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Quadriceps strength

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https://www.readbyqxmd.com/read/28107551/knee-function-among-elite-handball-and-football-players-1-to-6-years-after-anterior-cruciate-ligament-injury
#1
G Myklebust, R Bahr, A Nilstad, K Steffen
The aim of the study was to describe objective and self-reported knee function for athletes who have returned to elite handball and football play after an ACL injury, comparing these to non-injured players at the same level. A total of 414 handball and 444 football players completed baseline tests from 2007 through 2014, examining lower extremity strength, dynamic balance, knee laxity, and knee function (KOOS questionnaire). Measures were compared between injured and non-injured legs, and between injured legs and legs of controls...
January 20, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28099237/lower-limb-muscular-strength-balance-and-mobility-levels-in-adults-following-severe-thermal-burn-injuries
#2
Mohammed T A Omar, Amal M Abd El Baky, Anwar A Ebid
Severe burn injuries are associated with hypermetabolic response and increased catabolism. These lead to a vast loss of muscle mass and reduced muscle strength and function. Therefore, the aim of this study is to determine the impact of severe burn injuries on lower-limb muscular strength, balance, and mobility level in adults. Forty burned adults with burned TBSA (burned TBSA) ≥40% participated in this study. The peak torque and total work of quadriceps and knee flexors were calculated at 150°/sec using Biodex isokinetic dynamometer...
January 10, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28079176/adductor-canal-block-versus-femoral-nerve-block-for-total-knee-arthroplasty-a-meta-analysis-of-randomized-controlled-trials
#3
Duan Wang, Yang Yang, Qi Li, Shen-Li Tang, Wei-Nan Zeng, Jin Xu, Tian-Hang Xie, Fu-Xing Pei, Liu Yang, Ling-Li Li, Zong-Ke Zhou
Femoral nerve blocks (FNB) can provide effective pain relief but result in quadriceps weakness with increased risk of falls following total knee arthroplasty (TKA). Adductor canal block (ACB) is a relatively new alternative providing pure sensory blockade with minimal effect on quadriceps strength. The meta-analysis was designed to evaluate whether ACB exhibited better outcomes with respect to quadriceps strength, pain control, ambulation ability, and complications. PubMed, Embase, Web of Science, Wan Fang, China National Knowledge Internet (CNKI) and the Cochrane Database were searched for RCTs comparing ACB with FNB after TKAs...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078435/the-effects-of-therapeutic-exercises-on-pain-muscle-strength-functional-capacity-balance-and-hemodynamic-parameters-in-knee-osteoarthritis-patients-a-randomized-controlled-study-of-supervised-versus-home-exercises
#4
Tuğba Kuru Çolak, Bahar Kavlak, Onur Aydoğdu, Emir Şahin, Gönül Acar, İlkşan Demirbüken, Zübeyir Sarı, İlker Çolak, Güven Bulut, M Gülden Polat
The aim of the study was to compare the effects of low-intensity exercise programs for lower extremities, either supervised or at home, on pain, muscle strength, balance and the hemodynamic parameters of knee osteoarthritis (OA) patients. This randomized study included 78 patients with knee OA in 2 groups of supervised and home-based exercise program. Exercises were applied to the first group in the clinic as a group exercise program and were demonstrated to the second group to be performed at home. Before and after the 6-week exercise program, assessment was made of pain, quadriceps and hamstring muscle strengths, 6-min walk test (6MWT), and non-invasive hemodynamic parameters...
January 11, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28068520/impact-loading-following-quadriceps-strength-training-in-individuals-with-medial-knee-osteoarthritis-and-varus-alignment
#5
Crystal O Kean, Rana S Hinman, Tim V Wrigley, Boon-Whatt Lim, Kim L Bennell
BACKGROUND: Greater impact loading at initial contact is postulated to play a role in the progression of osteoarthritis. Quadriceps weakness is common in individuals with knee osteoarthritis and may contribute to high impact loading. The purpose of this study was to examine the effects of quadriceps strengthening on impact loading parameters. METHODS: Data from 97 individuals with knee osteoarthritis who participated in a randomized clinical trial examining effects of a 12-week quadriceps strengthening program was used to conduct this secondary exploratory analysis...
