Correction: Relationship between Force-Velocity Profiles and 1,500-m Ergometer Performance in Young Rowers
Caroline GirouxHugo MaciejewskiAmal Ben-AbdessamieFrédéric ChorinJulien LardySébastien RatelAbderrahmane Rahmani
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Correction to: Relationship between Force-Velocity Profiles and 1,500-m Ergometer Performance in Young RowersInt J Sports Med 2017; 38(13): 992-1000DOI: 10.1055/s-0043-117608Keywords:
Bicycle ergometer
Cycle ergometer
A new reversible ergometer for either positive (concentric) or negative (eccentric) muscle work is presented. The construction of the ergometer allows either arm or leg work to be performed. As the ergometer is reversible, a subject can work either forwards or backwards with his arms or legs. This is of importance when the effect of positive and negative work on various physiological parameters is compared.
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Thirteen male competitive swimmers (mean age 14.7 years) were studied during maximal exercise on a treadmill, cycle ergometer and biokinetic swim bench. The mean maximal oxygen uptake values elicited (treadmill = 66.5 ml.kg-1 min.-1; cycle ergometer = 61.0 ml.kg.-1 min.-1; biokinetic swimbench = 44.5 ml.kg.-1 min.-1) were higher than those reported elsewhere for children not engaged in intensive training and even when compared with other groups of similarly aged swimmers the values exhibited were some of the highest recorded. The results were directionally similar to those of other studies comparing treadmill and cycle ergometer exercise with the mean maximal oxygen uptake on the cycle ergometer 9% lower than that on the treadmill. There is no other study with which to compare swim bench values but the majority of maximal values were consistently and significantly lower than those achieved on the other ergometers. The swimmers rank within the group was minimally affected by the type of ergometer on which the measurement was made.
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The effects on SBP, DBP and HR of gripping the cycle ergometer handlebar during dynamic cycle ergometry were evaluated in 39 healthy males. Heart rate, SBP and DBP were measured at 150 Watt power load while gripping and not gripping the handlebar of a cycle ergometer. The sequence of gripping first or second was randomized. No differences in SBP, DBP or HR were shown under the two treatments. For submaximal cycle ergometry the influence of static handgrip on the handlebar does not seem to have a significant influence on SBP, DBP or HR response to dynamic exercise.
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Background: Cycle ergometer training (CET) has been shown to improve exercise performance of the quadriceps muscles in patients with COPD, and inspiratory muscle training (IMT) may improve the pressure-generating capacity of the inspiratory muscles. However, the effects of combined CET and IMT remain unclear and there is a lack of comprehensive assessment. Materials and methods: Eighty-one patients with COPD were randomly allocated to three groups: 28 received 8 weeks of CET + IMT (combined training group), 27 received 8 weeks of CET alone (CET group), and 26 only received 8 weeks of free walking (control group). Comprehensive assessment including respiratory muscle strength, exercise capacity, pulmonary function, dyspnea, quality of life, emotional status, nutritional status, and body mass index, airflow obstruction, and exercise capacity index were measured before and after the pulmonary rehabilitation program. Results: Respiratory muscle strength, exercise capacity, inspiratory capacity, dyspnea, quality of life, depression and anxiety, and nutritional status were all improved in the combined training and CET groups when compared with that in the control group ( P <0.05) after pulmonary rehabilitation program. Inspiratory muscle strength increased significantly in the combined training group when compared with that in the CET group (ΔPI max [maximal inspiratory pressure] 5.20±0.89 cmH 2 O vs 1.32±0.91 cmH 2 O; P <0.05). However, there were no significant differences in the other indices between the two groups ( P >0.05). Patients with weakened respiratory muscles in the combined training group derived no greater benefit than those without respiratory muscle weakness ( P >0.05). There were no significant differences in these indices between the patients with malnutrition and normal nutrition after pulmonary rehabilitation program ( P >0.05). Conclusion: Combined training is more effective than CET alone for increasing inspiratory muscle strength. IMT may not be useful when combined with CET in patients with weakened inspiratory muscles. Nutritional status had slight impact on the effects of pulmonary rehabilitation. A comprehensive assessment approach can be more objective to evaluate the effects of combined CET and IMT. Keywords: chronic obstructive pulmonary disease, pulmonary rehabilitation, cycle ergometer, inspiratory muscle training, comprehensive assessment, exercise performance
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Purpose: A choice between a running or bicycle ergometer is not possible in every labora-tory. Significant differences may appear in measuring results of ergometers with different load specificity. The objective of our paper is to determine a difference in values measured during a spiroergometry test on a bicycle ergometer and a running ergometer in adolescent endurance sportsmen, with different specializations, for mountain cyclists and middle- and long-distance runners. Methods:The experiment involved 10 cyclists and 10 runnersat the national top level. The cyclists and runners were dividedin two groups: one half of the tested group completed the first test on a running ergometer and the other on a bicycle ergometer. The test on the other ergometer was taken after three days’ time. The progressed load test up to “vita maxima” was used for both ergometers. The examined parameters included values of VO2max, VT, VE, BF, HRmax and WRmax. Results were evaluated in terms of both statistical and substantial significance. Statistical significance was ascertained by means of t-test at the level α = 0.05. Cohen’s d was used to evaluate substantial significance. Results: The results showed substantially significant differences for runners in all examined pa-rameters. Asubstantially significant difference in measurement results of cyclists was discovered for parameters VO2max, V , VE and WRmax. In runners, the mean of values for the most important parameter VO2max reached 60.6 ± 4.24 ml.min-1.kg-1 when running, and 56.0 ± 5.34 ml.min-1.kg-1 when cycling; values reached by cyclists were 56.6 ± 5.16 ml.min-1.kg-1 when running, and 61.30 ± 4.47 ml.min-1.kg-1 when cycling. The only parameter not to correspond with the sportsmen’s specializations was VT, as it revealed larger values on a bicycle also for runners. Conclusion: Results confirmed the correspondence between the load specificity according to the ergometer selected and the specificity of sports pursued. It was proven that it is nec-essary to select a suitable type of appliance for determining VO2max according to the sports pursued.
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Nine male subjects performed submaximal and maximal exercise on a cycle ergometer while sitting on the saddle or on a chair behind the cycle ergometer with the legs horizontal. Data for oxygen uptake, respiratory variables, heart rate, and systolic blood pressure during exercise showed that there are no essential differences between these two positions.
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The purpose of this study was to investigate the effects of low intensity exercise with Bicycle Ergometer on the Platelet in the cerebrovrovascular Diseases Patients. 14 Patients selected as subjects. The experimental Patients were trained about 25minuten by bicycl ergometer. The date were analyzed with frequency, independant t-test, paired t-test using SPSS PC(ver.10.0). The results of this study were as follows: After a 25minuten bicycl ergometer training, Platelet count was increased(p<0.05). After a 25minuten bicycl ergometer training, Mean platelet volume was decreased(p<0.05).
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MCElveen, G. W.; Bell, G. H.; Herbert, W. G. FACSM; Sebolt, R. R.; Sebolt, D. R. Author Information
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