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https://www.readbyqxmd.com/read/28513278/infraspinatus-isolation-during-external-rotation-exercise-at-varying-degrees-of-abduction
#1
Gareth Ryan, Heather Johnston, Janice Moreside
CONTEXT: External rotation (ER) strengthening exercises are a common component of shoulder injury prevention and rehabilitation programs. They are primarily intended to target the infraspinatus muscle, based on its role in glenohumeral stabilization and inferior humeral glide. ER also recruits the posterior deltoid, which can be undesirable due to its role in subacromial space narrowing. OBJECTIVE: To determine the angle of humeral abduction that maximizes the infraspinatus to posterior deltoid activation ratio (INFRA/PD) during ER...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28509631/improving-balance-mobility-and-dual-task-performance-in-an-adolescent-with-cerebral-palsy-a-case-report
#2
Sarah Fisher-Pipher, Lisa K Kenyon, Marci Westman
BACKGROUND AND PURPOSE: Improving functional mobility is often a desired outcome for adolescents with cerebral palsy (CP). Traditional neurorehabilitation approaches are frequently directed at impairments; however, improvements may not be carried over into functional mobility. The purpose of this case report was to describe the examination, intervention, and outcomes of a task-oriented physical therapy intervention program to improve dynamic balance, functional mobility, and dual-task performance in an adolescent with CP...
May 16, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28509596/joint-moment-angle-properties-of-the-hip-abductors-and-hip-extensors
#3
Curtis Kindel, John Challis
PURPOSE: Strengthening of hip joint musculature is common in the rehabilitation of the lower extremity. However, strength curves for hip abduction and extension have not been assessed when varying the position of the knee. The force-length properties of the biarticular muscles can be affected when altering the position of the knee during the production of hip moments. METHODS: Maximum isometric joint moments were measured at four different angles of hip abduction and hip extension, at the two knee positions (0° and 90°)...
May 16, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28505994/effect-of-three-dimensional-spine-stabilization-exercise-on-trunk-muscle-strength-and-gait-ability-in-chronic-stroke-patients-a-randomized-controlled-trial
#4
Sung-Jun Moon, Tae-Ho Kim
BACKGROUND: Three-dimensional spine stabilization exercise can strengthen the trunk muscles with minimal spine movement. OBJECTIVE: To investigate the effects of the newly developed Spine Balance three-dimensional (3D) system on trunk strength and gait abilities of chronic stroke patients. METHODS: Twenty-four chronic stroke patients were randomly assigned to an experimental (n = 12) or control group (n = 12). The experimental and control groups performed spine stabilization exercise by using the newly developed Spine Balance 3D system and the well-known Bridge exercise thrice a week for 30 min per day for 7 weeks...
May 11, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28505208/neuromuscular-function-of-the-quadriceps-muscle-during-isometric-maximal-submaximal-and-submaximal-fatiguing-voluntary-contractions-in-knee-osteoarthrosis-patients
#5
Anett Mau-Moeller, Robert Jacksteit, Mario Jackszis, Frank Feldhege, Matthias Weippert, Wolfram Mittelmeier, Rainer Bader, Ralf Skripitz, Martin Behrens
INTRODUCTION: Knee osteoarthrosis (KOA) is commonly associated with a dysfunction of the quadriceps muscle which contributes to alterations in motor performance. The underlying neuromuscular mechanisms of muscle dysfunction are not fully understood. The main objective of this study was to analyze how KOA affects neuromuscular function of the quadriceps muscle during different contraction intensities. MATERIALS AND METHODS: The following parameters were assessed in 20 patients and 20 healthy controls: (i) joint position sense, i...
