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Fasted resistance training

Vanessa Di Cataldo, Alain Géloën, Jean-Baptiste Langlois, Fabien Chauveau, Benoît Thézé, Violaine Hubert, Marlène Wiart, Erica N Chirico, Jennifer Rieusset, Hubert Vidal, Vincent Pialoux, Emmanuelle Canet-Soulas
Aim: Advanced atherosclerosis increases inflammation and stroke risk in the cerebral vasculature. Exercise is known to improve cardio-metabolic profiles when associated with a caloric restriction, but it remains debated whether it is still beneficial without the dietary control. The aim of this study was to determine both the peripheral and central effects of exercise training combined with a cholesterol-rich diet given ad libitum in old ApoE(-/-) mice. Methods: Forty-five-weeks old obese ApoE(-/-) mice fed with a high cholesterol diet ad libitum were divided into Exercise-trained (EX; running wheel free access) and Sedentary (SED) groups...
2016: Frontiers in Physiology
Alex S Ribeiro, Brad J Schoenfeld, Steven J Fleck, Fábio L C Pina, Matheus A Nascimento, Edilson S Cyrino
The purpose of the present study was to investigate the effect of resistance training (RT) performed in a pyramid (PR) versus a traditional (TD) system on muscular strength, muscle mass, and hormonal responses in older women. Twenty-five older women (67.6 ± 5.1 years, 65.9 ± 11.1 kg, 154.7 ± 5.8 cm, and 27.5 ± 4.5 kg m) performed both a TD and PR system RT program in a balanced crossover design. The TD program consisted of 3 sets of 8-12 RM with a constant load for the 3 sets, whereas the PR system consisted of 3 sets of 12/10/8 RM with incrementally higher loads for each set...
September 23, 2016: Journal of Strength and Conditioning Research
Georges Jabbour, Pascale Mauriege, Denis Joanisse, Horia-Daniel Iancu
The purpose of this study was to evaluate the effects of 6 weeks of supramaximal exercise training (SET) on performance variables and metabolic changes in sedentary obese adults. Twenty-four obese adults were randomly allocated into a non-trained (NT) [n = 12; body mass index (BMI) = 33(3)] and SET group [n = 12; BMI = (33(2)]. After baseline metabolic and fitness measurements, the participants completed a 6-week SET intervention. Metabolic, anthropometric, and fitness assessments were repeated post-intervention...
October 15, 2016: Journal of Sports Sciences
Pamela S Hinton, Peggy Nigh, John Thyfault
PURPOSE: We previously reported that 12months of resistance training (RT, 2×/wk, N=19) or jump training (JUMP, 3×/wk, N=19) increased whole body and lumbar spine BMD and increased serum bone formation markers relative to resorption in physically active (≥4h/wk) men (mean age: 44±2y; median: 44y) with osteopenia of the hip or spine. The purpose of this secondary analysis was to examine the effects of the RT or JUMP intervention on potential endocrine mediators of the exercise effects on bone, specifically IGF-I, PTH and sclerostin...
October 12, 2016: Bone
Diego Pérez-Sotelo, Arturo Roca-Rivada, María Larrosa-García, Cecilia Castelao, Iván Baamonde, Javier Baltar, Ana Belen Crujeiras, Luisa María Seoane, Felipe F Casanueva, María Pardo
The secretion of the hepatokine alpha-2-Heremans-Schmid glycoprotein/Fetuin A, implicated in pathological processes including systemic insulin resistance, by adipose tissue has been recently described. Thus, we have recently identified its presence in white adipose tissue secretomes by mass spectrometry. However, the secretion pattern and function of adipose-derived alpha-2-Heremans-Schmid glycoprotein are poorly understood. The aim of this study is to evaluate the expression and secretion of total and active phosphorylated alpha-2-Heremans-Schmid glycoprotein by adipose tissue from visceral and subcutaneous localizations in animals at different physiological and nutritional status including anorexia and obesity...
October 14, 2016: Endocrine
Tatiana Moro, Grant Tinsley, Antonino Bianco, Giuseppe Marcolin, Quirico Francesco Pacelli, Giuseppe Battaglia, Antonio Palma, Paulo Gentil, Marco Neri, Antonio Paoli
BACKGROUND: Intermittent fasting (IF) is an increasingly popular dietary approach used for weight loss and overall health. While there is an increasing body of evidence demonstrating beneficial effects of IF on blood lipids and other health outcomes in the overweight and obese, limited data are available about the effect of IF in athletes. Thus, the present study sought to investigate the effects of a modified IF protocol (i.e. time-restricted feeding) during resistance training in healthy resistance-trained males...
October 13, 2016: Journal of Translational Medicine
Farzad Zehsaz, Negin Farhangi, Mehri Ghahramani
OBJECTIVES: The purpose of the present study was to investigate the effects of the 16-week exercise training program on serum omentin-1 in relation to change in insulin resistance in obese male children. METHODS: Thirty-two obese male children, aged 9 to 12 years, were randomly assigned into Exercise Group (ExG; n=16) and Control Group (CG; n=16). ExG participated in a 16-week exercise training program which combined various forms of aerobic activities and resistance training...
