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https://www.readbyqxmd.com/read/28095077/running-performance-with-nutritive-and-non-nutritive-sweetened-mouth-rinses
#1
Keely H Hawkins, Sridevi Krishnan, Lara Ringos, Vanessa Garcia, Jamie A Cooper
: Mouth rinsing (MR) with carbohydrate during exercise has been shown to act as an ergogenic aid. PURPOSE: To investigate if nutritive or nonnutritive sweetened MR affect exercise performance, and to assess the influence of sweetness intensity on endurance performance during a time-trial (TT). METHODS: This randomized, single blinded study had 4 treatment conditions. 16 subjects (9 men, 7 women) completed a 12.8km TT four different times. During each TT, subjects MR and expectorated a different solution at time 0 and every 12...
January 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28094132/cardiovascular-maladaptation-to-exercise-in-young-hypertensive-patients
#2
Maurizio Cusmà Piccione, Concetta Zito, Bijoy Khandheria, Antonio Madaffari, Alessandra Oteri, Gabriella Falanga, Domenica Donato, Myriam D'Angelo, Maria Ludovica Carerj, Gianluca Di Bella, Egidio Imbalzano, Pietro Pugliatti, Scipione Carerj
BACKGROUND: Impairment of the adaptive mechanisms that increase cardiac output during exercise can translate to a reduced functional capacity. We investigated cardiovascular adaptation to exertion in asymptomatic hypertensive patients, aiming to identify the early signs of cardiac and vascular dysfunction. METHODS AND RESULTS: We enrolled 54 subjects: 30 patients (45.1±11.9years, 19 males) and 24 age-matched healthy controls (44.4±9.6years, 14 males). Speckle-tracking echocardiography (STE) and echo-tracking were performed at rest and during exertion to assess myocardial deformation and arterial stiffness...
January 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28092144/exergaming-boxing-versus-heavy-bag-boxing-are-these-equipotent-for-individuals-with-spinal-cord-injury
#3
Maziah Mat Rosly, Hadi Mat Rosly, Nazirah Hasnan, Glen M Davis, Ruby Husain
BACKGROUND: Current strategies for increased physical activity and exercise in individuals with spinal cord injury (SCI) face many challenges with regards to maintaining their continuity of participation. Barriers cited often include problems with accessing facilities, mundane, monotonous or boring exercises and expensive equipment that is often not adapted for wheelchair users. AIM: To compare the physiological responses and user preferences between conventional heavy bag boxing against a novel form of video game boxing, known as exergaming boxing...
January 13, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28090146/rapid-weight-loss-in-the-context-of-ramadan-observance-recommendations-for-judokas
#4
REVIEW
A Aloui, H Chtourou, W Briki, M Tabben, A Chaouachi, N Souissi, R J Shephard, K Chamari
Judo is a weight-classified combat sport, and many athletes seek to compete at the lightest possible weight category to gain an advantage from competing against shorter/smaller, and supposedly weaker opponents. To achieve a desired weight, most judokas opt for rapid weight loss techniques. Short-duration maximal efforts are not greatly affected by "making weight", but prolonged and/or repeated exercise is significantly impaired. Negative effects on mood, ratings of perceived exertion, and cognitive function are also reported...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28090140/influence-of-warm-up-duration-and-recovery-interval-prior-to-exercise-on-anaerobic-performance
#5
M Frikha, N Chaâri, N Mezghanni, N Souissi
The purpose of the study was to determine the impact of different active warm-up (AWU) durations and the rest interval separating it from exercise on anaerobic performance. Eleven male physical education students (22.6 ± 2.52 years; 179.2 ± 4.3 cm; 82.5 ± 9.7 kg; mean ± SD) participated in a cross-over randomized study, and they all underwent the Wingate test after three AWU durations: 5 min (AWU5), 15 min (AWU15) and 20 min (AWU20), with recovery (WREC) or without a recovery interval (NREC) separating the AWU and anaerobic exercise performance...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28088610/the-effects-of-voluntary-wheel-running-on-neuroinflammatory-status-role-of-monocyte-chemoattractant-protein-1
#6
Lindsay J Spielman, Mehrbod Estaki, Sanjoy Ghosh, Deanna L Gibson, Andis Klegeris
The health benefits of exercise and physical activity (PA) have been well researched and it is widely accepted that PA is crucial for maintaining health. One of the mechanisms by which exercise and PA exert their beneficial effects is through peripheral immune system adaptations. To date, very few studies have looked at the regulation of neuroimmune reactions in response to PA. We studied the effect of voluntary wheel running (VWR) on pro- and anti-inflammatory cytokine levels, patterns of glial cell activation and expression of immune receptors in the brains of female C57BL/6 mice...
