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https://www.readbyqxmd.com/read/28733093/hydrotherapy-improves-pain-and-function-in-older-women-with-knee-osteoarthritis-a-randomized-controlled-trial
#1
João Marcos Dias, Lígia Cisneros, Rosângela Dias, Carolina Fritsch, Wellington Gomes, Leani Pereira, Mary Luci Santos, Paulo Henrique Ferreira
BACKGROUND: Currently, there is poor evidence of the effect of hydrotherapy alone on patients with hip or knee osteoarthritis. OBJECTIVES: The study aimed to assess the impact of hydrotherapy on pain, function, and muscle function in older women with knee osteoarthritis. METHODS: A randomized controlled trial was conducted to evaluate the efficacy of hydrotherapy in women with knee osteoarthritis. Seventy-three women aged 65 and older were randomized to hydrotherapy (n=36) or a control group (n=37)...
July 5, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28729887/whole-body-vibration-training-improves-balance-control-and-sit-to-stand-performance-among-middle-aged-and-older-adults-a-pilot-randomized-controlled-trial
#2
Ming-Chen Ko, Long-Shan Wu, Sangwoo Lee, Chien-Chun Wang, Po-Fu Lee, Ching-Yu Tseng, Chien-Chang Ho
BACKGROUND: Aging is associated with decreased balance, which increases falling risk. The objective of the current study was to determine the feasibility and effects of whole-body vibration (WBV) training on knee extensor muscle power, limits of stability, and sit-to-stand performance among community-dwelling middle-aged and older adults in the United States. METHODS: A randomized pilot study with participant blinding was conducted. Feasibility outcomes included recruitment and compliance rate...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28727641/decreased-average-power-of-the-hip-external-muscles-as-a-predictive-parameter-for-lower-extremity-injury-in-women-a-prospective-study
#3
Ruth Verrelst, Damien Van Tiggelen, Roel De Ridder, Erik Witvrouw
OBJECTIVE: To prospectively identify hip strength associated risk factors contributing to the development of lower extremity (LE) injury. DESIGN: Data were prospectively collected on healthy female physical education students. SETTING: This study was conducted in the institution of the University of Ghent. PARTICIPANTS: Eighty-nine female physical education students aged 19.53 ± 1.07 years. ASSESSMENT OF RISK FACTORS: Testing included isokinetic hip strength measurements of abductors, adductors, internal rotators, and external rotators (ERs)...
July 14, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28720481/knee-extension-and-flexion-strength-asymmetry-in-human-immunodeficiency-virus-positive-subjects-a-cross-sectional-study
#4
Vitor H F Oliveira, Susana L Wiechmann, Argéria M S Narciso, Rafael Deminice
BACKGROUND: Human Immunodeficiency Virus positive subjects present impairment in muscle function, neural activation, balance, and gait. In other populations, all of these factors have been associated with muscle strength asymmetry. OBJECTIVE: To investigate the existence of muscle strength asymmetry between dominant and non-dominant lower limbs and to determine the hamstrings-to-quadriceps strength ratio in Human Immunodeficiency Virus positive subjects. METHODS: In this cross-sectional study, 48 subjects were included (22 men and 26 women; mean age 44...
July 3, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28715403/improving-strength-power-muscle-aerobic-capacity-and-glucose-tolerance-through-short-term-progressive-strength-training-among-elderly-people
#5
Eva A Andersson, Per Frank, Marjan Pontén, Björn Ekblom, Maria Ekblom, Marcus Moberg, Kent Sahlin
This protocol describes the simultaneous use of a broad span of methods to examine muscle aerobic capacity, glucose tolerance, strength, and power in elderly people performing short-term resistance training (RET). Supervised progressive resistance training for 1 h three times a week over 8 weeks was performed by RET participants (71±1 years, range 65-80). Compared to a control group without training, the RET showed improvements on the measures used to indicate strength, power, glucose tolerance, and several parameters of muscle aerobic capacity...
