The participants was basically fulfilled within their designated address because of the certainly new investigators, exactly who seemed the pre-try standardization steps, since the demonstrated above, was adopted. 17 of your cyclists (nine men; 8 ladies) were tested am (start times anywhere between h and you will h) as well as the remaining one or two girls have been examined after work (start minutes h and you may h). The field trips occurred in the inner metropolitan and you will residential district–rural areas of Stockholm, Sweden. Reveal breakdown ones areas in addition to their limitations will likely be found in Wahlgren and you may Schantz . Almost all of the players (6 ladies and you will eight boys) stage commuted off residential district to help you internal towns (cf. Desk step one).
The participants were instructed to cycle at their normal pace, and their HR was measured continuously. They were not able to drink during their cycle commute. The mean values of the lowest, middle and highest fifth of heart rates abdlmatch during each participants? cycle commuting were used to estimate the corresponding level of VO2 based on the HR-VO2 regression equations from the laboratory. These heart rate segments were determined through ordering all heart rates from the lowest to the highest, and then dividing them into segments of 1/5 of all heart rates. In each of these segments, the heart rates were normally distributed.
The fresh new doing period of the period excursion are synchronized into second detective waiting at attraction, as well as on coming the excursion day are noted. The players have been asked to verify if or not its drawn routes into maps was actually removed all the way, of course not, any departure throughout the in the first place noted station are put into the map. All round cycling velocity try determined according to the channel ranges mentioned on expectations method while the travels big date (cf. Table step 1).
Absolute and you may % differences between organizations throughout the pre-aspect methodological degree was indeed examined having Student’s matched up t-evaluating and something-attempt t-tests, respectively.
The reproducibility of the paired individual data for VO2 and HR between test and retest in the laboratory was calculated as absolute and relative differences, and analyzed with Student?s paired t-test as well as coefficient of variation (CV). The CV was calculated by dividing the standard deviation of the difference between the test–retest values by v2. This value (typical error) was then divided with the average of the test–retest values and multiplied by 100 .
The HR-VO2 relations based on each individual?s paired VO2 and HR from three submaximal work rates (model 1) plus a maximal work rate (model 2), at test and retest were described by linear regression analyses and correlation coefficients (r-values). The absolute differences in y-intercepts, slopes and r-values between test and retest were evaluated with paired Student?s t-test for each model. The absolute values for the y-intercepts, slopes and r-values at test and retest were also compared between model 1 and 2 with paired Student?s t-test, and the 95% confidence intervals for the mean values were calculated.
The reproducibility of the estimated VOdos, based on the regression equations from test and retest, and calculated on the basis of three levels of HR from each individual?s cycle commuting, is presented in absolute figures and absolute as well as relative differences. They were analyzed for all individuals with Student?s paired t-test, the 95% confidence intervals for the mean values and coefficient of variation (CV).
Whether the levels of estimated VO2 at test and retest, as well as the differences between test and retest, were altered between model 1 and 2 were also evaluated with Student?s paired t-test and 95% confidence intervals for the mean values. Bland-Altman plots with 95% limits of agreement in individual absolute values of estimated VO2 were graphically displayed .