The players was in fact found during the the appointed address from the certainly the detectives, whom checked your pre-sample standardization procedures, because the discussed more than, had been then followed. 17 of one’s bikers (9 people; 8 girls) was indeed looked at in the morning (begin moments anywhere between h and h) as well as the leftover one or two females was examined after finishing up work (initiate minutes h and h). Industry vacation taken place about inner urban and you will residential district–outlying aspects of Stockholm, Sweden. A detailed dysfunction of those parts in addition to their borders is going to be utilized in Wahlgren and you may Schantz . A good many professionals (six lady and you may 7 guys) years commuted out of residential district so you can internal cities (cf. Table 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 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 starting period of the duration journey try synchronized towards second investigator wishing at interest, as well as on coming the travel date try detailed. The players was in fact asked to ensure whether their removed pathways to your maps got drawn completely, if in case perhaps not, one departure in the to start with noted channel is put into the brand new map. All round cycling acceleration is calculated based on the channel ranges counted on requirement strategy and the journey big date (cf. Desk 1).
Statistical analyses
Pure and you can per cent differences between communities in the pre-aspect methodological knowledge were examined with Student’s matched t-testing and another-take to t-evaluating, correspondingly.
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, uberhorny slevový kód 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 VO2, 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 .