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https://www.readbyqxmd.com/read/28339407/upper-extremity-muscle-activation-in-children-with-unilateral-cerebral-palsy-during-an-auditory-cued-repetitive-task-effects-on-bimanual-coordination
#1
Jeanne Charles
PURPOSE: The aim of this exploratory study was to investigate mirror muscle activation in the upper limbs of children with unilateral cerebral palsy during an auditory-cued repetitive squeezing task and to compare upper limb muscle activation patterns to typically developing peers engaged in the same task. METHODS: A convenience sample of six children with unilateral cerebral palsy and six typically developing peers (7-17 y) participated in the study. Muscle activity was measured using a 16 channel Zerowire EMG system (Noraxon, USA Inc...
2017: Journal of Pediatric Rehabilitation Medicine
https://www.readbyqxmd.com/read/28338383/inter-session-reliability-of-isokinetic-strength-testing-in-knee-and-elbow-extension-and-flexion-using-the-bte-primusrs
#2
Alexander Törpel, Tim Becker, Angelina Thiers, Dennis Hamacher, Lutz Schega
CONTEXT: The use of isokinetic dynamometers playing an important role in different settings of sports and medicine. Therefore, a high reliability of these devices is required. OBJECTIVE: The aim of this study was to examine the inter-session reliability of the dynamometer BTE PrimusRS regarding to the isolated single-joint exercises extension / flexion of the knee and elbow for isokinetic testing. DESIGN: Inter-session reliability. SETTING: Clinical settings and sports science...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28330816/the-prospective-evaluation-of-changes-in-fatty-infiltration-and-shoulder-strength-in-nonsurgically-treated-rotator-cuff-tears
#3
Yoshihiro Nakamura, Shin Yokoya, Yohei Harada, Katsunori Shiraishi, Nobuo Adachi, Mitsuo Ochi
BACKGROUND: The purpose of this study was to evaluate the relationship of fatty infiltration in rotator cuff muscles and shoulder strength in rotator cuff tears and these changes during nonsurgical treatment. METHODS: Fifty-three shoulders from 47 patients (mean age: 69.9 years) diagnosed with rotator cuff tears by magnetic resonance imaging (MRI) were treated nonsurgically. The degrees of fatty infiltration in supraspinatus (SSP) and infraspinatus (ISP) muscles were graded by the modified Goutallier classification (grade 0-1, grade 2-3, or grade 4)...
March 19, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28330635/the-association-between-muscle-weakness-and-incident-diabetes-in%C3%A2-older-mexican-americans
#4
Ryan McGrath, Brenda M Vincent, Soham Al Snih, Kyriakos S Markides, Mark D Peterson
OBJECTIVES: A natural decline of muscle strength occurs during the aging process; however, preserving muscle strength may lower the rate of many preventable diseases such as diabetes, especially in higher risk populations. The purpose of this study was to examine the sex-specific association between muscle weakness and incident diabetes in older Mexican Americans. DESIGN: Observational, longitudinal study. SETTING: Urban and rural households in the Southwestern United States...
March 18, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28329157/low-normalized-grip-strength-is-a-biomarker-for-cardiometabolic-disease-and-physical-disabilities-among-u-s-and-chinese-adults
#5
Mark D Peterson, Kate Duchowny, Qinqin Meng, Yafeng Wang, Xinxin Chen, Yaohui Zhao
Background: Evidence highlights the importance of muscular strength as a protective factor for health and function across aging populations. The purpose of this study was to examine the extent to which low normalized grip strength (NGS) serves as a biomarker for both cardiometabolic disease and physical disability in U.S. and Chinese adults. Methods: Middle aged and older adults from the U.S. National Health and Nutrition Examination Survey 2011-2012 and 2013-2014 combined surveys (n = 4,544), and the 2011 wave of the China Health and Retirement Longitudinal Study (n = 6,030) were included...
