keyword
MENU ▼
Read by QxMD icon Read
search

physiology of exercise

keyword
https://www.readbyqxmd.com/read/28733588/neurogenesis-from-sox2-expressing-cells-in-the-adult-cerebellar-cortex
#1
Julia Ahlfeld, Severin Filser, Felix Schmidt, Annika K Wefers, Daniel J Merk, Rainer Glaß, Jochen Herms, Ulrich Schüller
We identified a rare undifferentiated cell population that is intermingled with the Bergmann glia of the adult murine cerebellar cortex, expresses the stem cell markers Sox2 and Nestin, and lacks markers of glial or neuronal differentiation. Interestingly, such Sox2(+) S100(-) cells of the adult cerebellum expanded after adequate physiological stimuli in mice (exercise), and Sox2(+) precursors acquired positivity for the neuronal marker NeuN over time and integrated into cellular networks. In human patients, SOX2(+) S100(-) cells similarly increased in number after relevant pathological insults (infarcts), suggesting a similar expansion of cells that lack terminal glial differentiation...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733378/is-it-time-to-change-the-type-2-diabetes-treatment-paradigm-no-metformin-should-remain-the-foundation-therapy-for-type-2-diabetes
#2
Silvio E Inzucchi
Most treatment guidelines, including those from the American Diabetes Association/European Association for the Study of Diabetes and the International Diabetes Federation, suggest metformin be used as the first-line therapy after diet and exercise. This recommendation is based on the considerable body of evidence that has accumulated over the last 30 years, but it is also supported on clinical grounds based on metformin's affordability and tolerability. As such, metformin is the most commonly used oral antihyperglycemic agent in the U...
August 2017: Diabetes Care
https://www.readbyqxmd.com/read/28733377/is-it-time-to-change-the-type-2-diabetes-treatment-paradigm-yes-glp-1-ras-should-replace-metformin-in-the-type-2-diabetes-algorithm
#3
Muhammad Abdul-Ghani, Ralph A DeFronzo
Most treatment guidelines, including those from the American Diabetes Association/European Association for the Study of Diabetes and the International Diabetes Federation, suggest metformin be used as the first-line therapy after diet and exercise. This recommendation is based on the considerable body of evidence that has accumulated over the last 30 years, but it is also supported on clinical grounds based on metformin's affordability and tolerability. As such, metformin is the most commonly used oral antihyperglycemic agent in the U...
August 2017: Diabetes Care
https://www.readbyqxmd.com/read/28731978/differences-in-spatiotemporal-parameters-between-trained-runners-and-untrained-participants
#4
Josué Gómez-Molina, Ana Ogueta-Alday, Christopher Stickley, Jesús Cámara, Jon Cabrejas-Ugartondo, Juan García-López
Gómez-Molina, J, Ogueta-Alday, A, Stickley, C, Tobalina, JC, Cabrejas-Ugartondo, J, and García-López, J. Differences in spatiotemporal parameters between trained runners and untrained participants. J Strength Cond Res 31(8): 2169-2175, 2017-The aim of this study was to compare the spatiotemporal parameters of trained runners and untrained participants with the same foot strike pattern (rearfoot) during running at controlled speeds. Twenty-one participants were classified in 2 groups according to their training experience: Trained (n = 10, amateur runners with long distance training experience) and Untrained (n = 11, healthy untrained participants)...
August 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28727673/exercise-training-improves-ventilatory-efficiency-in-patients-with-a-small-abdominal-aortic-aneurysm-a-randomized-controlled-study
#5
Ricardo M Lima, Baruch Vainshelboim, Rucha Ganatra, Ronald Dalman, Khin Chan, Jonathan Myers
PURPOSE: To investigate the effects of exercise training on ventilatory efficiency and physiological responses to submaximal exercise in subjects with small abdominal aortic aneurysm (AAA). METHODS: Sixty-five male patients (72.3 ± 7.0 years) were randomized to exercise training (n = 33) or usual care group (n = 32). Exercise subjects participated in a training groups for 3 mo. Cardiopulmonary exercise testing was performed before and after the study period and peak VO2, the ventilatory threshold (VT), the oxygen uptake efficiency slope (OUES), and the VE2/VCO2 slope were identified...
