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https://www.readbyqxmd.com/read/28096042/acute-effect-of-intermittent-and-continuous-aerobic-exercise-on-release-of-cardiac-troponin-t-in-sedentary-men
#1
Rouhollah Ranjbar, Mohammad Amin Ahmadi, Abdossaleh Zar, Peter Krustrup
BACKGROUND: Studies have shown that acute exercise can increase serum concentrations of cardiac biomarkers, including cardiac troponin T (cTnT). We investigated the acute effects of intermittent (IE) and continuous (CE) exercise at the same cardiac workload on myocardial necrosis biomarkers in sedentary men. METHODS: Eleven sedentary healthy men aged 22.3±1.9years completed the study. The subjects were divided into two groups and performed, in random order, IE (intensity alternating between 50% (2min) and 80% (1min) HRreserve) or CE (60% HRreserve)...
January 9, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28095854/the-effects-of-detraining-and-training-on-adipose-tissue-lipid-droplet-in-obese-mice-after-chronic-high-fat-diet
#2
Ju Yong Bae, Jinhee Woo, Hee Tae Roh, Yul Hyo Lee, Kangeun Ko, Sunghwun Kang, Ki Ok Shin
BACKGROUND: It is well known that exercise promotes lipolysis by stimulating the lipid droplet (LD) signaling pathway. However, few studies have been conducted to examine the effect of detraining with high fat diet (HFD) and training effects after long-term HFD. Here, we investigated the effect of detraining and training on adipose tissue LD pathway in diet-induced obese mice after continuous HFD. METHODS: Seventy male C57BL/6 mice were randomly assigned into a Normal diet + Sedentary group (ND, n = 10) or a High-fat diet + Sedentary group (HF, n = 50); in the HF group, obesity was induced by a 45% fat chow for six weeks...
January 17, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28094013/pulmonary-outcome-of-esophageal-atresia-patients-and-its-potential-causes-in-early-childhood
#3
René Dittrich, Philippe Stock, Karin Rothe, Petra Degenhardt
INTRODUCTION: The aim of this study was to illustrate the pulmonary long term outcome of patients with repaired esophageal atresia and to further examine causes and correlations that might have led to this outcome. METHODS: Twenty-seven of 62 possible patients (43%) aged 5-20years, with repaired esophageal atresia were recruited. Body plethysmography and spirometry were performed to evaluate lung function, and the Bruce protocol treadmill exercise test to assess physical fitness...
January 3, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28079706/ibuprofen-before-exercise-does-not-prevent-cortical-bone-adaptations-to-training
#4
Vanessa D Sherk, R Dana Carpenter, Erin D Giles, Janine A Higgins, Robera M Oljira, Ginger C Johnson, Samuel Mills, Paul S MacLean
: Using a nonsteroidal anti-inflammatory drug (NSAID) before a single bout of mechanical loading can reduce bone formation response. It is unknown whether this translates to an attenuation of bone strength and structural adaptations to exercise training. PURPOSE: To determine whether NSAID use before exercise prevents increases in bone structure and strength in response to weight-bearing exercise. METHODS: Adult female Wistar rats (n=43) were randomized to Ibuprofen (IBU) or Vehicle (VEH) and Exercise (EX) or Sedentary (SED) groups in a 2x2 (drug, activity) ANCOVA design with body weight as the covariate, and data are reported as mean±SE...
January 10, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28077104/effects-of-treadmill-exercise-versus-flutter%C3%A2-on-respiratory-flow-and-sputum-properties-in-adults-with-cystic-fibrosis-a-randomised-controlled-cross-over-trial
#5
Tiffany J Dwyer, Rahizan Zainuldin, Evangelia Daviskas, Peter T P Bye, Jennifer A Alison
BACKGROUND: Treadmill exercise and airway clearance with the Flutter® device have previously been shown to improve mucus clearance mechanisms in people with cystic fibrosis (CF) but have not been compared. It is therefore not known if treadmill exercise is an adequate form of airway clearance that could replace established airway clearance techniques, such as the Flutter®. The aim of this study was to evaluate respiratory flow, sputum properties and subjective responses of treadmill exercise and Flutter® therapy, compared to resting breathing (control)...
