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https://www.readbyqxmd.com/read/28109941/maximal-inspiratory-mouth-pressure-in-japanese-elite-female-athletes
#1
Toshiyuki Ohya, Masahiro Hagiwara, Kentaro Chino, Yasuhiro Suzuki
Maximal inspiratory mouth pressure (MIP) is a common measurement of inspiratory muscle strength, which is often used in a variety of exercises to evaluate the effects of inspiratory muscle training. The characteristics of MIP in elite female athletes remain unclear. This study aimed to determine the characteristics of MIP at rest in a variety of sport-specific elite female athletes. We also aimed to clarify if there is a sex difference of MIP in elite athletes. We studied 169 Japanese elite female athletes and 301 Japanese elite male athletes...
January 18, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28109535/resistance-training-minimizes-the-biomechanical-effects-of-aging-in-three-different-rat-tendons
#2
Rita de Cássia Marqueti, Jeeser Alves Almeida, Wilson Romero Nakagaki, Vinicius Guzzoni, Fábio Boghi, Adriana Renner, Paulo Eugênio Silva, João Luiz Quagliotti Durigan, Heloisa Sobreiro Selistre-de-Araújo
Aging process is characterized by a decline in the organism functionality, especially in the decrease of muscle function, which also affects tendons. On the other hand, the resistance training (RT) has been used as an important tool to increase muscle and tendineous function during aging. Thus, this study aim has been to verify the effects of RT on the biomechanical properties of three different aged rat tendons. For this purpose, 20 wistar rats have been divided into four groups (5 rats per group): young sedentary (YS), trained (YT), old sedentary (OS) and old trained (OT)...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28108329/exercise-increases-mitochondrial-complex-i-activity-and-drp1-expression-in-the-brains-of-aged-mice
#3
Aaron M Gusdon, Jason Callio, Giovanna DiStefano, Robert M O'Doherty, Bret H Goodpaster, Paul M Coen, Charleen T Chu
Exercise is known to have numerous beneficial effects. Recent studies indicate that exercise improves mitochondrial energetics not only in skeletal muscle but also in other tissues. While exercise elicits positive effects on memory, neurogenesis, and synaptic plasticity, the effects of exercise on brain mitochondrial energetics remain relatively unknown. Herein, we studied the effects of exercise training in old and young mice on brain mitochondrial energetics, in comparison to known effects on peripheral tissues that utilize fatty acid oxidation...
January 17, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28105866/feasibility-and-acceptability-of-couple-counselling-and-pelvic-floor-muscle-training-after-operation-for-prostate-cancer
#4
Randi V Karlsen, Pernille E Bidstrup, Helle Hvarness, Per Bagi, Elisabeth Friis Lippert, Rikke Permild, Annamaria Giraldi, Agnethe Lawaetz, Eva Krause, Ulla Due, Christoffer Johansen
BACKGROUND: Radical prostatectomy is often followed by long-lasting erectile dysfunction and urinary incontinence, with adverse effects on the quality of life and intimate relationship of patients and partners. We developed the ProCan intervention to ameliorate sexual and urological dysfunction after radical prostatectomy and examined its feasibility, acceptability and changes in sexual function. MATERIAL AND METHODS: Between May 2014 and October 2014, seven couples attending the Department of Urology, Rigshospitalet, were included 3-4 weeks after radical prostatectomy in the ProCan intervention, which consists of up to six couple counselling sessions, group instruction in pelvic floor muscle training (PFMT), up to three individual PFMT sessions and a DVD home training program...
January 20, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28104751/exercise-training-decreases-nadph-oxidase-activity-and-restores-skeletal-muscle-mass-in-heart-failure-rats
#5
Telma F Cunha, Luiz Roberto Grassman Bechara, Aline V N Bacurau, Paulo R Jannig, Vanessa Azevedo Voltarelli, Paulo M Dourado, Andrea R Vasconcelos, Cristóforo Scavone, Julio C B Ferreira, Patricia C Brum
We have recently demonstrated that NADPH oxidase hyperactivity, NF-κB activation and increased p38 phosphorylation lead to atrophy of glycolytic muscle in heart failure (HF). Aerobic exercise training (AET) is an efficient strategy to counteract skeletal muscle atrophy in this syndrome. Therefore, we tested whether AET would regulate muscle redox balance and protein degradation by decreasing NADPH oxidase hyperactivity, reestablishing NF-κB signaling, p38 phosphorylation and proteasome activity in plantaris muscle of myocardial infarcted-induced HF (MI) rats...
