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Aerobic threshold

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https://www.readbyqxmd.com/read/29349712/highly-favorable-physiological-responses-to-concurrent-resistance-and-high-intensity-interval-training-during-chemotherapy-the-optitrain-breast-cancer-trial
#1
Sara Mijwel, Malin Backman, Kate A Bolam, Emil Olofsson, Jessica Norrbom, Jonas Bergh, Carl Johan Sundberg, Yvonne Wengström, Helene Rundqvist
BACKGROUND: Advanced therapeutic strategies are often accompanied by significant adverse effects, which warrant equally progressive countermeasures. Physical exercise has proven an effective intervention to improve physical function and reduce fatigue in patients undergoing chemotherapy. Effects of high-intensity interval training (HIIT) in this population are not well established although HIIT has proven effective in other clinical populations. The aim of the OptiTrain trial was to examine the effects of concurrent resistance and high-intensity interval training (RT-HIIT) or concurrent moderate-intensity aerobic and high-intensity interval training (AT-HIIT), to usual care (UC) on pain sensitivity and physiological outcomes in patients with breast cancer during chemotherapy...
January 18, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29340005/comparison-of-aerobic-performance-testing-protocols-in-elite-male-wheelchair-basketball-players
#2
Bartosz Molik, Andrzej Kosmol, Natalia Morgulec-Adamowicz, Judit Lencse-Mucha, Anna Mróz, Karol Gryko, Jolanta Marszałek
In wheelchair sports, aerobic performance is commonly assessed with the use of an arm crank ergometer (ACE), a wheelchair ergometer (WCE) or a wheelchair treadmill (WCT). There are different protocols to identify peak oxygen uptake in wheelchair sports; however, only a few protocols have been applied to evaluate these conditions in wheelchair basketball players. The purpose of this study was to compare physiological responses during maximal exercise testing with the use of ACE and WCT in wheelchair basketball players...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29334005/physiological-correlations-with-short-medium-and-long-cycling-time-trial-performance
#3
Fernando K Borszcz, Artur F Tramontin, Kristopher M de Souza, Lorival J Carminatti, Vitor P Costa
PURPOSE: Several studies have demonstrated that physiological variables predict cycling endurance performance. However, it is still unclear whether the predictors will change over different performance durations. The aim of this study was to assess the correlations between physiological variables and cycling time trials with different durations. METHODS: Twenty trained male cyclists (maximal oxygen uptake [VO2max] = 60.5 ± 5.6 mL/kg/min) performed 4 separate experimental trials during a 2-week period...
January 15, 2018: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29332919/high-intensity-interval-training-for-severe-left-ventricular-dysfunction-treated-with-left-ventricular-assist-device
#4
Yusuke Ugata, Hiroshi Wada, Kenichi Sakakura, Tatsuro Ibe, Miyuki Ito, Nahoko Ikeda, Hideo Fujita, Shin-Ichi Momomura
Aerobic training based on anaerobic threshold (AT) is well-known to improve cardiac function, exercise capacity, and long-term outcomes of patients with heart failure. Recent reports suggested that high-intensity interval training (HIIT) for patients with cardiovascular disease may improve cardiopulmonary exercise capacity. We present a 61-year-old male patient of severe left ventricular dysfunction with left ventricular assisted device (LVAD). Following HIIT for 8 weeks, exercise capacity and muscle strength have improved without worsening left ventricular function...
