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https://www.readbyqxmd.com/read/29791704/use-of-neuromuscular-electrical-stimulation-during-physical-therapy-may-reduce-the-incidence-of-arthrofibrosis-after-total-knee-arthroplasty
#1
Chukwuweike U Gwam, Tanner McGinnis, Jennifer I Etcheson, Nicole E George, Assem A Sultan, Ronald E Delanois, Anil Bhave, Steven F Harwin, Michael A Mont
INTRODUCTION: Arthrofibrosis remains a major complication following total knee arthroplasty (TKA) that negatively impacts patient outcomes and exhausts healthcare resources. The use of neuromuscular electrical stimulation (NMES) has demonstrated the ability to facilitate quadriceps muscle recovery and reduce pain. Therefore, the purpose of this study was to compare TKA patients who received physical therapy (PT) and adjuvant NMES therapy versus physical therapy alone in terms of: 1) rates of manipulation under anesthesia (MUA) to treat arthrofibrosis; and 2) post-therapy range of motion (ROM)...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29791699/a-comparative-effectiveness-study-for-non-operative-treatment-methods-for-knee-osteoarthritis
#2
Frank R Kolisek, Charles Jaggard, Anton Khlopas, Assem A Sultan, Nipun Sodhi, Michael A Mont
A number of non-operative treatment options are commonly prescribed for patients presenting with degenerative osteoarthritis of the knee, where surgery is not yet recommended. However, there is a paucity of studies evaluating the comparative effectiveness of these treatment options to best inform both patients and providers. This study examined the comparative effectiveness of a home exercise program versus bracing or a combination of the two (brace-only, exercise-only, and brace and exercise cohorts) on the following: 1) objective functional measures (quadriceps muscle strength, Self-Paced Walk Test [SPWT], and Timed "Up & Go" [TUG] Test); 2) subjective functional measures (Lower Extremity Function Scale [LEFS] and Health Survey [VR-12] outcomes); 3) pain using Visual Analog Scale [VAS-10]; 4) patient metrics (patient treatment preference, perceptions, and compliance); and 5) progression to total knee arthroplasty (TKA) over a 12-week period...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29791183/a-2-year-prospective-cohort-study-of-overuse-running-injuries-the-runners-and-injury-longitudinal-study-trails
#3
Stephen P Messier, David F Martin, Shannon L Mihalko, Edward Ip, Paul DeVita, D Wayne Cannon, Monica Love, Danielle Beringer, Santiago Saldana, Rebecca E Fellin, Joseph F Seay
BACKGROUND: The National Center for Injury Prevention and Control, noting flaws in previous running injury research, called for more rigorous prospective designs and comprehensive analyses to define the origin of running injuries. PURPOSE: To determine the risk factors that differentiate recreational runners who remain uninjured from those diagnosed with an overuse running injury during a 2-year observational period. STUDY DESIGN: Cohort study; Level of evidence, 2...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29789413/best-protocol-for-the-sit-to-stand-test-in-subjects-with-copd
#4
Andrea A Morita, Gianna W Bisca, Felipe V C Machado, Nidia A Hernandes, Fabio Pitta, Vanessa S Probst
BACKGROUND: Different protocols for the sit-to-stand test (STS) are available for assessing functional capacity in COPD. We sought to correlate each protocol of the STS (ie, the 5-repetition [5-rep STS], the 30-s STS, and the 1-min STS) with clinical outcomes in subjects with COPD. We also aimed to compare the 3 protocols of the STS, to verify their association and agreement, and to verify whether the 3 protocols are able to predict functional exercise capacity and physical activity in daily life (PADL)...
May 22, 2018: Respiratory Care
https://www.readbyqxmd.com/read/29789262/eccentric-cycling-emphasising-a-low-cardiopulmonary-demand-increases-leg-strength-equivalent-to-workload-matched-concentric-cycling-in-middle-age-sedentary-males
#5
Michael C Lewis, Gregory E Peoples, Herbert Groeller, Marc A Brown
OBJECTIVES: This study determined if eccentric endurance cycling, eliciting a low cardiovascular demand, could stimulate muscle strength adaptations in sedentary middle-aged males. DESIGN: Twenty-four middle-aged sedentary males were allocated to concentric (CON) or matched workload eccentric (ECC) cycling (60% peak concentric workload) according to their maximal voluntary isometric quadriceps strength. METHODS: Seventeen participants [42...
