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Journals Medicine and Science in Sports...

Medicine and Science in Sports and Exercise

https://read.qxmd.com/read/38233995/sex-differences-in-sympathetic-responses-to-lower-body-negative-pressure
#21
JOURNAL ARTICLE
Caitlin P Jarrard, Joseph C Watso, Whitley C Atkins, Zachary J McKenna, Josh Foster, Mu Huang, Luke N Belval, Craig G Crandall
INTRODUCTION: Trauma-induced hemorrhage is a leading cause of death in prehospital settings. Experimental data demonstrate that females have a lower tolerance to simulated hemorrhage (i.e., central hypovolemia). However, the mechanism(s) underpinning these responses are unknown. Therefore, this study aimed to compare autonomic cardiovascular responses during central hypovolemia between the sexes. We hypothesized that females would have a lower tolerance and smaller increase in muscle sympathetic nerve activity (MSNA) to simulated hemorrhage...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233993/the-effect-of-an-early-life-motor-skill-intervention-on-physical-activity-in-growth-restricted-mice
#22
JOURNAL ARTICLE
Eric C Leszczynski, Megan E Thorn, Josie Szlachetka, Mei-Hua Lee, David P Ferguson
INTRODUCTION: Early life growth-restriction significantly increases the risk of adulthood physical inactivity and thereby chronic disease incidence. Improvements in motor skill acquisition could result in greater physical activity engagement in the growth-restricted population thus reducing chronic disease risk. The purpose of this study was to implement an early life motor training intervention to improve physical activity engagement in control and growth-restricted mice. METHODS: Mice were growth-restricted in early life utilizing a validated nutritive model or remained fully nourished in early life as a control...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233992/advances-in-adherence-reporting-of-resistance-training-in-a-clinical-trial-during-adjuvant-chemotherapy-for-colon-cancer
#23
JOURNAL ARTICLE
Kristin L Campbell, Justin C Brown, Catherine Lee, Erin Weltzien, Jia Li, Barbara Sternfeld, Nancy Campbell, Michele Vaughan, Regan Fedric, Jeffrey A Meyerhardt, Bette J Caan, Kathryn H Schmitz
PURPOSE: Detailed reporting of individually tailored exercise prescriptions (ExRx) used in clinical trials is essential to describe feasibility, tolerability, and efficacy of the intervention and to inform translation to clinical care. This paper outlines the methodology used to develop a resistance training (RT) ExRx for people with colon cancer receiving chemotherapy and reports adherence to the randomized controlled trial testing the impact of RT on relative dose intensity of chemotherapy and patient-reported toxicities...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233990/effects-of-a-cycling-versus-running-hiit-program-on-fat-mass-loss-and-gut-microbiota-composition-in-men-with-overweight-obesity
#24
JOURNAL ARTICLE
Anaëlle Couvert, Leslie Goumy, Florie Maillard, Alexandre Esbrat, Kassandra Lanchais, Célia Saugrain, Charlotte Verdier, Eric Doré, Caroline Chevarin, Djamel Adjtoutah, Claire Morel, Bruno Pereira, Vincent Martin, Antonio H Lancha, Nicolas Barnich, Benoît Chassaing, Mélanie Rance, Nathalie Boisseau
PURPOSE: High-intensity interval training (HIIT) can efficiently decrease total and (intra-) abdominal fat mass (FM); however, the effects of running versus cycling HIIT programs on FM reduction have not been compared yet. Additionally, the link between HIIT-induced FM reduction and gut microbiota must be better investigated. The aim of this study was to compare the effects of two 12-week HIIT isoenergetic programs (cycling vs. running) on body composition and fecal microbiota composition in nondieting men with overweight or obesity...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233988/diagnosis-to-delivery-a-randomized-clinical-trial-of-postmeal-walking-in-women-with-gestational-diabetes
#25
JOURNAL ARTICLE
Hannah E Christie, Meagan Winter, Barbara J Meyer, Monique E Francois
PURPOSE: The aim of this study was to determine whether advice to perform postmeal walking could be an effective and feasible alternate to standard-care continuous walking for the management of gestational diabetes (GDM). METHODS: Forty women with GDM were randomised between 28-30 weeks' gestation into either standard-care (CTL; 30-min continuous walking, most days/wk) or standard-care with advice to PMW (daily 10-min walks after three main meals) for ~seven weeks...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233983/prevalence-of-drug-use-in-ultra-endurance-athletes
