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https://www.readbyqxmd.com/read/29148611/biomechanical-investigation-of-the-modified-tardieu-scale-in-assessing-knee-extensor-spasticity-poststroke
#1
Samaneh Gholami, Noureddin Nakhostin Ansari, Soofia Naghdi, Azadeh Tabatabaei, Davood Jannat, Maryam Senobari, Mahdi Dadgoo
OBJECTIVE: The modified Tardieu Scale (MTS) is a clinical tool for the measurement of muscle spasticity. The present study aimed to investigate the relationship between the MTS and the slope of the work-velocity curve as a biomechanical measure in assessing knee extensor muscle spasticity in patients with stroke. METHODS: Thirty patients with stroke (22 female, 8 male; mean age 55.4 ± 12.0 years) participated in this study. The knee extensor spasticity was assessed with the MTS...
November 17, 2017: Physiotherapy Research International: the Journal for Researchers and Clinicians in Physical Therapy
https://www.readbyqxmd.com/read/29147849/heterogeneity-of-passive-elastic-properties-within-the-quadriceps-femoris-muscle-tendon-unit
#2
Brooke K Coombes, Brandon Ziegenfuss, Michael David, Rohitha Badya, Wolbert van den Hoorn, François Hug, Kylie Tucker
PURPOSE: The purpose of this study was to compare regional elastic properties between anterior and posterior regions of the patellar tendon, and individual quadriceps muscles, over a range of knee flexion angles. METHODS: An isokinetic dynamometer passively positioned the non-dominant knee of 19 young, healthy participants, at 25°, 40°, 55°, 70° and 85° flexion. Shear wave velocity (SWV, an index of tissue elasticity) was measured using ultrasound shear wave elastography in a relaxed (passive) state, confirmed by electromyography...
November 17, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29147670/isokinetic-extension-strength-is-associated-with-single-leg-vertical-jump-height
#3
Felix Fischer, Cornelia Blank, Tobias Dünnwald, Peter Gföller, Elmar Herbst, Christian Hoser, Christian Fink
Background: Isokinetic strength testing is an important tool in the evaluation of the physical capacities of athletes as well as for decision making regarding return to sports after anterior cruciate ligament (ACL) reconstruction in both athletes and the lay population. However, isokinetic testing is time consuming and requires special testing equipment. Hypothesis: A single-jump test, regardless of leg dominance, may provide information regarding knee extension strength through the use of correlation analysis of jump height and peak torque of isokinetic muscle strength...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29145963/functional-results-and-isokinetic-muscle-strength-in-patients-with-fraser-type-i-floating-knee-treated-with-internal-fixation
#4
Fernando Brandao Andrade-Silva, Adriana Carvalho, Caio Mansano, Aline Giese, Marcos de Camargo Leonhardt, Dennis Barbosa, Kodi Edson Kojima, Jorge Santos Silva
INTRODUCTION: According to Fraser's description, ipsilateral femoral and tibial diaphyseal fractures are characterised as type I floating knee and have a better prognosis than fractures with joint involvement (type II). There are few reports of functional and muscle strength in these patients. The objective of this study was to evaluate the functional and isokinetic muscle strength of patients with type I floating knee undergoing femoral and tibial internal fixation. METHODS: Patients with type I floating knee undergoing concomitant femoral and tibial internal fixation were invited for clinical evaluation...
October 2017: Injury
https://www.readbyqxmd.com/read/29141611/are-paraspinous-intramuscular-injections-of-botulinum-toxin-a-bont-a-efficient-in-the-treatment-of-chronic-low-back-pain-a-randomised-double-blinded-crossover-trial
#5
Mélanie Cogné, Hervé Petit, Alexandre Creuzé, Dominique Liguoro, Mathieu de Seze
BACKGROUND: Treatment for patients with chronic low-back pain (LBP) is a public health issue. Intramuscular injections of botulinum toxin A (BoNT-A) have shown an analgesic effect on LBP in two previous randomized controlled studies. The objective of the study was to verify the efficacy of paravertebral injections of BoNT-A in patients with LBP. METHODS: Patients were included in this phase 3 randomized double-blinded trial comparing the efficacy of BoNT-A versus placebo in a crossover study on LBP...