January 4, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28066619/clinical-management-of-chronic-obstructive-pulmonary-disease-patients-with-muscle-dysfunction
#6
REVIEW
Joaquim Gea, Carme Casadevall, Sergi Pascual, Mauricio Orozco-Levi, Esther Barreiro
Muscle dysfunction is frequently observed in chronic obstructive pulmonary disease (COPD) patients, contributing to their exercise limitation and a worsening prognosis. The main factor leading to limb muscle dysfunction is deconditioning, whereas respiratory muscle dysfunction is mostly the result of pulmonary hyperinflation. However, both limb and respiratory muscles are also influenced by other negative factors, including smoking, systemic inflammation, nutritional abnormalities, exacerbations and some drugs...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28063610/ultrasound-measurements-of-skeletal-muscle-architecture-are-associated-with-strength-and-functional-capacity-in-older-adults
#7
Isaac Selva Raj, Stephen R Bird, Anthony J Shield
The goal of this study was to determine whether ultrasound measures of muscle architecture can be used to infer strength and functional capacity in older adults. Thirty-six healthy older adults (aged 68.2 ± 5.3 y) undertook isokinetic dynamometry for isometric and isokinetic concentric knee extensor strength, the 6-m fast walk, timed up and go, stair climb and descent and vertical jump tests. Longitudinal brightness-mode ultrasound scans (probe frequency, 10 MHz) of the vastus lateralis, vastus intermedius, rectus femoris and gastrocnemius medialis were obtained, and muscle architecture measures (thickness, fascicle pennation angle and fascicle length) were correlated with the aforementioned strength and functional measures...
January 4, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28060927/acute-effects-of-three-neuromuscular-warm-up-strategies-on-several-physical-performance-measures-in-football-players
#8
Francisco Ayala, Ana Calderón-López, Juan Carlos Delgado-Gosálbez, Sergio Parra-Sánchez, Carlos Pomares-Noguera, Sergio Hernández-Sánchez, Alejandro López-Valenciano, Mark De Ste Croix
No studies have analysed the acute effects of the FIFA 11+ and Harmoknee warm-up programmes on major physical performance measures. The aim of this study was to analyse the acute (post-exercise) effects of the FIFA 11+, Harmoknee and dynamic warm-up routines on several physical performance measures in amateur football players. A randomized, crossover and counterbalanced study design was used to address the purpose of this study. A total of sixteen amateur football players completed the following protocols in a randomized order on separate days: a) FIFA 11+; b) Harmoknee; and c) dynamic warm-up (DWU)...
2017: PloS One
https://www.readbyqxmd.com/read/28060455/self-reported-quality-of-sleep-is-associated-with-physical-strength-among-community-dwelling-young-old-adults
#9
Katarzyna B Malinowska, Tome Ikezoe, Noriaki Ichihashi, Hidenori Arai, Kimihiko Murase, Kazuo Chin, Takahisa Kawaguchi, Yasuharu Tabara, Takeo Nakayama, Fumihiko Matsuda, Tadao Tsuboyama
AIM: The present study examined the association between self-reported quality of sleep (QOS) and physical function in community-dwelling young-old adults. METHODS: This cross-sectional study included 737 community-dwelling older adults aged 60 years and older (498 women, 239 men); age 68.3 ± 5.2 years (range 60-79 years). Participants completed a self-administered questionnaire, which included the Pittsburgh Sleep Quality Index, as well as information regarding sociodemographic characteristics, physical activity, smoking and alcohol consumption...
January 6, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28060273/induction-and-assessment-of-exertional-skeletal-muscle-damage-in-humans
#10
Michael R Deyhle, Jacob R Sorensen, Robert D Hyldahl
Contraction-induced muscle damage via voluntary eccentric (lengthening) contractions offers an excellent model for studying muscle adaptation and recovery in humans. Herein we discuss the design of an eccentric exercise protocol to induce damage in the quadriceps muscles, marked by changes in strength, soreness, and plasma creatine kinase levels. This method is simple, ethical, and widely applicable since it is performed in human participants and eliminates the interspecies translation of the results. Subjects perform 300 maximal eccentric contractions of the knee extensor muscles at a speed of 120°/sec on an isokinetic dynamometer...
