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New On-Water Test for the Assessment of Blood Lactate Response to Exercise in Elite Kayakers
- Source :
- Medicine and science in sports and exercise (Online) 51 (2019): 2595–2602. doi:10.1249/MSS.0000000000002077, info:cnr-pdr/source/autori:Pilotto AM 1,2, Rasica L 3,4, Scalise G 1, Annoni S 1, La Torre A 4,5, Marzorati M 1, Porcelli S 1./titolo:New On-Water Test for the Assessment of Blood Lactate Response to Exercise in Elite Kayakers/doi:10.1249%2FMSS.0000000000002077/rivista:Medicine and science in sports and exercise (Online)/anno:2019/pagina_da:2595/pagina_a:2602/intervallo_pagine:2595–2602/volume:51
- Publication Year :
- 2019
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2019.
-
Abstract
- PURPOSE: Lactate thresholds are physiological parameters used to train athletes and monitor performance or training. Currently, the assessment of lactate thresholds in kayakers is performed in a laboratory setting utilizing specific ergometers; however, laboratory tests differ from on-water evaluation for several reasons. The aim of this study was to assess reliability and validity of a new on-water incremental test for the assessment of blood lactate response to exercise in flat-water kayakers. Maximal lactate steady state test (MLSS) was used as criterion measurement. METHODS: Eleven junior (16.5±1.9yr) élite flat-water kayakers performed: i) an incremental cardiopulmonary test up to voluntary exhaustion on a stationary kayak ergometer to determine peak oxygen uptake; ii) an on-water 1000m distance trial (T1000) to record best performance time and average speed (S1000); iii) two repetitions of on-water incremental kayaking test (WIK-test); iv) several repetitions of on-water constant speed tests to determine MLSS. Speed, heart rate and blood lactate concentrations were determined during on-water tests. RESULTS: The best performance time in T1000 was 262±13s, corresponding to an S1000 of 3.82±0.19m·s. Lactate threshold determined by modified Dmax method (LTDmod) during WIK-test was 2.78±1.02mmol·L and the corresponding speed (SLT) was 3.34±0.16m·s. Test-retest reliability, calculated on SLT, was strong (ICC=0.95 and r=0.93). MLSS corresponded to 3.06±0.68mmol·L and was reached at a speed (SMLSS) of 3.36±0.14m·s. Correlation coefficient between SLT and SMLSS was 0.90 (p=0.0001). Interestingly, a significant correlation (r=0.96, p
- Subjects :
- Male
medicine.medical_specialty
Adolescent
Anaerobic Threshold
biology
business.industry
Athletes
Lactic acid blood
Reproducibility of Results
Physical Therapy, Sports Therapy and Rehabilitation
Athletic Performance
biology.organism_classification
Exercise Test
Humans
Lactic Acid
Water Sports
Test (assessment)
Blood lactate
Physical therapy
Medicine
Orthopedics and Sports Medicine
business
Subjects
Details
- ISSN :
- 15300315 and 01959131
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- Medicine & Science in Sports & Exercise
- Accession number :
- edsair.doi.dedup.....687f1d32b5bc655b7eb25f2d788b87b8