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https://www.readbyqxmd.com/read/29124370/popular-weight-loss-strategies-a-review-of-four-weight-loss-techniques
#1
REVIEW
Jonathan Obert, Michelle Pearlman, Lois Obert, Sarah Chapin
PURPOSE OF REVIEW: The purpose of this paper is to review the epidemiology of obesity and the most recent literature on popular fad diets and exercise regimens that are used for weight loss. The weight loss plans that will be discussed in this article include juicing or detoxification diets, intermittent fasting, the paleo diet, and high intensity training. RECENT FINDINGS: Despite the growing popularity of fad diets and exercise plans for weight loss, there are limited studies that actually suggest these particular regimens are beneficial and lead to long-term weight loss...
November 9, 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/29123485/intensifying-functional-task-practice-to-meet-aerobic-training-guidelines-in-stroke-survivors
#2
Liam P Kelly, Augustine J Devasahayam, Arthur R Chaves, Elizabeth M Wallack, Jason McCarthy, Fabien A Basset, Michelle Ploughman
Objective: To determine whether stroke survivors could maintain workloads during functional task practice that can reach moderate levels of cardiometabolic stress (i.e., ≥40% oxygen uptake reserve ([Formula: see text]O2R) for ≥20 min) without the use of ergometer-based exercise. Design: Cross-sectional study using convenience sampling. Setting: Research laboratory in a tertiary rehabilitation hospital. Participants: Chronic hemiparetic stroke survivors (>6-months) who could provide consent and walk with or without assistance...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29119246/skeletal-muscle-and-performance-adaptations-to-high-intensity-training-in-elite-male-soccer-players-speed-endurance-runs-versus-small-sided-game-training
#3
Dan Fransson, Tobias Schmidt Nielsen, Karl Olsson, Tobias Christensson, Paul S Bradley, Ioannis G Fatouros, Peter Krustrup, Nikolai Baastrup Nordsborg, Magni Mohr
PURPOSE: To examine the skeletal muscle and performance responses across two different exercise training modalities which are highly applied in soccer training. METHODS: Using an RCT design, 39 well-trained male soccer players were randomized into either a speed endurance training (SET; n = 21) or a small-sided game group (SSG; n = 18). Over 4 weeks, thrice weekly, SET performed 6-10 × 30-s all-out runs with 3-min recovery, while SSG completed 2 × 7-9-min small-sided games with 2-min recovery...
November 8, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29099231/effects-of-high-intensity-intermittent-training-on-vascular-function-in-obese-preadolescent-boys
#4
Napasakorn Chuensiri, Daroonwan Suksom, Hirofumi Tanaka
BACKGROUND: High-intensity intermittent training (HIIT) may serve as an effective alternative to traditional endurance training, since HIIT has been shown to induce greater improvements in aerobic fitness and health-related markers in adult populations. Our objective was to determine whether HIIT and supramaximal high-intensity intermittent training (supra-HIIT) would improve vascular structure and function in obese preadolescent boys. METHODS: Before the baseline testing, 48 obese preadolescent boys, aged 8-12 years, were randomly assigned into control (CON; n = 16), HIIT (8 × 2 minutes at 90% peak power output, n = 16), and supra-HIIT (8 × 20 seconds at 170% peak power output, n = 16) groups...
November 3, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/29038365/muscle-ion-transporters-and-antioxidative-proteins-have-different-adaptive-potential-in-arm-than-in-leg-skeletal-muscle-with-exercise-training
#5
Magni Mohr, Tobias Schmidt Nielsen, Pál Weihe, Jákup A Thomsen, Giovanna Aquino, Peter Krustrup, Nikolai B Nordsborg
It was evaluated whether upper-body compared to lower-body musculature exhibits a different phenotype in relation to capacity for handling reactive oxygen species (ROS), H(+), La(-), Na(+), K(+) and also whether it differs in adaptive potential to exercise training. Eighty-three sedentary premenopausal women aged 45 ± 6 years (mean ± SD) were randomized into a high-intensity intermittent swimming group (HIS, n = 21), a moderate-intensity swimming group (MOS, n = 21), a soccer group (SOC, n = 21), or a control group (CON, n = 20)...