January 19, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28104750/gene-networks-in-skeletal-muscle-following-endurance-exercise-are-co-expressed-in-blood-neutrophils-and-linked-with-blood-inflammation-markers
#6
James A Broadbent, Dayle Sampson, Surendran Sabapathy, Luke J Haseler, Karl-Heinz Wagner, Andrew Cameron Bulmer, Jonathan M Peake, Oliver Neubauer
It remains incompletely understood whether there is an association between the transcriptome profiles of skeletal muscle and blood leukocytes in response to exercise or other physiological stressors. We have previously analyzed the changes in the muscle and blood neutrophil transcriptome in eight trained men before and 3 h, 48 h and 96 h after 2 h cycling and running. Because we collected muscle and blood in the same individuals and under the same conditions, we were able to directly compare gene expression between the muscle and blood neutrophils...
January 19, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28104260/robot-guided-ankle-sensorimotor-rehabilitation-of-patients-with-multiple-sclerosis
#7
Yunju Lee, Kai Chen, Yupeng Ren, Jongsang Son, Bruce A Cohen, James A Sliwa, Li-Qun Zhang
BACKGROUND: People with multiple sclerosis (MS) often develop symptoms including muscle weakness, spasticity, imbalance, and sensory loss in the lower limbs, especially at the ankle, which result in impaired balance and locomotion and increased risk of falls. Rehabilitation strategies that improve ankle function may improve mobility and safety of ambulation in patients with MS. This pilot study investigated effectiveness of a robot-guided ankle passive-active movement training in reducing motor and sensory impairments and improving balance and gait functions...
January 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28103813/fat-mass-and-obesity-associated-fto-gene-influences-skeletal-muscle-phenotypes-in-non-resistance-trained-males-and-elite-rugby-playing-position
#8
S M Heffernan, G K Stebbings, L P Kilduff, R M Erskine, S H Day, C I Morse, J S McPhee, C J Cook, B Vance, W J Ribbans, S M Raleigh, C Roberts, M A Bennett, G Wang, M Collins, Y P Pitsiladis, A G Williams
BACKGROUND: FTO gene variants have been associated with obesity phenotypes in sedentary and obese populations, but rarely with skeletal muscle and elite athlete phenotypes. METHODS: In 1089 participants, comprising 530 elite rugby athletes and 559 non-athletes, DNA was collected and genotyped for the FTO rs9939609 variant using real-time PCR. In a subgroup of non-resistance trained individuals (NT; n = 120), we also assessed structural and functional skeletal muscle phenotypes using dual energy x-ray absorptiometry, ultrasound and isokinetic dynamometry...
January 19, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28101567/influence-of-arm-crank-ergometry-on-development-of-lymphedema-in-breast-cancer-patients-after-axillary-dissection-a-randomized-controlled-trail
#9
Thorsten Schmidt, Jette Berner, Walter Jonat, Burkhard Weisser, Christioph Röcken, Marion van Mackelenbergh, Christoph Mundhenke
OBJECTIVE: To investigate the safety and efficacy of arm crank ergometry in breast cancer patients after axillary lymph node dissection, with regard to changes in bioelectrical impedance analysis, arm circumference, muscular strength, quality of life and fatigue. DESIGN: Randomized controlled clinical intervention trial. SUBJECTS: Forty-nine patients with breast cancer after axillary lymph node dissection. METHODS: Arm crank ergometer training twice-weekly was compared with usual care over 12 weeks...
January 19, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28100652/correlation-between-discharge-timings-of-pairs-of-motor-units-reveals-the-presence-but-not-the-proportion-of-common-synaptic-input-to-motor-neurons
#10
Javier Rodriguez-Falces, Francesco Negro, Dario Farina
We investigated whether correlation measures derived from pairs of motor unit (MU) spike trains are reliable indicators of the degree of common synaptic input to motor neurons. Several 50-s isometric contractions of the biceps brachii muscle were performed at different target forces ranging from 10 to 30% of the maximal voluntary contraction (MVC) relying on force feedback. 48 pairs of MUs were examined at various force levels. Motor unit synchrony was assessed by cross-correlation analysis using three indices: the output correlation as the peak of the cross-histogram (ρ), the number of synchronous spikes per second (CIS), and per trigger (E)...
