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https://www.readbyqxmd.com/read/29038351/differences-in-oxidative-metabolism-modulation-induced-by-ischemia-reperfusion-between-trained-and-untrained-individuals-assessed-by-nirs
#1
Rogério N Soares, Kaitlin M McLay, Mitchell A George, Juan M Murias
Endurance training is associated with skeletal muscle adaptations that regulate the oxidative metabolism during ischemia/reperfusion. The aim of this study was to noninvasively assess in vivo differences in the oxidative metabolism activity during ischemia/reperfusion between trained and untrained individuals, using near infrared spectroscopy (NIRS) combined with a vascular occlusion test (VOT) technique (NIRS-VOT). Sixteen untrained (26.3 ± 5.1 year) and seventeen trained (29.4 ± 4.9 year) healthy young adult men were submitted to a VOT (2 min baseline, 5 min occlusion, and 8 min reperfusion)...
October 2017: Physiological Reports
https://www.readbyqxmd.com/read/29016475/relationship-between-physiological-off-ice-testing-on-ice-skating-and-game-performance-in-division-i-women-s-ice-hockey-players
#2
Michelle Boland, Emily M Miele, Katie Delude
The purpose was to identify off-ice testing variables that correlate to skating and game performance in Division I collegiate women ice hockey players. Twenty female, forward and defensive players (19.95 ± 1.35 yr) were assessed for weight, height, percent fat mass (%FAT), bone mineral density, predicted one repetition maximum (RM) absolute and relative (REL%) bench press (BP) and hex bar deadlift (HDL), lower body explosive power, anaerobic power, countermovement vertical jump (CMJ), maximum inspiratory pressure (MIP), and on-ice repeated skate sprint (RSS) performance...
October 7, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28991983/natural-and-enhanced-attenuation-of-explosives-on-a-hand-grenade-range
#3
Robert C Borden, Jongho Won, Bilgen Yuncu
2,4,6-Trinitrotoluene (TNT) and hexahydro-1,3,5-trinitro-1,3,5-triazine (Royal Demolition Explosive, or RDX) deposited on hand grenade training ranges can leach through the soil and impact shallow groundwater. A 27-mo field monitoring project was conducted to evaluate the transport and attenuation of high explosives in variably saturated soils at an active grenade range located at Fort Bragg, NC. Two approaches were evaluated: (i) natural attenuation in grenade Bay C; and (ii) enhanced attenuation in Grenade Bay T...
September 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28990651/randomized-feasibility-trial-of-high-intensity-interval-training-before-elective-abdominal-aortic-aneurysm-repair
#4
G A Tew, A M Batterham, K Colling, J Gray, K Kerr, E Kothmann, S Nawaz, M Weston, D Yates, G Danjoux
BACKGROUND: This study assessed the feasibility of a preoperative high-intensity interval training (HIT) programme in patients awaiting elective abdominal aortic aneurysm repair. METHODS: In this feasibility trial, participants were allocated by minimization to preoperative HIT or usual care. Patients in the HIT group were offered three exercise sessions per week for 4 weeks, and weekly maintenance sessions if surgery was delayed. Feasibility and acceptability outcomes were: rates of screening, eligibility, recruitment, retention, outcome completion, adverse events and adherence to exercise...
October 9, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28966710/in-season-high-intensity-interval-training-improves-conditioning-in-high-school-soccer-players
#5
Neal Howard, Stasinos Stavrianeas
Soccer is characterized by high aerobic demands interspersed with frequent bursts of anaerobic activity. High-intensity interval training (HIIT) is considered a viable alternative to traditional endurance conditioning and offers the additional time-saving benefits of anaerobic training. We hypothesized that HIIT will compare favorably to traditional (aerobic-based) soccer conditioning over the course of a high school soccer season. Junior varsity soccer players were split into control (CON, n=16) and experimental (HIIT, n=16) groups for the 10-week study...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28965346/impact-of-5-days-of-sprint-training-in-hypoxia-on-performance-and-muscle-energy-substances
#6
Nobukazu Kasai, Chihiro Kojima, Daichi Sumi, Hideyuki Takahashi, Kazushige Goto, Yasuhiro Suzuki
The present study was designed to determine the effect of 5 consecutive days of repeated sprint training under hypoxia on anaerobic performance and energy substances. Nineteen male sprinters performed repeated sprints for 5 consecutive days under a hypoxic (HYPO; fraction of inspired oxygen [FiO2], 14.5%) or normoxic (NOR; FiO2, 20.9%) condition. Before and after the training period, 10-s maximal sprint, repeated sprint ability (5×6-s sprints), 30-s maximal sprint, and maximal oxygen uptake (VO2max) tests were conducted...
