Reproducibility of incremental maximal cycle ergometer tests in healthy recreationally active subjects

2015 ◽  
Vol 37 (2) ◽  
pp. 173-182 ◽  
Author(s):  
Kasper Dideriksen ◽  
Ulla Ramer Mikkelsen
Keyword(s):  
Cycle Ergometer ◽  
Maximal Cycle

Maximal heart rates and plasma lactate concentrations observed in middle-aged men and women during a maximal cycle ergometer test

1993 ◽  
Vol 66 (3) ◽  
pp. 281-284 ◽  
Author(s):  
A. M. P. M. Bovens ◽  
M. A. van Baak ◽  
J. G. P. M. Vrencken ◽  
J. A. G. Wijnen ◽  
F. T. J. Verstappen
Keyword(s):  
Cycle Ergometer ◽  
Plasma Lactate ◽  
Middle Aged ◽  
Men And Women ◽  
Heart Rates ◽  
Cycle Ergometer Test ◽  
Ergometer Test ◽  
Maximal Cycle

Differentiated Perceptions of Exertion: Part II. Relationship to Local and Central Physiological Responses

1979 ◽  
Vol 49 (3) ◽  
pp. 691-697 ◽  
Author(s):  
Robert J. Robertson ◽  
Robert L. Gillespie ◽  
Jean McCarthy ◽  
Kenneth D. Rose
Keyword(s):  
Lactic Acid ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Cycle Ergometer ◽  
Ratings Of Perceived Exertion ◽  
Pedalling Rate ◽  
Ergometer Exercise ◽  
Physiological Adjustments ◽  
Male Subjects ◽  
Maximal Cycle

Differentiated ratings of perceived exertion in the legs and chest were compared to local and central physiological adjustments during sub-maximal cycle ergometer exercise. 50 male subjects performed three separate cycle ergometer tests. Power output was held constant at 840 kpm/min., while pedalling rate was randomly set at 40, 60, or 80 rpm. Differentiated reports of exertion from the legs were considered to be local signals and reports from the chest to be central signals. Ratings of exertion for the legs, chest and over-all body were each significantly higher at 40 rpm than 60 or 80 rpm. Heart rate, oxygen uptake, ventilation and respiratory rate were also higher at 40 rpm. Lactic acid, pH, and pCOs were similar between pedalling rates. Lactic acid did not operate differentially to influence local perceptual signals from the legs. Central measures of respiratory and aerobic metabolic adjustments were consistent with the more intense regional report of chest exertion at 40 rpm.

scholarly journals Closure of outpatient cardiac rehabilitation during the first COVID-19 lockdown in Austria in spring 2020 resulted in deteriorating physical exercise capacity: a mixed-methods study

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
S T Kulnik ◽  
M Sareban ◽  
I Hoeppchen ◽  
S Droese ◽  
A Egger ◽  
...  
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Cardiovascular Risk ◽  
Exercise Training ◽  
Physical Fitness ◽  
Exercise Capacity ◽  
Exercise Performance ◽  
Cycle Ergometer ◽  
Mixed Methods Study ◽  
Maximal Cycle

Abstract Background Group-based cardiac rehabilitation (CR) has inevitably been disrupted by COVID-19-related public health measures, increasing the risk of deterioration in modifiable risk factors for patients with cardiovascular disease (CVD). Purpose To examine the impact of CR closure during the first COVID-19-related national lockdown in Austria in spring 2020 on patients' maintenance of physical activity, physical fitness levels, and cardiovascular risk profile; and to describe the patient experience of lack of group-based CR training due to COVID-19. Methods This mixed-methods study recruited patients from an outpatient CR centre in Austria during summer 2020. Eligibility criteria were regular attendance at weekly group-based exercise training at the centre until the COVID-19-related lockdown in March 2020; pre-lockdown completion of a maximal cycle ergometer test; no contraindications for maximal exercise testing; and no new complaints limiting exercise performance. Participants underwent post-lockdown quantitative assessment of physical fitness (maximal cycle ergometer testing, submaximal cycle ergometer training session at individual pre-lockdown settings) and cardiovascular risk status. These were compared with pre-lockdown data from medical records. Participants gave qualitative interviews about their experience of maintaining exercise during lockdown. Interviews were audio-recorded, transcribed, coded, and interpreted using framework analysis. Results Twenty-eight (57%) of 49 eligible patients were recruited, 1 withdrew, and 27 completed all study procedures. Two participants were excluded from analysis of physical fitness data, due to subsequent diagnosis of new complaints limiting exercise performance. Mean (SD) age was 69 (7.4) years. Six (22%) were female. Median (IQR) time since first CVD event was 8 (5.5, 9) years. In maximal ergometer testing, 14 (56%) had deteriorated, 10 (40%) were unchanged, and 1 (4%) had improved post-lockdown. At group level, power was significantly reduced (maximal ergometer testing, submaximal ergometer training), whereas CVD risk factors remained unchanged from pre- to post-lockdown (table 1). Qualitative analysis corroborated the negative impact of the closure of CR classes (table 2). Conclusions This patient cohort was heterogeneous with respect to physical activity levels and exercise capacity, yet overall motivated and experienced in exercise training, having regularly attended training sessions at the centre before the lockdown. Despite individually seeking out alternative exercise options during lockdown, group average exercise capacity deteriorated even in this motivated and exercise-conscious group. This highlights the importance of providing group-based opportunities for supervised high intensity training for patients who engage well in such a setting, and the detrimental impact of disruption to this type of CR service. FUNDunding Acknowledgement Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ludwig Boltzmann Gesellschaft COVID-19 Support Measure: Open Innovation in Science (OIS) Research Enrichment Fund