January 11, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28076413/dynamic-characteristics-of-ventilatory-and-gas-exchange-during-sinusoidal-walking-in-humans
#6
Yoshiyuki Fukuoka, Masaaki Iihoshi, Juhelee Tuba Nazunin, Daijiro Abe, Yoshiyuki Fukuba
Our present study investigated whether the ventilatory and gas exchange responses show different dynamics in response to sinusoidal change in cycle work rate or walking speed even if the metabolic demand was equivalent in both types of exercise. Locomotive parameters (stride length and step frequency), breath-by-breath ventilation (V̇E) and gas exchange (CO2 output (V̇CO2) and O2 uptake (V̇O2)) responses were measured in 10 healthy young participants. The speed of the treadmill was sinusoidally changed between 3 km·h-1 and 6 km·h-1 with various periods (from 10 to 1 min)...
2017: PloS One
https://www.readbyqxmd.com/read/28075704/changes-in-cardiorespiratory-responses-and-kinematics-with-hippotherapy-in-youth-with-and-without-cerebral-palsy
#7
Brandon Rhett Rigby, Adam Robert Gloeckner, Suzanne Sessums, Beth Anne Lanning, Peter Walter Grandjean
PURPOSE: The purpose of this study was to characterize pelvic displacement and cardiorespiratory responses to simulated horseback riding and walking in youth with cerebral palsy and to compare responses to youth without cerebral palsy before and after 8 weeks of hippotherapy. METHOD: Eight youth with cerebral palsy (Mage = 10 ± 4 years; Mheight = 137 ± 24 cm; Mweight = 32 ± 16 kg) and 8 youth without cerebral palsy (Mage = 11 ± 2 years; Mheight = 149 ± 14 cm; Mweight = 48 ± 15 kg) underwent a hippotherapy intervention...
January 11, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/28072632/asc-methylation-and-interleukin-1%C3%AE-are-associated-with-aerobic-capacity-in-heart-failure
#8
Brittany Butts, Javed Butler, Sandra B Dunbar, Elizabeth Corwin, Rebecca A Gary
BACKGROUND: Aerobic capacity, as measured by peak oxygen uptake (V[Combining Dot Above]O2), is one of the most powerful predictors of prognosis in heart failure (HF). Inflammation is a key factor contributing to alterations in aerobic capacity, and interleukin (IL)-1 cytokines are implicated in this process. The adaptor protein ASC is necessary for inflammasome activation of IL-1β and IL-18. ASC expression is controlled through epigenetic modification; lower ASC methylation is associated with worse outcomes in HF...
January 9, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28070911/effects-of-exercise-training-on-brain-derived-neurotrophic-factor-in-skeletal-muscle-and-heart-of-rats-post-myocardial-infarction
#9
Heow Won Lee, Monir Ahmad, Hong-Wei Wang, Frans H H Leenen
Exercise training post myocardial infarction (MI) attenuates progressive left ventricle (LV) remodeling and dysfunction, but the peripheral stimuli induced by exercise which trigger these beneficial effects are still unclear. We investigated as possible mediators fibronectin type III domain-containing protein 5 (FNDC5) and brain-derived neurotrophic factor (BDNF) in the skeletal muscle and heart. Male Wistar rats underwent either sham surgery or ligation of left descending coronary artery, and surviving MI rats were allocated to either sedentary (Sed-MI) or exercise group (ExT-MI)...
January 9, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28069460/epilepsy-and-exercise-an-experimental-study-in-female-rats
#10
Diego Vannucci Campos, Glauber Menezes Lopim, Daiana Aparecida da Silva, Alexandre Aparecido de Almeida, Debora Amado, Ricardo Mario Arida
OBJECTIVE: Epilepsy is the most common neurological chronic condition worldwide, affecting about 2% of world population. Temporal lobe epilepsy (TLE) reaches 40% of all cases of this condition, and it is highly refractory to pharmacological treatment. Physical activity has been suggested as complementary therapy for epilepsy. However, there is no consistent information whether all these effects are plenty applicable to females, since clinical and experimental studies concerning physical exercise and epilepsy are largely performed in males...