December 11, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28060035/etiology-and-recovery-of-neuromuscular-fatigue-following-simulated-soccer-match-play
#11
Kevin Thomas, Jack Dent, Glyn Howatson, Stuart Goodall
PURPOSE: We profiled the etiology and recovery of neuromuscular fatigue post-simulated-soccer-match-play. METHODS: Fifteen semi-professional players completed a 90 min simulated soccer match. Pre-, immediately-post and at 24, 48 and 72 h participants completed a battery of neuromuscular, physical and perceptual tests. Perceived fatigue and muscle soreness were assessed via visual analogue scales. Maximum voluntary contraction (MVC) and twitch responses to electrical (femoral nerve) and magnetic (motor cortex) stimulation during isometric knee-extensor contractions and at rest were measured to assess central (voluntary activation, VA) and peripheral (quadriceps potentiated twitch force, Qtw,pot) fatigue, and responses to single and paired-magnetic stimuli were assessed to quantify corticospinal excitability and short-intracortical inhibition (SICI), respectively...
January 3, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28054322/creatine-loading-does-not-preserve-muscle-mass-or-strength-during-leg-immobilization-in-healthy-young-males-a-randomized-controlled-trial
#12
Evelien M P Backx, Roland Hangelbroek, Tim Snijders, Marie-Louise Verscheijden, Lex B Verdijk, Lisette C P G M de Groot, Luc J C van Loon
BACKGROUND: A short period of leg immobilization leads to rapid loss of muscle mass and strength. Creatine supplementation has been shown to increase lean body mass in active individuals and can be used to augment gains in muscle mass and strength during prolonged resistance-type exercise training. OBJECTIVE: Our objective was to investigate whether creatine loading can attenuate the loss of muscle mass and strength during short-term leg immobilization. METHODS: Healthy young men (n = 30; aged 23 ± 1 years; body mass index [BMI] 23...
January 5, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28051969/effects-of-adding-neuromuscular-electrical-stimulation-to-traditional-military-amputee-rehabilitation
#13
Laura A Talbot, Emily Brede, E Jeffrey Metter
BACKGROUND: Traumatic transtibial amputations lead to an early decline in the use and weight bearing of the residual limb. These changes result in progressive quadriceps muscle atrophy with strength loss that affects standing and walking. Neuromuscular electrical stimulation (NMES) may be useful as an adjunct to amputee prosthetic rehabilitation to maintain quadriceps muscle strength and mass. The objective of this pilot study was to compare the effects of a home-based NMES rehabilitation program plus the traditional military amputee rehabilitation program (TMARP) to the effects of TMARP alone on quadriceps muscle strength, functional mobility, and pain in military service members after a combat-related lower extremity amputation...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28040656/squat-test-performance-and-execution-in-children-with-and-without-cerebral-palsy
#14
M M Eken, J Harlaar, A J Dallmeijer, E de Waard, C A M van Bennekom, H Houdijk
BACKGROUND: Knowledge on lower extremity strength is imperative to informed decision making for children with cerebral palsy (CP) with mobility problems. However, a functional and clinically feasible test is not available. We aimed to determine whether the squat test is suitable for this purpose by investigating test performance and execution in children with cerebral palsy and typically developing (TD) peers. METHODS: Squat test performance, defined by the number of two-legged squats until fatigue (max 20), was assessed in twenty children with bilateral CP (6-19years; gross motor function classification system I-III) and sixteen TD children (7-16years)...
December 18, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/28038376/lean-muscle-volume-of-the-thigh-has-a-stronger-relationship-with-muscle-power-than-muscle-strength-in-women-with-knee-osteoarthritis
#15
Michael J Davison, Monica R Maly, Peter J Keir, Sandani M Hapuhennedige, Amie T Kron, Jonathan D Adachi, Karen A Beattie
BACKGROUND: Thigh lean muscle and intramuscular fat have been implicated in the impairment of physical function observed in people with knee osteoarthritis. We investigated the relationships of quadriceps and hamstrings intramuscular fat fraction and lean muscle volume with muscle power and strength, controlling for neuromuscular activation, and physical performance in women with knee OA. METHODS: Women (n=20) 55years or older with symptomatic, radiographic knee osteoarthritis underwent a 3...