January 15, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29326904/effects-of-habitual-smoking-on-cardiopulmonary-function-in-taekwondo-athletes
#5
Dong-Jin Jang, Hee-Cheol Kim, Jae-Kyung Kim, Sun-Young Jung, Dae-Young Kim
This study aimed to verify habitual smoking effects on cardiopulmonary function in taekwondo athletes. Subjects were university taekwondo athletes aged 20-24 years in nonsmoker (n= 9) and smoker (n= 6) groups. Subjects underwent an exercise examination for their ventilation threshold, minute ventilation, oxygen uptake, maximum volume of minute oxygen consumption, heart rate, and oxygen pulse during exercise and 1, 3, and 5 min after maximum exercise. The time of reaching the ventilation threshold was significantly higher in nonsmokers than in smokers...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29325367/-effects-of-aerobic-exercise-combined-with-resistance-training-on-the-cardiorespiratory-fitness-and-exercise-capacity-of-patients-with-stable-coronary-artery-disease
#6
S X Liu, Y Y Chen, K L Xie, W L Zhang
Objective: To observe the effects of aerobic exercise combined with resistance training on the cardiorespiratory fitness and exercise capacity of patients with stable coronary artery disease (CAD) . Methods: From June 2014 to December 2015, 73 patients with stable CAD in our department were recruited and randomly assigned to two groups: the control group (n=38) and the exercise group (n=35) . Patients in both groups received conventional medical treatment for CAD and related cardiac health education. While for patients in exercise group, a twelve-week aerobic exercise combined with resistance training program were applied on top of conventional treatment and health education...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29290378/kinesiophobia-is-associated-with-pain-intensity-but-not-pain-sensitivity-before-and-after-exercise-an-explorative-analysis
#7
H B Vaegter, A B Madsen, G Handberg, T Graven-Nielsen
OBJECTIVE: To compare clinical pain intensity, exercise performance, pain sensitivity and the effect of aerobic and isometric exercise on local and remote pressure pain thresholds (PPTs) in patients with chronic musculoskeletal pain with high and low levels of kinesiophobia. DESIGN: An experimental pre-post within-subject study. SETTING: An exercise laboratory in a multidisciplinary pain clinic. PARTICIPANTS: Fifty-four patients with chronic musculoskeletal pain...
October 28, 2017: Physiotherapy
https://www.readbyqxmd.com/read/29289432/emission-potential-of-volatile-sulfur-compounds-vscs-and-ammonia-from-sludge-compost-with-different-bio-stability-under-various-oxygen-levels
#8
Pinjing He, Shunyan Wei, Liming Shao, Fan Lü
Volatile sulfur compounds (VSCs) and ammonia from biowaste-derived residues is influenced by both the degree of bio-stability and atmosphere of oxygen level (i.e., either anaerobic, aerobic or anoxic conditions). By means of odor emission potential (OEP) test, present study directly examined how these two factors jointly affected the emissions of different odorous compounds from sludge compost. Results reveal that (1) the cumulative amount of ammonia and VSCs ranged from 0.08 to 0.38 mg/g-DM and 1.92 to 6...
December 27, 2017: Waste Management
https://www.readbyqxmd.com/read/29284165/lactate-threshold-as-a-measure-of-aerobic-metabolism-in-resistance-exercise
#9
Raúl Domínguez, José Luis Maté-Muñoz, Noemí Serra-Paya, Manuel Vicente Garnacho-Castaño
In resistance training, load intensity is usually calculated as the percentage of a maximum repetition (1RM) or maximum number of possible repetitions (% of 1RM). Some studies have proposed a lactate threshold (LT) intensity as an optimal approach for concurrent training of cardiorespiratory endurance and muscle strength, as well as an alternative in resistance training. The objective of the present study was to analyze the results obtained in research evaluating the use of LT in resistance training. A keyword and search tree strategy identified 14 relevant articles in the Dialnet, Elsevier, Medline, Pubmed, Scopus and Web of Science databases...
December 28, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29280079/photobiomodulation-increases-mitochondrial-citrate-synthase-activity-in-rats-submitted-to-aerobic-training
#10
Wouber Hérickson de Brito Vieira, Cleber Ferraresi, Maria Luiza Barcellos Schwantes, Sérgio Eduardo de Andrade Perez, Vilmar Baldissera, Mikhail Santos Cerqueira, Nivaldo Antonio Parizotto
This study investigated the effects of photobiomodulation by low-laser laser therapy (LLLT) on the activities of citrate synthase (CS) and lactate dehydrogenase (LDH) and the anaerobic threshold (AT) in rats submitted to treadmill exercise. Fifty-four rats were allocated into four groups: rest control (RCG), rest laser (RLG), exercise control (ECG), and exercise laser (ELG). The infrared LLLT was applied daily on the quadriceps, gluteus maximum, soleus, and tibialis anterior muscles. Muscle samples (soleus, tibialis anterior, and cardiac muscles) were removed 48 h after the last exercise session for spectrophotometric analysis of the CS and LDH...