July 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28714825/quadriceps-and-patient-reported-function-in-acl-reconstructed-patients-a-principal-component-analysis
#6
Grant E Norte, Jay N Hertel, Susan A Saliba, David R Diduch, Joseph M Hart
CONTEXT: Assessment of physical function for individuals after ACL reconstruction (ACL-R) is complex and warrants the use of diverse evaluation strategies. To maximize the efficiency of assessment, there is a need to identify tests that provide the most meaningful information about this population. OBJECTIVE: To investigate underlying constructs of quadriceps muscle function that uniquely describe aspects of performance in patients after ACL-R, and establish clinical thresholds for measures able to classify patients with and without ACL-R...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28707752/analysis-of-the-correlation-between-knee-extension-torque-and-patellar-tendon-elastic-property
#7
P Mannarino, K M M Lima, C R C Fontenelle, T T Matta, B F de Salles, R Simão, L F Oliveira
PURPOSE: Quadriceps strength and patellar tendon (PT) are directly linked and intimately related to daily activities and lower limb function. However, the correlation between knee extension torque (KT) and PT Young's modulus (E) measured directly is still unknown. METHOD: We used supersonic shearwave imaging (SSI) to evaluate the elastic property of PT in healthy young men and analysed its correlation with KT. Twenty-two healthy young males were included and both knees were examined...
July 14, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28704309/effect-of-three-different-muscle-action-training-protocols-on-knee-strength-ratios-and-performance
#8
Cassio V Ruas, Lee E Brown, Camila D Lima, Pablo B Costa, Ronei S Pinto
Hamstring to quadriceps (H:Q) ratios are often used to assess strength imbalances. The aims of this study were to compare three different muscle action training protocols on H:Q strength balance and functional performance. Forty untrained males (age: 22.87 ± 2.28 y, mass: 70.66 ± 11.049 kg, ht: 174.29 ± 6.90 cm) performed 6 weeks of training on an isokinetic dynamometer. They were randomly assigned to one of 4 groups; concentric quadriceps and concentric hamstring (CON/CON), eccentric quadriceps and eccentric hamstring (ECC/ECC), concentric quadriceps and eccentric hamstring (CON/ECC), or no training (CNTRL)...
July 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28704303/gain-of-length-loss-of-strength-alteration-in-muscle-strength-after-femoral-leg-lengthening-in-young-patients-a-prospective-longitudinal-observational-study
#9
Andreas H Krieg, Sebastian Gehmert, Olivia L Neeser, Xaver Kaelin, Bernhard M Speth
This study aimed to determine the alteration in maximum isokinetic torque in patients after intramedullary femoral leg lengthening. Thirty patients with a median leg-length discrepancy of 3.0 cm underwent femoral limb lengthening with an intramedullary motorized device. Maximum isokinetic, concentric torque of the extensors, and flexors of the knee was measured before (n=30) and 2 years after surgery (n=21). Postoperatively, a significant difference remained for the maximum isokinetic torque of the extensors (22%) between the lengthened and the normal leg, which might have been caused by muscle response to the distraction procedure itself in the form of higher stiffness, less immediate displacement, and inconsistent force relaxation properties...
July 12, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28689372/deficits-of-ankle-muscle-strength-not-found-in-children-adolescents-and-young-adults-with-haemophilic-ankle-arthropathy
#10
S Lobet, J-L Croisier, A-C Lantin, C Hermans, K Peerlinck, J Vandesande, J-B Pialat, K Deschamps
OBJECTIVES: Adequate management of haemophilia patients requires early detection of joint impairment in relatively asymptomatic patients. This study sought to quantify the impact of the ankle's structural impairment on muscle strength in children, adolescent and young adults with haemophilia (CAAwH). METHODS: Twenty-three CAAwH underwent bilateral magnetic resonance imaging (MRI) assessing the anatomical status of tibiotalar joint (TTJ) and subtalar joint (STJ) using the International Prophylaxis Study Group MRI scale...
July 9, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28682936/effects-of-wearing-a-compression-garment-during-night-sleep-on-recovery-from-high-intensity-eccentric-concentric-quadriceps-muscle-fatigue
#11
Yohei Shimokochi, Satoshi Kuwano, Taichi Yamaguchi, Hiroyuki Abutani, Norihiro Shima
This study aimed to investigate the effects of wearing a compression garment (CG) during night sleep on muscle fatigue recovery after high-intensity eccentric and concentric knee extensor exercises. Seventeen college male students participated in two experimental sessions under CG and non-CG (NCG) wearing conditions. Before night sleep under CG or NCG wearing conditions, the subjects performed a fatiguing protocol consisting of 10 sets of 10 repetitions of maximal isokinetic eccentric and concentric knee extensor contractions, with 30-second rest intervals between the sets...
