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https://www.readbyqxmd.com/read/27931052/a-6-week-sprint-interval-training-program-changes-anaerobic-power-quadriceps-moment-and-subcutaneous-tissue-thickness
#1
S Han, H Lee, H Kim, D Kim, C Choi, J Park
We examined the effects of a 6-week 40-m one-way sprint interval training program (based on sprint time). 13 untrained healthy male collegiate students performed six 40-m sprints with a 60-s resting interval between sprints during the first week, and one sprint was added each week until the sixth week. If the 40-m sprint time exceeded 110% of the fastest baseline 40-m sprint time, the run was repeated. Repeated-sprint cycling test (every 3 weeks), quadriceps moment (every 2 weeks), and abdominal and thigh subcutaneous tissue thickness (every 2 weeks) were measured...
December 8, 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27877070/aerobic-power-and-lean-mass-are-indicators-of-competitive-sprint-performance-among-elite-female-cross-country-skiers
#2
Tomas Carlsson, Michail Tonkonogi, Magnus Carlsson
The purpose of this study was to establish the optimal allometric models to predict International Ski Federation's ski-ranking points for sprint competitions (FISsprint) among elite female cross-country skiers based on maximal oxygen uptake ( [Formula: see text]) and lean mass (LM). Ten elite female cross-country skiers (age: 24.5±2.8 years [mean ± SD]) completed a treadmill roller-skiing test to determine [Formula: see text] (ie, aerobic power) using the diagonal stride technique, whereas LM (ie, a surrogate indicator of anaerobic capacity) was determined by dual-emission X-ray anthropometry...
2016: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/27871205/the-effects-of-two-different-swimming-training-periodization-on-physiological-parameters-at-various-exercise-intensities
#3
Vicente Javier Clemente-Suárez, Athanasios Dalamitros, João Ribeiro, Ana Sousa, Ricardo J Fernandes, J Paulo Vilas-Boas
This study analysed the effects of two different periodization strategies on physiological parameters at various exercise intensities in competitive swimmers. Seventeen athletes of both sexes were divided to two groups, the traditional periodization (TPG, n = 7) and the reverse periodization group (RPG, n = 10). Each group followed a 10-week training period based on the two different periodization strategies. Before and after training, swimming velocity (SV), energy expenditure (EE), energy cost (EC) and percentage of aerobic (%Aer) and anaerobic (%An) energy contribution to the swimming intensities corresponding to the aerobic threshold (AerT), the anaerobic threshold (AnT) and the velocity at maximal oxygen uptake (vVO2max) were measured...
November 21, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27843418/effects-of-acute-carbohydrate-ingestion-on-anaerobic-exercise-performance
#4
Ben M Krings, Jaden A Rountree, Matthew J McAllister, Patrick M Cummings, Timothy J Peterson, Brent J Fountain, JohnEric W Smith
BACKGROUND: Carbohydrate (CHO) supplementation during endurance exercises has been shown to increase performance, but there is limited research with CHO supplementation during strength and conditioning exercises. Therefore, the purpose of this study was to examine the effects of various levels of CHO ingestion during acute testing sessions requiring participants to complete a strength and conditioning program designed for collegiate athletes. METHODS: Participants (n = 7) performed a series of exercises while ingesting an amino-acid electrolyte control (CON) or CON plus varying levels of CHO...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27833721/combined-effects-of-lignosus-rhinocerotis-supplementation-and-resistance-training-on-isokinetic-muscular-strength-and-power-anaerobic-and-aerobic-fitness-level-and-immune-parameters-in-young-males
#5
Chee Keong Chen, Nor Faeiza Hamdan, Foong Kiew Ooi, Wan Zuraida Wan Abd Hamid
BACKGROUND: This study investigated the effects of Lignosus rhinocerotis (LRS) supplementation and resistance training (RT) on isokinetic muscular strength and power, anaerobic and aerobic fitness, and immune parameters in young males. METHODS: Participants were randomly assigned to four groups: Control (C), LRS, RT, and combined RT-LRS (RT-LRS). Participants in the LRS and RT-LRS groups consumed 500 mg of LRS daily for 8 weeks. RT was conducted 3 times/week for 8 weeks for participants in the RT and RT-LRS groups...
2016: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27832671/exercise-based-cardiac-rehabilitation-in-coronary-disease-training-impulse-or-modalities
#6
P-M Leprêtre, M Ghannem, M Bulvestre, S Ahmaidi, S Delanaud, T Weissland, P Lopes
To compare the effects of 2 short programs with similar training load (TL), based on combined aerobic - resistance training (CT) or aerobic training (AT) on cardiorespiratory responses, 32 patients with coronary heart disease (CHD: 63.8±8.0y, 1.73±0.06 m, 84.8±15.9 kg, Left Ventricular Ejection Fraction: 0.53±0.8) performed 4 weeks of exercise rehabilitation based on CT (n=16) or AT (n=16). Maximal tolerated power (MTP), peak values of oxygen uptake (VO2peak) and heart rate (HRpeak), anaerobic threshold (VT1) were determined during an incremental cycling exercise test before and after training periods...