October 13, 2016: Physician and Sportsmedicine
Jie Zhang, Alan R Light, Charles L Hoppel, Caitlin Campbell, Carol J Chandler, Dustin J Burnett, Elaine C Souza, Gretchen A Casazza, Ronald W Hughen, Nancy L Keim, John W Newman, Gary R Hunter, Jose R Fernandez, W Timothy Garvey, Mary-Ellen Harper, Oliver Fiehn, Sean H Adams
With insulin-resistance or type 2 diabetes mellitus, mismatches between mitochondrial fatty acid fuel delivery and oxidative phosphorylation/tricarboxylic acid cycle activity may contribute to inordinate accumulation of short- or medium-chain acylcarnitine fatty acid derivatives (markers of incomplete long-chain fatty acid oxidation [FAO]). We reasoned that incomplete FAO in muscle would be ameliorated concurrent with improved insulin sensitivity and fitness following a ∼14 wk training and weight loss intervention in obese, sedentary, insulin-resistant women...
October 12, 2016: Experimental Physiology
P Mensberg, S Nyby, P G Jørgensen, H Storgaard, M T Jensen, J Sivertsen, J J Holst, B Kiens, E A Richter, F K Knop, T Vilsbøll
AIMS: Exercise as well as glucagon-like peptide-1 receptor agonist (GLP-1RA) treatment improves glycaemic control in patients with type 2 diabetes. We investigated the effects of exercise in combination with a GLP-1RA (liraglutide) or placebo for the treatment of type 2 diabetes. METHODS: Thirty-three overweight, dysregulated and sedentary patients with type 2 diabetes were randomly allocated to 16 weeks of exercise and liraglutide or exercise and placebo. Both groups had three supervised 60-minute training sessions per week including spinning and resistance training...
September 26, 2016: Diabetes, Obesity & Metabolism
Rebecca M Henderson, X Iris Leng, Elizabeth A Chmelo, Tina E Brinkley, Mary F Lyles, Anthony P Marsh, Barbara J Nicklas
BACKGROUND: Little is known about the comparative effect of aerobic training (AT) versus resistance training (RT) on gait speed, a strong predictor of disability. AIMS: To compare the effect of AT versus RT on gait speed and other functional measures. METHODS: Overweight and obese [body mass index (BMI) ≥27.0 kg/m(2)] sedentary men and women aged 65-79 years engaged in 5 months of either 4 days/weeks moderate-intensity treadmill walking, AT, (n = 44) or 3 days/weeks moderate-intensity RT (n = 56)...
September 28, 2016: Aging Clinical and Experimental Research
Rositsa Raikova, Piotr Krutki, Jan Celichowski
An unfused tetanus of a motor unit (MU) evoked by a train of pulses at variable interpulse intervals is the sum of non-equal twitch-like responses to these stimuli. A tool for a precise prediction of these successive contractions for MUs of different physiological types with different contractile properties is crucial for modeling the whole muscle behavior during various types of activity. The aim of this paper is to develop such a general mathematical algorithm for the MUs of the medial gastrocnemius muscle of rats...
2016: PloS One
Gen-Min Lin, Yi-Hwei Li, Chung-Jen Lee, Jeng-Chuan Shiang, Ko-Huan Lin, Kai-Wen Chen, Yu-Jung Chen, Ching-Fen Wu, Been-Sheng Lin, Yun-Shun Yu, Felicia Lin, Fung-Ying Su, Chih-Hung Wang
AIM: To investigate the association between cardiorespiratory fitness and hospitalization events in a cohort of large voluntary arm forces in Taiwan. METHODS: The cardiorespiratory fitness and hospitalization events in armed forces (CHIEF) is a retrospective cohort consisting of more than 4000 professional military members aged 18-50 years in Eastern Taiwan. All participants received history taking, physical examination, chest radiography, 12-lead electrocardiography, blood tests for cell counts and fasting glucose, lipid profiles, uric acid, renal function and liver function in the Hualien Armed Forces General Hospital during 2014...
August 26, 2016: World Journal of Cardiology
Clare Chung-Wah Yu, Alison Mary McManus, Hung-Kwan So, Ping Chook, Chun-Ting Au, Albert Martin Li, Jack Tat-Chi Kam, Raymond Chi-Hung So, Christopher Wai-Kei Lam, Iris Hiu-Shuen Chan, Rita Yn-Tz Sung
AIM: To determine the benefits of a 10-wk resistance training programme on cardiovascular health in non-obese and active adolescents. METHODS: This is a pragmatic randomised controlled intervention. The study was carried out in a Hong Kong Government secondary school. Thirty-eight lean and active boys and girls were randomised to either the resistance training group or the control group. Students in the resistance training group received in-school 10-wk supervised resistance training twice per week, with each session lasting 70 min...