#26
JOURNAL ARTICLE
Paul Robach, Gilles Trebes, Corinne Buisson, Nathalie Mechin, Monica Mazzarino, Flaminia Garribba, Matthieu Roustit, Jean-Louis Quesada, Brice Lefèvre, Guido Giardini, Sophie de Seigneux, Francesco Botré, Pierre Bouzat
PURPOSE: In competitive sport, classic methods of measuring drug prevalence, such as doping controls or questionnaires, are challenging. Here we describe a novel urine sampling method to measure drug use in athletes. We hypothesize that the prevalence of drug use in ultramarathon runners is measured more accurately with our sampling method than randomized-response questionnaires. METHODS: Urine samples and associated demographic data were collected from male participants using blind, automated urinals at the start of ultramarathon races...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233981/concussion-symptoms-and-neurocognitive-performance-of-children-and-adolescents-on-antidepressants
#27
JOURNAL ARTICLE
Mary M Daley, David R Howell, Corey J Lanois, Paul D Berkner, Rebekah C Mannix, Jessie R Oldham, William P Meehan
INTRODUCTION/PURPOSE: There is a well-established association between pre-existing depression/anxiety and greater post-concussion symptom burden, but the potential impact of antidepressant medications has not been fully explored. The primary objective of this study was to compare pre-injury/baseline and post-injury concussion symptom scores and neurocognitive performance of athletes on antidepressant medications, both with healthy controls and with those with depression/anxiety not on antidepressants...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233979/regular-running-is-related-to-the-knee-joint-cartilage-structure-in-healthy-adults
#28
JOURNAL ARTICLE
Daniel Jandacka, Victor Casula, Joseph Hamill, Dominik Vilímek, Vera Kristýna Jandackova, Steriani Elavsky, Jaroslav Uchytil, Jan Plesek, Jiří Skýpala, Milos Golian, Michal Burda, Miika T Nieminen
PURPOSE: The purpose of this study was to determine whether regular running distance and biomechanics are related to medial central femur cartilage (MCFC) structure. METHODS: The cross-sectional study sample consisted of 1164 runners and non-runners aged 18-65 years. Participants completed questionnaires on physical activity and their running history. We performed quantitative magnetic resonance imaging of knee cartilage - T2 relaxation time (T2) mapping (high T2 indicate cartilage degeneration), and a running biomechanical analysis using a 3-D motion capture system...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233977/running-40-minutes-under-temperate-or-hot-environment-does-not-affect-operating-fascicle-length
#29
JOURNAL ARTICLE
Adèle Mornas, Franck Brocherie, Enzo Hollville, Thomas Derouck, Sébastien Racinais, Gaël Guilhem
PURPOSE: Muscle mechanics is paramount in our understanding of motor performance. However, little is known regarding the sensitivity of fascicle dynamics and connective tissues stiffness to exercise duration and ambient temperature during running, both increasing muscle temperature. This study aimed to determine gastrocnemius medialis (GM) fascicle dynamics in vivo during running in temperate and hot conditions, as well as muscle-tendon unit responses. METHODS: Using ultrafast ultrasound, fifteen participants (8 men, 7 women, 26 ± 3 years) were tested before, during (2 and 40 min) and after a running task (40 min at 10 km...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38233976/metabolic-and-perceptual-responses-to-constant-heart-rate-exercise-at-vigorous-intensities-in-women
#30
JOURNAL ARTICLE
Djadmann Gustave, Clara J Mitchinson, Pasquale J Succi, Brian Benitez, Minyoung Kwak, Kathryn R Lanphere, Jody L Clasey, Haley C Bergstrom
PURPOSE: This study quantified the metabolic demands (oxygen uptake [V̇O2]), power output adjustments, changes in the V̇O2/power output ratio, and perceptual responses (rating of perceived exertion [RPE]) during constant heart rate (HR) exercise performed within the vigorous intensity range (77-95% HRpeak). METHODS: Twelve women (mean ± SD age: 22 ± 4 years) performed a graded exercise test to exhaustion to determine peak parameters and 3, randomly ordered, constant HR trials to exhaustion or for 60 min at the lower (HRL = 77% HRpeak), middle (HRM = 86% HRpeak), and higher (HRH = 95% HRpeak) end of the vigorous intensity range...
