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André Filipe Paulino da Silva Bento, Luis Carrasco Páez, and Armando Manuel de Mendonça Raimundo

characteristics or performances. There seems to be a lack of research specifically reporting PEC contributions to increasing PA. Therefore, high-intensity interval training (HIIT) is presented as a time-efficient alternative to aerobic training ( Kilian et al., 2016 ; Kong, Sun, Liu, & Shi, 2016 ; Logan et

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Patrick P.J.M. Schoenmakers, Florentina J. Hettinga, and Kate E. Reed

High-intensity interval training (HIIT) is regarded as a highly effective training modality to improve cardiorespiratory and metabolic functioning, and it is a common practice in training regimens of many athletes, particularly those involved in endurance events. 1 In HIIT, repeated periods of

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Abby R. Fleming, Nic Martinez, Larry H. Collins, Candi D. Ashley, Maureen Chiodini, Brian J. Waddell, and Marcus W. Kilpatrick

Medicine, 2018 ). One specific approach to improving health and fitness through exercise that has received considerable attention in the literature, and among the general population, is high-intensity interval training (HIIT), which incorporates repeated bursts of intense aerobic exercise with periods of

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Iñigo Mujika, Nicolas Bourdillon, Rafa González De Txabarri, and Gregoire P. Millet

amplitude of the primary phase (A 1 ) remain unclear. Both mechanisms would increase the rate of aerobic energy provision during rest-to-exercise transitions. In the present study, we compared 2 different high-intensity interval-training (HIIT) programs in highly trained rowers and tested the hypothesis

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José D. Jiménez-García, Fidel Hita-Contreras, Manuel de la Torre-Cruz, Raquel Fábrega-Cuadros, Agustín Aibar-Almazán, David Cruz-Díaz, and Antonio Martínez-Amat

intrinsic risk factors ( Nemoto, Gen-no, Masuki, Okazaki, & Nose, 2007 ). One of the main barriers to the habitual practice of physical exercise in adults is “the lack of time” ( Stutts, 2002 ). With this in mind, high-intensity interval training (HIIT) was developed with low-volume exercises. Furthermore

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Lucas Jurado-Fasoli, Wei Yang, Isabelle Kohler, Manuel Dote-Montero, Francisco J. Osuna-Prieto, Xinyu Di, Thomas Hankemeier, Elke H.J. Krekels, Amy C. Harms, Manuel J. Castillo, Francisco J. Amaro-Gahete, and Borja Martinez-Tellez

. Therefore, a randomized controlled trial was undertaken to investigate the effects of a 12-week exercise intervention involving concurrent training based on international physical activity recommendations (PAR group), high-intensity interval training (HIIT group), and HIIT together with whole

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Andrea Nicolò, Marco Montini, Michele Girardi, Francesco Felici, Ilenia Bazzucchi, and Massimo Sacchetti

effort can be measured by means of respiratory frequency ( f R ), but current evidence is limited to cycling exercise. 11 Unlike V ˙ O 2 , HR, and blood lactate concentration, f R shows a close association with RPE during high-intensity interval training (HIIT) 12 , 13 and other high

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Florence-Emilie Kinnafick, Cecilie Thøgersen-Ntoumani, Sam O. Shepherd, Oliver J. Wilson, Anton J.M. Wagenmakers, and Christopher S. Shaw

intervention ( Biddle & Batterham, 2015 ) is high-intensity interval training (HIIT). HIIT typically involves repeated bouts of high-intensity exercise interspersed with periods of low-intensity recovery or rest ( Shepherd et al., 2015 ). HIIT, as an intervention approach for previously inactive adults, has

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Amelia Guadalupe-Grau, Susana Aznar-Laín, Asier Mañas, Juan Castellanos, Julián Alcázar, Ignacio Ara, Esmeralda Mata, Rosa Daimiel, and Francisco José García-García

To investigate the short- and long-term effects of concurrent strength and high-intensity interval training (HIIT) on octogenarian COPD patients, nine males (age = 84.2 ± 2.8 years, BMI = 29.3 ± 2.3) with low to severe COPD levels (2.1 ± 1.5 BODE index) underwent a supervised 9-week strength and HIIT exercise program. Training had a significant (p < .05) impact on senior fitness test scores (23–45%), 30-m walking speed (from 1.29 ± 0.29–1.62 ± 0.33 m/s), leg and chest press 1RM (38% and 45% respectively), maximal isometric strength (30–35%), and 6-min walking test (from 286.1 ± 107.2–396.2 ± 106.5 m), and tended to increase predicted forced vital capacity by 14% (p = .07). One year after the intervention all training-induced gains returned to their preintervention values except for the chest press 1RM (p <.05). Short-term concurrent strength and HIIT training increases physical fitness in the oldest-old COPD patients, and has potential long-term benefits.

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Aashirwad Mahajan, Satish Mahajan, and Swanand Tilekar

training (HIIT) as compared with continuous moderate-intensity exercise ( Milanović, Sporiš, & Weston, 2015 ; Osuka et al., 2017 ; Weston, Wisløff, & Coombes, 2014 ). Interestingly, HIIT has also proved to give better gains in peak oxygen uptake as compared with continuous moderate-intensity exercise