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https://www.readbyqxmd.com/read/28922065/a-study-examining-the-effect-of-a-short-bout-of-postprandial-walking-on-the-glycemic-effect-of-a-meal-type-1-diabetes
#1
Samantha L Hinojosa, Cynthia J Heiss
OBJECTIVE: The purpose of this pilot study was to determine whether 15 minutes of postprandial walking has an effect on the glycemic response to a breakfast beverage in individuals with type 1 diabetes (T1DM). METHODS: Seven participants, aged 22.3 ± 4.3 years, with T1DM using intensive insulin therapy completed 2 days of data collection. On day 1, participants measured baseline fasting blood glucose (BG) with a glucometer, consumed an 8-ounce Boost® beverage (41 grams carbohydrate), administered a bolus of insulin according to the carbohydrate load and fasting BG, and sat quietly, repeating BG measurements 15, 30, 60, 90, and 120 minutes after consumption...
September 18, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28921742/processing-of-temporally-patterned-sounds-in-the-auditory-cortex-of-seba-s-short-tailed-bat-carollia-perspicillata
#2
Lisa M Martin, Francisco García-Rosales, M Jerome Beetz, Julio C Hechavarría
This article presents a characterization of cortical responses to artificial and natural temporally-patterned sounds in the bat species Carollia perspicillata, a species that produces vocalizations at rates above 50 Hz. Multi-unit activity was recorded in three different experiments. In the first experiment, amplitude modulated (AM) pure tones were used as stimuli to drive auditory cortex (AC) units. AC units of both ketamine-anesthetized and awake bats could lock their spikes to every cycle of the stimulus modulation envelope, but only if the modulation frequency was below 22 Hz...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28912629/spinal-manipulation-does-not-affect-pressure-pain-thresholds-in-the-absence-of-neuromodulators-a-randomized-controlled-trial
#3
Max K Jordon, Paul F Beattie, Sarah D'Urso, Sarah Scriven
BACKGROUND: Measurement of pressure pain threshold (PPT) is a way to determine one of the many potential treatment effects of spinal manipulative therapy. OBJECTIVE: To determine how multiple spinal manipulations administered in a single-session affected PPTs at local and distal sites in asymptomatic individuals. METHODS: Participants were randomly assigned into one of three groups: Group one (n = 18) received a lumbar manipulation followed by a cervical manipulation...
September 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28902115/repeated-high-intensity-cycling-performance-is-unaffected-by-timing-of-carbohydrate-ingestion
#4
Ren-Jay Shei, Hunter L Paris, Christopher P Beck, Robert F Chapman, Timothy D Mickleborough
To determine whether carbohydrate feeding taken immediately before, early, or late in a series of high-intensity cycling exercises affected cycling performance 16 trained, male cyclists (> 6hr post-prandial) performed three, 4-km cycling time trials (TT1, TT2, TT3) separated by 15 min of active recovery on four separate occasions. Carbohydrate feeding (80g) was given either before TT1 (PRE1), before TT2 (PRE2), before TT3 (PRE3), or not at all (control, CTL). Treatment order was randomized. Sweet-placebo was given prior to the other time trials...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28902113/comparative-effects-of-two-interval-shuttle-run-training-modes-on-physiological-and-performance-adaptations-in-female-professional-futsal-players
#5
Anderson S Teixeira, Francimara B Arins, Ricardo D De Lucas, Lorival J Carminatti, Naiandra Dittrich, Fábio Yuzo Nakamura, Luiz Guilherme A Guglielmo
The purpose of the present study was to analyze the effects of two shuttle-run interval training (SRIT) models with one and three directional changes per running bout on the aerobic and anaerobic performances of elite female futsal players. Sixteen players competing in the Brazilian National Division League took part in the study. The training protocols consisted of shuttle-run intervals organized in four sets of 4-min bouts with 3- min of rest intervals between the sets. The SRIT models were composed of one (7...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28902111/the-influence-of-foam-rolling-on-recovery-from-exercise-induced-muscle-damage
