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training routines comparable with their younger counterparts. High-intensity interval training (HIIT) is a time-efficient strategy to achieve health ( 3 ) and performance ( 4 ) benefits in younger cohorts, which contradicts the recommended minimum
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was increased, which rendered bioavailable testosterone (bio-T) and free testosterone (free-T) unaltered compared to pre-training. High-intensity interval training (HIIT) uses small volumes of exercise to bring about disproportionate increases in
Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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body muscle groups by either using cycle ergometers or treadmills ( 5 , 7 , 10 , 11 , 12 , 13 , 14 ). Thus, little is known about effects of high-intensity interval training (HIIT) recruiting upper and lower body muscle groups on beta