October 1, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28935128/quality-of-life-and-sleep-quality-are-similarly-improved-after-aquatic-or-dry-land-aerobic-training-in-patients-with-type-2-diabetes-a-randomized-clinical-trial
#7
Rodrigo S Delevatti, Felipe Barreto Schuch, Ana Carolina Kanitz, Cristine L Alberton, Elisa Corrêa Marson, Salime Chedid Lisboa, Carolina Dertzbocher Feil Pinho, Luciana Peruchena Bregagnol, Maríndia Teixeira Becker, Luiz Fernando M Kruel
OBJECTIVES: To compare the effects of two aerobic training models in water and on dry-land on quality of life, depressive symptoms and sleep quality in patients with type 2 diabetes. DESIGN: Randomized clinical trial. METHODS: Thirty-five patients with type 2 diabetes were randomly assigned to aquatic aerobic training group (n=17) or dry-land aerobic training group (n=18). Exercise training length was of 12 weeks, performed in three weekly sessions (45min/session), with intensity progressing from 85% to 100% of heart rate of anaerobic threshold during interventions...
September 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28933715/rating-of-perceived-exertion-for-quantification-of-training-and-combat-loads-during-combat-sport-specific-activities-a-short-review
#8
Maamer Slimani, Philip Davis, Emerson Franchini, Wassim Moalla
The aim of this short review was to summarize data pertaining to the rating of perceived exertion (RPE) methods (RPE value and session-RPE) during combat sport-specific activities (i.e., competition and training) based on many factors, including contest type (i.e., official vs. simulated vs. training), combat rounds, age of participants and muscle groups, and their correlation with physiological variables (i.e., blood lactate concentration [La] and heart rate [HR]). The current review shows higher RPE in a match of mixed martial arts (MMAs) than Brazilian jiu-jitsu and kickboxing matches and during the competitive period compared with the precompetitive period...
October 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930880/cycling-power-outputs-predict-functional-threshold-power-and-maximum-oxygen-uptake
#9
Joshua Denham, John Scott-Hamilton, Amanda D Hagstrom, Adrian J Gray
Functional threshold power (FTP) has emerged as a correlate of lactate threshold and is commonly assessed by recreational and professional cyclists for tailored exercise programing. To identify whether results from traditional aerobic and anaerobic cycling tests could predict FTP and V˙ O2max, we analysed the association between estimated FTP, maximum oxygen uptake (V˙ O2max [mlkgmin]) and power outputs obtained from a maximal cycle ergometry cardiopulmonary exercise test (CPET) and a 30-s Wingate test in a heterogeneous cohort of cycle-trained and untrained individuals (N=40, mean±SD; age: 32...