March 10, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28327461/muscle-strength-is-impaired-in-men-but-not-in-women-living-with-hiv-taking-antiretroviral-therapy
#6
Vitor Hf Oliveira, Susana L Wiechmann, Argéria Ms Narciso, Allison R Webel, Rafael Deminice
BACKGROUND: There is evidence that HIV Antiretroviral Therapy adverse effects may be sex-dependent, but data examing these sex differences in muscle strength is scarce. Our aim was to compare dynamic and isokinetic parameters of muscle strength between HIV-infected men and women to HIV-uninfected subjects. METHODS: In this cross-sectional study, muscle strength was evaluated in 44 HIV-infected (20 men, 24 women) and 25 age-, race- and body mass index-matched HIV-uninfected subjects (11 men, 14 women)...
March 22, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28325824/persistence-of-myopathy-in-cushing-s-syndrome-evaluation-of-the-german-cushing-s-registry
#7
Christina Maria Berr, Mareike R Stieg, Timo Deutschbein, Marcus Quinkler, Ralf Schmidmaier, Andrea Osswald, Nicole Reisch, Katrin Ritzel, Christina Dimopoulou, Julia Fazel, Stefanie Hahner, Gunter K Stalla, Felix Beuschlein, Martin Reincke
BACKGROUND: Cushing's syndrome (CS) is characterized by an excessive secretion of glucocorticoids that results in a characteristic clinical phenotype. One feature of clinical hypercortisolism is breakdown of protein metabolism translating into clinical consequences including glucocorticoid induced myopathy. While surgery is effective in control of cortisol excess, the effect of biochemical remission on muscular function is yet unclear. METHODS: In a cross-sectional study we analyzed 47 patients with CS during the florid phase (ActiveCS)...
March 21, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28325433/reliability-of-the-grip-strength-coefficient-of-variation-for-detecting-sincerity-in-normal-and-blocked-median-nerve-in-healthy-adults
#8
N J Wachter, M Mentzel, R Hütz, J Gülke
In the assessment of hand and upper limb function, detecting sincerity of effort (SOE) for grip strength is of major importance to identifying feigned loss of strength. Measuring maximal grip strength with a dynamometer is very common, often combined with calculating the coefficient of variation (CV), a measure of the variation over the three grip strength trials. Little data is available about the relevance of these measurements in patients with median nerve impairment due to the heterogeneity of patient groups...
April 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28324754/effects-of-sit-to-stand-training-combined-with-transcutaneous-electrical-stimulation-on-spasticity-muscle-strength-and-balance-ability-in-patients-with-stroke-a-randomized-controlled-study
#9
Kyoung-Sim Jung, Tae-Sung In, Hwi-Young Cho
Sit-to-stand is a fundamental movement of human being for performing mobility and independent activity. However, Stroke people symptoms experience difficulty in conducting the sit-to-stand due to paralysis and especially ankle spasticity. Recently, transcutaneouselectrical- stimulation (TENS) is used to reduce pain but also to manage spasticity. The purpose of this study was to determine (1) whether TENS would lead to ankle spasticity reduction and (2) whether sit-to-stand training combined with TENS would improve spasticity, muscle strength and balance ability in stroke patients...
March 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28320574/standardized-method-to-measure-muscle-force-at-the-bedside-in-hemodialysis-patients
#10
Jean-Sébastien Souweine, Agathe Boudet, Leila Chenine, Helene Leray, Annie Rodriguez, Georges Mourad, Jacques Mercier, Jean-Paul Cristol, Maurice Hayot, Fares Gouzi
OBJECTIVES: In hemodialysis, diminution of muscle strength constitutes a major prognostic factor of mortality. Currently, measurement of quadriceps isometric maximal voluntary force (MVF) represents the reference method to investigate muscle strength. However, reduction of MVF is rarely detected in these patients due to the absence of portative bedside tools in clinical practice. The purposes of this study were therefore to assess the agreement of a belt-stabilized handheld dynamometer (HHD) with the dynamometer chair (reference method) and to determine intratester and intertester reliability of the quadriceps MVF measurements using belt-stabilized HHD in healthy subjects and in hemodialysis patients...