November 10, 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27832062/cardiovascular-fitness-and-energy-expenditure-response-during-a-combined-aerobic-and-circuit-weight-training-protocol
#7
Pedro J Benito, María Alvarez-Sánchez, Víctor Díaz, Esther Morencos, Ana B Peinado, Rocio Cupeiro, Nicola Maffulli
OBJECTIVES: The present study describes the oxygen uptake and total energy expenditure (including both aerobic and anaerobic contribution) response during three different circuit weight training (CWT) protocols of equivalent duration composed of free weight exercises, machine exercises, and a combination of free weight exercises intercalating aerobic exercise. DESIGN: Controlled, randomized crossover designs. METHODS: Subjects completed in a randomized order three circuit weight training protocols of the same duration (3 sets of 8 exercises, 45min 15s) and intensity (70% of 15 repetitions maximum)...
2016: PloS One
https://www.readbyqxmd.com/read/27826256/commentary-the-effects-of-high-intensity-interval-training-vs-steady-state-training-on-aerobic-and-anaerobic-capacity
#8
COMMENT
Victor S Coswig, Paulo Gentil, João P A Naves, Ricardo B Viana, Charles Bartel, Fabrício B Del Vecchio
No abstract text is available yet for this article.
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27806005/effect-of-1-rm-80-rm-and-50-rm-strength-exercise-in-trained-individuals-on-variations-in-plasma-redox-biomarkers
#9
Tatiana G Polotow, Tácito P Souza-Junior, Ricardo C Sampaio, Alexandre R Okuyama, Douglas Ganini, Cristina V Vardaris, Ragami C Alves, Steven R McAnulty, Marcelo P Barros
For decades, scientists have examined the participation of oxygen/nitrogen species (ROS/RNS) in anaerobic-like exercises, especially weight lifting and resistance exercises. The balance between the production of oxyradicals and antioxidant responses during anaerobic-like exercises is essential to assure adaptation to the physiological benefits of strength training and to prevent chronic harmful effects. The aim of this study is to examine the hypothesis that different weight loads (1-RM, 80%RM, and 50%RM) lifted until exhaustion could impose distinct oxidative insults and elicit diverse antioxidant responses in plasma of young trained subjects...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27792217/recreational-football-training-improved-health-related-physical-fitness-in-9-to-10-year-old-boys
#10
Jin Wang, Liquan Cao, Pengfei Xie, Jianxiong Wang
BACKGROUND: Recreational football is an aerobic/anaerobic intermittent sport with altering exercise periods at high or low intensity. Various football drills and body movement in this exercise may easily attract children to take part in. The purpose of this study was to test the hypothesis that recreational football training would improve the health-related physical fitness in healthy 9- to 10-year-old boys, compared to the outcome from non-exercise boys. METHODS: Forty boys were randomly allocated into the football and control groups...
October 28, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27777059/metabolic-mechanisms-of-vocal-fatigue
#11
Chayadevie Nanjundeswaran, Jessie VanSwearingen, Katherine Verdolini Abbott
OBJECTIVE: This study aimed to identify potential metabolic mechanisms including (1) neuromuscular inefficiency, (2) cardiovascular recovery deficits, or (3) both, in individuals with complaints of vocal fatigue. STUDY DESIGN: Within- and between-subjects group design was used in this study. METHODS: Three groups of women participated in the study, including (1) individuals with complaints of vocal fatigue; (2) vocally healthy sedentary individuals; and (3) vocally healthy, cardiovascularly conditioned individuals...
October 21, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27776306/compact-secondary-treatment-train-combining-a-lab-scale-moving-bed-biofilm-reactor-and-enhanced-flotation-processes
#12
Catherine Brosseau, Bettina Émile, Marc-André Labelle, Édith Laflamme, Peter L Dold, Yves Comeau
High-rate wastewater processes are receiving a renewed interest to obtain energy positive/efficient water resource recovery facilities. An innovative treatment train combining a high-rate moving bed biofilm reactor (HR-MBBR) with an enhanced flotation process was studied. The two objectives of this work were 1) to maximize the conversion of soluble organics to particulate matter in an HR-MBBR and 2) to maximize the particulate matter recovery from the HR-MBBR effluent by green chemicals to enhance biogas production by anaerobic digestion...
October 8, 2016: Water Research
https://www.readbyqxmd.com/read/27766157/the-physiological-musculoskeletal-and-psychological-effects-of-stand-up-paddle-boarding
#13
Ben Schram, Wayne Hing, Mike Climstein
BACKGROUND: Stand up paddle boarding (SUP) is a rapidly growing sport and recreational activity where anecdotal evidence exists for its proposed health, fitness and injury rehabilitation benefits. While limited scientific evidence exists to substantiate these claims, previous studies have shown that high levels of fitness, strength and balance exists amongst participants of this sport. The purpose of this study was to conduct a training intervention on a group of previously untrained individuals to ascertain the potential of SUP on various health parameters...