January 18, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28100544/oscillatory-whole-body-vibration-improves-exercise-capacity-and-physical-performance-in-pulmonary-arterial-hypertension-a-randomised-clinical-study
#11
Felix Gerhardt, Daniel Dumitrescu, Carina Gärtner, Ralf Beccard, Thomas Viethen, Tilmann Kramer, Stephan Baldus, Martin Hellmich, Eckhard Schönau, Stephan Rosenkranz
OBJECTIVE: In patients with pulmonary arterial hypertension (PAH), supportive therapies may be beneficial in addition to targeted medical treatment. Here, we evaluated the effectiveness and safety of oscillatory whole-body vibration (WBV) in patients on stable PAH therapy. METHODS: Twenty-two patients with PAH (mean PAP≥25 mm Hg and pulmonary arterial wedge pressure (PAWP)≤15 mm Hg) who were in world health organization (WHO)-Functional Class II or III and on stable PAH therapy for≥3 months, were randomised to receive WBV (16 sessions of 1-hour duration within 4 weeks) or to a control group, that subsequently received WBV...
January 18, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28100190/translation-of-a-tailored-nutrition-and-resistance-exercise-intervention-for-elderly-people-to-a-real-life-setting-adaptation-process-and-pilot-study
#12
Ellen Ji van Dongen, Joanne N Leerlooijer, Jan M Steijns, Michael Tieland, Lisette Cpgm de Groot, Annemien Haveman-Nies
BACKGROUND: Combining increased dietary protein intake and resistance exercise training for elderly people is a promising strategy to prevent or counteract the loss of muscle mass and decrease the risk of disabilities. Using findings from controlled interventions in a real-life setting requires adaptations to the intervention and working procedures of healthcare professionals (HCPs). The aim of this study is to adapt an efficacious intervention for elderly people to a real-life setting (phase one) and test the feasibility and potential impact of this prototype intervention in practice in a pilot study (phase two)...
January 18, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28100124/compelling-overuse-injury-incidence-in-youth-multisport-athletes
#13
Abdallah Rejeb, Amanda Johnson, Roel Vaeyens, Cosmin Horobeanu, Abdulaziz Farooq, Erik Witvrouw
The present investigation was carried out to examine the incidence and pattern of injuries in adolescent multisport athletes from youth sports academy. Injury data were prospectively collected from 166 athletes during the seasons from 2009 to 2014. A total of 643 injuries were identified, 559 (87.0%) were time-loss injuries. The overall injury incidence was 5.5 (95% confidence interval CI: 5.1-6.0), the incidence of time-loss injuries was 4.8 (95% CI: 4.4-5.2), the incidence of growth conditions was 1.2 (95% CI: 1...
January 18, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28099194/chronic-resistance-training-does-not-ameliorate-unloading-induced-decrements-in-neuromuscular-function
#14
Michael R Deschenes, Raymond W McCoy, Katherine A Mangis
OBJECTIVE: The aim of this study was to assess the efficacy of long-term resistance training in preventing the detrimental effects of muscle unloading on neuromuscular function. DESIGN: Eleven untrained men and 11 men with extensive backgrounds in resistance training were tested for several parameters of neuromuscular function at various isokinetic contractile velocities before and after 7 days of muscle unloading. Measurements included muscle mass, strength, power, total work, electromyography, and neuromuscular transmission efficiency using superimposed electrical stimulation of maximally contracting muscles...
January 17, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28096432/effects-of-activity-genetic-selection-and-their-interaction-on-muscle-metabolic-capacities-and-organ-masses-in-mice
#15
Scott A Kelly, Fernando R Gomes, Erik M Kolb, Jessica L Malisch, Theodore Garland
Chronic voluntary exercise elevates total daily energy expenditure (DEE) and food consumption, potentially resulting in organ compensation supporting nutrient extraction/utilization. Additionally, species with naturally higher DEE often have larger processing organs, which may represent genetic differences and/or phenotypic plasticity. We tested for possible adaptive changes in organ masses of 4 replicate lines of house mice selected (37 generations) for high running (HR lines) compared with 4 non-selected control (C) lines...