July 3, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28681596/high-intensity-interval-training-combined-with-resistance-training-improves-physiological-capacities-strength-and-quality-of-life-in-multiple-sclerosis-patients-a-pilot-study
#12
Pierre Zaenker, Fabrice Favret, Evelyne Lonsdorfer, Guillaume Muff, Jérôme DE Seze, Marie-Eve Isner-Horobeti
BACKGROUND: Numerous studies have shown that mild-to-moderate intensity or resistance exercise training improves physical capacities such as, peak oxygen consumption, maximal tolerated power and strength in multiple sclerosis patients. However, few studies have evaluated the effects of high intensity interval training associated to with resistance training. Only few studies have analysed difference between men and women before and after combined training. Moreover, the evaluation of exercise between ambulatory multiple sclerosis patients without disability (EDSS 0- 3) and patients with disabilities (EDSS 3...
July 5, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28680370/effects-of-a-combined-protein-and-antioxidant-supplement-on-recovery-of-muscle-function-and-soreness-following-eccentric-exercise
#13
Stephen J Ives, Samuel Bloom, Alexs Matias, Noelle Morrow, Natalya Martins, Yookee Roh, Daniel Ebenstein, Gabriel O'Brien, Daniela Escudero, Kevin Brito, Leah Glickman, Scott Connelly, Paul J Arciero
BACKGROUND: An acute bout of eccentric contractions (ECC) cause muscle fiber damage, inflammation, impaired muscle function (MF) and muscle soreness (MS). Individually, protein (PRO) and antioxidant (AO) supplementation may improve some aspects of recovery from ECC, though have yet to be combined. We sought to determine if combined PRO and AO supplementation (PRO + AO) improves MS and MF following damaging ECC over PRO alone. METHODS: Sixty sedentary college-aged males participated in a randomized, single-blind, parallel design study of peak isometric torque (PIMT), peak isokinetic torque (PIKT), thigh circumference (TC), and muscle soreness (MS) of knee extensor muscles measured at baseline, immediately after and 1, 2, 6, and 24 h after completion of 100 maximal ECC...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28674921/power-output-and-fatigue-properties-using-spatially-distributed-sequential-stimulation-in-a-dynamic-knee-extension-task
#14
Marco Laubacher, Anil Efe Aksöz, Robert Riener, Stuart Binder-Macleod, Kenneth J Hunt
PURPOSE: The low power output and fatigue resistance during functional electrical stimulation (FES) limits its use for functional applications. The aim of this study was to compare the power output and fatigue properties of spatially distributed sequential stimulation (SDSS) against conventional single electrode stimulation (SES) in an isokinetic knee extension task simulating knee movement during recumbent cycling. METHODS: M. vastus lateralis and m. vastus medialis of eight able-bodied subjects were stimulated for 6 min on both legs with both setups...
July 3, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28673118/muscle-recruitment-patterns-of-the-subscapularis-serratus-anterior-and-other-shoulder-girdle-muscles-during-isokinetic-internal-and-external-rotations
#15
Sylvain Gaudet, Jonathan Tremblay, Mickael Begon
The aims of this study were to investigate the differences in peak muscle activity and recruitment patterns during high- and low-velocity, concentric and eccentric, internal and external isokinetic shoulder rotations. Electromyographic activity of the rotator cuff and eight superficial muscles of the shoulder girdle was recorded on 25 healthy adults during isokinetic internal and external shoulder rotation at 60°/s and 240°/s. Peak muscle activity, electromyographic envelopes and peak isokinetic moments were analyzed using three-factor ANOVA and statistical parametric mapping...
July 4, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28669773/development-of-a-methodological-approach-for-the-characterization-of-bioaerosols-in-exhaust-air-from-pig-fattening-farms-with-maldi-tof-mass-spectrometry
#16
Katharina Druckenmüller, Andrea Gärtner, Udo Jäckel, Kerstin Klug, Johannes Schiffels, Klaus Günther, Gereon Elbers
In this paper, we evaluated matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) as a cultivation-independent, routinely applicable approach to identify microbial fractions in bioaerosol emission samples. We developed a streamlined protocol in line with the German state-of-the-art impingement sampling guideline. Following isokinetic sampling, a fast and reliable pre-treatment methodology involving a series of cascade filtration steps was implemented, which produced fractions for spectrometric measurement devoid of interfering substances...