October 2017: Physiological Reports
https://www.readbyqxmd.com/read/29035607/accuracy-of-w-recovery-kinetics-in-high-performance-cyclists-modelling-intermittent-work-capacity
#6
Jason C Bartram, Dominic Thewlis, David T Martin, Kevin I Norton
PURPOSE: With knowledge of an individual's critical power (CP) and W' the SKIBA 2 model provides a framework with which to track W' balance during intermittent high intensity work bouts. There are fears the time constant controlling the recovery rate of W' (τW') may require refinement to enable effective use in an elite population. METHODS: Four elite endurance cyclists completed an array of intermittent exercise protocols to volitional exhaustion. Each protocol lasted approximately 3...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29021912/a-study-of-intensity-fatigue-and-precision-in-two-specific-interval-trainings-in-young-tennis-players-high-intensity-interval-training-versus-intermittent-interval-training
#7
David Suárez Rodríguez, Miguel Del Valle Soto
BACKGROUND: The aim of this study is to find the differences between two specific interval exercises. We begin with the hypothesis that the use of microintervals of work and rest allow for greater intensity of play and a reduction in fatigue. METHODS: Thirteen competition-level male tennis players took part in two interval training exercises comprising nine 2 min series, which consisted of hitting the ball with cross-court forehand and backhand shots, behind the service box...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/28963129/trapped-sweat-in-basketball-uniforms-and-the-effect-on-sweat-loss-estimates
#8
Lindsay B Baker, Adam J Reimel, Bridget C Sopeña, Kelly A Barnes, Ryan P Nuccio, Peter John D De Chavez, John R Stofan, James M Carter
The aims of this study were to determine: (1) trapped sweat (TS) in basketball uniforms and the effect on sweat loss (SL) estimates during a laboratory-based basketball simulation protocol; (2) the impact of exercise intensity, body mass, age, and SL on TS; and (3) TS during on-court training to assess the ecological validity of the laboratory-based results. Twenty-four recreational/competitive male basketball players (23 ± 10 years, 77.0 ± 16.7 kg) completed three randomized laboratory-based trials (Low, Moderate, and High intensity) consisting of 150-min intermittent exercise...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28920556/the-effects-of-limb-dominance-and-a-short-term-high-intensity-exercise-protocol-on-both-landings-of-the-vertical-drop-jump-implications-for-the-vertical-drop-jump-as-a-screening-tool
#9
Enda F Whyte, Patrick Kennelly, Oliver Milton, Chris Richter, Siobhán O'Connor, Kieran A Moran
The effectiveness of vertical drop jumps (VDJs) to screen for non-contact ACL injuries is unclear. This may be contributed to by discrete point analysis, which does not evaluate patterns of movement. Also, limited research exists on the second landing of VDJs, potential lower limb performance asymmetries and the effect of fatigue. Statistical parametric mapping investigated the main effects of landing, limb dominance and a high intensity, intermittent exercise protocol (HIIP) on VDJ biomechanics. Twenty-two male athletes (21...
September 18, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28894645/re-examination-of-the-contribution-of-substrates-to-energy-expenditure-during-high-intensity-intermittent-exercise-in-endurance-athletes
#10
Zübeyde Aslankeser, Şükrü Serdar Balcı
BACKGROUND: It has been believed that the contribution of fat oxidation to total energy expenditure is becoming negligible at higher exercise intensities (about 85% VO2max). The aim of the present study was to examine the changes in substrate oxidation during high-intensity interval exercise in young adult men. METHODS: A total of 18 healthy well-trained (aged 19.60 ± 0.54 years, BMI = 22.19 ± 0.64 kg/m(2), n = 10) and untrained (aged 20.25 ± 0.41 years, BMI = 22...
