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Dynamometry

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https://www.readbyqxmd.com/read/28431618/muscle-strength-and-power-in-persons-with-multiple-sclerosis-a-systematic-review-and-meta-analysis
#1
REVIEW
Mlk Jørgensen, U Dalgas, I Wens, L G Hvid
BACKGROUND: Multiple sclerosis (MS) is a chronic disease in the central nervous system which causes a number of physical symptoms including impairments of muscle mechanical function (muscle strength, muscle power and explosive muscle strength (~rate of force development, RFD)). However, a full overview of the existing knowledge regarding muscle mechanical function in persons with MS (PwMS) is still pending. OBJECTIVES: To systematically review 1) the psychometric properties of isokinetic dynamometry testing in PwMS, and 2) studies comparing muscle mechanical function in PwMS to matched healthy controls (HC)...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28417202/cardiorespiratory-fitness-and-muscle-strength-in-pancreatic-cancer-patients
#2
Dorothea Clauss, Christine Tjaden, Thilo Hackert, Lutz Schneider, Cornelia M Ulrich, Joachim Wiskemann, Karen Steindorf
PURPOSE: Cancer patients frequently experience reduced physical fitness due to the disease itself as well as treatment-related side effects. However, studies on physical fitness in pancreatic cancer patients are missing. Therefore, we assessed cardiorespiratory fitness and muscle strength of pancreatic cancer patients. METHODS: We included 65 pancreatic cancer patients, mostly after surgical resection. Cardiorespiratory fitness was assessed using cardiopulmonary exercise testing (CPET) and 6-min walk test (6MWT)...
April 17, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28395183/interplay-between-body-stabilisation-and-quadriceps-muscle-activation-capacity
#3
Theodoros M Bampouras, Neil D Reeves, Vasilios Baltzopoulos, Constantinos N Maganaris
The study aimed to distinguish the effect of stabilisation and muscle activation on quadriceps maximal isometric voluntary contraction (MVC) torque generation. Nine subjects performed (a) an MVC with restrained leg and pelvis (Typical MVC), (b) a Typical MVC with handgrip (Handgrip MVC), (c) an MVC focusing on contracting the knee extensors only (Isolated knee extension MVC), and (d) an MVC with unrestrained leg and pelvis (Unrestrained MVC). Torque and activation capacity between conditions were compared with repeated measures ANOVA and dependent t-tests...
March 22, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28390845/prevalence-of-malnutrition-in-adult-patients-previously-treated-with%C3%A2-allogeneic-hematopoietic-stem-cell-transplantation
#4
Thibault Brotelle, Richard Lemal, Aurélie Cabrespine, Cécile Combal, Eric Hermet, Aurélie Ravinet, Jacques-Olivier Bay, Corinne Bouteloup
INTRODUCTION: Malnutrition is common after allogeneic hematopoietic stem cell transplantation (allo-HSCT), and is a well-known prognostic factor for survival. The nutritional status of patients in a long term after allo-HSCT is less well documented. The main objective of this study was to evaluate the prevalence of malnutrition in adult patients who underwent allo-HSCT more than one year ago. Secondary objectives were to assess body composition, muscle strength, and factors associated with malnutrition...
March 28, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28389120/reference-equations-for-handgrip-strength-normative-values-in-young-adult-and-middle-aged-subjects
#5
Jordão Lopes, Samantha Torres Grams, Edy Floriano da Silva, Luana Adriano de Medeiros, Christina May Moran de Brito, Wellington Pereira Yamaguti
BACKGROUND & AIMS: Handgrip strength (HS) has been widely used as a functionality parameter of the upper limbs (UL) and general health. The measurement of HS by dynamometry is a low cost, non-invasive method of simple applicability, widely used in pulmonary rehabilitation and in critical care units. However, there are no reports in the literature of reference equations for the Brazilian population involving young and middle-aged adults. The aim of this study was to establish reference equations to predict normal HS for young and middle-aged adults through demographic and anthropometric data...