#6
Anthony P D'Amico, Jason Gillis
The purpose of this study was to examine the impact of foam rolling (FR) on recovery from exercise-induced muscle damage (EIMD). Thirty-seven males performed 40 x 15 m sprints, inducing muscle damage. Immediately following sprinting and in the four days following, perceived muscle soreness, hip abduction range of motion (ROM), hamstring muscle length, vertical jump, and agility measures were recorded. Eighteen subjects (mean ± sd; age 22.4 ± 2.0 yrs; BMI 26.9 ± 4.2 kgm) foam rolled prior to testing each day (FR), while 19 (mean ± sd; age 23...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28860165/influence-of-nutrient-ingestion-on-amino-acid-transporters-and-protein-synthesis-in-human-skeletal-muscle-after-sprint-exercise
#7
Håkan Claes Rundqvist, Mona Esbjörnsson, Olav Rooyackers, Ted Osterlund, Marcus Moberg, William Apró, Eva Blomstrand, Eva Jansson
Nutrient ingestion is known to increase the exercise-induced stimulation of muscle protein synthesis following resistance exercise. Less is known about the effect of nutrients on muscle protein synthesis following sprint exercise. At two occasions separated by one month, twelve healthy subjects performed three 30-s sprints with 20-min rest between bouts. In randomized order, they consumed a drink with essential amino acids and maltodextrin (nutrient) or flavored water (placebo). Muscle biopsies were obtained 80 and 200 min after the last sprint and blood samples were taken repeatedly during the experiment...
August 31, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28859014/comparisons-in-the-recovery-response-from-resistance-exercise-between-young-and-middle-aged-men
#8
Joseph A Gordon, Jay R Hoffman, Eliott Arroyo, Alyssa N Varanoske, Nicholas A Coker, Yftach Gepner, Adam J Wells, Jeffrey R Stout, David H Fukuda
The purpose of this study was to compare the effects of a bout of high-volume isokinetic resistance exercise (HVP) on lower-body strength and markers of inflammation and muscle damage during recovery between young and middle-aged men. Nineteen recreationally-trained men were classified as either a young adult (YA: 21.8 ± 2.0 y; 90.7 ± 11.6 kg) or middle-aged adult (MA: 47.0 ± 4.4 y; 96.0 ± 21.5 kg) group. The HVP consisted of 8 sets of 10 repetitions, with one minute of rest between each set, performed on an isokinetic dynamometer at 60°·sec...
August 29, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28838344/inflammatory-and-immune-responses-to-a-3-day-period-of-downhill-running-in-active-females
#9
S Jafariyan, A Monazzami, Z Nikosefat, M Nobahar, K Yari
Exercise-induced muscle damage (EIMD) is accompanied by inflammatory and immune responses. However, due to the repeated bout effect, there will probably be less EIMD. Hence, the purpose was to investigate inflammatory and immune responses over a three-day period of downhill running in active females. Eleven moderately trained healthy females performed three 60-minute bouts of downhill running in -13.5% grade, separated by 24 hours, at a speed eliciting 70-80% of their VO2peak on level grade. Delayed onset muscle soreness (DOMS), range of motion (ROM) and maximum knee isotonic strength (1RM) were measured pre- and two-hour post every bout...
August 15, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28831951/protein-ingestion-preserves-proteasome-activity-during-intense-aseptic-inflammation-and-facilitates-skeletal-muscle-recovery-in-humans
#10
RANDOMIZED CONTROLLED TRIAL
Dimitrios Draganidis, Niki Chondrogianni, Athanasios Chatzinikolaou, Gerasimos Terzis, Leonidas G Karagounis, Apostolos Sovatzidis, Alexandra Avloniti, Maria Lefaki, Maria Protopapa, Chariklia K Deli, Konstantinos Papanikolaou, Athanasios Z Jamurtas, Ioannis G Fatouros
The ubiquitin-proteasome system (UPS) is the main cellular proteolytic system responsible for the degradation of normal and abnormal (e.g. oxidised) proteins. Under catabolic conditions characterised by chronic inflammation, the UPS is activated resulting in proteolysis, muscle wasting and impaired muscle function. Milk proteins provide sulphur-containing amino acid and have been proposed to affect muscle inflammation. However, the response of the UPS to aseptic inflammation and protein supplementation is largely unknown...