January 11, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28079704/modeling-perceived-exertion-during-graded-arm-cycling-exercise-in-spinal-cord-injury
#7
Jason S Au, Julia O Totosy de Zepetnek, Maureen J MacDonald
PURPOSE: Ratings of perceived exertion (RPE) may be useful for exercise testing and prescription in individuals with spinal cord injury (SCI), though the roles of differentiated central and peripheral fatigue during exercise are not clear. We aimed to model differentiated RPE responses during graded arm cycling in individuals with SCI and describe their relationship to cardiorespiratory outcomes. METHODS: Thirty-six individuals with SCI (13 paraplegia; 23 tetraplegia) completed a maximal graded-arm cycling exercise test to volitional exhaustion (5W/min paraplegia; 10W/min tetraplegia)...
January 10, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28078502/engagement-in-health-promoting-behaviors-and-patient-caregiver-interdependence-in-dyads-facing-advanced-cancer-an-exploratory-study
#8
Katrina R Ellis, Mary R Janevic, Trace Kershaw, Cleopatra H Caldwell, Nancy K Janz, Laurel Northouse
Diet and exercise are important for the wellbeing of people with cancer and their family caregivers. Unfortunately, little is known about their behaviors over time or factors that may influence their engagement in these behaviors. This exploratory study examined the influence of chronic conditions, symptom distress, and perceived social support on exercise and diet behaviors of patients with advanced cancer and their caregivers using the actor-partner interdependence mediation model (APIMeM) and interdependence theory as guiding frameworks...
January 11, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28076389/a-computational-study-on-the-relation-between-resting-heart-rate-and-atrial-fibrillation-hemodynamics-under-exercise
#9
Matteo Anselmino, Stefania Scarsoglio, Andrea Saglietto, Fiorenzo Gaita, Luca Ridolfi
AIMS: Clinical data indicating a heart rate (HR) target during rate control therapy for permanent atrial fibrillation (AF) and assessing its eventual relationship with reduced exercise tolerance are lacking. The present study aims at investigating the impact of resting HR on the hemodynamic response to exercise in permanent AF patients by means of a computational cardiovascular model. METHODS: The AF lumped-parameter model was run to simulate resting (1 Metabolic Equivalent of Task-MET) and various exercise conditions (4 METs: brisk walking; 6 METs: skiing; 8 METs: running), considering different resting HR (70 bpm for the slower resting HR-SHR-simulations, and 100 bpm for the higher resting HR-HHR-simulations)...
2017: PloS One
https://www.readbyqxmd.com/read/28076352/high-intensity-interval-training-elicits-higher-enjoyment-than-moderate-intensity-continuous-exercise
#10
Jacob S Thum, Gregory Parsons, Taylor Whittle, Todd A Astorino
: Exercise adherence is affected by factors including perceptions of enjoyment, time availability, and intrinsic motivation. Approximately 50% of individuals withdraw from an exercise program within the first 6 mo of initiation, citing lack of time as a main influence. Time efficient exercise such as high intensity interval training (HIIT) may provide an alternative to moderate intensity continuous exercise (MICT) to elicit substantial health benefits. This study examined differences in enjoyment, affect, and perceived exertion between MICT and HIIT...
2017: PloS One
https://www.readbyqxmd.com/read/28069460/epilepsy-and-exercise-an-experimental-study-in-female-rats
#11
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/28068681/hypoxia-and-hyperoxia-affect-serum-angiogenic-regulators-in-t2dm-men-during-cycling
#12
C Brinkmann, A Metten, P Scriba, C V M Tagarakis, P Wahl, J Latsch, K Brixius, W Bloch
Exercise-induced transient increases in pro-angiogenic regulators can promote angiogenesis.This pilot study aims to analyze the potential of exercise to positively affect angiogenic regulators in patients with type 2 diabetes mellitus (T2DM), who often exhibit abnormal angiogenesis, under different environmental conditions. 9 overweight/obese men with uncomplicated T2DM (8 took anti-diabetic drugs) performed submaximal cycling for 40 min in normoxia (≈21 vol%O2), hypoxia (≈14 vol%O2) and during alternating hypoxia/hyperoxia (≈14 vol%O2/≈30 vol%O2, 5-min intervals) (3×3 crossover design)...
January 9, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28062247/severe-apical-hypertrophic-cardiomyopathy-with-ser-236-gly-mutation-in-mybpc3-a-three-year-follow-up-investigation
#13
XueJiang Cen, JianLei Zheng, XueLie Hu, BaiMing Qu
Apical hypertrophic cardiomyopathy (AHCM) is a relatively rare form of hypertrophic cardiomyopathy (HCM) and usually involved with genetic variations encoding sarcomeric proteins. In this report, a 68-year-old male presented with exertional angina and giant negative T-waves in the precordial leads V3-V6 was eventually diagnosed with severe AHCM by echocardiography and left ventriculogram. The entire coding Sequences of the most frequent HCM-causing genes were analyzed. A novel mutation of Ser 236 Gly in myosin-binding protein C (MYBPC3) gene was discovered...
