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THE EFFECTS OF WARM-UP DURATION ON CYCLING TIME TRIAL PERFORMANCE IN TRAINED CYCLISTS

100%
Bunn J. A., Eschbach L. C., Magal M., Wells E. K.
Central European Journal of Sport Sciences and Medicine
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2017
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vol. 17
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issue 1
5-13
EN
The purpose of this study was to assess the effects of three different warm-up condi-tions on a 5K cycling time trial (TT). Sixteen trained cyclists completed the study. At the first testing session, participants completed a maximal graded exercise test to assess maximal oxygen consumption (VO2max) and a familiarization of the TT. At three subse-quent visits, the participants completed the TT after no warm up, short warm-up of three minutes at 60% VO2max, or long warm-up of ten minutes at 60% VO2max. The warm-up was assigned in randomized order. VO2, heart rate (HR), lactate, power, and speed were assessed after the warm-up, 1K, and completion of the 5K TT. There was no dif-ference between type of warm-up for time, power, cadence, speed, VO2, HR, or lactate levels at the end of the TT. There was no significant difference between type of warm-up for time, VO2 or HR at the end of the 1K split. Warm-up length was not impactful on 5K TT performance or during the first km of the TT in trained cyclists. These results con-flict with previous evidence indicating that a warm-up in endurance events primarily improved VO2 kinetics at the onset of the exercise.
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The Level of Aerobic and Anaerobic Capacity and the Results of a Special Mobility Fitness Test of Female Judo Contestants

100%
Wolska B., Smulskij V., Jagiełło W.
Baltic Journal of Health and Physical Activity
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2009
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vol. 1
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issue 2
105-110
EN
Background: The purpose of this work is to determine the correlation between the indexes of the special fitness test and the parameters of aerobic and anaerobic capacities of women judo competitors during the preparation to the competitive period.Material/Methods: In the research presented in the paper the level of aerobic and anaerobic capacity and the results of a special mobility fitness test of female judo contestants, either members of the Olympic and National Teams or their immediate reserves, was determined (n=11). In order to assess the aerobic capacity a test with increasing load until the refusal to continue the test was applied, while the anaerobic capacity was assessed thanks to the application of 30 seconds Wingate Test with a load on lower limbs. Within the framework of the assessment of special mobility fitness, the Special Judo Fitness Test (SFJT) was applied.Results: An analysis of correlation between the anthropometric indices and SJFT indices was carried out; besides that a correlation between the indices of aerobic and anaerobic capacity and the results of the special mobility fitness test were analyzed.Conclusions: On the basis of analysis of the empirical material it was determined that the indices of special mobility fitness test clearly correlated with the relative values of indices that characterized the aerobic and anaerobic capacity. A lower level of indices of aerobic and anaerobic capacity in comparison with results obtained by other authors was observed, while the indices diagnosing the level of special fitness of female judo contestants had a higher value.
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Exercise Intensity and Validity of the Ratings of Perceived Exertion (Borg and OMNI Scales) in an Indoor Cycling Session

86%
Muyor J. M.
Journal of Human Kinetics
|
2013
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vol. 39
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issue 1
93-101
EN
The purpose of the study was: 1) to determine the intensity of an indoor cycling session; 2) to know the correlation between the rating of perceived exertion (RPE) scales (Borg and OMNI) and % heart rate reserve (%HRR) with categories; and 3) to evaluate the validity of RPE scales (Borg and OMNI) with respect to the heart rate (HR) and %HRR. A total of fifty-three subjects, 25 males and 28 females (ages: 28.79 ± 6.04 years; body height: 1.71 ± 0.09 m; body mass: 69.59 ± 13.69 kg) were recruited from a private fitness club. All subjects performed the same predesigned indoor cycling session with a total duration of 50 minutes. During the experimental trial, the HR was recorded every 5 s. The Borg 6-20 RPE and OMNI 0-10 scales were used to assess perceived exertion in each phase. The average HR in the cardiovascular phase was 152.24 ± 14.11 b•min-1, the %HRR was 80.62 ± 7.10; and the overall RPE (Borg and OMNI scales) was 14.94 ± 1.11 and 7.18 ± 0.79 points, respectively. The correlation between an average HR and %HRR with Borg and OMNI scales was lower than r = 0.4 (p < 0.05). The correlation value between the Borg and the OMNI RPE scales was r = 0.82 (p < 0.001). It can be concluded that indoor cycling elicits effort of high intensity which could be inappropriate for some participants. The Borg and OMNI scales showed a low validity to quantify the intensity performed in indoor cycling sessions. It indicates the necessity to control the intensity of effort with other instruments to improve efficacy and decrease the risk of overload in this activity.
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