January 18, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38294836/regarding-do-intramuscular-temperature-and-fascicle-angle-affect-ultrasound-echo-intensity-values
#31
JOURNAL ARTICLE
Heiliane de Brito Fontana, Gabriela Alvarez, Everson A Nunes, Cinthia Correa, Walter Herzog
No abstract text is available yet for this article.
January 16, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38227543/simple-and-complex-wheel-running-effect-on-depression-memory-neuroinflammation-and-neurogenesis-in-alzheimer-s-rat-model
#32
JOURNAL ARTICLE
Vahid Talebi, Karim Azali Alamdar, Darpan I Patel
INTRODUCTION: The aim of this study was to investigate 12-weeks of simple and complex voluntary wheel running on Alzheimer's Disease (AD), associated biomarkers and behaviors. METHODS: 60 male Wistar rats were randomly divided into six groups: Healthy Control (Con-Sed), AD only (AD-Sed), Simple Wheel-Control (SWC), Complex Wheel-Control (CWC), Simple Wheel-AD (SWAD) and Complex Wheel-AD (CWAD). Novelty-suppressed feeding test (NSFT) and the Morris water maze (MWM) test were used to evaluate depression and memory, respectively...
January 16, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38227488/injury-incidence-severity-and-type-across-the-menstrual-cycle-in-female-footballers-a-prospective-three-season-cohort-study
#33
JOURNAL ARTICLE
Ally Barlow, Joanna M Blodgett, Sean Williams, Charles R Pedlar, Georgie Bruinvels
PURPOSE: The aim of the study was to assess the influence of menstrual cycle phase on injury incidence, severity and type in elite female professional footballers over three seasons. METHODS: Time-loss injuries and menstrual cycle data were prospectively recorded for 26 elite female football players across three seasons. The menstrual cycle was categorised into four phases using a standardised model: menstruation (phase 1; P1), remainder of follicular phase (phase 2; P2), early luteal (phase 3; P3), and pre-menstrual phase (phase 4; P4)...
January 12, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38227482/nociceptive-processing-of-elite-athletes-varies-between-sport-specific-loads-an-eeg-based-study-approach
#34
JOURNAL ARTICLE
Elias Dreismickenbecker, Johannes Fleckenstein, Carmen Walter, Elena K Enax-Krumova, Michael J M Fischer, Matthias Kreuzer, Sebastian Zinn, Malte Anders
INTRODUCTION: For the downstream nociceptive processing of elite athletes recent studies indicate that athletes probably tolerate more pain as compared to a normally active population. Phenotyping the nociceptive processing of athletes in different types of endurance sports can provide insight into training-specific effects, which may help in understanding the long-term effects of specific exercise. METHODS: 26 elite endurance athletes from the disciplines of rowing, triathlon and running, and 26 age and sex-matched, recreationally active control subjects the subjective pain perception and processing of standardized noxious stimuli were investigated by EEG...
January 12, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38196147/the-association-between-cardiorespiratory-fitness-and-the-risk-of-breast-cancer-in-women
#35
JOURNAL ARTICLE
Ioanna Katsaroli, Labros Sidossis, Christina Katsagoni, Xuemei Sui, Christina Cadenas-Sanchez, Jonathan Myers, Charles Faselis, Rayelynn Murphy, Immanuel Babu Henry Samuel, Peter Kokkinos
INTRODUCTION: Studies have shown an inverse association between the risk of breast cancer in women and physical activity. However, information on the association between cardiorespiratory fitness (CRF) assessed objectively by a standardized test and the risk of developing breast cancer is limited. PURPOSE: To examine the CRF-breast cancer risk association in healthy females. METHODS: This retrospective study was derived from the ETHOS cohort (n = 750,302)...