May 15, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29788511/training-effects-of-alternated-and-pulsed-currents-on-the-quadriceps-muscles-of-athletes
#6
Pedro Oliveira, Karenina Arrais Guida Modesto, Martim Bottaro, Nicolas Babault, João Luiz Quagliotti Durigan
The aim of the study was to evaluate the effects of 6 weeks training with different neuromuscular electrical stimulation (NMES) currents (medium alternated and low-frequency pulsed current) on muscle architecture and neuromuscular performance of competitive athletes. A double-blind controlled and randomized experimental study was carried out with 33 athletes (22.2±2.6 yrs, 74.7±9.8 kg, 176.8±6.0 cm), divided into 3 groups: mid-frequency current (MF, n=12), pulsed current (PC, n=11) and the control group (CG, n=10)...
May 22, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29787693/quadriceps-rate-of-torque-development-and-disability-in-persons-with-tibiofemoral-osteoarthritis
#7
Brittney A Luc-Harkey, J Troy Blackburn, Eric D Ryan, Matthew S Harkey, Hope C Davis, Brian R Gaynor, Daniel B Nissman, Jeffery T Spang, Brian Pietrosimone
Study Design Controlled laboratory study, cross-sectional. Background Declines in the ability to rapidly generate quadriceps muscle torque may underlie disability in persons with tibiofemoral osteoarthritis. Objective To determine if quadriceps rate of torque development (RTD) predicts self-reported disability and physical performance outcomes in persons with tibiofemoral osteoarthritis. Methods Quadriceps strength and RTD were assessed in 76 individuals (53% female, age = 61.83±7.11 years) with symptomatic and radiographic tibiofemoral osteoarthritis...
May 22, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29787583/gender-associated-muscle-tendon-adaptations-to-resistance-training
#8
Gerard McMahon, Christopher I Morse, Keith Winwood, Adrian Burden, Gladys L Onambélé
PURPOSE: To compare the relative changes in muscle-tendon complex (MTC) properties following high load resistance training (RT) in young males and females, and determine any link with circulating TGFβ-1 and IGF-I levels. METHODS: Twenty-eight participants were assigned to a training group and subdivided by sex (T males [TM] aged 20±1 year, n = 8, T females [TF] aged 19±3 year, n = 8), whilst age-matched 6 males and 6 females were assigned to control groups (ConM/F)...
2018: PloS One
https://www.readbyqxmd.com/read/29782218/postural-control-and-physiological-responses-to-a-simulated-match-in-u-20-judo-competitors
#9
Luis Santos, Javier Fernández-Río, Eliseo Iglesias-Soler, Miguel Blanco-Traba, Markus Due Jakobsen, Vicente González-Díez, Emerson Franchini, Carlos Gutiérrez, Xurxo Dopico-Calvo, Eduardo Carballeira-Fernández, William Amonette, Oscar Suman
The aim was to evaluate the effects of judo combat on the athletes' postural control (PC) and physiological loading before, during and after a simulated match. Seventeen under-20 regional and national level athletes completed one modified 7-min match. At baseline, during the combat (3rd and 7th minutes) and 2-min post-match centre of pressure (CoP) parameters were assessed. Heart rate (HR), blood lactate (BLa) and rating of perceived exertion (RPE) and local RPE (LRPE) were collected. Significant increments were observed in CoP mean positioning and velocity at 3rd and 7th minutes, but the CoP deviation in both axes was unaffected...
May 21, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29781992/muscle-imbalances-testing-and-training-functional-eccentric-hamstring-strength-in-athletic-populations
#10
Petr Stastny, Michal Lehnert, James J Tufano
Many hamstring injuries that occur during physical activity occur while the muscles are lengthening, during eccentric hamstring muscle actions. Opposite of these eccentric hamstring actions are concentric quadriceps actions, where the larger and likely stronger quadriceps straighten the knee. Therefore, to stabilize the lower limbs during movement, the hamstrings must eccentrically combat against the strong knee-straightening torque of the quadriceps. As such, eccentric hamstring strength expressed relative to concentric quadricep strength is commonly referred to as the "functional ratio" as most movements in sports require simultaneous concentric knee extension and eccentric knee flexion...