September 11, 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
#10
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/28899656/greater-ankle-strength-anaerobic-and-aerobic-capacity-and-agility-predict-ground-combat-military-occupational-school-graduation-in-female-marines
#11
Katelyn Fleishman Allison, Karen A Keenan, Meleesa F Wohleber, Katherine A Perlsweig, Erin R Pletcher, Mita Lovalekar, Kim Beals, Lawrence C Coleman, Bradley C Nindl
Women can serve in all military occupational specialties (MOS); however, musculoskeletal and physiological characteristics that predict successful completion of ground combat MOS schools by female Marines are unknown. OBJECTIVES: To determine which demographic, musculoskeletal, and physiological characteristics predict graduation from infantry and vehicle ground combat MOS schools in female Marines. DESIGN: Prospective cohort study. METHODS: Prior to MOS school, the following were assessed in 62 female Marines (22...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28865866/postexercise-hypotension-during-different-water-based-concurrent-training-intrasession-sequences-in%C3%A2-young-women
#12
Stephanie Santana Pinto, Daniel Umpierre, Hector Kerchirne Ferreira, Gabriela Neves Nunes, Rodrigo Ferrari, Cristine Lima Alberton
The purpose of the study was to compare the acute effects of water-based resistance-aerobic (RA) and aerobic-resistance (AR) sequences on systolic blood pressure, diastolic blood pressure (DBP), and mean blood pressure (MBP) in young women. Thirteen active women participated in four sessions: (1) exercises familiarization, (2) aquatic maximal test to determine the heart rate (HR) corresponding to the anaerobic threshold (HRAT), (3) concurrent protocol RA, and (4) concurrent protocol AR. Both protocols were initiated with the blood pressure measurements at rest in supine position...
August 24, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28864310/cost-effective-treatment-of-swine-wastes-through-recovery-of-energy-and-nutrients
#13
Adib Amini, Veronica Aponte-Morales, Meng Wang, Merrill Dilbeck, Ori Lahav, Qiong Zhang, Jeffrey A Cunningham, Sarina J Ergas
Wastes from concentrated animal feeding operations (CAFOs) are challenging to treat because they are high in organic matter and nutrients. Conventional swine waste treatment options in the U.S., such as uncovered anaerobic lagoons, result in poor effluent quality and greenhouse gas emissions, and implementation of advanced treatment introduces high costs. Therefore, the purpose of this paper is to evaluate the performance and life cycle costs of an alternative system for treating swine CAFO waste, which recovers valuable energy (as biogas) and nutrients (N, P, K(+)) as saleable fertilizers...
August 29, 2017: Waste Management
https://www.readbyqxmd.com/read/28858057/effects-of-six-weeks-sprint-strength-and-agility-training-on-body-composition-cardiovascular-and-physiological-parameters-of-male-field-hockey-players
#14
Hanjabam Barun Sharma, Jyotsna Kailashiya
Optimal physiological and cardiovascular characteristics are essential for optimal physical performance. Different types of training regimes affect these characteristics and lead to trainee's adaptation and changes in relevant parameters. In present interventional study we have evaluated effects of six weeks sprint-strength & agility training on such parameters. Twenty four young Indian national hockey players volunteered for this study. BW(weight), BMI, BF (%body fat), LBM (lean body mass), rHR (resting heart rate), rBP (blood pressure), rDP (double-product), P/power (using Running-based Anaerobic Sprint Test), VJ (vertical jump), SP (seated shot-put test), BS (ball-hitting speed), Tm (505-agility test) & VO2max were measured, and changes (d) after specified training regime were studied...
August 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28838226/intradialytic-exercise-improves-physical-function-and-reduces-intradialytic-hypotension-and-depression-in-hemodialysis-patients
#15
So Yon Rhee, Jin Kyung Song, Suk Chul Hong, Jae Won Choi, Hee Jung Jeon, Dong Ho Shin, Eun Hee Ji, Eun-Hee Choi, Jiyeon Lee, Aram Kim, Seung Wook Choi, Jieun Oh
Background/Aims: As numbers of maintenance hemodialysis patients are growing, debilitating conditions of muscle wasting and atrophy are becoming some of the greatest concerns in end-stage renal disease patients. Exercise training has various potential benefits in terms of prevention of a sustained decline in functional status. This study aimed to evaluate the physical, psychological, laboratory, and dialysis-related effects of intradialytic exercise. Methods: We enrolled 22 patients from a hemodialysis center for a 6-month non-randomized prospective trial...
