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https://www.readbyqxmd.com/read/29771208/healthcare-managers-perceptions-of-managing-poor-performance
#1
Melanie Hill, Heather Gluyas, Martinique Sandy, Andrew Wingate
Purpose The purpose of this paper is to understand the perceptions and experiences of healthcare managers working within a community and ambulatory health service who manage poorly performing staff and, to identify the supports, and gaps in supports, that are available to these managers. Design/methodology/approach Data were collected via two focus groups using a semi-structured schedule. The data were transcribed, themed and conclusions summarised. Findings On analysis of the discussion of the line managers' experiences and perceptions of competence, six themes were identified, five themes common to both groups...
May 21, 2018: Journal of Health Organization and Management
https://www.readbyqxmd.com/read/29761312/recovery-of-upper-body-muscle-power-after-short-intensive-exercise-comparing-boys-and-men
#2
Yitzhak Weinstein, Omri Inbar, Ron Mor-Unikovski, Anthony Luder, Gal Dubnov-Raz
PURPOSE: Boys' lower-body muscle power generation (PO) recovers faster than men's following intensive exercise. The purpose of this study was to examine whether boys differ from adult men in recovering from upper-body muscle power generation following intensive exercise. METHODS: Fifteen prepubertal boys (M ± SD age 10.6 ± 1.0 years) and 13 men (31.1 ± 5.0 years) performed two upper-body Wingate Anaerobic Tests (WAnT), separated by either 2-min or 10-min recovery intervals...
May 14, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29740332/metabolic-and-fatigue-profiles-are-comparable-between-prepubertal-children-and-well-trained-adult-endurance-athletes
#3
Anthony Birat, Pierre Bourdier, Enzo Piponnier, Anthony J Blazevich, Hugo Maciejewski, Pascale Duché, Sébastien Ratel
The aim of this study was to determine whether prepubertal children are metabolically comparable to well-trained adult endurance athletes and if this translates into similar fatigue rates during high-intensity exercise in both populations. On two different occasions, 12 prepubertal boys (10.5 ± 1.1 y), 12 untrained men (21.2 ± 1.5 y), and 13 endurance male athletes (21.5 ± 2.7 y) completed an incremental test to determine the power output at VO2max (PVO2max ) and a Wingate test to evaluate the maximal anaerobic power (Pmax ) and relative decrement in power output (i...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29722590/correcting-vitamin-d-insufficiency-improves-some-but-not-all-aspects-of-physical-performance-during-winter-training-in-taekwondo-athletes
#4
Hyun Chul Jung, Myong Won Seo, Sukho Lee, Sung Woo Jung, Jong Kook Song
We investigated the effects of vitamin D3 supplementation on physical performance during winter training in vitamin D insufficient taekwondo (TKD) athletes. Thirty-five collegiate male and female TKD athletes, aged 19-22 years with low serum 25(OH)D concentration (28.8±1.10 nmol/L) were randomly assigned to a vitamin D group (N=20) or a placebo group (N=15). Subjects received either a vitamin D3 capsule (5,000 IU/day) or placebo during four weeks of winter training. Blood samples were collected for analyzing serum 25(OH)D concentration...
May 3, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29719513/adaptive-changes-after-2-weeks-of-10-s-sprint-interval-training-with-various-recovery-times
#5
Robert A Olek, Sylwester Kujach, Ewa Ziemann, Wieslaw Ziolkowski, Piotr Waz, Radoslaw Laskowski
Purpose: The aim of this study was to compare the effect of applying two different rest recovery times in a 10-s sprint interval training session on aerobic and anaerobic capacities as well as skeletal muscle enzyme activities. Methods: Fourteen physically active but not highly trained male subjects (mean maximal oxygen uptake 50.5 ± 1.0 mlO2 ·kg-1 ·min-1 ) participated in the study. The training protocol involved a series of 10-s sprints separated by either 1-min (SIT10:1) or 4-min (SIT10:4) of recovery...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29698982/a-fast-track-to-hypoalgesia-the-anaerobic-exercise-effect-on-pain-sensitivity
#6
Gil Samuelly-Leichtag, Einat Kodesh, Yoav Meckel, Irit Weissman-Fogel
Maximal anaerobic exercise, is a short high intensity effort, involves activation of the hypothalamus-pituitary-adrenal axis, and may suggest hypoalgesic effects. In addition, this exercise-induced muscle pain may contribute to hypoalgesia via the pain inhibits pain phenomenon, which is related to the diffuse noxious inhibitory control (DNIC) mechanism. We aimed to investigate whether: 1) a single bout of 30 s maximal anaerobic exercise has an analgesic effect on experimental pain sensitivity; 2) DNIC is the underlying mechanism of anaerobic exercise-induced hypoalgesia (EIH)...