May 1, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781580/neuromuscular-electrical-stimulation-compared-to-volitional-exercise-in-improving-muscle-function-in-rheumatoid-arthritis-a-randomized-pilot-study
#11
Sara R Piva, Samannaaz S Khoja, Frederico G S Toledo, Mary Chester Wasko, G Kelley Fitzgerald, Bret H Goodpaster, Clair N Smith, Anthony Delitto
OBJECTIVES: To compare the feasibility and effectiveness of Neuromuscular Electrical Stimulation (NMES) with high-intensity volitional resistance training in improving muscle structure and function, and physical function in patients with rheumatoid arthritis (RA). We also described pre- and post-intervention values of myocyte characteristics. METHODS: Two-group single-blinded pilot randomized study in adults with RA. Participants were assigned to 36 sessions over 16 weeks of NMES (n=31) or volitional training (n=28)...
May 21, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29776815/strength-recovery-after-anterior-cruciate-ligament-reconstruction-with-quadriceps-tendon-versus-hamstring-tendon-autografts-in-soccer-players-a-randomized-controlled-trial
#12
Jose Luis Martin-Alguacil, Manuel Arroyo-Morales, Jose Luis Martín-Gomez, Isidro Manuel Monje-Cabrera, Juan F Abellán-Guillén, Francisco Esparza-Ros, Mario Lozano Lozano, Irene Cantarero-Villanueva
BACKGROUND: The comparison between HT and QT grafts in strength recovery and function after an ACLR is scarce in the literature. METHODS: A total of 56 participants were enrolled in this randomized controlled trial and placed into two groups: HT or QT. The hamstring/quadriceps (H/Q) ratio was the primary end-point measured with a Genu-3 dynamometer. Peak torque, functional assessment (Lysholm knee scoring scale and Cincinnati Knee Rating System), and anteroposterior laxity (KT-2000™ arthrometer) were also assessed...
May 15, 2018: Knee
https://www.readbyqxmd.com/read/29775379/decision-to-return-to-sport-participation-after-anterior-cruciate-ligament-reconstruction-part-ii-self-reported-and-functional-performance-outcomes
#13
Jennifer L Werner, Julie P Burland, Carl G Mattacola, Jenny Toonstra, Robert A English, Jennifer S Howard
CONTEXT:   Anterior cruciate ligament (ACL) reconstruction (ACLR) is the most commonly used method for helping athletes regain function and return to preinjury activity levels after ACL injury. Outcomes after ACLR have suggested that athletes return to a level of function that would support a return to sport participation; however, in a recent meta-analysis, pooled return rates were only 55%. It is unclear whether this discrepancy is a result of functional impairments. OBJECTIVE:   To compare patient-reported outcomes (PROs), dynamic balance, dynamic functional performance, strength, and muscular endurance in athletes who have returned to sport (RTS) and athletes who have not returned to sport (NRTS) after ACLR...
May 18, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29774599/deep-convolutional-neural-network-for-segmentation-of-knee-joint-anatomy
#14
Zhaoye Zhou, Gengyan Zhao, Richard Kijowski, Fang Liu
PURPOSE: To describe and evaluate a new segmentation method using deep convolutional neural network (CNN), 3D fully connected conditional random field (CRF), and 3D simplex deformable modeling to improve the efficiency and accuracy of knee joint tissue segmentation. METHODS: A segmentation pipeline was built by combining a semantic segmentation CNN, 3D fully connected CRF, and 3D simplex deformable modeling. A convolutional encoder-decoder network was designed as the core of the segmentation method to perform high resolution pixel-wise multi-class tissue classification for 12 different joint structures...
May 17, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29774167/complete-hypokalemic-quadriparesis-as-a-first-presentation-of-sj%C3%A3-gren-syndrome
#15
Jason An, Branko Braam
Rationale: We hope to increase awareness that hypokalemic paralysis may be the first presentation of Sjögren syndrome, for which potassium-sparing diuretics can be an effective adjunct to potassium replenishment. Presenting concerns: A 73-year-old female presented to a peripheral hospital with quadriparesis and a critically low serum potassium of 1.6 mmol/L with U waves on the electrocardiogram (ECG). The initial arterial blood gas showed a pH of 7.19, bicarbonate of 13 mEq/L, and a CO2 of 35 mm Hg...