July 19, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28719865/antioxidant-effect-of-exercise-exploring-the-role-of-the-mitochondrial-complex-i-superassembly
#6
J R Huertas, S Al Fazazi, A Hidalgo-Gutierrez, L C López, R A Casuso
Mitochondrial respiratory complexes become assembled into supercomplexes (SC) under physiological conditions. One of the functional roles of these entities is the limitation of reactive oxygen species (ROS) produced by complex I (CI) of the respiratory chain. We sought to determine whether the systemic antioxidant effect of exercise is mediated by the assembly of mitochondrial CIs into SCs in rats. Male Wistar rats were exercise trained or remained sedentary for ten weeks; then, blood samples were collected, and the gastrocnemius muscle was isolated...
July 11, 2017: Redox Biology
https://www.readbyqxmd.com/read/28717150/a-comparison-of-traditional-and-novel-metrics-to-quantify-resistance-training
#7
Kieran J Marston, Jeremiah J Peiffer, Michael J Newton, Brendan R Scott
Common estimates of external training intensity for resistance exercise do not incorporate inter-set recovery duration, and might not reflect the overall demands of training. This study aimed to assess novel metrics of exercise density (ED) during resistance exercise, and how these related to a physiological marker of internal training intensity as well as traditional measures of external training intensity and volume. Thirteen males and seven females performed two bouts of resistance exercise focused on developing strength (5 sets of 5 repetitions with 5-repetition maximum; 180 s recovery) and hypertrophy (3 sets of 10 repetitions with 10-repetition maximum; 60 s recovery)...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28715597/the-proposal-of-a-clinical-protocol-to-assess-central-and-peripheral-fatigue-in-myotonic-dystrophy-type-1
#8
S Baldanzi, G Ricci, M Bottari, L Chico, C Simoncini, G Siciliano
DM1 is an autosomal-dominant disorder characterized by muscle weakness, myotonia, and multisystemic involvement. According to current literature fatigue and daytime sleepiness are among the main symptoms of DM1. Oxidative stress has been proposed to be one of the pathogenic factors of fatigue consequent to DM1. In this study, we investigated the dimensions of experienced fatigue and  physiological fatigue in a sample of 26 DM1 patients (17 males, 9 females, mean age 41.6 years, SD±12.7); experienced fatigue has been studied through Fatigue Severity Scale (FSS), and physiological fatigue was measured through an intermittent incremental exercise of the forearm muscles using a myometer; oxidative stress balance markers trend during aerobic exercise test have been collected...
July 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28715263/acute-effect-of-virtual-reality-exercise-bike-games-on-college-students-physiological-and-psychological-outcomes
#9
Nan Zeng, Zachary Pope, Zan Gao
Commercially available virtual reality (VR) exercise systems are extensively used in many health domains among clinical populations. However, evidence regarding the efficacy of this technology on healthy adults' health-related outcomes is unknown. This pilot study compared physiological and psychological responses following exercise on a VR-based exercise bike (VirZoom) and traditional stationary exercise bike. Twelve healthy college students (9 females; Mage = 25.01, SD = ± 4.74; MBMI = 22.84, SD = ± 3...