April 26, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29619799/low-carbohydrate-ketogenic-diet-impairs-anaerobic-exercise-performance-in-exercise-trained-women-and-men-a-randomized-sequence-crossover-trial
#7
Kymberly A Wroble, Morgan N Trott, George G Schweitzer, Rabia S Rahman, Patrick V Kelly, Edward P Weiss
BACKGROUND: Low-carbohydrate, ketogenic diets cause mild, sub-clinical systemic acidosis. Anaerobic exercise performance is limited by acidosis. Therefore, we evaluated the hypothesis that a low-carbohydrate, ketogenic diet impairs anaerobic exercise performance, as compared to a high-carbohydrate diet. METHODS: Sixteen men and women (BMI, 23±1 kg/m2, age 23±1 yr) participated in a randomized-sequence, counterbalanced crossover study in which they underwent exercise testing after four days of either a low-carbohydrate, ketogenic diet (LC; <50 g/day and <10% of energy from carbohydrates) or a high-carbohydrate diet (HC; 6-10 g/kg/day carbohydrate)...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29615918/skeletal-muscle-pyruvate-dehydrogenase-phosphorylation-and-lactate-accumulation-during-sprint-exercise-in-normoxia-and-severe-acute-hypoxia-effects-of-antioxidants
#8
David Morales-Alamo, Borja Guerra, Alfredo Santana, Marcos Martin-Rincon, Miriam Gelabert-Rebato, Cecilia Dorado, José A L Calbet
Compared to normoxia, during sprint exercise in severe acute hypoxia the glycolytic rate is increased leading to greater lactate accumulation, acidification, and oxidative stress. To determine the role played by pyruvate dehydrogenase (PDH) activation and reactive nitrogen and oxygen species (RNOS) in muscle lactate accumulation, nine volunteers performed a single 30-s sprint (Wingate test) on four occasions: two after the ingestion of placebo and another two following the intake of antioxidants, while breathing either hypoxic gas (PI O2 = 75 mmHg) or room air (PI O2 = 143 mmHg)...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29570580/effects-of-exercise-induced-muscle-damage-in-well-trained-cyclists-aerobic-and-anaerobic-performance
#9
Fábio C Karasiak, Luiz Guilherme A Guglielmo
This study purpose was to analyze the effect of EIMD in gross efficiency and in aerobic and anaerobic cycling performance. Nine well-trained cyclists (30.8 ± 6.4 years, cycling experience 8.4 ± 5.6 years) visited the laboratory 5 times. During the first visit, they performed a maximal incremental test on a cycle ergometer, to identify VO2max (55.2 ± 4.9 mL.kg.min) and maximum aerobic power (Pmax; 327.0 ± 28.5 watts). During the second visit (control), they cycled 5 minutes at 60% of Pmax, 5 minutes at 70% of Pmax, 5 minutes time-trial, and Wingate test...
March 22, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29570578/evaluation-of-seasonal-changes-in-fitness-anthropometrics-and-body-composition-in-collegiate-division-ii-female-soccer-players
#10
Ashley N Peart, Clayton R Nicks, Michael Mangum, Brian M Tyo
The purpose of this study was to investigate anthropometrics, body composition, aerobic and anaerobic fitness of collegiate Division II female soccer players throughout a calendar year. Eighteen (20 ± 0.9y) NCAA division II female soccer players from the same team participated in the study. Anthropometrics and body composition variables were assessed in addition to the Counter Movement Jump (CMJ), Wingate Anaerobic Test (WAT), and peak oxygen uptake (VO2peak). Data were collected over five time points: end of competitive seasons (ECS1 and ECS2), beginning of off-season (BOS), end of off-season (EOS), and pre-season (PS)...