January 3, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28060977/-validation-of-the-borg-scale-in-participants-with-type-2-diabetes-mellitus
#14
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/28060273/induction-and-assessment-of-exertional-skeletal-muscle-damage-in-humans
#15
Michael R Deyhle, Jacob R Sorensen, Robert D Hyldahl
Contraction-induced muscle damage via voluntary eccentric (lengthening) contractions offers an excellent model for studying muscle adaptation and recovery in humans. Herein we discuss the design of an eccentric exercise protocol to induce damage in the quadriceps muscles, marked by changes in strength, soreness, and plasma creatine kinase levels. This method is simple, ethical, and widely applicable since it is performed in human participants and eliminates the interspecies translation of the results. Subjects perform 300 maximal eccentric contractions of the knee extensor muscles at a speed of 120°/sec on an isokinetic dynamometer...
December 11, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28057048/a-preliminary-study-of-a-novel-emergency-department-nursing-triage-simulation-for-research-applications
#16
Steven L Dubovsky, Daniel Antonius, David G Ellis, Werner Ceusters, Robert C Sugarman, Renee Roberts, Sevie Kandifer, James Phillips, Elsa C Daurignac, Kenneth E Leonard, Lisa D Butler, Jessica P Castner, G Richard Braen
BACKGROUND: Studying the effect on functioning of the emergency department of disasters with a potential impact on staff members themselves usually involves table top and simulated patient exercises. Computerized virtual reality simulations have the potential to configure a variety of scenarios to determine likely staff responses and how to address them without intensive utilization of resources. To decide whether such studies are justified, we determined whether a novel computer simulation has the potential to serve as a valid and reliable model of on essential function in a busy ED...
January 3, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28051345/how-does-interval-training-prescription-impact-physiological-and-perceptual-responses
#17
Stephen Seiler, Øystein Sylta
The purpose of this study was to compare physiological responses and perceived exertion among well trained cyclists (n=63) performing three different high intensity interval training (HIIT) prescriptions differing in work bout duration and accumulated duration, but all prescribed with maximal session effort. Data are presented as mean(Standard Deviation). Subjects (male, 38(8) y, VO2peak 62(6) mL.kg(-1) min(-1)) completed up to 24 HIIT sessions over 12 weeks as part of a training intervention study. Sessions were prescribed as 4x16 min, 4x8 min, or 4x4 min with 2 min recovery periods (8 sessions of each prescription, balanced over time)...
January 4, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28051341/effects-of-compression-garment-pressure-on-recovery-from-strenuous-exercise
#18
Jessica Hill, Glyn Howatson, Ken van Someren, David Gaze, Hayley Legg, Jack Lineham, Charles Pedlar
Compression garments are frequently used to facilitate recovery from strenuous exercise. Purpose To identify the effects of two different grades of compression garment on recovery indices following strenuous exercise. Methods Forty five recreationally active participants (n=26 males and n=19 females) completed an eccentric exercise protocol consisting of 100 drop jumps. Following the exercise protocol participants were matched for body mass and randomly but equally assigned to either a high (HI) compression pressure group, a low (LOW) compression pressure group, or a sham ultrasound group (SHAM)...
January 4, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28050930/the-effects-of-crushed-ice-ingestion-prior-to-steady-state-exercise-in-the-heat
#19
Matthew Zimmermann, Grant Landers, Karen E Wallman, Jacinta Saldaris
This study examined the physiological effects of crushed ice ingestion prior to steady state exercise in the heat. Ten healthy males with age (23±3 y), height (176.9±8.7 cm), body-mass (73.5±8.0 kg), V̇O2peak (48.5±3.6 mL·kg·min(-1)) participated in the study. Participants completed 60 min of cycling at 55% of their V̇O2peak preceded by 30 min of pre-cooling whereby 7 g·kg(-1) of thermoneutral water (CON) or crushed ice (ICE) was ingested. The reduction in Tc at the conclusion of pre-cooling was greater in ICE (-0...
January 4, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28039521/echs1-deficiency-associated-paroxysmal-exercise-induced-dyskinesias-case-presentation-and-initial-benefit-of-intervention
#20
Abhimanyu Mahajan, Jules Constantinou, Christos Sidiropoulos
Paroxysmal exercise-induced dyskinesias (PED) are paroxysmal dyskinesias which manifest as dystonic movements brought on by sustained exercise. ECHS1 deficiency-induced EID was recently described by Olgiati et al. Our patient is an 8-year-old boy, who presented with intermittent episodes of stiffness and contractions affecting the legs which were always brought on by vigorous exertion. They began with curling of the toes and flexion, followed by stiffening of gait. These episodes were asymmetric, uncomfortable and often began in the left leg, often spreading to the right leg...
December 30, 2016: Journal of Neurology
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