2018: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/29772995/bilateral-spontaneous-quadriceps-tendon-ruptures-after-staged-bilateral-total-knee-arthroplasties-a-case-report
#16
Marine Coste, Jared M Newman, Neil V Shah, Ahmed M Eldib, Preston W Grieco, Aditya V Maheshwari
Quadriceps tendon ruptures are rare complications of total knee arthroplasty (TKA) and may be associated with preexisting tendon degeneration, vascular injuries during surgery, damage to the quadriceps tendon with over resection of the patella, or incomplete healing after a particular surgical approach. Moreover, postoperative causes include tissue necrosis due to component malalignment, trauma, and infection. Patient factors such as chronic systemic diseases, medications, increased body weight, and sedentary lifestyle could also be responsible...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29772844/leucine-supplementation-does-not-attenuate-skeletal-muscle-loss-during-leg-immobilization-in-healthy-young-men
#17
Evelien M P Backx, Astrid M H Horstman, Gabriel N Marzuca-Nassr, Janneau van Kranenburg, Joey S Smeets, Cas J Fuchs, Anniek A W Janssen, Lisette C P G M de Groot, Tim Snijders, Lex B Verdijk, Luc J C van Loon
BACKGROUND: Short successive periods of physical inactivity occur throughout life and contribute considerably to the age-related loss of skeletal muscle mass. The maintenance of muscle mass during brief periods of disuse is required to prevent functional decline and maintain metabolic health. OBJECTIVE: To assess whether daily leucine supplementation during a short period of disuse can attenuate subsequent muscle loss in vivo in humans. METHODS: Thirty healthy (22 ± 1 y) young males were exposed to a 7-day unilateral knee immobilization intervention by means of a full leg cast with (LEU, n = 15) or without (CON, n = 15) daily leucine supplementation (2...
May 17, 2018: Nutrients
https://www.readbyqxmd.com/read/29769834/continuous-knee-cooling-affects-functional-hop-performance-a-randomized-controlled-trial
#18
Bruno Tassignon, Ben Serrien, Kevin De Pauw, Jean-Pierre Baeyens, Romain Meeusen
Cryotherapy is widely used in sports and rehabilitation to aid recovery and injury management. The purpose was to examine if a low temperature computer controlled continuous knee cooling protocol (10°C) for one hour and a moderate continuous knee cooling protocol (18°C) for one hour affected neuromuscular activity and functional performance tests. We used a randomized controlled study design. Twenty healthy male subjects (age = 24 ± 3 years) were included and randomized into 2 groups (10°C and 18°C). On day one, participants performed a maximal voluntary contraction of the quadriceps (MVC), single leg hop for distance (SLHD), and crossover hop for time (COHT) with both legs before and after cooling of their right leg...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29767809/pediatric-anterior-cruciate-ligament-reconstruction
#19
Alexia G Gagliardi, Jay C Albright
The rate of anterior cruciate ligament (ACL) ruptures diagnosed among the pediatric and adolescent population is increasing. The rise in ACL injuries may be attributed to earlier sports specialization, year-round sports participation, increased awareness, and improved ability to diagnose the injury. Treatment options for pediatric or adolescent ACL injuries include nonoperative conservative treatment, ACL repair, or various techniques for ACL reconstruction. The best course of treatment for ACL rupture in young patients continues to be debated...
May 1, 2018: Orthopedics
https://www.readbyqxmd.com/read/29765878/effects-of-very-high-stimulation-frequency-and-wide-pulse-duration-on-stimulated-force-and-fatigue-of-quadriceps-in-healthy-participants
#20
Kitima Rongsawad, Jonjin Ratanapinunchai
Objective: To determine the effect of very high stimulation frequency (150 and 200 Hz) with wide pulse duration versus 50 Hz with wide pulse duration on stimulated force and fatigue of quadriceps femoris in healthy participants. Methods: Thirty-four healthy participants underwent fatigue test using three stimulation frequency conditions (50, 150, and 200 Hz) with pulse duration of 0.9 ms. Normalized force values at the end of each fatigue protocol and curve fitting patterns were compared among stimulated frequencies...
April 2018: Annals of Rehabilitation Medicine
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