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Lauree M. Grubbs

Women, considering swimming as a form of exercise to lose weight, have been discouraged from doing so, since researchers suggest that swimming does not burn fat as efficiently as land exercise. The purpose of this study was to compare carbohydrate and fat utilization by women engaging in two different forms of exercise, walking and swimming, at the same intensity and duration. Subjects were 20 moderately trained female subjects, walkers (W) = 10 and swimmers (S) = 10; ages 18-40 years. Measurements of blood free fatty acids (FFA), glycerol, lactate, glucose, free fatty acid turnover (FFAT), respiratory quotient (RQ), and fat oxidation were made during 60 minutes of walking or swimming at the same exercise intensity. Multivariate analysis of variance determined no significant differences between groups in net energy expenditure (NEE), RQ, fat oxidation, blood FFA, glycerol, glucose, and FFAT(p > .05). There was a significant difference between groups in blood lactic acid levels (p < .01). Since it was found that swimming and walking at the same duration and intensity bum similar amounts of fat and carbohydrate as energy sources during exercise, women may find swimming to be a viable form of exercise for weight control.

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Daniel Arvidsson, Elias Johannesson, Lars Bo Andersen, Magnus Karlsson, Per Wollmer, Ola Thorsson and Magnus Dencker

balance. It has been shown that muscle cells produce and use BDNF as a response to muscle contraction enhancing fat oxidation. 5 NGF, on the other hand, may have a general alerting effect on the body and thereby stimulates increase in metabolism. 6 Platelet concentration and serum BDNF increase with age

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Hellen C.G. Nabuco, Crisieli M. Tomeleri, Rodrigo R. Fernandes, Paulo Sugihara Junior, Edilaine F. Cavalcante, Danielle Venturini, Décio S. Barbosa, Analiza M. Silva, Luís B. Sardinha and Edilson S. Cyrino

concentrations of calciotropic hormones, which in turn could reduce lipogenesis and increase lipolysis, thereby increasing fatty acid availability for fat oxidation ( Gonzalez et al., 2012 ; Zemel, 2004 ). However, we did not measure the calcium content of our supplementation and we also did not measure the

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Inès Boukabous, Alexis Marcotte-Chénard, Taha Amamou, Pierre Boulay, Martin Brochu, Daniel Tessier, Isabelle Dionne and Eléonor Riesco

, which is less intense than SIT, favors fat oxidation to a higher extent than SIT ( Astorino & Schubert, 2018 ). Moreover, treadmill training protocols seem better than those designed on an ergocycle to reduce visceral FM ( Maillard, Pereira, & Boisseau, 2018 ; Wewege et al., 2017 ). The HIIT protocol

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Erik A. Willis, Amanda N. Szabo-Reed, Lauren T. Ptomey, Jeffery J. Honas, Felicia L. Steger, Richard A. Washburn and Joseph E. Donnelly

. 11033978 10.1038/sj.ijo.0801374 23. Astorino TA , Schubert MM , Palumbo E , Stirling D , Mcmillan DW . Effect of two doses of interval training on maximal fat oxidation in sedentary women . Med Sci Sports Exerc . 2013 ; 45 ( 10 ): 1878 – 1886 . PubMed ID: 23531715 doi:10.1249/MSS.0b013e

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Astrid C.J. Balemans, Han Houdijk, Gilbert R. Koelewijn, Marjolein Piek, Frank Tubbing, Anne Visser-Meily and Olaf Verschuren

standing time during the day. 41 A recent study showed that, comparable with our findings, not only muscle activity but also fat oxidation and circulating glucose level increased with standing. 39 This indicates that including muscle activity, in favor of energy expenditure only, influences metabolic

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Katja Krustrup Pedersen, Esben Lykke Skovgaard, Ryan Larsen, Mikkel Stengaard, Søren Sørensen and Kristian Overgaard

extend previous research and support the use of thigh-placed accelerometers for assessment of PA involving walking and running. References Achten , J. , Gleeson , M. , & Jeukendrup , A.E. ( 2002 ). Determination of the exercise intensity that elicits maximal fat oxidation . Medicine & Science in