January 17, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28096255/sheppheartcabg-trial-comprehensive-early-rehabilitation-after-coronary-artery-bypass-grafting-a-protocol-for-a-randomised-clinical-trial
#16
Ida Elisabeth Højskov, Philip Moons, Niels Viggo Hansen, Søren La Cour, Peter Skov Olsen, Christian Gluud, Per Winkel, Jane Lindschou, Lau Caspar Thygesen, Ingrid Egerod, Selina Kikkenborg Berg
INTRODUCTION: Patients undergoing coronary artery bypass graft surgery often experience a range of symptoms. Studies indicate that non-pharmacological interventions such as exercise training and psychoeducation have a positive physiological and psychological effect in early outpatient rehabilitation. The SheppHeartCABG trial will investigate the effect of early comprehensive rehabilitation in early phase rehabilitation versus usual care. The aim of this paper is to present the protocol for the SheppHeartCABG trial...
January 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28095952/neck-and-shoulder-muscle-activation-among-experienced-and-inexperienced-pilots-in-gz-exposure
#17
Tuomas Honkanen, Juha Oksa, Matti J Mäntysaari, Heikki Kyröläinen, Janne Avela
BACKGROUND: The aim of the present study was to compare differences in electromyography (EMG) activation of the neck and shoulder muscles between groups of inexperienced and experienced pilots during controlled +Gz exposure in a centrifuge. METHODS: The subjects were volunteer cadets (inexperienced group) and lieutenants (experienced group) undergoing their first centrifuge training. The first group did not have any high performance aircraft (HPA) experience, while the latter one had a 1-yr experience of intense flying of HPA...
February 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28093920/inspiratory-muscle-training-is-effective-to-reduce-postoperative-pulmonary-complications-and-length-of-hospital-stay-a-systematic-review-and-meta-analysis
#18
Filipa Kendall, José Oliveira, Bárbara Peleteiro, Paulo Pinho, Pedro Teixeira Bastos
PURPOSE: This study systematically review and meta-analyse the effectiveness of inspiratory muscle training (IMT) to reduce postoperative pulmonary complications (PPC) and length of hospital stay (LOS), both in the preoperative and/or postoperative periods of cardiac, pulmonary, and abdominal surgical patients. Sensitive analysis was performed to examine which patients benefit more from IMT according to methodological features (quality of studies and sample size), patient's characteristics (pulmonary risk stratification, age, and body mass index), type of surgery, period of training, and training protocols (training doses and level of supervision)...
January 17, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28093857/can-blood-flow-restriction-augment-muscle-activation-during-high-load-training
#19
Scott J Dankel, Samuel L Buckner, Matthew B Jessee, Kevin T Mattocks, J Grant Mouser, Brittany R Counts, Gilberto C Laurentino, Jeremy P Loenneke
INTRODUCTION: Blood flow restriction has been shown to augment muscle activation and increase muscle size when combined with low-load training; however, much less is known on whether blood flow restriction can augment muscle activation during high-load exercise. PURPOSE: To determine whether applying blood flow restriction can augment muscle activation with traditional high-load resistance exercise. METHOD: Ten individuals completed two sets of elbow flexion exercise to volitional fatigue...
January 16, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28093194/effects-of-neuromuscular-electrical-stimulation-during-hemodialysis-on-peripheral-muscle-strength-and-exercise-capacity-a-randomized-clinical-trial
#20
Ana Karla Vieira Brüggemann, Carolina Luana Mello, Tarcila Dal Pont, Deborah de Camargo Hizume Kunzler, Daniel Fernandes Martins, Franciane Bobinski, Wellington Pereira Yamaguti, Elaine Paulin
OBJECTIVE: To evaluate the effects of neuromuscular electrical stimulation of high and low frequency and intensity, performed during hemodialysis (HD), on physical function and inflammation markers in patients with chronic kidney disease (CKD). DESIGN: Randomized clinical trial SETTING: Hemodialysis clinic. PARTICIPANTS: 51 CKD patients were randomized into blocks of four by means of opaque envelopes. They were divided into a group of high frequency and intensity neuromuscular electrical stimulation (HG) and a group of low frequency and intensity neuromuscular electrical stimulation (LG)...
January 13, 2017: Archives of Physical Medicine and Rehabilitation
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