Reliability of the calculated maximal lactate steady state in amateur cyclists
Journal Title: Biology of Sport - Year 2015, Vol 32, Issue 2
Abstract
Complex performance diagnostics in sports medicine should contain maximal aerobic and maximal anaerobic performance. The requirements on appropriate stress protocols are high. To validate a test protocol quality criteria like objectivity and reliability are necessary. Therefore, the present study was performed in intention to analyze the reliability of maximal lactate production rate (VLa[sub]max[/sub]) by using a sprint test, maximum oxygen consumption (VO[sub]2[/sub][sub]max[/sub]) by using a ramp test and, based on these data, resulting power in calculated maximum lactate-steady-state (PMLSS) especially for amateur cyclists. All subjects (n=23, age 26 ± 4 years) were leisure cyclists. At three different days they completed first a sprint test to approximate VLa[sub]max[/sub]. After 60 min of recreation time a ramp test to assess VO[sub]2[/sub][sub]max[/sub] was performed. The results of VLa[sub]max[/sub]-test and VO[sub]2max[/sub]-test and the body weight were used to calculate PMLSS for all subjects. The intra class correlation (ICC) for VLa[sub]max[/sub] and VO2[sub]max[/sub] was 0.904 and 0.987, respectively, coefficient of variation (CV) was 6.3 % and 2.1 %, respectively. Between the measurements the reliable change index of 0.11 mmol∙l[sup]-1[/sup]∙s[sup]-1[/sup] for VLa[sub]max[/sub] and 3.3 ml∙kg[sup]-1[/sup]∙min[sup]-1[/sup] for VO[sub]2[/sub][sub]max[/sub] achieved significance. The mean of the calculated PMLSS was 237 ± 72 W with an RCI of 9 W and reached with ICC = 0.985 a very high reliability. Both metabolic performance tests and the calculated PMLSS are reliable for leisure cyclists
Authors and Affiliations
Jennifer Adam, Matthias Oehmichen, Eva Oehmichen, Janine Rother, Ulrike Müller, Thomas Hauser, Henry Schulz
Moral attitudes towards doping – what do athletes on the verge of maturity value?
The aim of the present study was twofold: a) to verify the previously detected regularities in a group of subjects larger than the one employed in a pilot study, and b) to define the internal structure of the hierarchy o...
A PILOT STUDY ON HOW DO ELITE SURFSKI PADLLERS MANAGE THEIR EFFORT AND HYDRATION PATTERN IN THE HEAT
To investigate thermal response, hydration behaviour and performance over flatwater kayaking races in tropical conditions (36.8°C and 68 % rh). Five internationally-ranked subjects participated in the 2012 Surfski Ocean...
Gender differences in response to weight cycling in elite judoists
Background: Existing reports on the effects of weight cycling in weight class sports used indirect and cumbersome techniques to estimate soft tissue alterations and did not address gender differences. Novelty and aim of...
Cardiovascular risk in students with different level of aerobic capacity
Study aim: Estimation of cardio-vascular risk in young adults with different level of aerobic capacity. Materials and Methods: In 162 students,75 women and 87 men in average age 20.19±1.11 and 20.18±0.77, respectively we...
SPORT EXERCISE CAPACITY OF SOCCER PLAYERS AT DIFFERENT LEVELS OF PERFORMANCE
The aim of the study is to compare the level of exercise capacities to the loads occurring at the lactate threshold among soccer players representing different levels of sport mastery. The research included 51 soccer pla...