August 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28810683/evaluating-the-physiological-and-perceptual-responses-of-wearing-a-newly-designed-cooling-vest-for-construction-workers
#11
Yijie Zhao, Wen Yi, Albert P C Chan, Francis K W Wong, Michael C H Yam
Construction workers are subjected to heat stress because of the hot environment, physically demanding tasks, and/or personal protective equipment. A tailor-made cooling vest that protects construction workers from heat-related injuries was developed. The purpose of the study is to examine a newly designed cooling vest's effectiveness in alleviating physiological and perceptual strain in a hot and humid environment. Twelve male participants performed two trials, i.e., cooling vest (VEST) and control (CON) in a climatic chamber controlled at 37°C temperature, 60% relative humidity, 0...
August 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28803797/m-wave-normalization-of-emg-signal-to-investigate-heat-stress-and-fatigue
#12
Olivier Girard, David J Bishop, Sébastien Racinais
OBJECTIVES: We examined the extent to which peripheral changes affect EMG signal adjustments during repeated sprinting in temperate and hot conditions. DESIGN: Randomised, crossover study. METHODS: Ten males performed 10×6-s 'all-out' cycling sprints (recovery=30s) in either a temperate (24°C/30%rH) or a hot (35°C/40%rH) environment with concomitant surface EMG recordings of the vastus lateralis (VL) and rectus femoris (RF). In addition, peak-to-peak M-wave amplitudes were obtained for each muscle after each sprint (i...
July 31, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28796902/spatio-temporal-variation-in-lifelong-telomere-dynamics-in-a-long-term-ecological-study
#13
Lewis G Spurgin, Kat Bebbington, Eleanor A Fairfield, Martijn Hammers, Jan Komdeur, Terry Burke, Hannah L Dugdale, David S Richardson
Understanding individual-level variation in response to the environment is fundamental to understanding life-history evolution and population dynamics. Telomeres, the protective caps at the ends of chromosomes, shorten in response to oxidative stress, and telomere shortening is correlated with reduced survival and lifespan. Investigating telomere dynamics may help us quantify individual variation in the costs experienced from social and ecological factors, and enhance our understanding of the dynamics of natural populations...
August 10, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28796240/glucocorticoid-receptor-expression-on-circulating-leukocytes-in-healthy-and-asthmatic-adolescents-in-response-to-exercise
#14
Kim D Lu, Dan Cooper, Fadia Haddad, Frank Zaldivar, Monica Kraft, Shlomit Radom-Aizik
BackgroundPoor aerobic fitness is associated with worsening of asthma symptoms, and fitness training may improve asthma control. The mechanism linking fitness with asthma is not known. We hypothesized that repeated bouts of exercise would lead to a downregulation of glucocorticoid receptor (GR) expression on circulating leukocytes, reflecting a reduced responsiveness to stress.MethodsIn a prospective exercise training intervention of healthy and asthmatic adolescents, GR expression in leukocytes was measured using flow cytometry in response to an acute exercise challenge before and after the exercise training intervention...
August 2017: Pediatric Research
https://www.readbyqxmd.com/read/28767135/phenotypic-outcomes-in-adolescence-and-adulthood-in-the-scarcity-adversity-model-of-low-nesting-resources-outside-the-home-cage
#15
Tiffany S Doherty, Jennifer Blaze, Samantha M Keller, Tania L Roth
Early life adversity is known to disrupt behavioral trajectories and many rodent models have been developed to characterize these stress-induced outcomes. One example is the scarcity-adversity model of low nesting resources. This model employs resource scarcity (i.e., low nesting materials) to elicit adverse caregiving conditions (including maltreatment) toward rodent neonates. Our lab utilizes a version of this model wherein caregiving exposures occur outside the home cage during the first postnatal week. The aim of this study was to determine adolescent and adult phenotypic outcomes associated with this model, including assessment of depressive- and anxiety-like behaviors and performance in different cognitive domains...
