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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Validity of an on-court lactate threshold test in young basketball players
Journal of Strength and Conditioning Research, Volume 24, No. 9, Year 2010
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Description
The aim of this study was to assess the criterion validity of a submaximal field test (Intermittent Shuttle-Running Test [ISRT]) for lactate threshold (LT) detection in young basketball players. Fourteen basketball players (age 15.3 ± 0.6 years, height 182 ± 4.6 cm, and body mass 71.6 ± 6.3 kg) were submitted in random order and on separate occasions, to ISRT (20-m shuttle running for 4 minutes at 9, 10 and 11 km·h-1) and to a treadmill intermittent progressive test (criterion validity, TM) devised for the assessment of LT (4-minute stages at 8, 10, 12, 14 km·h -1). Blood-lactate concentrations [La]b were assessed taking earlobe blood samples at rest and immediately after each of the 4-minute running steps considered for ISRT and TM. Lactate threshold was considered as the running speed attained at 1 mmol·L-1 [La]b above resting levels. Results showed that speed at LT during ISRT and TM was significantly related (r= 0.82, p < 0.001). However, speed at LT during the ISRT showed to be significantly lower than the speed at LT during TM (10.1 ± 1.7 vs. 12 ± 2.3 km·h-1, p < 0.001). During ISRT, players attained 80 ± 4.7, 87 ± 4.4, and 92 ± 3.0% of maximal heart rate (HR) at 9, 10, and 11 km·h-1, respectively. This study results show that ISRT may be used as a valid field test to assess submaximal aerobic fitness in young team-sport players. Continuous 20-m shuttle running performed at 11 km·h-1 revealed to elicit HR in the range of those reported to induce aerobic-fitness development in trained subjects. In light of study finding, ISRT may be considered in testing batteries for basketball players to complement anaerobic fitness and agility. © 2010 National Strength and Conditioning Association.
Authors & Co-Authors
Castagna, Carlo
Italy, Ancona
Italian Olympic Committee Coni
Italy, Rome
Facoltà Di Medicina e Chirurgia Università Degli Studi Di Roma Tor Vergata
Manzi, Vincenzo
Italy, Rome
Facoltà Di Medicina e Chirurgia Università Degli Studi Di Roma Tor Vergata
Impellizzeri, Franco M.
Switzerland, Zurich
Schulthess Klinik
Chaouachi, Anis
Tunisia, Tunis
Institut Supérieur du Sport et de L'education Physique de Ksar-saïd
Abdelkrim, Nidhal Ben
Tunisia, Tunis
République Tunisienne Ministère de la Jeunesse, Des Sports et de L'éducation Physique
Ditroilo, Massimiliano
Italy, Ancona
Italian Olympic Committee Coni
Italy, Urbino
Università Degli Studi Di Urbino Carlo bo
Statistics
Citations: 25
Authors: 6
Affiliations: 6
Identifiers
Doi:
10.1519/JSC.0b013e3181e2e1bf
ISSN:
10648011