scholarly journals Reliability of a Progressive Maximal Cycle Ergometer Test to Assess Peak Oxygen Uptake in Children With Mild to Moderate Cerebral Palsy

2014 ◽  
Vol 94 (1) ◽  
pp. 121-128 ◽  
Author(s):  
Merel-Anne Brehm ◽  
Astrid C.J. Balemans ◽  
Jules G. Becher ◽  
Annet J. Dallmeijer
Keyword(s):  
Cerebral Palsy ◽  
Oxygen Uptake ◽  
Cardiorespiratory Fitness ◽  
Peak Oxygen Uptake ◽  
Cycle Ergometer ◽  
Small Sample ◽  
Cycle Ergometer Test ◽  
Ergometer Test ◽  
Maximal Cycle ◽  
Gmfcs Level

BackgroundRehabilitation research in children with cerebral palsy (CP) is increasingly addressing cardiorespiratory fitness testing. However, evidence on the reliability of peak oxygen uptake (V̇o2peak) measurements, considered the best indicator of aerobic fitness, is not available in this population.ObjectiveThe objective of this study was to establish the reliability of a progressive maximal cycle ergometer test when assessing V̇o2peak in children with mild to moderate CP.DesignRepeated measures were used to assess test-retest reliability.MethodsEligible participants were ambulant, 6 to 14 years of age, and classified as level I, II, or III according to the Gross Motor Function Classification System (GMFCS). Two progressive maximal cycle ergometer tests were conducted (separated by 3 weeks), with the workload increasing every minute in steps of 3 to 11 W, dependent on height and GMFCS level. Reliability was determined by means of the intraclass correlation coefficient (ICC [2,1]) and smallest detectable change (SDC).ResultsTwenty-one children participated (GMFCS I: n=4; GMFCS II: n=12; and GMFCS III: n=5). Sixteen of them (9 boys, 7 girls; GMFCS I: n=3; GMFCS II: n=11; and GMFCS III: n=2) performed 2 successful tests, separated by 9.5 days on average. Reliability for V̇o2peak was excellent (ICC=.94, 95% confidence interval=.83–.98). The SDC was 5.72 mL/kg/min, reflecting 14.6% of the mean.LimitationsThe small sample size did not allow separate analysis of reliability per GMFCS level.ConclusionsIn children with CP of GMFCS levels I and II, a progressive maximal cycle ergometer test to assess V̇o2peak is reliable and has the potential to detect change in cardiorespiratory fitness over time. Further study is needed to establish the reliability of V̇o2peak in children of GMFCS level III.

Cardiovascular fitness and haemodynamic responses to maximal cycle ergometer exercise test in children 6–8 years of age

2013 ◽  
Vol 32 (7) ◽  
pp. 652-659 ◽  
Author(s):  
Niina Lintu ◽  
Tuomo Tompuri ◽  
Anna Viitasalo ◽  
Sonja Soininen ◽  
Tomi Laitinen ◽  
...  
Keyword(s):  
Exercise Test ◽  
Cycle Ergometer ◽  
Cardiovascular Fitness ◽  
Cycle Ergometer Exercise ◽  
Ergometer Exercise ◽  
Maximal Cycle

Reproducibility of incremental maximal cycle ergometer tests in patients with mild to moderate obstructive lung diseases

Lung ◽  
1989 ◽  
Vol 167 (1) ◽  
pp. 129-133 ◽  
Author(s):  
N. J. M. Cox ◽  
J. C. M. Hendriks ◽  
R. A. Binkhorst ◽  
H. T. M. Folgering ◽  
C. L. A. van Herwaarden
Keyword(s):  
Lung Diseases ◽  
Cycle Ergometer ◽  
Obstructive Lung Diseases ◽  
Maximal Cycle
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