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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Physiologic effects of directional changes in intermittent exercise in soccer players
Journal of Strength and Conditioning Research, Volume 24, No. 12, Year 2010
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Description
The aim of the present study was to compare the physiologic impact of intermittent exercise in specific shuttle running (IS), which requires 180° directional changes, and traditional in-line (IL) running. Ten elite male adult soccer players performed different intermittent exercises according to their maximal aerobic velocity (νVO2max): 30- 30 seconds at 100% (30 s of runs at 100% of νVO2max alternated with 30-s recovery period), 105%, and 110% of νVO2max with active recovery, 15-15 seconds at 105%, 110%, and 115% of νVO2max, and 10-10 seconds at 110%, 115%, and 120% of νVO2max with passive recovery. Each exercise was performed in the IL and IS format in a randomized order. Heart rate (HR) expressed in percentage of HR reserve (HRres), postexercise blood lactate concentration [La], and ratings of perceived exertion (RPE) were recorded. The different 30-30 seconds showed significantly higher HRres responses in IS compared with IL (p < 0.01). The [La] and RPE results indicated higher values in IS. In conclusion, the physiologic impact of specific IS is substantially higher than in traditional IL. The changes of direction induce an increase in the anaerobic metabolism solicitation and consequently create different responses compared with traditional IL running. This information can aid coaches in the design of intermittent training programs using classical (IL) or a specific form (IS) of running to induce different physiologic responses. © 2010 National Strength and Conditioning Association.
Authors & Co-Authors
Dellal, Alexandre
France, Strasbourg
University of Sports Science and Exercise
Tunisia
National Centre of Medicine and Science in Sport Cnmss
France, Lyon
Olympique Lyonnais fc Soccer
Keller, Dominique
France, Strasbourg
University of Sports Science and Exercise
Carling, Christopher J.
France, Camphin-en-pévèle
Losc Lille Metropole Football Club
Chaouachi, Anis
Tunisia
National Centre of Medicine and Science in Sport Cnmss
Wong, Del Pui Lam
Hong Kong, Hong Kong
Hong Kong Baptist University
Chamari, K.
Tunisia
National Centre of Medicine and Science in Sport Cnmss
Statistics
Citations: 6
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.1519/JSC.0b013e3181b94a63
ISSN:
10648011
Participants Gender
Male