-new-norm
#16
Anand Ganapathy, Ahmed F Khouqeer, S Robb Todd, Joseph L Mills, Ramyar Gilani
BACKGROUND: Endovascular therapy is well studied in atraumatic conditions; and there appears to be a growing interest in its application to traumatic injuries. The objective of this study is to compare open and endovascular techniques in the management of peripheral arterial trauma. METHODS: This is a retrospective review of patients admitted to a Level I Trauma Center sustaining injuries to the subclavian, axillary, superficial femoral, and popliteal arteries. Demographics, surgical interventions, complications, and clinical outcomes were evaluated in patients requiring open or endovascular repair between 2009 and 2015...
February 4, 2017: Injury
https://www.readbyqxmd.com/read/28188077/development-of-a-preliminary-evidence-based-neuromusculoskeletal-exercise-guideline-to-reduce-injury-risk-in-the-lower-limb
#17
REVIEW
Michael E Lehr, Devin Kime, Cayce Onks, Matthew Silvis, Megan Streisel
Athletic participation growth has resulted in increased exposures and neuromusculoskeletal (NMSK) non-contact injuries. Based on current evidence, the primary objective of this literature review is to create a preliminary evidence-based NMSK exercise guideline, addressing these intrinsic modifiable risk factors. Systematic searches were conducted September 2014 prior to data extraction utilizing CINAHL Plus (1995 to September 2014), MEDLINE (1995 to September 2014), and Academic Search Premier (1995 to September 2014)...
September 17, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28187164/biomechanics-of-fencing-sport-a-scoping-review
#18
Tony Lin-Wei Chen, Duo Wai-Chi Wong, Yan Wang, Sicong Ren, Fei Yan, Ming Zhang
OBJECTIVES: The aim of our scoping review was to identify and summarize current evidence on the biomechanics of fencing to inform athlete development and injury prevention. DESIGN: Scoping review. METHOD: Peer-reviewed research was identified from electronic databases using a structured keyword search. Details regarding experimental design, study group characteristics and measured outcomes were extracted from retrieved studies, summarized and information regrouped under themes for analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28187075/investigating-the-association-between-lower-extremity-and-low-back-symptoms-among-saskatchewan-farmers-using-the-standardized-nordic-questionnaire
#19
Samuel Kwaku Essien, Catherine Trask, James Dosman, Brenna Bath
STUDY DESIGN: Cross sectional survey OBJECTIVE.: To investigated the association between self-reported low back symptoms and symptoms in the hip, knee, and ankle in a high-risk occupational group SUMMARY OF BACKGROUND DATA.: Low back pain, with or without lower extremity referral, poses a major challenge to occupational productivity, especially in farming. Although low back symptoms can occur independent of lower extremity symptoms, anatomical positioning of nerves supplying the lower limbs means structural and physiological changes in the spine can lead to referred pain in the lower limbs, but the magnitude of the association between low back and lower extremity symptoms is unclear...
February 9, 2017: Spine
https://www.readbyqxmd.com/read/28185748/validity-of-ultrasound-in-diagnosis-of-tendon-injuries-in-penetrating-extremity-trauma
#20
Narges Mohammadrezaei, Javad Seyedhosseini, Elnaz Vahidi
BACKGROUND: Tendon ruptures are common musculoskeletal injuries all around the world. Correct and timely diagnosis of tendon injuries is obviously important for improving the treatment and minimizing the community costs. Ultrasound is now being considered as one of useful modalities in this area. OBJECTIVE: The preset study is going to validate the diagnostic ability of ultrasound in tendon injuries induced by penetrating extremity trauma. METHODS: In this prospective, observational study, patients with penetrating extremity trauma and suspicion of tendon injuries were enrolled in our study...
January 27, 2017: American Journal of Emergency Medicine
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