July 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28714404/current-and-emerging-strategies-in-osteoporosis-management
#10
Stefka Ivanova, Liliya Vasileva
The abnormal loss of bone tissue is defined as osteoporosis. Increased risk of fractures, low bone mineral density (BMD) and loss of the structural and biomechanical properties of the bone tissue characterize this pathological condition. Physiologically bone undergoes a continuous remodeling process involving balance between the activity of osteoblast and osteoclast. Disruption in this balanced condition increases the risk of osteoporosis. Both sexes are affected, but with higher prevalence in women after menopause...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28713460/effects-of-an-elastic-hamstring-assistance-device-during-downhill-running
#11
Randy L Aldret, Brittany A Trahan, Greggory Davis, Brian Campbell, David M Bellar
The purpose of this study was to determine the appropriateness of using an elastic hamstring assistance device to reduce perceived levels of soreness, increase isometric strength, increase passive range of motion, and decrease biomarkers of muscle damage after eccentric exercise, specifically, downhill running This study was conducted in a university exercise physiology laboratory placing sixteen apparently healthy males (X = 21.6 ± 2.5 years) into two groups using a pre-test/post-test design. Pre-intervention measures taken included participants' body height, body mass, body fat, capillary blood samples, VO2max, isometric hamstring strength at 45 and 90 degrees of flexion and passive hamstring range of motion...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28712262/evaluation-of-efforts-in-untrained-wistar-rats-following-exercise-on-forced-running-wheel-at-maximal-lactate-steady-state
#12
Sajjad Rezaei, Hamid Agha-Alinejad, Mahdieh Molanouri Shamsi, Mahvash Jafari, Fabricio Azevedo Voltarelli, Alireza Naderi, Conrad Earnest
PURPOSE: We aimed to examine the effect of running speed on metabolic responses associated with maximal lactate steady state (MLSS) in rats during forced running wheel (FRW) exercise. METHODS: Forty male adult Wistar rats were divided into seven groups. The blood lactate threshold and peak running speed were determined for an incremental power test group. Five groups participated in constant power tests at intensities 10, 13, 14.5, 16, and 17.5 m/min to determine MLSS and a non-exercise group was chosen as the control...
March 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28708697/simultaneous-physical-and-mental-effort-alters-visual-function
#13
Jesús Vera, Raimundo Jiménez, José Antonio García, David Cárdenas
PURPOSE: Perceptual processing is sensitive to physiological changes. Thus, the homeostatic disturbances during and after exercise may alter the visual function. Here, we investigated the effect of simultaneous physical effort and two levels of cognitive demand on skills related to the visuoperceptual and motor processing. METHODS: Eighteen male regular exercisers performed 60 minutes of simultaneous physical exercise (cycling at 60 ± 5% of reserve heart rate) and cognitive effort (mental workload)...
July 14, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28707283/multimodal-physical-activity-increases-brain-derived-neurotrophic-factor-levels-and-improves-cognition-in-institutionalized-older-women
#14
Kelem Vedovelli, Bruno Lima Giacobbo, Márcio Silveira Corrêa, Andréa Wieck, Irani Iracema de Lima Argimon, Elke Bromberg
Physical activity has been proposed as a promising intervention to improve cognition and decrease the risk of dementia in older adults. Brain-derived neurotrophic factor (BDNF) appears to mediate, at least partially, these effects of exercise. However, intervention studies of the effects of multimodal exercises on cognition and BDNF levels are scarce and composed by small samples. Thus, the generalization of the conclusions of these studies depends on the reproducibility of the results. In order to contribute to the knowledge on the field, the present study evaluated the effects of a physical activity intervention composed by muscle strengthening and aerobic conditioning on BDNF levels and cognition in older women...
July 13, 2017: GeroScience
https://www.readbyqxmd.com/read/28706859/role-of-metabolic-stress-for-enhancing-muscle-adaptations-practical-applications
#15
REVIEW
Marcelo Conrado de Freitas, Jose Gerosa-Neto, Nelo Eidy Zanchi, Fabio Santos Lira, Fabrício Eduardo Rossi
Metabolic stress is a physiological process that occurs during exercise in response to low energy that leads to metabolite accumulation [lactate, phosphate inorganic (Pi) and ions of hydrogen (H(+))] in muscle cells. Traditional exercise protocol (i.e., Resistance training) has an important impact on the increase of metabolite accumulation, which influences hormonal release, hypoxia, reactive oxygen species (ROS) production and cell swelling. Changes in acute exercise routines, such as intensity, volume and rest between sets, are determinants for the magnitude of metabolic stress, furthermore, different types of training, such as low-intensity resistance training plus blood flow restriction and high intensity interval training, could be used to maximize metabolic stress during exercise...