August 8, 2016: World Journal of Clinical Pediatrics
Anthony P James, Joanna Whiteford, Timothy R Ackland, Satvinder S Dhaliwal, Jenni J Woodhouse, Richard L Prince, Xingqiong Meng, Deborah A Kerr
PURPOSE: Resistance exercise is promoted in older adults for its ability to improve muscle mass, strength and, hence, in reducing falls. However, its effects on blood lipids and CVD risk are less well established, particularly in this age group. This study aimed to investigate whether a 1-year resistance exercise program improves lipid profile and chylomicron concentration in older men. METHODS: Participants were randomised to either three, 1 h resistance training sessions per week (RE) or an active control group [asked to undertake three 30 min walking sessions per week (AC)]...
September 2, 2016: European Journal of Applied Physiology
Favil Singh, Robert U Newton, Michael K Baker, Nigel A Spry, Dennis R Taaffe, Jeffery Thavaseelan, Daniel A Galvão
BACKGROUND: Prostatectomy is associated with short- and long-term morbidity, which includes attenuation of muscle function and deterioration of lean body mass. Physical function is a known predictor of morbidity and mortality, with initial evidence indicating that presurgical exercise is associated with fewer postsurgical complications and shorter hospitalization. The aim was to determine the feasibility of a supervised presurgical exercise program for prostate cancer (PCa) patients scheduled for prostatectomy...
September 1, 2016: Integrative Cancer Therapies
Kirstie Graham, Chomba Sinyangwe, Sarala Nicholas, Rebecca King, Samuel Mukupa, Karin Källander, Helen Counihan, Mark Montague, James Tibenderana, Prudence Hamade
BACKGROUND: Antibiotic resistance is an issue of growing global concern. One key strategy to minimise further development of resistance is the rational use of antibiotics, by providers and patients alike. Through integrated community case management (iCCM), children diagnosed with suspected pneumonia are treated with antibiotics; one component of an essential package to reduce child mortality and increase access to health care for remote populations. Through the use of clinical algorithms, supportive supervision and training, iCCM also offers the opportunity to improve the rational use of antibiotics and limit the spread of resistance in resource-poor contexts...
2016: BMC Public Health
Dawid Łochyński, Dominik Kaczmarek, Włodzimierz Mrówczyński, Wojciech Warchoł, Joanna Majerczak, Janusz Karasiński, Michał Korostyński, Jerzy A Zoladz, Jan Celichowski
Dynamic resistance training increases the force and speed of muscle contraction, but little is known about modifications to the contractile properties of the main physiological types of motor units (MUs) that contribute to these muscle adaptations. Although the contractile profile of MU muscle fibers is tightly coupled to myosin heavy chain (MyHC) protein expression, it is not well understood if MyHC transition is a prerequisite for modifications to the contractile characteristics of MUs. In this study, we examined MU contractile properties, the mRNA expression of MyHC, parvalbumin, and sarcoendoplasmic reticulum Ca(2+) pump isoforms, as well as the MyHC protein content after 5 wk of volitional progressive weight-lifting training in the medial gastrocnemius muscle in rats...
October 1, 2016: Journal of Applied Physiology
Jonas Vinstrup, Joaquin Calatayud, Markus D Jakobsen, Emil Sundstrup, Lars L Andersen
Background. Muscle strength is markedly reduced in stroke patients, which has negative implications for functional capacity and work ability. Different types of feedback during strength training exercises may alter neuromuscular activity and functional gains. Objective. To compare levels of muscle activity during conditions of blindfolding and intended high contraction speed with a normal condition of high-intensity knee flexions. Methods. Eighteen patients performed unilateral machine knee flexions with a 10-repetition maximum load...
2016: Neurology Research International
Ju Yong Bae, Ki Ok Shin, Jinhee Woo, Sang Heon Woo, Ki Soeng Jang, Yul Hyo Lee, Sunghwun Kang
PURPOSE: The purpose of this study was to investigate the effect of exercise and dietary change on obesity and insulin resistance and mTOR signaling protein levels in skeletal muscles of obese rats. METHODS: Sixty male Sprague-Dawley rats were divided into CO (Normal diet) and HF (High Fat diet) groups in order to induce obesity for 15 weeks. The rats were then subdivided into CO, COT (CO + Training), HF, HFT (HF + Training), HFND (Dietary change), and HFNDT (HFND + Training) groups (10 rats / group)...
June 2016: Journal of Exercise Nutrition & Biochemistry
Iris A Lesser, Jordan A Guenette, Amandah Hoogbruin, Dawn C Mackey, Joel Singer, Danijela Gasevic, Scott A Lear
The South Asian population suffers from a high prevalence of type 2 diabetes and cardiovascular disease (CVD). A unique obesity phenotype of elevated visceral adipose tissue (VAT) is associated with CVD risk among South Asians. Exercise-induced reduction in VAT and body fat is an effective mechanism to improve cardiometabolic risk factors but this has not been shown in South Asians. Whether exercise-induced changes in measurements such as waist circumference (WC) are independently related to changes in cardiometabolic risk factors in South Asians is unknown...
September 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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