December 26, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29247368/n-acyl-homoserine-lactones-and-autoinducer-2-mediated-quorum-sensing-during-wastewater-treatment
#11
REVIEW
Han Chen, Ang Li, Di Cui, Qiao Wang, Dan Wu, Chongwei Cui, Fang Ma
Bacteria can coordinate and synchronize activities through a cell density-dependent regulatory mechanism called quorum sensing (QS). Bacteria can measure their population by the synthesis, secretion, and perception of QS signal molecules to regulate specific gene expression when the population reaches a critical threshold. QS participates in various microbial processes such as marine organism bioluminescence, bacterial biofilm formation, and virulence factor expression. The use of QS systems mediated by N-acyl-homoserine lactones and autoinducer-2 has been recently recognized as a promising regulatory approach in environmental science and technology that can intrinsically promote the profound comprehension of wastewater treatment from a microbiology perspective...
December 16, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29239986/practical-model-of-low-volume-paddling-based-sprint-interval-training-improves-aerobic-and-anaerobic-performances-in-professional-female-canoe-polo-athletes
#12
Mohsen Sheykhlouvand, Erfan Khalili, Mohammadali Gharaat, Hamid Arazi, Mousa Khalafi, Bahman Tarverdizadeh
Brief, intense exercise training employing running and cycling as exercise interventions may induce aerobic and anaerobic adaptations in athletes from wide range of sports. However, this has not been studied extensively for those sports in which the upper-body is predominantly involved. Our purpose was to examine the effects of kayak paddling-based sprint interval training (SIT) on cardiorespiratory fitness and anaerobic performance. 16 professional female canoe polo athletes (age = 27.6 ± 1.9 years; height = 165...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239716/pseudomonas-fluvialis-sp-nov-a-novel-member-of-the-genus-pseudomonas-isolated-from-the-river-ganges-india
#13
Sarabjeet Kour Sudan, Deepika Pal, Bhawana Bisht, Narender Kumar, Vasvi Chaudhry, Prabhu Patil, Girish Sahni, Shanmugam Mayilraj, Srinivasan Krishnamurthi
A bacterial strain, designated ASS-1T, was isolated and identified from a sediment sample of the river Ganges, Allahabad, India. The strain was Gram-stain-negative, formed straw-yellow pigmented colonies, was strictly aerobic, motile with a single polar flagellum, and positive for oxidase and catalase. The major fatty acids were C16 : 1ω7c/ 16 : 1 C16 : 1ω6c, C18 : 1ω7c and C16 : 0. Sequence analysis based on the 16S rRNA gene revealed that strain ASS-1T showed high similarity to Pseudomonas guguanensis CC-G9AT (98...
December 14, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29236871/evaluation-of-anaerobic-threshold-in-non-pregnant-and-pregnant-rats
#14
Aline Oliveira Netto, Nathália C D Macedo, Franciane Q Gallego, Yuri K Sinzato, Gustavo T Volpato, Débora C Damasceno
Several studies present different methodologies and results about intensity exercise, and many of them are performed in male rats. However, the impact of different type, intensity, frequency and duration of exercise on female rats needs more investigation. From the analysis of blood lactate concentration during lactate minimum test (LacMin) in the swimming exercise, the anaerobic threshold (AT) was identified, which parameter is defined as the transition point between aerobic and anaerobic metabolism. LacMin test is considered a good indicator of aerobic conditioning and has been used in prescription of training in different exercise modalities...
October 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29225441/a-racial-comparison-of-differences-between-self-reported-and-objectively-measured-physical-activity-among-us-adults-with-diabetes
#15
Shahrzad Bazargan-Hejazi, Jeffrey S Arroyo, Stanley Hsia, Neda Rouhi Brojeni, Deyu Pan
Objective: To investigate: 1) the racial/ethnic disparities in meeting the recommended physical activity as measured by subjective vs objective measures in a national sample of individuals with type 2 diabetes mellitus; and 2) the racial/ethnic differences with respect to the magnitude of the discrepancy between self-reported and objectively measured moderate-to-vigorous intensity aerobic physical activity (MVPA). Methods: We used data from the National Health and Nutrition Examination Survey (NHANES) 2003-06 to calculate and compare the percentage of individuals with diabetes who achieved the recommended levels of physical activity as measured by subjective self-report (500 metabolic equivalents (MET)-minutes/week) and objective accelerometer measurement (150 minutes per week of MVPA) across racial/ethnic groups...