January 10, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38194704/energy-requirements-of-paralympic-athletes-insights-from-the-doubly-labeled-water-approach
#36
JOURNAL ARTICLE
Vera C R Weijer, Kristin L Jonvik, Lotte van Dam, Linn Risvang, Guy Plasqui, Øyvind Sandbakk, Truis Raastad, Luc J C van Loon, Jan-Willem van Dijk
PURPOSE: Advanced insight in energy requirements of Paralympic athletes is imperative for optimizing their nutritional counseling. Given the lack of accurate data on total daily energy expenditure (TDEE) of Paralympic athletes, this study aimed to assess energy expenditure and nutritional intake of a large cohort of Paralympic athletes, across different sports and disabilities. METHODS: In this cross-sectional study, 48 Dutch and Norwegian Paralympic athletes (19 male/29 female) with various disabilities, competing in Para cycling, wheelchair tennis, wheelchair basketball, Para Nordic skiing and alpine skiing participated...
January 10, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38190393/does-aerobic-exercise-increase-skeletal-muscle-mass-in-female-and-male-adults
#37
JOURNAL ARTICLE
Robert Ross, Emily John, Chis McGlory, Lance E Davidson, Paula J Stotz
INTRODUCTION: It is uncertain whether aerobic exercise in the form of walking contributes to the preservation or increase in total or regional skeletal muscle mass (SMM). PURPOSE: To determine the effects of aerobic exercise on total and regional (upper body verses leg SMM) in male (n = 105) and female (n = 133) adults with overweight and obesity. METHODS: A retrospective analysis of data from four randomized controlled trials. Participants included those who completed the given trial (Control, n = 63; Intervention, n = 175), and with complete magnetic resonance imaging (MRI) measured adipose tissue and SMM pre- and post-intervention...
January 8, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38190382/more-variability-in-tibialis-anterior-function-during-adduction-of-the-foot-than-dorsiflexion-of-the-ankle
#38
JOURNAL ARTICLE
Ioannis G Amiridis, Theodoros Kannas, Chrysostomos Sahinis, Francesco Negro, Georgios Trypidakis, Eleftherios Kellis, Roger M Enoka
INTRODUCTION: The aim of the study was to compare maximal force, force steadiness, and the discharge characteristics of motor units in the tibialis anterior (TA) muscle during submaximal isometric contractions for ankle dorsiflexion and adduction of the foot. METHODS: Nineteen active young adults performed maximal and submaximal isometric dorsiflexion and adduction contractions at five target forces (5, 10, 20, 40, and 60% MVC). The activity of motor units in TA was recorded by high-density electromyography (EMG)...
January 8, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38190376/exercise-training-independent-of-intensity-lowers-plasma-bile-acids-in-prediabetes
#39
JOURNAL ARTICLE
Steven K Malin, U S Afsheen Syeda
INTRODUCTION: People with obesity have high circulating bile acids (BA). Although aerobic fitness favors low circulating BAs, the effect of training intensity prior to clinically meaningful weight loss on BA is unclear. Test the hypothesis that 2-wks of interval (INT) versus continuous (CONT) exercise would lower plasma BAs in relation to insulin sensitivity. METHODS: Twenty-three older adults with prediabetes (ADA criteria) were randomized to 12 work-matched bouts of INT (n = 11; 60...
January 8, 2024: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/38190373/lack-of-proprioceptive-strategy-modulation-leads-to-at-risk-biomechanics-for-anterior-cruciate-ligament-in-healthy-athletes
#40
JOURNAL ARTICLE
Brice Picot, Mathieu Lempereur, Baptiste Morel, Nicolas Forestier, Olivier Rémy-Néris
INTRODUCTION: Anterior cruciate ligament (ACL) injuries are frequent in handball and altered sensory integration may contribute to increased injury risk. Recent evidence showed that proprioceptive postural control strategies differ among athletes. The aim of this study was to evaluate the relationship between proprioceptive strategy and biomechanics during side-cutting manoeuvres. METHODS: 47 handball players performed anticipated (CUT ant ) and unanticipated (CUT unant ) cutting tasks...
January 8, 2024: Medicine and Science in Sports and Exercise
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