2017: PloS One
https://www.readbyqxmd.com/read/28504067/effectiveness-of-inclusion-of-dry-needling-into-a-multimodal-therapy-program-for-patellofemoral-pain-a-randomized-parallel-group-trial
#6
Gemma V Espí-López, Pilar Serra-Añó, Juan Vicent-Ferrando, Miguel Sánchez-Moreno-Giner, Jose L Arias-Buría, Joshua Cleland, César Fernández-de-Las-Peñas
Study Design Randomized controlled trial. Background Evidence suggests that multimodal interventions including exercise therapy may be effective for patellofemoral pain (PFP), however no study has investigated the effects of trigger point dry needling (TrP-DN) in people with PFP. Objectives To compare the effects of adding TrP-DN into a manual therapy and exercise program on pain, function, and disability in individuals with PFP. Methods Individuals with PFP (n=60) recruited from a public hospital in Valencia (Spain) were randomly allocated to manual therapy and exercises (n=30) or manual therapy and exercise plus TrP-DN (n=30)...
May 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28503534/effects-of-three-spinal-stabilization-techniques-on-activation-and-thickness-of-abdominal-muscle
#7
Byeong-Jo Kim, Su-Kyoung Lee
In this study, we examine the thickness of the abdominal muscle and its activity during the performance of the three drawing-in methods. The subjects were 20 healthy male and female students in their 20s. Using ultrasonography and electromyography, the experimenter measured the thickness of the transversus abdominis (TrA) muscle, internal oblique (IO) muscle and external oblique (EO) muscle. The ultrasonography measurements for the drawing-in manoeuver (DI), abdominal bracing, and posterior pelvic tilt (PT) techniques were 0...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28502335/limb-girdle-muscular-dystrophy-2b-and-miyoshi-presentations-of-dysferlinopathy
#8
Nirupa J Patel, Kenneth W Van Dyke, Luis R Espinoza
We report the following 2 subtypes of progressive limb-girdle dystrophy type 2B: limb-girdle muscular dystrophy type 2B (LGMD2B) and Miyoshi. The first patient described had weakness in the anterior thigh muscles (LGMD2B) and the second patient had calf muscle weakness and atrophy (Miyoshi). Literature review was performed and LGMD2B was compared and distinguished from other myopathies of similar nature. Genetic testing with polymerase chain reaction analysis of the DYSF gene confirmed the diagnosis in both patients...
May 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28500954/finger-forces-in-fastball-baseball-pitching
#9
Hiroshi Kinoshita, Satoshi Obata, Daiki Nasu, Koji Kadota, Tomoyuki Matsuo, Glenn S Fleisig
Forces imparted by the fingers onto a baseball are the final, critical aspects for pitching, however these forces have not been quantified previously as no biomechanical technology was available. In this study, an instrumented baseball was developed for direct measurement of ball reaction force by individual fingers and used to provide fundamental information on the forces during a fastball pitch. A tri-axial force transducer with a cable having an easily-detachable connector were installed in an official baseball...
May 10, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28500081/quadriceps-strengthening-with-and-without-blood-flow-restriction-in-the-treatment-of-patellofemoral-pain-a-double-blind-randomised-trial
#10
Lachlan Giles, Kate E Webster, Jodie McClelland, Jill L Cook
BACKGROUND: Quadriceps strengthening exercises are part of the treatment of patellofemoral pain (PFP), but the heavy resistance exercises may aggravate knee pain. Blood flow restriction (BFR) training may provide a low-load quadriceps strengthening method to treat PFP. METHODS: Seventy-nine participants were randomly allocated to a standardised quadriceps strengthening (standard) or low-load BFR. Both groups performed 8 weeks of leg press and leg extension, the standard group at 70% of 1 repetition maximum (1RM) and the BFR group at 30% of 1RM...
May 12, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28498227/mechanisms-and-treatments-for-shoulder-injuries-in-overhead-throwing-athletes
#11
Jason L Zaremski, Joseph G Wasser, Heather K Vincent
Shoulder injuries in overhead throwing athletes are very common. Throwing volume and mechanical forces that are placed on the glenohumeral joint and associated soft tissue structures are contributors. Poor biomechanics and weak links in the kinetic chain place this athletic population at increased risk for shoulder injuries. Common biomechanical deficiencies in overhead throwing athletes typically involve poor sequential timing of muscle activity and insufficient coordination also presented in shoulder elevation and other functional tasks...