November 15, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29140169/relationship-between-physical-therapy-characteristics-surgical-procedure-and-clinical-outcomes-in-patients-after-acl-reconstruction
#6
Ian J Dempsey, Grant E Norte, Matthew Hall, John Goetschius, Lindsay V Slater, Jourdan M Cancienne, Brian C Werner, David R Diduch, Joseph M Hart
CONTEXT: Post-operative rehabilitation is critical to optimize outcomes after anterior cruciate ligament reconstruction (ACLR). However, the relationship between physical therapy (PT) and clinical outcomes is unclear. OBJECTIVE: To describe PT characteristics following ACLR, and assess the relationships between PT characteristics, surgical procedure, and clinical outcomes. DESIGN: Cross-sectional. SETTING: Laboratory...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29136253/fatty-degeneration-of-the-rotator-cuff-reflects-shoulder-strength-deficits-in-patients-with-rotator-cuff-tears
#7
Jong Pil Yoon, Jae Wook Jung, Chang Hwa Lee, Young Gun Kim, Seok Won Chung, Joon Yub Kim, Hyun Joo Lee, Jee Wook Yoon, Hoseok Lee
Fatty degeneration is an important clinical factor in patients with rotator cuff tears. Goutallier grade, occupation ratio, and tangent sign help identify fatty degeneration; however, little is known about how closely these measurement techniques correlate with actual muscle strength deficits. The authors evaluated each method's ability to determine the correlation between fatty degeneration and muscle strength deficits. The authors included 203 patients who underwent full-thickness rotator cuff repair (mean age, 61...
November 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/29134470/the-effect-of-long-term-confinement-and-the-efficacy-of-exercise-countermeasures-on-muscle-strength-during-a-simulated-mission-to-mars-data-from-the-mars500-study
#8
Christopher J Gaffney, Elena Fomina, Dennis Babich, Vladimir Kitov, Konstantin Uskov, David A Green
BACKGROUND: Isolation and long duration spaceflight are associated with musculoskeletal deconditioning. Mars500 was a unique, high-fidelity analogue of the psychological challenges of a 520-day manned mission to Mars. We aimed to explore the effect of musculoskeletal deconditioning on three outcome measures: (1) if lower limb muscle strength was reduced during the 520-day isolation; (2) if type I or II muscle fibres were differentially affected; and (3) whether any 70-day exercise interventions prevented any isolation-induced loss of strength...
November 13, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29125817/do-peak-torque-angles-of-muscles-change-following-anterior-cruciate-ligament-reconstruction-using-hamstring-or-patellar-tendon-graft
#9
Hayri Baran Yosmaoğlu, Gül Baltacı, Emel Sönmezer, Hamza Özer, Deha Doğan
OBJECTIVES: This study aims to compare the effects of anterior cruciate ligament (ACL) reconstruction using autogenous hamstring or patellar tendon graft on the peak torque angle. PATIENTS AND METHODS: The study included 132 patients (103 males, 29 females; mean age 29±9 year) who were performed ACL reconstruction with autogenous hamstring or patellar tendon graft. The peak torque angles in the quadriceps and hamstring muscles were recorded using an isokinetic dynamometer...
December 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/29122187/dynamic-and-static-shoulder-strength-relationship-and-predictive-model
#10
Alison C McDonald, Spencer M Savoie, Daanish M Mulla, Peter J Keir
Static strength is typically used to standardize occupational tasks in an effort to limit over-exertion injuries; however, workplace tasks are commonly dynamic in nature. The purpose of this investigation was to assess factors influencing isokinetic shoulder strength and to develop predictive equations for isokinetic shoulder flexion and extension strength using isometric strength. Fifteen women performed a set of concentric isokinetic and isometric shoulder flexion and extension maximal exertions across a series of movement planes, angular velocities, and grip types...