March 22, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29562992/economic-analysis-of-cdc-s-culture-and-smear-based-tuberculosis-instructions-for-filipino-immigrants
#11
B Maskery, D L Posey, M S Coleman, R Asis, W Zhou, J A Painter, L T Wingate, M Roque, M S Cetron
SETTING: In 2007, the US Centers for Disease Control and Prevention (CDC) revised its tuberculosis (TB) technical instructions for panel physicians who administer mandatory medical examinations among US-bound immigrants. Many US-bound immigrants come from the Philippines, a high TB prevalence country. OBJECTIVE: To quantify economic and health impacts of smear- vs. culture-based TB screening. DESIGN: Decision tree modeling was used to compare three Filipino screening programs: 1) no screening, 2) smear-based screening, and 3) culture-based screening...
April 1, 2018: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29558345/irisin-and-myostatin-responses-to-acute-high-intensity-interval-exercise-in-humans
#12
Banu Kabak, Muaz Belviranli, Nilsel Okudan
Background The purpose of this study was to investigate irisin and myostatin responses to acute high-intensity interval exercise. Materials and methods Ten male professional kick-boxers aged between 18 and 24 years and 10 sedentary males with similar age and body weight participated in the present study. Participants performed 4 × 30-s Wingate test separated with 4 min of rest. Blood samples were taken immediately before and after exercise, and 3 and 6 h of recovery. Results and conclusion At rest, irisin levels were higher in the kick-boxers (p < 0...
March 20, 2018: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/29527927/acute-beetroot-juice-administration-improves-peak-isometric-force-production-in-adolescent-males
#13
David Bender, Jeremy R Townsend, William Vantrease, Autumn C Marshall, Ruth N Henry, Stephen Heffington, Kent D Johnson
The purpose of this study was to examine the effects of acute beetroot juice (BR) administration on repeated sprint performance and isometric force production in adolescent males. Twelve male adolescents (16.8 ± 1.0 yrs; 178.8 ± 9.2 cm; 74.8 ± 12.5 kg; peak height velocity: 2.53 ± 1.2 yrs) participated in this double-blind, placebo-controlled, crossover designed study. Participants consumed 2 x 70 mL of BR (~12.9 mmol NO3¯; Beet It Sport®) or a nitrate-depleted placebo (PL) 2.5 hours prior to performing isometric mid-thigh pulls (IMTP) and four repeated 20-second Wingate sprints (S1-S4) interspersed with 4 minutes of rest...
March 10, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29485326/the-effect-of-10-days-of-intermittent-fasting-on-wingate-anaerobic-power-and-prolonged-high-intensity-time-to-exhaustion-cycling-performance
#14
Mohamed Nashrudin Bin Naharudin, Ashril Yusof
Many physically active individuals have undertaken intermittent fasting to reduce their daily caloric intake. However, abstaining from meals for a specific length of time may lead to the acute disturbance of highly carbohydrate-dependent exercise performance. The purpose of this study was to observe the effect of 10 days of intermittent fasting on high-intensity type exercises, Wingate anaerobic (WT) and prolonged high-intensity time-to-exhaustion (HIT) cycling test. Twenty participants were randomised into an intermittent fasting (FAS) and a control group (CON)...
February 27, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29478383/relationship-between-skeletal-muscle-contractile-properties-and-power-production-capacity-in-female-olympic-rugby-players
#15
Pedro L Valenzuela, Zigor Montalvo, G Sánchez-Martínez, Elaia Torrontegi, J De La Calle-Herrero, R Domínguez-Castells, Nicola A Maffiuletti, Pedro De La Villa
This study aimed to determine which contractile properties measured by tensiomyography (TMG) could better differentiate athletes with high- and low-power values, as well as to analyse the relationship between contractile properties and power production capacity. The contractile properties of the vastus medialis (VM), rectus femoris (RF) and vastus lateralis (VL) of an Olympic women's Rugby Sevens team (n = 14) were analysed before a Wingate test in which their peak power output (PPO) was determined. Athletes were then divided into a high-power (HP) and a low-power (LP) group...