2017: PeerJ
https://www.readbyqxmd.com/read/28825605/effect-of-carbohydrate-caffeine-and-carbohydrate-caffeine-mouth-rinsing-on-intermittent-running-performance-in-collegiate-male-lacrosse-athletes
#11
Patrick Dolan, Kyle E Witherbee, Kimi M Peterson, Chad M Kerksick
Dolan, P, Witherbee, KE, Peterson, KM, and Kerksick, CM. Effect of carbohydrate, caffeine, and carbohydrate + caffeine mouth rinsing on intermittent running performance in collegiate male lacrosse athletes. J Strength Cond Res 31(9): 2473-2479, 2017-Recently, an interest has developed in the potential to rinse the oral cavity with key nutrients to impact various types of exercise and presumably sporting performance. Although multiple studies examining carbohydrate mouth rinsing have been completed, conflicting evidence surrounding caffeine mouth rinsing persists, and no research has explored its ability to impact high-intensity, intermittent running performance...
September 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28797831/validity-of-the-actigraph-gt3x-and-bodymedia-sensewear-armband-to-estimate-energy-expenditure-during-physical-activity-and-sport
#12
Paul B Gastin, Cassy Cayzer, Dan Dwyer, Sam Robertson
OBJECTIVES: The purpose of this study was to assess the validity of the ActiGraph GT3X+ (GT3X+) and the BodyMedia SenseWear Armband (SWA) to estimate energy expenditure (EE) during physical activity and field sport movements. DESIGN: Criterion validity. METHODS: Twenty-six active adults completed a single 90min session involving alternating intervals of exercise (5min) and recovery (10min). Exercise involved walking (4km/h), jogging (8km/h), running (12km/h) or a sport-simulated circuit (three intervals)...
July 31, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28783846/cardiorespiratory-responses-to-continuous-and-intermittent-exercises-in-children
#13
Georges Baquet, François-Xavier Gamelin, Julien Aucouturier, Serge Berthoin
The aim of the study was to characterize aerobic responses to high intensity intermittent (HIIE) and continuous (CE) exercises in prepubertal children. 26 children aged 8 to 11-year-old took part in a preliminary session to determine peakVO2 and Maximal Aerobic Velocity (MAV). In 5 subsequent experimental visits, the participants completed 2 CE and 3 HIIE sessions in a randomized order. HIIE consisted of short intermittent 10-s and 20-s running bouts at 100 to 130% MAV, interspersed with recovery periods of equal duration (S-HIIE1 and S-HIIE2 respectively) and 5-s of sprinting and jumping at maximal intensity with 15-s recovery periods (S-HIIE3)...
September 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28776675/dissociating-external-power-from-intramuscular-exercise-intensity-during-intermittent-bilateral-knee-extension-in-humans
#14
Matthew J Davies, Alan P Benson, Daniel T Cannon, Simon Marwood, Graham J Kemp, Harry B Rossiter, Carrie Ferguson
KEY POINTS: Continuous high-intensity constant-power exercise is unsustainable, with maximal oxygen uptake (V̇O2 max ) and the limit of tolerance attained after only a few minutes. Performing the same power intermittently reduces the O2 cost of exercise and increases tolerance. The extent to which this dissociation is reflected in the intramuscular bioenergetics is unknown. We used pulmonary gas exchange and (31) P magnetic resonance spectroscopy to measure whole-body V̇O2, quadriceps phosphate metabolism and pH during continuous and intermittent exercise of different work:recovery durations...
November 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28763620/acute-effects-of-exercise-intensity-on-subsequent-substrate-utilisation-appetite-and-energy-balance-in-men-and-women
#15
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 effects. One hour after a standardised breakfast, 40 (19 female), healthy participants (BMI 23.6 ± 3.6 kg·m(-2), V̇O2peak 34...