March 24, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28361744/admission-handgrip-strength-predicts-functional-decline-in-hospitalized-patients
#6
Thiare Olguín, Daniel Bunout, María Pía de la Maza, Gladys Barrera, Sandra Hirsch
PROBLEM: Up to 35% of hospitalized patients may experience functional decline during or after hospitalization. Subjective Global Assessment (SGA) and handgrip strength at admission, have been proposed as simple and accessible tools to predict functional decline, but there are few studies in hospitalized patients to confirm these findings. OBJECTIVE: To assess the predictive value of handgrip strength at hospital admission, on functional decline after 30 days. METHODS: 125 non-critical patients hospitalized for medical and surgical conditions, were studied in El Pino hospital in Santiago, Chile...
February 2017: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28353085/alterations-in-mechanical-properties-of-the-patellar-tendon-is-associated-with-pain-in-athletes-with-patellar-tendinopathy
#7
W C Lee, Z J Zhang, L Masci, G Y F Ng, Siu Ngor Fu
PURPOSE: To compare tendon strain and stiffness between athletes with patellar tendinopathy and healthy controls, and explore whether the intensity of pain and dysfunction were related to the mechanical properties of the tendon. METHODS: Thirty-four male athletes with patellar tendinopathy and 13 healthy controls matched by age and activity levels were recruited. The in vivo mechanical properties of the patellar tendon were examined by ultrasonography and dynamometry...
March 28, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28348529/sport-specific-capacity-to-use-elastic-energy-in-the-patellar-and-achilles-tendons-of-elite-athletes
#8
Hans-Peter Wiesinger, Florian Rieder, Alexander Kösters, Erich Müller, Olivier R Seynnes
Introduction: During running and jumping activities, elastic energy is utilized to enhance muscle mechanical output and efficiency. However, training-induced variations in tendon spring-like properties remain under-investigated. The present work extends earlier findings on sport-specific profiles of tendon stiffness and cross-sectional area to examine whether years of distinct loading patterns are reflected by tendons' ability to store and return energy. Methods:Ultrasound scans were performed to examine the morphological features of knee extensor and plantar flexor muscle-tendon units in elite ski jumpers, distance runners, water polo players, and sedentary controls...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28340163/does-cervical-interlaminar-epidural-steroid-injection-with-low-dose-lidocaine-cause-objective-upper-extremity-weakness-a-preliminary-study
#9
Zachary L McCormick, Ariana Nelson, Mark C Kendall, Robert J McCarthy, Geeta Nagpal, David R Walega
Objective. : Low-dose local anesthetic is often used in cervical interlaminar epidural steroid injections (CIESI), yet its effect on upper extremity strength has not been studied. The presence of consequent weakness has potential implications for postprocedure safety. This study aimed to determine whether low-dose lidocaine in a C7-T1 CIESI causes objective weakness. Design. : Prospective case series. Setting. : Academic pain center...
March 18, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28333173/functional-and-volumetric-analysis-of-the-pectoralis-major-muscle-after-submuscular-breast-augmentation
#10
Ana Claudia Roxo, Fabio Xerfan Nahas, Nadia Cristina Pinheiro Rodrigues, José Inácio Salles, Victor Rodrigues Amaral Cossich, Claudio Cardoso de Castro, Jose Horacio Aboudib, Ruy Garcia Marques
Background: Dual plane breast augmentation is a technical variation of the submuscular plane described as a technique that reduces contour deformities due to contraction of the pectoralis major muscle and lower risk of double-bubble deformity associated with breast ptosis. Despite improvement in the aesthetic aspect, there is still no consensus whether this technique affects the function of the pectoralis major muscle. Objectives: The aim of this study was to correlate functional with volumetric changes associated with dissection of the muscle origin in submuscular breast augmentation...