February 24, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29478331/transitioning-from-learning-healthcare-systems-to-learning-health-care-communities
#16
C Daniel Mullins, La'Marcus T Wingate, Hillary A Edwards, Toyin Tofade, Anthony Wutoh
The learning healthcare system (LHS) model framework has three core, foundational components. These include an infrastructure for health-related data capture, care improvement targets and a supportive policy environment. Despite progress in advancing and implementing LHS approaches, low levels of participation from patients and the public have hampered the transformational potential of the LHS model. An enhanced vision of a community-engaged LHS redesign would focus on the provision of health care from the patient and community perspective to complement the healthcare system as the entity that provides the environment for care...
February 26, 2018: Journal of Comparative Effectiveness Research
https://www.readbyqxmd.com/read/29474207/health-related-fitness-in-preschool-children-with-and-without-motor-delays
#17
Sara King-Dowling, Christine Rodriguez, Cheryl Missiuna, Brian W Timmons, John Cairney
PURPOSE: School-age children with Developmental Coordination Disorder (DCD) have poor health-related fitness (HRF), but little is known about when these deficits emerge. The purpose of this study was to determine if 4- and 5-year old children who meet the criteria for DCD exhibit poorer HRF than typically developing (TD) children, and if this relationship is mediated by vigorous physical activity (VPA) engagement. METHODS: Five-hundred and ninety-two children participated (age 5...
February 23, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29473785/muscle-morphology-of-the-vastus-lateralis-is-strongly-related-to-ergometer-performance-sprint-capacity-and-endurance-capacity-in-olympic-rowers
#18
Stephan van der Zwaard, Guido Weide, Koen Levels, Michelle R I Eikelboom, Dionne A Noordhof, Mathijs J Hofmijster, Willem J van der Laarse, Jos J de Koning, Cornelis J de Ruiter, Richard T Jaspers
Rowers need to combine high sprint and endurance capacities. Muscle morphology largely explains muscle power generating capacity, however, little is known on how muscle morphology relates to rowing performance measures. The aim was to determine how muscle morphology of the vastus lateralis relates to rowing ergometer performance, sprint and endurance capacity of Olympic rowers. Eighteen rowers (12♂, 6♀, who competed at 2016 Olympics) performed an incremental rowing test to obtain maximal oxygen consumption, reflecting endurance capacity...
February 23, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29461421/tethered-swimming-test-reliability-and-the-association-to-swimming-performance-and-land-based-anaerobic-performance
#19
Jacquelyn Nagle Zera, Elizabeth F Nagle, Takashi Nagai, Mita Lovalekar, John P Abt, Scott M Lephart
The purpose of this study was three-fold: (a) to examine the test-retest reliability of a 30 second maximal tethered freestyle swimming test (TST), (b) to assess the validity of the TST by examining the association to sprint swimming performance and, (c) to examine the associations between a swim-specific and land-based measure of anaerobic performance. A total of twenty-nine male and female swimmers were recruited to participate in the study. Each participant completed a Wingate Anaerobic cycling test (WAnT), two or four TST, and a 22...
February 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29461416/relationship-between-physiologic-tests-body-composition-changes-and-on-ice-playing-time-in-canadian-collegiate-hockey-players
#20
Patrick Delisle-Houde, Nathan A Chiarlitti, Ryan E R Reid, Ross E Andersen
Delisle-Houde, P, Chiarlitti, NA, Reid, RER, and Andersen, RE. Relationship between physiologic tests, body composition changes, and on-ice playing time in canadian collegiate hockey players. J Strength Cond Res 32(5): 1297-1302, 2018-Hockey player's body composition and physical fitness are suggested to influence coaching decisions regarding on-ice playing time. The purpose of this study was to explore the relationship between seasonal body composition changes, off-ice preseason testing, and on-ice metrics...
May 2018: Journal of Strength and Conditioning Research
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