March 17, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28306145/functional-status-modifies-the-association-of-blood-pressure-with-death-in-elders-health-and-retirement-study
#11
Chenkai Wu, Ellen Smit, Carmen A Peralta, Harini Sarathy, Michelle C Odden
OBJECTIVE: To examine whether grip strength, gait speed, and the combination of the two physical functioning measures modified the association of systolic BP (SBP) and diastolic BP (DBP) with mortality. DESIGN: Nationally representative cohort study. SETTING: Health and Retirement Study. PARTICIPANTS: 7,492 U.S. adults aged ≥65 years. MEASUREMENTS: Grip strength was measured by a hand dynamometer and classified as normal (≥16 kg for female; ≥26 kg for male) and weak...
March 17, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28303380/nutritional-and-functional-factors-as-prognostic-of-surgical-cancer-patients
#12
Jéssica Härter, Silvana Paiva Orlandi, Maria Cristina Gonzalez
PURPOSE: We evaluated phase angle, sarcopenia, and handgrip strength as prognostic factors of postoperative morbimortality in patients with cancer. METHODOLOGY: We conducted a prospective study with 60 oncology patients admitted for elective surgery between November 2015 and May 2016. We calculated the standardized phase angle (SPA) and the skeletal mass index of the subjects based on their bioelectrical impedance tests. Handgrip strength (HGS) was measured using a hydraulic dynamometer...
March 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28298168/comparison-of-two-methodological-approaches-for-the-mechanical-analysis-of-single-joint-isoinertial-movement-using-a-customised-isokinetic-dynamometer
#13
Mathieu Plautard, Gaël Guilhem, Vincent Fohanno, Antoine Nordez, Christophe Cornu, Arnaud Guével
Compared to isokinetic and isometric tests, isoinertial movements have been poorly used to assess single-joint performance. Two calculation procedures were developed to estimate mechanical performance during single-joint isoinertial movements performed on a customised isokinetic dynamometer. The results were also compared to appreciate the effects of measurement systems and calculation procedures. Five participants performed maximal knee extensions at four levels of resistance (30, 50, 70 and 90% of the one-repetition maximum, 1-RM)...
March 16, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28298058/effect-of-pitching-consecutive-days-in-youth-fast-pitch-softball-tournaments-on-objective-shoulder-strength-and-subjective-shoulder-symptoms
#14
S Andrew Skillington, Robert H Brophy, Rick W Wright, Matthew V Smith
BACKGROUND: The windmill pitching motion has been associated with risk for shoulder injury. Because there are no pitching limits on youth fast-pitch softball pitchers, these athletes often pitch multiple games across consecutive days. Strength changes, fatigue levels, and shoulder pain that develop among female fast-pitch pitchers over the course of consecutive days of pitching have not been investigated. HYPOTHESIS: Over the course of 2- and 3-day fast-pitch softball tournaments, pitchers will develop progressive objective weakness and increased subjective shoulder fatigue and pain without complete recovery between days...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28296226/diabetic-polyneuropathy-is-a-risk-factor-for-decline-of-lower-extremity-strength-in-patients-with-type-2-diabetes
#15
Takuo Nomura, Tomoyasu Ishiguro, Masayoshi Ohira, Yukio Ikeda
AIMS/INTRODUCTION: The present study elucidated the effect of diabetic polyneuropathy (DPN) on lower extremity strength in a wide age range of type 2 diabetic patients. MATERIALS AND METHODS: Participants (n = 1,442) were divided into three age groups (30-49 years, 50-69 years, and 70-87 years), and comparisons were made separately for each sex. Lower extremity strength was measured in terms of knee extension force (KEF) with a hand-held dynamometer. KEF was compared according to the presence or absence of DPN...