January 20, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28314618/drop-punt-kicking-induces-eccentric-knee-flexor-weakness-associated-with-reductions-in-hamstring-electromyographic-activity
#11
Steven J Duhig, Morgan D Williams, Geoffrey M Minett, David Opar, Anthony J Shield
OBJECTIVES: To examine the effect of 100 drop punt kicks on isokinetic knee flexor strength and surface electromyographic activity of bicep femoris and medial hamstrings. DESIGN: Randomized control study. METHODS: Thirty-six recreational footballers were randomly assigned to kicking or control groups. Dynamometry was conducted immediately before and after the kicking or 10min of sitting (control). RESULTS: Eccentric strength declined more in the kicking than the control group (p<0...
September 20, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28298464/the-achilles-tendon-is-mechanosensitive-in-older-adults-adaptations-following-14%C3%A2-weeks-versus-1-5%C3%A2-years-of-cyclic-strain-exercise
#12
Gaspar Epro, Andreas Mierau, Jonas Doerner, Julian A Luetkens, Lukas Scheef, Guido M Kukuk, Henning Boecker, Constantinos N Maganaris, Gert-Peter Brüggemann, Kiros Karamanidis
The aging musculoskeletal system experiences a general decline in structure and function, characterized by a reduced adaptability to environmental stress. We investigated whether the older human Achilles tendon (AT) demonstrates mechanosensitivity (via biomechanical and morphological adaptations) in response to long-term mechanical loading. Thirty-four female adults (60-75 years) were allocated to either a medium-term (14 weeks; N=21) high AT strain cyclic loading exercise intervention or a control group (N=13), with 12 participants continuing with the intervention for 1...
March 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28296952/fatness-mediates-the-influence-of-muscular-fitness-on-metabolic-syndrome-in-colombian-collegiate-students
#13
Antonio García-Hermoso, Hugo Alejandro Carrillo, Katherine González-Ruíz, Andrés Vivas, Héctor Reynaldo Triana-Reina, Javier Martínez-Torres, Daniel Humberto Prieto-Benavidez, Jorge Enrique Correa-Bautista, Jeison Alexander Ramos-Sepúlveda, Emilio Villa-González, Mark D Peterson, Robinson Ramírez-Vélez
The purpose of this study was two-fold: to analyze the association between muscular fitness (MF) and clustering of metabolic syndrome (MetS) components, and to determine if fatness parameters mediate the association between MF and MetS clustering in Colombian collegiate students. This cross-sectional study included a total of 886 (51.9% women) healthy collegiate students (21.4 ± 3.3 years old). Standing broad jump and isometric handgrip dynamometry were used as indicators of lower and upper body MF, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28289890/kinematic-analysis-of-stair-climbing-in-rotating-platform-cruciate-retaining-and-posterior-stabilized-mobile-bearing-total-knee-arthroplasties
#14
Koji Murakami, Satoshi Hamai, Ken Okazaki, Satoru Ikebe, Hiroyuki Nakahara, Hidehiko Higaki, Takeshi Shimoto, Hideki Mizu-Uchi, Umito Kuwashima, Yukihide Iwamoto
INTRODUCTION: The aim of our study was to compare and contrast the effects of two types of mobile-bearing total knee arthroplasties (TKA), namely, the cruciate-retaining (CR) and posterior-stabilized (PS) TKAs, on clinical outcomes and in vivo kinematics during stair climbing. MATERIALS AND METHODS: The Press-Fit Condylar Sigma rotating platform was used for both CR and PS TKAs. Patient-reported outcomes were assessed using the 2011 Knee Society Score. Quadriceps muscle strength was evaluated by isokinetic dynamometry...
May 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28280974/post-absorptive-muscle-protein-turnover-affects-resistance-training-hypertrophy
#15
Paul T Reidy, Michael S Borack, Melissa M Markofski, Jared M Dickinson, Christopher S Fry, Rachel R Deer, Elena Volpi, Blake B Rasmussen
PURPOSE: Acute bouts of resistance exercise and subsequent training alters protein turnover in skeletal muscle. The mechanisms responsible for the changes in basal post-absorptive protein turnover and its impact on muscle hypertrophy following resistance exercise training are unknown. Our goal was to determine whether post-absorptive muscle protein turnover following 12 weeks of resistance exercise training (RET) plays a role in muscle hypertrophy. In addition, we were interested in determining potential molecular mechanisms responsible for altering post-training muscle protein turnover...