May 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28498224/core-training-in-low-back-disorders-role-of-the-pilates-method
#12
Andrew A Joyce, Dana H Kotler
The Pilates method is a system of exercises developed by Joseph Pilates, which emphasizes recruitment and strengthening of the core muscles, flexibility, and breathing, to promote stability and control of movement. Its focus bears similarity to current evidence-based exercise programs for low back disorders. Spinal stability is a function of three interdependent systems, osseoligamentous, muscular, and neural control; exercise addresses both the muscular and neural function. The "core" typically refers to the muscular control required to maintain functional stability...
May 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28464097/live-animal-assessments-of-rump-fat-and-muscle-score-in-angus-cows-and-steers-using-3-dimensional-imaging
#13
M J McPhee, B J Walmsley, B Skinner, B Littler, J P Siddell, L M Cafe, J F Wilkins, V H Oddy, A Alempijevic
The objective of this study was to develop a proof of concept for using off-the-shelf Red Green Blue-Depth (RGB-D) Microsoft Kinect cameras to objectively assess P8 rump fat (P8 fat; mm) and muscle score (MS) traits in Angus cows and steers. Data from low and high muscled cattle (156 cows and 79 steers) were collected at multiple locations and time points. The following steps were required for the 3-dimensional (3D) image data and subsequent machine learning techniques to learn the traits: 1) reduce the high dimensionality of the point cloud data by extracting features from the input signals to produce a compact and representative feature vector, 2) perform global optimization of the signatures using machine learning algorithms and a parallel genetic algorithm, and 3) train a sensor model using regression-supervised learning techniques on the ultrasound P8 fat and the classified learning techniques for the assessed MS for each animal in the data set...
April 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28462115/therapeutic-potential-of-eccentric-exercises-for-age-related-muscle-atrophy
#14
REVIEW
Jae-Young Lim
Recent studies have focused on evidence-based interventions to prevent mobility decline and enhance physical performance in older adults. Several modalities, in addition to traditional strengthening programs, have been designed to manage age-related functional decline more effectively. In this study, we reviewed the current relevant literatures to assess the therapeutic potential of eccentric exercises for age-related muscle atrophy (sarcopenia). Age-related changes in human skeletal muscle, and their relationship with physical performance, are discussed with reference to in vitro physiologic and human biomechanics studies...
September 2016: Integr Med Res
https://www.readbyqxmd.com/read/28459795/four-weeks-of-nordic-hamstring-exercise-reduce-muscle-injury-risk-factors-in-young-adults
#15
João Breno de A R Alvares, Vanessa Bernardes Marques, Marco Aurélio Vaz, Bruno Manfredini Baroni
The Nordic hamstring exercise (NHE) is a field-based exercise designed for knee-flexor eccentric strengthening, aimed at muscle strains prevention. However, possible effects of NHE programmes on other hamstring injury risk factors remain unclear. The purpose of this study was to investigate the effects of a NHE training programme on multiple hamstring injury risk factors. Twenty physically active young adults were allocated into two equal sized groups: control group (CG) and training group (TG). The TG was engaged in a 4-week NHE programme, twice a week, 3 sets of 6-10 repetitions; while CG received no exercise intervention...