January 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28067100/effects-of-a-single-bout-of-strenuous-exercise-on-platelet-activation-in-female-apoe-ldlr-mice
#11
K Przyborowski, H Kassassir, M Wojewoda, K Kmiecik, B Sitek, K Siewiera, A Zakrzewska, A M Rudolf, R Kostogrys, C Watala, J A Zoladz, S Chlopicki
Strenuous physical exercise leads to platelet activation that is normally counterbalanced by the production of endothelium-derived anti-platelet mediators, including prostacyclin (PGI2) and nitric oxide (NO). However, in the case of endothelial dysfunction, e.g. in atherosclerosis, there exists an increased risk for intravascular thrombosis during exercise that might be due to an impairment in endothelial anti-platelet mechanisms. In the present work, we evaluated platelet activation at rest and following a single bout of strenuous treadmill exercise in female ApoE/LDLR(-)(/-) mice with early (3-month-old) and advanced (7-month-old) atherosclerosis compared to female age-matched WT mice...
January 9, 2017: Platelets
https://www.readbyqxmd.com/read/28066520/gait-training-interventions-for-lower-extremity-amputees-a-systematic-literature-review
#12
M Jason Highsmith, Casey R Andrews, Claire Millman, Ashley Fuller, Jason T Kahle, Tyler D Klenow, Katherine L Lewis, Rachel C Bradley, John J Orriola
Lower extremity (LE) amputation patients who use prostheses have gait asymmetries and altered limb loading and movement strategies when ambulating. Subsequent secondary conditions are believed to be associated with gait deviations and lead to long-term complications that impact function and quality of life as a result. The purpose of this study was to systematically review the literature to determine the strength of evidence supporting gait training interventions and to formulate evidence statements to guide practice and research related to therapeutic gait training for lower extremity amputees...
September 2016: Technology and Innovation
https://www.readbyqxmd.com/read/28064384/gut-microbiota-composition-associated-with-alterations-in-cardiorespiratory-fitness-and-psychosocial-outcomes-among-breast-cancer-survivors
#13
Jesseca A Paulsen, Travis S Ptacek, Stephen J Carter, Nianjun Liu, Ranjit Kumar, LaKeshia Hyndman, Elliot J Lefkowitz, Casey D Morrow, Laura Q Rogers
PURPOSE: In this proof-of-concept pilot study, our purpose was to determine correlations between gut microbiota composition and alterations in cardiorespiratory fitness and psychosocial outcomes among post-primary treatment breast cancer survivors (BCS). METHODS: Composition of the gut microbiota in BCS (n = 12) was assessed at baseline (M0) and at the end of 3 months (M3) using Illumina MiSeq DNA Sequencing of the 16S rRNA gene. Gut microbiota composition was analyzed using the QIIME bioinformatics software and represented through diversity metrics and taxa analyses...
January 7, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28064225/influence-of-mechanical-force-on-bone-matrix-proteins-in-ovariectomised-mice-and-osteoblast-like-mc3t3-e1-cells
#14
Meng Zhang, Shintaro Ishikawa, Tomoko Inagawa, Hideshi Ikemoto, Shiyu Guo, Masataka Sunagawa, Tadashi Hisamitsu
AIM: To investigate the effect of mechanical stress on periostin and semaphorin-3A expression in a murine model of postmenopausal osteoporosis and in osteoblast-like MC3T3-E1 cells. MATERIALS AND METHODS: Female mice were divided into three groups and treated with a sham operation, ovariectomy (OVX) or OVX plus treadmill training (OVX+Run). After 10 weeks, tibias were used for histological analysis. MC3T3-E1 cells were burdened by mechanical stress using a centrifuge or were treated with periostin, and the production of biologically-active semaphorin-3A was examined in vitro...
2, 2017: In Vivo
https://www.readbyqxmd.com/read/28063503/does-oral-glutamine-improve-insulin-sensitivity-in-adolescents-with-type-1-diabetes
#15
Lournaris Torres-Santiago, Nelly Mauras, Jobayer Hossain, Arthur L Weltman, Dominique Darmaun
OBJECTIVE: The decline in insulin sensitivity (SI) associated with puberty increases the difficulty of achieving glycemic control in adolescents with type 1 diabetes (T1D). The aim of this study was to determine whether glutamine supplementation affects blood glucose by enhancing SI in adolescents with T1D. METHODS: Thirteen adolescents with T1D (HbA1C 8.2 ± 0.1%) were admitted to perform afternoon exercise (four 15-min treadmill/5-min rest cycles of exercise) on two occasions within a 4-wk period...