2017: Ethnicity & Disease
https://www.readbyqxmd.com/read/29214926/aerobic-training-performed-at-ventilatory-threshold-improves-liver-enzymes-and-lipid-profile-related-to-non-alcoholic-fatty-liver-disease-in-adolescents-with-obesity
#16
Camila Tc de Lira, Marcos Am Dos Santos, Priscyla P Gomes, Yara L Fidelix, Ana Co Dos Santos, Thiago Rs Tenório, Mara C Lofrano-Prado, Wagner L do Prado
BACKGROUND: Despite the positive effects of high-intensity training on weight management and health-related outcomes, it is postulated that high-intensity training may also induce oxidative stress, increasing hepatic damage. AIM: The aim of this study was to compare the effects of low versus high-intensity training on biomarkers related to non-alcoholic fatty liver disease (NAFLD) in adolescents with obesity. METHODS: For this study 107 adolescents (15 ± 1 years) with obesity (BMI = 34...
December 2017: Nutrition and Health
https://www.readbyqxmd.com/read/29206781/perceptual-responses-to-high-and-moderate-intensity-interval-exercise-in-adolescents
#17
Adam A Malik, Craig A Williams, Kathryn L Weston, Alan R Barker
PURPOSE: High-intensity continuous exercise is proposed to evoke unpleasant sensations as predicted by the dual mode theory (DMT), and may negatively impact on future exercise adherence. Previous studies support unpleasant sensations in affective responses during continuous high-intensity exercise, but the affect experience during high-intensity interval exercise (HIIE) involving brief bursts of high-intensity exercise separated by low-intensity activity is poorly understood in adolescents...
December 2, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29205132/stakelama-algicida-sp-nov-novel-algicidal-species-of-the-family-sphingomonadaceae-isolated-from-seawater
#18
Sylvia Kristyanto, Dhiraj Kumar Chaudhary, Jaisoo Kim
We conducted a taxonomic study of two algicidal bacteria, designated strains Yeonmyeong 1-13T and Yeonmyeong 1-11, isolated from seawater off Geoje Island in the South Sea, Republic of Korea. The two novel strains were yellow-pigmented, halotolerant, Gram-stain-negative, strictly aerobic, non-spore-forming, rod-shaped bacteria. Both strains were able to grow at 5-39 °C, pH 5.0-10.0 and 0-11 % (w/v) NaCl concentration. Based on the 16S rRNA gene sequence analysis, strains Yeonmyeong 1-13T and Yeonmyeong 1-11 belonged to the genus Stakelama and are closely related to Stakelama pacifica JLT832T (98...
December 5, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29203287/effects-of-endurance-training-on-serum-lipids
#19
REVIEW
Kati Fikenzer, Sven Fikenzer, Ulrich Laufs, Christian Werner
BACKGROUND AND AIMS: Physical activity is recommended as part of the lifestyle modification for the treatment of hyperlipidemia, however, the literature reports heterogeneous quantitative effects of exercise on serum lipids. We therefore reviewed the effects of aerobic exercise on serum lipids with special focus on the training effectiveness. METHODS: Data regarding effects of endurance training (ET) on total Cholesterol (TC), LDL-Cholesterol (LDL-C), HDL-Cholesterol (HDL-C) and triglycerides (TG) were evaluated in a selective literature search...
December 1, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/29202557/non-alcoholic-fatty-liver-disease-and-lifestyle-modifications-focusing-on-physical-activity
#20
Min-Sun Kwak, Donghee Kim
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, and the prevalence of non-alcoholic steatohepatitis (NASH) with fibrosis is increasing as the population with NAFLD ages. To date, lifestyle modifications including weight loss, increased physical activity, and dietary changes remain the treatment of choice for NAFLD because there are no approved effective pharmacologic agents. Increased physical activity has therapeutic effects on NAFLD by reducing hepatic fat independent of weight reduction...
December 6, 2017: Korean Journal of Internal Medicine
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