May 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28265165/reliability-of-lower-extremity-muscle-strength-measurements-with-handheld-dynamometry-in-stroke-patients-during-the-acute-phase-a-pilot-reliability-study
#16
Hsiao-Ching Yen, Jer-Junn Luh, Ting Teng, Guan-Shuo Pan, Wen-Shiang Chen, Chiang-Chang Hsun, Jiann-Shing Jeng
[Purpose] No literature has described a suitable method for measuring muscle strength in a supine position during acute phase after stroke. This study investigated the feasibility and reliability of using a commercial handheld dynamometer to measure the muscle strengths of the hip flexor, knee extensor, and dorsiflexor in the supine position with a modified method for patients at a stroke intensive care center within 7 days of stroke onset. [Subjects and Methods] Fifteen persons with acute stroke participated in this cross-sectional study...
February 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28255442/validity-and-test-retest-reliability-of-a-novel-simple-back-extensor-muscle-strength-test
#17
Amy T Harding, Benjamin Kurt Weeks, Sean A Horan, Andrew Little, Steven L Watson, Belinda Ruth Beck
OBJECTIVES: To develop and determine convergent validity and reliability of a simple and inexpensive clinical test to quantify back extensor muscle strength. METHODS: Two testing sessions were conducted, 7 days apart. Each session involved three trials of standing maximal isometric back extensor muscle strength using both the novel test and isokinetic dynamometry. Lumbar spine bone mineral density was examined by dual-energy X-ray absorptiometry. Validation was examined with Pearson correlations (r)...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/28244552/prevalence-of-sarcopenia-in-community-dwelling-chilean-elders-according-to-an-adapted-version-of-the-european-working-group-on-sarcopenia-in-older-people-ewgsop-criteria
#18
L Lera, C Albala, H Sánchez, B Angel, M J Hormazabal, C Márquez, P Arroyo
BACKGROUND: Sarcopenia is the progressive loss of mass and skeletal muscle strength and has serious consequences on older people's health. The Chilean older population has a high life-expectancy, but the prevalence of functional dependence is also high. OBJECTIVE: To determine the prevalence of sarcopenia in Chilean older adults and its relationship with age, gender, and body mass index (BMI). DESIGN: Cross-sectional study. SETTING: Community...
2017: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/28229572/coenzyme-q10-does-not-prevent-exercise-induced-muscle-damage-and-oxidative-stress-in-sedentary-men
#19
Nilsel Okudan, Muaz Belviranli, Savaş Torlak
BACKGROUND: The objective of this study was to examine the effects of coenzyme Q10 (CoQ10) supplementation on exercise-induced muscle damage and oxidative stress in sedentary young men. In this study, a total of twenty one sedentary and healthy young men participated. METHODS: Participants were assigned at random to a CoQ10 or a placebo group employing a double-blind method. Those in the CoQ10 group ingested 200 mg CoQ10 per day for 4 weeks. Those in the placebo group ingested the same dosage of a placebo...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28198046/muscle-fatigability-and-depressive-symptoms-in-later-life
#20
Patrick J Brown, Dala Badreddine, Steven P Roose, Bret Rutherford, Hilsa N Ayonayon, Kristine Yaffe, Eleanor M Simonsick, Bret Goodpaster
OBJECTIVE: Fatigability is the degree to which performance decreases during a specific activity of a given intensity and duration. Depression is known to heighten subjective fatigue, but whether its association with physical fatigability is unknown. Further, whether fatigability is a precursor or risk factor for the development of subsequent depressive symptoms is also unclear. METHODS: Data are from the Health Aging and Body Composition Study with fatigability assessed using isokinetic dynamometry of the knee extensors at year 3, and depressive symptoms ascertained longitudinally using the Center for Epidemiologic Studies Depression (CES-D) scale...
February 15, 2017: International Journal of Geriatric Psychiatry
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