March 14, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28294692/lower-extremity-isokinetic-strength-ratios-of-elite-springboard-and-platform-diving-athletes
#16
Amilton Vieira, Savio Alex, André Martorelli, Lee E Brown, Ricardo Moreira, Martim Bottaro
OBJECTIVES: The purpose of the present study was to examine knee extensor and flexor muscle strength ratios of an elite group of diving athletes. METHODS: Sixteen divers (10 females and 6 males) from the Brazil national team were assessed for lower-body strength. They had participated in international competitions such as the 2016 Olympic Games and 2015 Pan American Games. The dynamic concentric torque of their knee flexor and extensor muscles were evaluated using a Biodex isokinetic dynamometer...
March 15, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28291448/reliability-responsiveness-and-criterion-validity-of-the-kiio-sensor-a-new-tool-for-assessment-of-muscle-function
#17
Patrick Grabowski, Michelle Narveson, Stephen Siegle
Musculoskeletal injuries are a leading cause of disability in both the general population and military, and the ability to effectively quantify musculoskeletal function remains problematic. The aim of the current study is to investigate the reliability, responsiveness, and criterion validity of the kiio Sensor for measurement of muscle strength, a key aspect of comprehensive functional assessment. Forty-four (24 male, 20 female) physically active civilian adults (mean [SD] = 21.2 [1.5] years of age) with no history of upper extremity injuries in the last year and no current complaints of pain, weakness, or functional limitation completed two sessions of maximum shoulder external rotation contractions...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28291438/isokinetic-evaluation-of-wrist-muscle-strength-in-patients-of-carpal-tunnel-syndrome
#18
Mehmet Ağırman, Adnan Kara, Oğuz Durmuş, İlknur Saral, Engin Çakar
OBJECTIVES: This study aims to investigate the isokinetic characteristics of wrist strength in flexion, extension, supination, pronation, radial, and ulnar deviation in patients with moderate or severe carpal tunnel syndrome (CTS). PATIENTS AND METHODS: Thirteen patients (23 hands) (2 males, 11 females; mean age 45 years; range 29 to 60 years) with moderate or severe CTS were compared to six healthy control subjects (12 hands) (2 males, 4 females; mean age 41 years; range 27 to 63 years) in this study, which was conducted between January 2016 and April 2016...
April 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/28288611/benefits-of-resistance-exercise-in-lean-women-with-fibromyalgia-involvement-of-igf-1-and-leptin
#19
Jan L Bjersing, Anette Larsson, Annie Palstam, Malin Ernberg, Indre Bileviciute-Ljungar, Monika Löfgren, Björn Gerdle, Eva Kosek, Kaisa Mannerkorpi
BACKGROUND: Chronic pain and fatigue improves by exercise in fibromyalgia (FM) but underlying mechanisms are not known. Obesity is increased among FM patients and associates with higher levels of pain. Symptom improvement after aerobic exercise is affected by body mass index (BMI) in FM. Metabolic factors such as insulin-like growth factor 1 (IGF-1) and leptin may be involved. In this study, the aim was to evaluate the role of metabolic factors in lean, overweight and obese women during resistance exercise, in relation to symptom severity and muscle strength in women with FM...
March 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28287915/the-effects-of-deterioration-and-technological-levels-on-pollutant-emission-factors-for-gasoline-light-duty-trucks
#20
Qingyu Zhang, Juwang Fan, Weidong Yang, Bixin Chen, Lijuan Zhang, Jiaoyu Liu, Jingling Wang, Chunyao Zhou, Xuan Chen
Vehicle deterioration and technological change influence emission factors (EFs). In this study, the impacts of vehicle deterioration and emission standards on EFs of regulated pollutants (CO, HC, and NOx) for gasoline light-duty trucks (LDTs) were investigated according to the Inspection and Maintenance (I/M) data using a chassis dynamometer method. Pollutant EFs for LDTs markedly varied with accumulated mileages and emission standards, and the trends of EFs are associated with accumulated mileages. In addition, the study also found that in most cases the median EFs of CO, HC and NOx are higher than those of basic EFs in the IVE model; therefore, the present study provides correction factors for the IVE model relative to the corresponding emission standards and mileages...
March 13, 2017: Journal of the Air & Waste Management Association
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