November 25, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/28033291/adductor-canal-block-versus-femoral-nerve-block-combined-with-sciatic-nerve-block-as-an-anesthetic-technique-for-hindfoot-and-ankle-surgery-a-prospective-randomized-noninferiority-trial
#16
Han Bum Joe, Ho Sik Choo, Ji Sang Yoon, Sang Eon Oh, Jae Ho Cho, Young Uk Park
BACKGROUND: A femoral nerve block (FNB) in combination with a sciatic nerve block (SNB) is commonly used for anesthesia and analgesia in patients undergoing hindfoot and ankle surgery. The effects of FNB on motor function, related fall risk, and rehabilitation are controversial. An adductor canal block (ACB) potentially spares motor fibers in the femoral nerve, but the comparative effect on hindfoot and ankle surgeries between the 2 approaches is not yet well defined. We hypothesized that compared to FNB, ACB would cause less weakness in the quadriceps and produce similar pain scores during and after the operation...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28027679/the-comparison-of-telerehabilitation-and-face-to-face-rehabilitation-after-total-knee-arthroplasty-a-systematic-review-and-meta-analysis
#17
Shuihua Jiang, Jie Xiang, Xiuming Gao, Kaijin Guo, Baohua Liu
Introduction The objective of this study was to assess the efficacy of telerehabilitation for patients after total knee arthroplasty (TKA) compared with face-to-face rehabilitation. Methods Medline, SCOPUS, Google Scholar, EMBASE, Springer, Science Direct, and Cochrane databases were searched electronically. Relevant journals and references of studies included were hand-searched for randomized controlled trials (RCTs) regarding the efficacy of telerehabilitation on functional recovery in patients after TKA...
January 1, 2016: Journal of Telemedicine and Telecare
https://www.readbyqxmd.com/read/28010997/patellar-tendon-mechanical-properties-change-with-gender-body-mass-index-and-quadriceps-femoris-muscle-strength
#18
Serkan Taş, Seval Yılmaz, Mehmet Ruhi Onur, Abdullah Ruhi Soylu, Onur Altuntaş, Feza Korkusuz
OBJECTIVE: The purpose of this study is to assess the effect and correlation of gender, body mass index (BMI) and quadriceps femoris (QF) muscle strength on patellar tendon (PT) thickness and stiffness in healthy sedentary individuals. METHODS: This study was carried out with 67 (36 female, 31 male) healthy sedentary individuals between the ages of 18-44 (28.0 ± 7.5 years). The individuals included in the study were divided into two groups according to their gender and BMI (18...
December 20, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28005680/resistance-training-with-ankle-weight-cuffs-is-feasible-in-patients-with-acute-exacerbation-of-copd
#19
Linette Marie Kofod, Martin Døssing, Johnna Steentoft, Morten Tange Kristensen
PURPOSE: Quadriceps muscle weakness is a serious complication of physical inactivity following hospitalization due to acute exacerbations of chronic obstructive pulmonary disease (AECOPD). Preventing strength loss during AECOPD is therefore a high priority. We aimed to evaluate the feasibility of progressive knee-extension resistance training, using ankle weight cuffs on patients with AECOPD, based on prespecified criteria for feasibility. METHODS: Thirty-four patients (18 men, mean age 74 years, forced expiratory volume in 1 second = 33% predicted) with AECOPD participated in daily knee-extension strength training...
January 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/27992239/differential-effects-of-two-rehabilitation-programs-following-anterior-cruciate-ligament-reconstruction
#20
Igor Setuain, Mikel Izquierdo, Fernando Idoate, Eder Bikandi, Esteban M Gorostiaga, Per Aagaard, Eduardo L Cadore, Jesús Alfaro-Adrián
Context- The muscular function restoration related to the type of physical rehabilitation followed after anterior cruciate ligament reconstruction (ACLR) using autologous hamstring tendon graft in terms of strength and cross sectional area (CSA) remain controversial. Objective- To analyze the CSA and force output of quadriceps and hamstring muscles in subjects following either an Objective Criteria-Based rehabilitation (OCBR) algorithm or the usual care (UCR) for ACL rehabilitation in Spain, before and one year after undergoing an ACLR...
December 19, 2016: Journal of Sport Rehabilitation
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