February 2017: Nutrition
https://www.readbyqxmd.com/read/28062370/treadmill-exercise-alleviates-motor-deficits-and-improves-mitochondrial-import-machinery-in-an-mptp-induced-mouse-model-of-parkinson-s-disease
#16
Jung-Hoon Koo, Joon-Yong Cho, Ung-Bae Lee
Alpha-synuclein (α-Syn) accumulation is significantly correlated with motor deficits and mitochondrial dysfunction in Parkinson's disease (PD), but the molecular mechanism underlying its pathogenesis is unclear. In this study, we investigated the effects of treadmill exercise on motor deficits and mitochondrial dysfunction in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse model of PD. Treadmill exercise inhibited dopaminergic neuron loss by promoting the expression of tyrosine hydroxylase (TH) and dopamine transporter (DAT) and seemed to improve cell survival by reducing α-Syn expression...
January 3, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28060977/-validation-of-the-borg-scale-in-participants-with-type-2-diabetes-mellitus
#17
Walter Rosales, Cristian Cofré, Cicchitti Alejandra, Celina Bertona, Alejandro Vizcaya, Joaquín González, Jorge Bajuk, Martín Rodríguez
BACKGROUND: Borg Rating of Perceived Exertion Scale (RPE) is a psychophysiological measurements that translates physical stimuli to a psychological construct, which is perceived exertion. Its use is simple and it represents the effort perception. Each number of the scale is associated with a heart rate or percentage of maximal oxygen consumption (VO2max), which estimates the intensity of exercise. AIM: To validate RPE scale in patients with type 2 diabetes mellitus (DM2)...
September 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28057817/contractile-efficiency-of-dystrophic-mdx-mouse-muscle-in-vivo-and-ex-vivo-assessment-of-adaptation-to-exercise-of-functional-end-points
#18
Roberta Francesca Capogrosso, Paola Mantuano, Anna Cozzoli, Francesca Sanarica, Ada Maria Massari, Elena Conte, Adriano Fonzino, Arcangela Giustino, Jean-Francois Rolland, Angelo Quaranta, Michela De Bellis, Giulia Maria Camerino, Robert W Grange, Annamaria De Luca
Progressive weakness is a typical feature of Duchenne muscular dystrophy (DMD) patients and is exacerbated in the benign mdx mouse model by in vivo treadmill exercise. We hypothesized a different threshold for functional adaptation of mdx muscles in response to the duration of the exercise protocol. In vivo weakness was confirmed by grip strength after 4, 8 and 12 weeks of exercise in mdx mice. Torque measurements revealed that exercise-related weakness in mdx mice correlated with the duration of the protocol, while wild-type (wt) mice were stronger...
January 5, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28054256/salivary-alpha-amylase-not-chromogranin-a-reflects-sympathetic-activity-exercise-responses-in-elite-male-wheelchair-athletes-with-or-without-cervical-spinal-cord-injury
#19
Christof A Leicht, Thomas A W Paulson, Victoria L Goosey-Tolfrey, Nicolette C Bishop
BACKGROUND: Salivary alpha amylase (sAA) and chromogranin A (sCgA) have both been suggested as non-invasive markers for sympathetic nervous system (SNS) activity. A complete cervical spinal cord injury leading to tetraplegia is accompanied with sympathetic dysfunction; the aim of this study was to establish the exercise response of these markers in this in vivo model. METHODS: Twenty-six elite male wheelchair athletes (C6-C7 tetraplegia: N = 8, T6-L1 paraplegia: N = 10 and non-spinal cord injured controls: N = 8) performed treadmill exercise to exhaustion...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28052868/negative-rebound-in-hippocampal-neurogenesis-following-exercise-cessation
#20
Takeshi Nishijima, Yoshika Kamidozono, Atsushi Ishiizumi, Seiichiro Amemiya, Ichiro Kita
Physical exercise can improve brain function; however, the effects of exercise cessation are largely unknown. This study examined the time-course profile of hippocampal neurogenesis following exercise cessation. Male C57BL/6 mice were randomly assigned to either a control (Con) or an exercise cessation (ExC) group. ExC mice were reared in a cage with a running wheel for 8 weeks and subsequently placed in a standard cage to cease the exercise. Exercise significantly increased the density of doublecortin (DCX)-positive immature neurons in the dentate gyrus (at week 0)...
January 4, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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