Program og oversikt over posterpresentasjoner - Høgskolen i Bergen

Results: 38 (0.6%) men and 106 (1.4%) women had O-RCSS, whereas 88 (1.5%) men and 192 (2.5%)
women had CSS. The prevalences of asthma and hay fever were significantly higher in individuals
with O-RCSS compared to those with CSS. Logistic regression analyses adjusting for possible
confounders showed increased odds of asthma and hay fever in those with O-RCSS. There were no
differences between the two groups in psychiatric symptoms.
In conclusion, asthma and hay fever are exclusive for those with O-RCSS, whereas psychiatric
symptoms are not.
Kristoffersen M1, Leirdal S2, and Iversen VV1
1 Department of Sport and Physical Education, Bergen University College, Bergen; Norway, 2Department for Human
movement Science, Norwegian University of Science and Technology, Trondheim, Norway
Effects of low cadence interval training in cycling (Poster)
Introduction: Low cadence interval training (40-60 RPM at 72-82 %HRmax) is a common training
method for cyclists. The effect of low cadence training on endurance-performance, and muscle
strength is to our knowledge, not investigated. The aim of the present study was to investigate the
effects of low cadence training in highly trained veteran cyclists on 30 min cycling performance,
lactate threshold, VO2max and muscle strength.
Methods: Twenty four highly trained male cyclists age 47.1 ± 5.9 years with a VO2max 59.1 ± 4.03
ml∙kg-1∙min-1 volunteered in the present study. A pre-to post-test experimental design was applied,
with a twelve week training intervention. The subjects were randomised into two groups, one low
cadence training group (Lctg) and one control training group (Ctg). For the Lctg group, low cadence
training was performed as 5 intervals of 6 minutes work periods at 40 RPM and between 72-82
%HRmax, which was performed twice a week in addition to their usual training programme. The Ctg
group performed their usual training programme and in addition an equal amount of extra training
(at freely chosen cadence) per week as the Lctg with a heart rate of 72-82 % of HRmax. At pre and
post-tests; VO2max, lactate threshold, 30 minutes time-trial test and maximal leg strength, was
tested. Tests were performed on a Velotron bike (Dynafit Pro, Racermate USA). Heart rate was
measured using a Polar RS 800 CX, (Kempele, Finland). Oxygen consumption was measured using a
Jaeger Oxycon Pro in mixing chamber mode (Jaeger, Germany). Lactate was measured using a
Lactate Scout (Biosen, Germany) device.
Results: There were no significant improvements in maximal leg strength. The Ctg had a significantly
improvement in VO2max, lactate threshold work rate and VO2. The 30 minutes maximal cycling test
revealed that the Ctg increased the average performance significantly from 278 W to 295 W and the
VO2 utilisation during this test from 52.8 to 54.7 ml∙kg-1∙min-1. Thus, the Lctg group showed no
effect of the training period on any parameter.
Discussion: The present study demonstrates that 12 weeks of low cadence cycling seems to have no
effect on 30 min maximal cycling, VO2max, lactate threshold or muscle strength. In fact, an equal
amount x intensity (training load) of endurance training at freely chosen cadence seems to have
more beneficial effects on VO2max, lactate threshold parameters and a 30 min time-trial
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