April 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28456333/how-symmetric-are-metal-on-metal-hip-resurfacing-patients-during-gait-insights-for-the-rehabilitation
#16
Renan A Resende, Renata N Kirkwood, John F Rudan, Kevin J Deluzio
Metal-on-metal hip resurfacing patients demonstrate hip biomechanics closer to normal in comparison to total hip arthroplasty during gait. However, it is not clear how symmetric is the gait of hip resurfacing patients. Biomechanical data of 12 unilateral metal-on-metal hip resurfacing participants were collected during gait at a mean time of 45months (SD 24) after surgery. Ankle, knee, hip, pelvis and trunk kinematics and kinetics of both sides were measured with a motion and force-capture system. Principal component analysis and mean hypothesis' tests were used to compare the operated and healthy sides...
April 19, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28455629/validation-of-an-active-shape-model-based-semi-automated-segmentation-algorithm-for-the-analysis-of-thigh-muscle-and-adipose-tissue-cross-sectional-areas
#17
Jana Kemnitz, Felix Eckstein, Adam G Culvenor, Anja Ruhdorfer, Torben Dannhauer, Susanne Ring-Dimitriou, Alexandra M Sänger, Wolfgang Wirth
OBJECTIVE: To validate a semi-automated method for thigh muscle and adipose tissue cross-sectional area (CSA) segmentation from MRI. MATERIALS AND METHODS: An active shape model (ASM) was trained using 113 MRI CSAs from the Osteoarthritis Initiative (OAI) and combined with an active contour model and thresholding-based post-processing steps. This method was applied to 20 other MRIs from the OAI and to baseline and follow-up MRIs from a 12-week lower-limb strengthening or endurance training intervention (n = 35 females)...
April 28, 2017: Magma
https://www.readbyqxmd.com/read/28451436/loading-conditions-in-the-spine-hip-and-knee-during-different-executions-of-back-extension-exercises
#18
Florian Schellenberg, Nicole Schmid, Ramona Häberle, Nicole Hörterer, William R Taylor, Silvio Lorenzetti
BACKGROUND: Back extension (BE) is a strength exercise for training the dorsal trunk and hip muscles. To optimise training recommendations that avoid overloading and possible injury, the aim of this study was to determine the loading conditions and the influence of different execution forms of BE on spine, hip and knee ranges of motion (RoMs), joint moments and muscle activity. METHODS: The kinematics, kinetics and muscle activity (EMG) of two execution types (BEh: dynamic hip, BEs: dynamic spine) and two versions (one-legged and two-legged) of BE were measured in 16 subjects...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28447184/electromyographic-evaluation-of-high-intensity-elastic-resistance-exercises-for-lower-extremity-muscles-during-bed-rest
#19
Jonas Vinstrup, Sebastian Skals, Joaquin Calatayud, Markus Due Jakobsen, Emil Sundstrup, Matheus Daros Pinto, Mikel Izquierdo, Yuling Wang, Mette K Zebis, Lars Louis Andersen
PURPOSE: Prolonged hospital bed rest after severe injury or disease leads to rapid muscle atrophy and strength loss. Therefore, the main aim of this study was to evaluate the efficacy of lower extremity strengthening exercises using elastic resistance that can be performed while lying in a hospital bed. METHODS: Using a cross-sectional design, 22 healthy individuals performed three consecutive repetitions of 14 different lower extremity exercises using elastic resistance, with a perceived intensity corresponding to 8 on the Borg CR-10 scale...
April 26, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28445875/double-incision-approach-and-early-rehabilitation-in-a-complicated-bicondylar-br-tibial-plateau-fracture-a-case-report-br-br
#20
Saverio Affatato, Maurizio Montalti, Claudio Masetti, Federico Giardina, Alessandra Sudanese
OBJECTIVE: The main goal of this case was to report the treatment of bicondylar fractures of the tibial plateau and the restoration of the metaphyseo-diaphyseal dissociation. CLINICAL PRESENTATION AND INTERVENTION: A 54-year old man who was cycling had a road accident that caused a closed fracture of the right tibial plateau and proximal fibula diagnosed by x-rays. Patient had surgical procedure and was immobilized with a long-leg splint for 4 weeks. After immobilization, aggressive rehabilitation was done...
April 26, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
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