May 11, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28667897/rate-of-force-development-and-muscle-activation-of-trunk-muscles-in%C3%A2-women-with-and-without-low-back-pain-a-case-control-study
#17
Denise Martineli Rossi, Mary Hellen Morcelli, Adalgiso Coscrato Cardozo, Benedito Sérgio Denadai, Mauro Gonçalves, Marcelo Tavella Navega
OBJECTIVE: To evaluate the rate of force development (RFD) and the rate of electromyography rise (RER) of global and local trunk muscles in women with and without low back pain. DESIGN: Cross-sectional study. SETTING: Laboratory setting. PARTICIPANTS: Twenty-eight women divided into low back pain (LBP, n = 14) and control groups (CG, n = 14) participated in this study. MAIN OUTCOME MEASURES: Subjects performed isometric contractions of trunk using an isokinetic dynamometer, and simultaneously the electromyography (EMG) signals were collected for global (rectus abdominis and longissimus thoracic) and local (internal oblique and multifidus) muscles...
July 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28667211/criteria-for-return-to-sport-after-anterior-cruciate-ligament-reconstruction-with-lower-reinjury-risk-cr-stal-study-protocol-for-a-prospective-observational-study-in-france
#18
Alexandre J M Rambaud, Bertrand Semay, Pierre Samozino, Jean-Benoît Morin, Rodolphe Testa, Rémi Philippot, Jérémy Rossi, Pascal Edouard
INTRODUCTION: The decision regarding when to return to sport after an anterior cruciate ligament reconstruction (ACLR) is an important one. Using a variety of subjective and objective parameters, various attempts have been made to determine an optimal timeline for a return to sport after ACLR, but none have been validated.The aim of the present study is therefore to determine which criteria or combination of criteria could allow to return to sport with the lowest possible risk of reinjury...
June 30, 2017: BMJ Open
https://www.readbyqxmd.com/read/28662152/does-external-pneumatic-compression-treatment-between-bouts-of-overreaching-resistance-training-sessions-exert-differential-effects-on-molecular-signaling-and-performance-related-variables-compared-to-passive-recovery-an-exploratory-study
#19
Cody T Haun, Michael D Roberts, Matthew A Romero, Shelby C Osburn, Christopher B Mobley, Richard G Anderson, Michael D Goodlett, David D Pascoe, Jeffrey S Martin
PURPOSE: We sought to compare the effects of external pneumatic compression (EPC) and sham when used concurrently with resistance training on performance-related outcomes and molecular measures related to recovery. METHODS: Twenty (N = 20) resistance-trained male participants (aged 21.6±2.4 years) were randomized to balanced sham or EPC intervention groups. The protocol consisted of 3 consecutive days of heavy, voluminous back squat exercise followed by EPC/sham treatment (Days2-4) and 3 consecutive days of recovery (Days5-7) with EPC/sham only on Days5-6...
2017: PloS One
https://www.readbyqxmd.com/read/28661545/nonlinear-relationship-between-isokinetic-muscle-strength-and-activity-limitations-in-patients-with-knee-osteoarthritis-results-of-the-amsterdam-osteoarthritis-cohort
#20
Lisa M Edelaar, Jaap H van Dieën, Martin van der Esch, Leo D Roorda, Joost Dekker, Willem F Lems, Marike van der Leeden
OBJECTIVE: To investigate whether relationships between upper leg muscle strength and activity limitations are non-linear in patients with knee osteoarthritis, and, if so, to determine muscle strength thresholds for limitations in daily activities. DESIGN: Baseline data were used for 562 patients with knee osteoarthritis in the Amsterdam-Osteoarthritis cohort. Upper leg muscle strength (Nm/kg) was measured isokinetically. Activity limitations were measured with the timed Get Up and Go test and timed Stair Climb Test, subdivided into stair-ascent and stair-descent...
June 29, 2017: Journal of Rehabilitation Medicine
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