June 26, 2017: World Journal of Methodology
https://www.readbyqxmd.com/read/28706583/cardiac-damage-in-athlete-s-heart-when-the-supernormal-heart-fails
#16
REVIEW
Andreina Carbone, Antonello D'Andrea, Lucia Riegler, Raffaella Scarafile, Enrica Pezzullo, Francesca Martone, Raffaella America, Biagio Liccardo, Maurizio Galderisi, Eduardo Bossone, Raffaele Calabrò
Intense exercise may cause heart remodeling to compensate increases in blood pressure or volume by increasing muscle mass. Cardiac changes do not involve only the left ventricle, but all heart chambers. Physiological cardiac modeling in athletes is associated with normal or enhanced cardiac function, but recent studies have documented decrements in left ventricular function during intense exercise and the release of cardiac markers of necrosis in athlete's blood of uncertain significance. Furthermore, cardiac remodeling may predispose athletes to heart disease and result in electrical remodeling, responsible for arrhythmias...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28704555/a-system-model-of-the-effects-of-exercise-on-plasma-interleukin-6-dynamics-in-healthy-individuals-role-of-skeletal-muscle-and-adipose-tissue
#17
Micaela Morettini, Maria Concetta Palumbo, Massimo Sacchetti, Filippo Castiglione, Claudia Mazzà
Interleukin-6 (IL-6) has been recently shown to play a central role in glucose homeostasis, since it stimulates the production and secretion of Glucagon-like Peptide-1 (GLP-1) from intestinal L-cells and pancreas, leading to an enhanced insulin response. In resting conditions, IL-6 is mainly produced by the adipose tissue whereas, during exercise, skeletal muscle contractions stimulate a marked IL-6 secretion as well. Available mathematical models describing the effects of exercise on glucose homeostasis, however, do not account for this IL-6 contribution...
2017: PloS One
https://www.readbyqxmd.com/read/28704507/regular-moist-snuff-dipping-does-not-affect-endurance-exercise-performance
#18
Frida Björkman, Fredrik Edin, C Mikael Mattsson, Filip Larsen, Björn Ekblom
Physiological and medical effects of snuff have previously been obtained either in cross-sectional studies or after snuff administration to non-tobacco users. The effects of snuff cessation after several years of daily use are unknown. 24 participants with >2 years of daily snuff-use were tested before and after >6 weeks snuff cessation (SCG). A control group (CO) of 11 snuff users kept their normal habits. Resting heart rate (HR) and blood pressure (BP) were significantly lower in SCG after snuff cessation, and body mass was increased by 1...
2017: PloS One
https://www.readbyqxmd.com/read/28703035/influence-of-body-composition-on-physiological-responses-to-post-exercise-hydrotherapy
#19
Jessica M Stephens, Shona L Halson, Joanna Miller, Gary J Slater, Christopher D Askew
This study examined the influence of body composition on temperature and blood flow responses to post-exercise cold water immersion (CWI), hot water immersion (HWI) and control (CON). Twenty-seven male participants were stratified into three groups: 1) low mass and low fat (LM-LF); 2) high mass and low fat (HM-LF); or 3) high mass and high fat (HM-HF). Experimental trials involved a standardised bout of cycling, maintained until core temperature reached 38.5°C. Participants subsequently completed one of three 15-min recovery interventions (CWI, HWI, or CON)...
July 13, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28702506/prenatal-depression-risk-factors-developmental-effects-and-interventions-a-review
#20
Tiffany Field
This narrative review based on a literature search in PubMed and PsycInfo on the two terms prenatal and antenatal depression includes empirical studies, reviews and meta-analyses that have been published during the last 5 years on risk factors, developmental effects and interventions for prenatal depression. Risk factor studies that met criteria feature demographic measures (lower socioeconomic status, less education, non-marital status, non-employment, less social support and health locus of control, unintended pregnancy, partner violence and history of child abuse) and physiological variables (cortisol, amylase, and pro-inflammatory cytokines and intrauterine artery resistance)...
February 2017: Journal of Pregnancy and Child Health
keyword
keyword
79993
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"