February 2018: Applied Ergonomics
https://www.readbyqxmd.com/read/29118954/measuring-system-and-method-of-determining-the-adaptive-force
#11
Laura Schaefer, Marko Hoff, Frank Bittmann
The term Adaptive Force (AF) describes the capability of adaptation of the nerve-muscle-system to externally applied forces during isometric and eccentric muscle action. This ability plays an important role in real life motions as well as in sports. The focus of this paper is on the specific measurement method of this neuromuscular action, which can be seen as innovative. A measuring system based on the use of compressed air was constructed and evaluated for this neuromuscular function. It depends on the physical conditions of the subject, at which force level it deviates from the quasi isometric position and merges into eccentric muscle action...
June 27, 2017: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29117428/change-in-knee-flexor-torque-after-fatiguing-exercise-identifies-previous-hamstring-injury-in-football-players
#12
Cameron Lord, Fadi Ma'ayah, Anthony J Blazevich
PURPOSE: Muscular fatigue and inter-limb strength asymmetry are factors known to influence hamstring injury risk, however limb-specific exacerbation of knee flexor (hamstrings) torque production after fatiguing exercise has previously been ignored. To investigate changes in muscular force production before and after sport-specific (repeated-sprint) and non-specific (knee extension-flexion) fatiguing exercise, and explore the sensitivity and specificity of isokinetic endurance (i.e. muscle-specific) and single-leg vertical jump (i...
November 8, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29108918/donor-site-morbidity-of-the-anterolateral-thigh-flap
#13
Hannes Weise, Andreas Naros, Gunnar Blumenstock, Michael Krimmel, Sebastian Hoefert, Susanne Kluba, Stefan Hofer, Siegmar Reinert
INTRODUCTION: The purpose of this study was to investigate donor site morbidity after reconstruction of defects in the head and neck region with an anterolateral thigh (ALT) flap. METHODS: From 07/2006 to 12/2015 the anterolateral thigh flap was used for reconstruction of large intra- or extraoral defects in 138 patients. The donor sites were available to examine for morbidity in 51 patients (36.7%). All patients completed a standardized questionnaire, received a physical examination, and underwent isokinetic muscle exercises of the lower extremity with a Dynamometer...
September 30, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29108686/effect-of-extracorporeal-shockwave-therapy-on-passive-ankle-stiffness-in-patients-with-plantar-fasciopathy
#14
Wei-Hsiu Hsu, Pei-An Yu, Li-Ju Lai, Chi-Lung Chen, Liang-Tseng Kuo, Chun-Hao Fan
Plantar fasciopathy (PF) is the most common cause of heel pain. Extracorporeal shockwave therapy (ESWT) improves the gait pattern in patients with PF. However, the effects of ESWT on the biomechanics of the ankle in these patients remains unclear. Sixteen participants were included in the present study. Of the 16 participants, 8 patients with PF were assigned to receive extracorporeal shockwave therapy, and 8 healthy participants served as an external control group. ESWT was applied to the PF group for 1500 pulses at an energy flux of 0...
November 3, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29107041/lateral-corticospinal-tract-damage-correlates-with-motor-output-in-incomplete-spinal-cord-injury
#15
Andrew C Smith, Kenneth A Weber, Denise R O'Dell, Todd B Parrish, Marie Wasielewski, James M Elliott
OBJECTIVE: To investigate the relationship between spinal cord damage and specific motor function in participants with incomplete spinal cord injury (iSCI). DESIGN: single-blinded cross-sectional study design SETTING: University setting research laboratory. PARTICIPANTS: Fourteen individuals with chronic cervical iSCI (1 female and 13 males, average age = 43 ± 12 years old). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Axial T2 MRI of spinal cord damage was performed in 14 participants with iSCI...