September 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28763620/acute-effects-of-exercise-intensity-on-subsequent-substrate-utilisation-appetite-and-energy-balance-in-men-and-women
#16
Ghalia Shamlan, Paul Bech, M Denise Robertson, Adam L Collins
Exercise is capable of influencing the regulation of energy balance by acutely modulating appetite and energy intake coupled to effects on substrate utilization. Yet, few studies have examined acute effects of exercise intensity on aspects of both energy intake and energy metabolism, independently of energy cost of exercise. Furthermore, little is known as to the gender differences of these effect. One hour after a standardised breakfast, 40 (19 female), healthy participants (BMI 23.6±3.6 kg.m-2, VO2peak 34...
August 1, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28751932/does-regular-exercise-counter-t-cell-immunosenescence-reducing-the-risk-of-developing-cancer-and-promoting-successful-treatment-of-malignancies
#17
REVIEW
James E Turner, Patricia C Brum
Moderate intensity aerobic exercise training or regular physical activity is beneficial for immune function. For example, some evidence shows that individuals with an active lifestyle exhibit stronger immune responses to vaccination compared to those who are inactive. Encouragingly, poor vaccine responses, which are characteristic of an ageing immune system, can be improved by single or repeated bouts of exercise. In addition, exercise-induced lymphocytosis, and the subsequent lymphocytopenia, is thought to facilitate immune surveillance, whereby lymphocytes search tissues for antigens derived from viruses, bacteria, or malignant transformation...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28750246/healing-and-or-breaking-the-mental-health-implications-of-repeated-economic-insecurity
#18
Barry Watson, Lars Osberg
Current literature confirms the negative consequences of contemporaneous economic insecurity for mental health, but ignores possible implications of repeated insecurity. This paper asks how much a person's history of economic insecurity matters for psychological distress by contrasting the implications of two models. Consistent with the health capital literature, the Healing model suggests psychological distress is a stock variable affected by shocks from life events, with past events having less impact than more recent shocks...
September 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28736511/effects-of-methylsulfonylmethane-msm-on-exercise-induced-oxidative-stress-muscle-damage-and-pain-following-a-half-marathon-a-double-blind-randomized-placebo-controlled-trial
#19
Eric D Withee, Kimberly M Tippens, Regina Dehen, Deanne Tibbitts, Douglas Hanes, Heather Zwickey
BACKGROUND: Oxidative stress and muscle damage occur during exhaustive bouts of exercise, and many runners report pain and soreness as major influences on changes or breaks in training regimens, creating a barrier to training persistence. Methylsulfonylmethane (MSM) is a sulfur-based nutritional supplement that is purported to have pain and inflammation-reducing effects. To investigate the effects of MSM in attenuating damage associated with physical exertion, this randomized, double-blind, placebo-controlled study evaluated the effects of MSM supplementation on exercise-induced pain, oxidative stress and muscle damage...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28716317/long-term-complications-of-the-neurogenic-bladder
#20
REVIEW
Unwanaobong Nseyo, Yahir Santiago-Lastra
It is widely accepted that neurogenic lower urinary tract dysfunction, when left untreated, has a natural history that has a potential for causing deterioration of renal function over time. However, certain patient profiles are at risk for this and other complications. This can be linked to their underlying neurologic disease process. Identifying risk profiles allows the provider to determine what surveillance strategies might be adopted. Risk factors for upper urinary tract deterioration include loss of bladder compliance, repeated bouts of pyelonephritis, and chronic indwelling catheterization...
August 2017: Urologic Clinics of North America
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