August 1, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28763443/intermittent-hypoxic-training-improves-anaerobic-performance-in-competitive-swimmers-when-implemented-into-a-direct-competition-mesocycle
#16
RANDOMIZED CONTROLLED TRIAL
Miłosz Czuba, Robert Wilk, Jakub Karpiński, Małgorzata Chalimoniuk, Adam Zajac, Józef Langfort
The main objective of this research was to evaluate the efficacy of intermittent hypoxic training (IHT) on anaerobic and aerobic capacity and swimming performance in well-trained swimmers. Sixteen male swimmers were randomly divided into a hypoxia (H) group (n = 8), which trained in a normobaric hypoxia environment, and a control (C) group (n = 8), which exercised under normoxic conditions. However, one participant left the study without explanation. During the experiment group H trained on land twice per week in simulated hypoxia (FiO2 = 15...
2017: PloS One
https://www.readbyqxmd.com/read/28746245/the-physical-and-physiological-demands-of-elite-international-female-field-hockey-players-during-competitive-match-play
#17
Aideen McGuinness, Shane Malone, George Petrakos, Kieran Collins
The aim of the current investigation was to quantify the physical and physiological demands of elite international female field hockey match-play across halves of play. Thirty-eight participants (24 ± 5 years; 173 ± 5 cm; 72 ± 5 kg) took part in nineteen competitive matches during the 2014 - 2015 season. Participants were monitored with GPS technology and heart rate monitors. Players were categorized based on three different playing positions. Activity was categorized into total (m), high-speed running distance (m; >16 km·h) and relative distance (m·min) due to the use of rolling substitutions...
July 24, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28723843/no-superior-adaptations-to-carbohydrate-periodization-in-elite-endurance-athletes
#18
Kasper Degn Gejl, Line Bork Thams, Mette Hansen, Torben Rokkedal-Lausch, Peter Plomgaard, Lars Nybo, Filip J Larsen, Daniele A Cardinale, Kurt Jensen, Hans-Christer Holmberg, Kristian Vissing, Niels Ørtenblad
PURPOSE: The present study investigated the effects of periodic carbohydrate (CHO) restriction on endurance performance and metabolic markers in elite endurance athletes. METHODS: Twenty-six male elite endurance athletes (maximal oxygen consumption (V˙O2max), 65.0 mL O2·kg·min) completed 4 wk of regular endurance training while being matched and randomized into two groups training with (low) or without (high) CHO manipulation 3 d·wk. The CHO manipulation days consisted of a 1-h high-intensity bike session in the morning, recovery for 7 h while consuming isocaloric diets containing either high CHO (414 ± 2...
December 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28705431/-effect-of-intermittent-variable-intensity-exercise-on-qt-variation-and-risk-of-sudden-cardiac-death-among-cameroonian-school-adolescents
#19
E C Bika Lele, M N Pepouomi, A Temfemo, J Mekoulou, P Assomo Ndemba, S H Mandengue
INTRODUCTION: Several cases of sudden deaths are observed among students practicing sport and physical activity (SPA). Just few studies have been carried out on the variation of the QT (interval) and risk of sudden death during sporting exercises. AIM: To determine the effect of variable intermittent stress intensity on the variation of QT and the risk of sudden cardiac death. PATIENTS AND METHODS: Form 4, lower sixth and upper sixth students were recruited from a high school in Douala (Cameroon)...
July 10, 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28662531/effects-of-in-season-explosive-strength-training-on-maximal-leg-strength-jumping-sprinting-and%C3%A2-intermittent-aerobic-performance-in-male-handball-athletes
#20
Souhail Hermassi, Mohamed Souhaiel Chelly, Georg Fieseler, Thomas Bartels, Stephan Schulze, Karl-Stefan Delank, Roy J Shephard, René Schwesig
Background Team handball is an intense ball sport with specific requirements on technical skills, tactical understanding, and physical performance. The ability of handball players to develop explosive efforts (e. g. sprinting, jumping, changing direction) is crucial to success. Objective The purpose of this pilot study was to examine the effects of an in-season high-intensity strength training program on the physical performance of elite handball players. Materials and methods Twenty-two handball players (a single national-level Tunisian team) were randomly assigned to a control group (CG; n = 10) or a training group (TG; n = 12)...
September 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
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