August 25, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28826274/the-effect-of-a-running-intervention-on-running-ability-and-participation-in-children-with-cerebral-palsy-a-randomized-controlled-trial
#16
Noula Gibson, Annie Chappell, Amanda Marie Blackmore, Susan Morris, Gavin Williams, Natasha Bear, Garry Allison
PURPOSE: The purpose of this study is to evaluate effects of a running intervention on running ability and participation in children with cerebral palsy. MATERIALS AND METHOD: Children with cerebral palsy (9-18 years) with Gross Motor Function Classification System levels I-III were randomly assigned to a 12-week running intervention or usual care. Primary outcomes included improvement in running ability (assessed by Goal Attainment Scaling, high level mobility (assessed by the High-Level Mobility Assessment Tool) and participation (assessed by the Participation and Environment Measure for Children and Youth)...
August 21, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28811191/can-psychological-well-being-scales-and-hormone-levels-be-used-to-predict-acute-performance-of-anaerobic-training-tasks-in-elite-female-volleyball-players
#17
Juan Mielgo-Ayuso, Michael C Zourdos, Vicente J Clemente-Suárez, Julio Calleja-González, Amber M Shipherd
The purpose of this study was to examine relationships between pre-training psychological well-being assessment scales (General Health Questionnaire-28-GHQ-28, Competitive State Anxiety Inventory-2-CSAI-2, Sport Competition Anxiety Test-SCAT, State-Trait Anxiety Inventory-S-STAI-S, Oviedo Sleep Questionnaire-OSQ and Psychological Characteristics Related to Sport Performance-PCSP), and pre-training stress hormone concentrations (cortisol-C, total testosterone-TT, free testosterone-FT, adrenocorticotropic hormone-ACTH and testosterone/cortisol-T/C ratios), on acute neuromuscular performance (ANP) in female volleyballers...
August 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28807684/influence-of-velotron-chainring-size-on-wingate-anaerobic-test
#18
Nicolas W Clark, Dale R Wagner, Edward M Heath
OBJECTIVES: This study compared an 85-tooth versus the standard 62-tooth chainring for power outputs during a Wingate test using a Velotron electromagnetically-braked cycle ergometer. DESIGN: All participants completed trials using both chainring sizes in a repeated-measures cross-over design. METHODS: Resistance-trained male participants (n=20, 24.6±4.5years) performed two Wingate tests separated by at least 48h. Peak power (PP), mean power (MP), fatigue index (FI), peak cadence, mean cadence, and total work (TW) were recorded...
August 2, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28800636/combined-sprint-and-resistance-training-abrogates-age-differences-in-somatotropic-hormones
#19
Maha Sellami, Wissem Dhahbi, Lawrence D Hayes, Johnny Padulo, Fatma Rhibi, Hanen Djemail, Anis Chaouachi
The aim of this investigation was to compare serum growth hormone (GH), insulin-like growth factor-1 (IGF-1) and insulin-like growth factor-binding protein-3 (IGFBP-3) in response to a combined sprint and resistance training (CSRT) program in young and middle-aged men.Thirty-eight healthy, moderately trained men participated in this study. Young and middle-aged men were randomly assigned to, a young training group (YT = 10, 21.4±1.2yrs) ora young control group (YC = 9, 21.6±1.8 yrs), a middle-aged training group (MAT = 10, 40...
2017: PloS One
https://www.readbyqxmd.com/read/28797049/effect-of-sodium-bicarbonate-on-prolonged-running-performance-a-randomized-double-blind-cross-over-study
#20
RANDOMIZED CONTROLLED TRIAL
Tanja Freis, Anne Hecksteden, Ulf Such, Tim Meyer
BACKGROUND: The ability to sustain intense exercise seems to be partially limited by the body's capability to counteract decreases in both intra- and extracellular pH. While the influence of an enhanced buffering capacity via sodium bicarbonate (BICA) on short-term, high-intensity exercise performance has been repeatedly investigated, studies on prolonged endurance performances are comparatively rare, especially for running. The aim of the following study was to assess the ergogenic effects of an oral BICA substitution upon exhaustive intensive endurance running performance...
2017: PloS One
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