October 26, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29101708/dose-response-effect-of-photobiomodulation-therapy-on-neuromuscular-economy-during-submaximal-running
#16
Rodolfo André Dellagrana, Mateus Rossato, Raphael Luiz Sakugawa, Caetano Decian Lazzari, Bruno Manfredini Baroni, Fernando Diefenthaeler
The purpose of this study was to verify the photobiomodulation therapy (PBMT) effects with different doses on neuromuscular economy during submaximal running tests. Eighteen male recreational runners participate in a randomized, double-blind, and placebo-controlled trial, which each participant was submitted to the same testing protocol in five conditions: control, placebo, and PBMT with doses of 15, 30, and 60 J per site (14 sites in each lower limb). The submaximal running was performed at 8 and 9 km h(-1) during 5 min for each velocity...
November 3, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29099680/pre-exercise-infrared-photobiomodulation-therapy-810%C3%A2-nm-in-skeletal-muscle-performance-and-postexercise-recovery-in-humans-what-is-the-optimal-power-output
#17
Adriano Rodrigues de Oliveira, Adriane Aver Vanin, Shaiane Silva Tomazoni, Eduardo Foschini Miranda, Gianna Móes Albuquerque-Pontes, Thiago De Marchi, Vanessa Dos Santos Grandinetti, Paulo Roberto Vicente de Paiva, Treice Beatriz Gonçalves Imperatori, Paulo de Tarso Camillo de Carvalho, Jan Magnus Bjordal, Ernesto Cesar Pinto Leal-Junior
BACKGROUND: Photobiomodulation therapy (PBMT) has recently been used to alleviate postexercise muscle fatigue and enhance recovery, demonstrating positive results. A previous study by our research group demonstrated the optimal dose for an infrared wavelength (810 nm), but the outcomes could be optimized further with the determination of the optimal output power. OBJECTIVE: The aim of the present study was to evaluate the effects of PBMT (through low-level laser therapy) on postexercise skeletal muscle recovery and identify the best output power...
November 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29093684/porcine-stomach-smooth-muscle-force-depends-on-history-effects
#18
André Tomalka, Mischa Borsdorf, Markus Böl, Tobias Siebert
The stomach serves as food reservoir, mixing organ and absorption area for certain substances, while continually varying its position and size. Large dimensional changes during ingestion and gastric emptying of the stomach are associated with large changes in smooth muscle length. These length changes might induce history-effects, namely force depression (FD) following active muscle shortening and force enhancement (FE) following active muscle stretch. Both effects have impact on the force generating capacity of the stomach, and thus functional relevance...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29083355/neuromuscular-recovery-in-acl-reconstruction-with-bone-tendon-patellar-bone-and-semitendinosus-gracilis-autograft
#19
Andrea Pasquini, Marco Jacopetti, Francesco Pogliacomi, Ileana Ramazzina, Cosimo Costantino
OBJECTIVE: Several different types of grafts have been used in ACL rupture. The purpose of the study was to compare the recovery of lower limbs muscle strength and proprioception in athletes, who underwent ACL reconstruction with Bone-Patellar-Tendon-Bone (BPTB) versus semitendinosus and gracilis (HS) autografts. METHODS: We enrolled 30 male amateur athletes. Each patient was evaluated by isokinetic test, triaxial accelerometer test and balance test with stabilometric platform...
October 18, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29077637/contralateral-repeated-bout-effect-of-the-knee-flexors
#20
Trevor C Chen, Ming-Ju Lin, Hsin-Lian Chen, Hui-Yi Yu, Kazunori Nosaka
PURPOSE: Eccentric exercise of the elbow flexors (EF) confers protective effect against muscle damage of the same exercise performed by the opposite arm at 1, 7 or 28 days later. This is known as the contralateral repeated bout effect (CL-RBE), but it is not known whether CL-RBE is evident for the knee flexors (KF). The present study tested the hypothesis that KF CL-RBE would be observed at 1, 7 and 28 days after the initial bout. METHODS: Young untrained men were assigned to a control or one of three experimental groups (n=13/group)...
October 26, 2017: Medicine and Science in Sports and Exercise
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