2016: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27763581/match-analysis-of-an-elite-beach-soccer-team
#14
Rosario Scarfone, Antonio Ammendolia
BACKGROUND: The aim of this study was to investigate the physiological demands and technical-tactical performances of field players in Italian elite beach soccer team. METHODS: Three official matches of the Italian First Division beach soccer tournament were analyzed to evaluate the heart rate (HR) and time-motion analysis considering: standing, walking, jogging, running and sprinting, and technical-tactical aspects. Repeated-measures ANOVAs were used to determine the effects of time on the physiological measures and time motion analysis...
October 20, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27753997/ed-07-2-to-lift-walk-or-run-what-is-the-optimal-mode-of-exercise-to-reduce-hypertension-and-prevent-cardiovascular-disease
#15
Peter Kokkinos
A plethora of evidence exists supporting that structured aerobic exercise or activities that increase cardiorespiratory fitness (CRF) lower resting blood pressure (BP) in patients with hypertension (HTN). Relatively few studies have assessed the effects of anaerobic or resistance exercise on BP. Thus, its role in managing HTN is not defined. Also, possible risks related with exercise in hypertensive patients have not been adequately addressed.In addition to lowering BP, CRF attenuates the incidence of HTN. A substantial part of the age-related progression to HTN is not an inevitable outcome of aging as once thought, but a consequence of lifestyle characterized by high-fat/salt diets and physical inactivity...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27676275/hormonal-cortical-gonadotropic-axis-and-physical-changes-with-two-years-intense-exercise-training-in-elite-young-soccer-players
#16
Mohamed Ali Hammami, Abderraouf Ben Abderrahman, Anthony C Hackney, Wiem Kebsi, Adam L Owen, Amar Nebigh, Ghazi Racil, Zouhair Tabka, Hassane Zouhal
The aim of this study was to investigate the effects of two soccer-training seasons on physical fitness and hormone concentrations in elite youth soccer players. Twenty male elite soccer players (SP, age 14.5 ± 0.4 years) and 20 male control subjects (CS, age 14.3 ± 0.3years) participated to the study. Anthropometric measurements, aerobic (Yo-Yo Intermittent Recovery Test Level 1 (YYIRT1)) and anaerobic soccer relevant performances (jump and sprint tests), blood testosterone (T), cortisol (C),sex hormone binding globulin (SHBG) and T/C ratio were assessed 5 times (from T0 to T4) during two competitive seasons...
September 23, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27676142/post-exercise-neurovascular-control-in-chronic-heart-failure-patients
#17
T S Nobre, R V Groehs, L F Azevedo, L M Antunes-Correa, D G Martinez, M J N N Alves, C E Negrao
It remains unknown whether or not a reduction in muscle sympathetic nerve activity in heart failure patients is associated over time with the effects of long- or short-term repeated exercise. 10 chronic heart failure patients, age 49±3 years old, functional class I-III NYHA, ejection fraction <40% were randomly submitted to either an acute bout of moderate continuous exercise OR high-intensity interval exercise. Muscle sympathetic nerve activity (microneurography) and forearm blood flow (venous occlusion plethysmography) were evaluated pre- and post-exercise sessions...
December 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27650605/effect-of-protein-quality-on-recovery-after-intense-resistance-training
#18
E Rindom, M H Nielsen, K Kececi, M E Jensen, K Vissing, J Farup
PURPOSE: The present study investigated the effects of high- versus low-quality protein supplementation on the regain of exercise performance during recovery from a period of high-intensity resistance training. METHODS: In a diet-controlled crossover study, 12 resistance-trained participants performed two identical training periods, with each training period including four sessions of high-intensity resistance exercise during 5 days, while receiving either high- or low-quality protein...
September 20, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27642908/ed-07-2-to-lift-walk-or-run-what-is-the-optimal-mode-of-exercise-to-reduce-hypertension-and-prevent-cardiovascular-disease
#19
Peter Kokkinos
A plethora of evidence exists supporting that structured aerobic exercise or activities that increase cardiorespiratory fitness (CRF) lower resting blood pressure (BP) in patients with hypertension (HTN). Relatively few studies have assessed the effects of anaerobic or resistance exercise on BP. Thus, its role in managing HTN is not defined. Also, possible risks related with exercise in hypertensive patients have not been adequately addressed.In addition to lowering BP, CRF attenuates the incidence of HTN. A substantial part of the age-related progression to HTN is not an inevitable outcome of aging as once thought, but a consequence of lifestyle characterized by high-fat/salt diets and physical inactivity...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27625748/neuromuscular-and-blood-lactate-response-after-a-motocross-training-session-in-amateur-riders
#20
Vinicius Radenzev Simões, Alex Harley Crisp, Rozangela Verlengia, Idico Luiz Pellegrinotti
BACKGROUND: Motocross is one of the most popular motorized off-road sports, characterized by riding on irregular natural terrain of hard earth and/or sand with various obstacles throughout the course. OBJECTIVES: This study evaluated the influence of a motocross training session on neuromuscular response and blood lactate in amateur riders. PATIENTS AND METHODS: Nine motocross riders (22.7 ± 2.8 years) participating in amateur competitions at the state level conducted a training session of 20 minutes duration at a motocross track (1...
June 2016: Asian Journal of Sports Medicine
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