scholarly journals Validity of dynamical analysis to characterize heart rate and oxygen consumption during effort tests

2020 ◽  
Author(s):  
D. Mongin ◽  
C. Chabert ◽  
A. Uribe Caparros ◽  
A. Collado ◽  
E. Hermand ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Dynamical Analysis ◽  
Performance Indices ◽  
Graded Exercise Testing ◽  
Graded Exercise ◽  
Before And After ◽  
Effort Tests ◽  
Good Characterization

ABSTRACTPerformance is usually assessed by simple indices stemming from cardiac and respiratory data measured during graded exercise test. The goal of this study is to test the interest of using a dynamical analysis of these data. Therefore, two groups of 32 and 14 athletes from two different cohorts performed two different graded exercise testing before and after a period of training or deconditioning. Heart rate (HR) and oxygen consumption (VO2) were measured. The new dynamical indices were the value without effort, the characteristic time and the amplitude (gain) of the HR and VO2 response to the effort. The gain of HR was moderately to strongly associated with other performance indices, while the gain for VO2 increased with training and decreased with deconditioning with an effect size slightly higher than VO2 max. Dynamical analysis performed on the first 2/3 of the effort tests showed similar patterns than the analysis of the entire effort tests, which could be useful to assess individuals who cannot perform full effort tests. In conclusion, the dynamical analysis of HR and VO2 obtained during effort test, especially through the estimation of the gain, provides a good characterization of physical performance, robust to less stringent effort test conditions.

scholarly journals Validity of dynamical analysis to characterize heart rate and oxygen consumption during effort tests

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
D. Mongin ◽  
C. Chabert ◽  
A. Uribe Caparros ◽  
A. Collado ◽  
E. Hermand ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Dynamical Analysis ◽  
Effort Tests

Oxygen Consumption and Heart Rate Responses in Graded Exercise during Long-Duration Space Flight

2010 ◽  
Vol 42 ◽  
pp. 515
Author(s):  
Alan D. Moore ◽  
Stuart M.C. Lee ◽  
Frank A. McCleary ◽  
Simon N. Evetts ◽  
Alan H. Feiveson
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Space Flight ◽  
Long Duration ◽  
Graded Exercise

scholarly journals Lifestyle Intervention Improves Heart Rate Recovery from Exercise in Adults with Type 2 Diabetes: Results from the Look AHEAD Study

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Paul M. Ribisl ◽  
Sarah A. Gaussoin ◽  
Wei Lang ◽  
Judy Bahnson ◽  
Stephanie A. Connelly ◽  
...  
Keyword(s):  
Heart Rate ◽  
Weight Loss ◽  
Exercise Intervention ◽  
Heart Rate Recovery ◽  
Look Ahead ◽  
Graded Exercise Testing ◽  
Graded Exercise ◽  
Mean Fitness ◽  
The Look

The primary aims of this paper were (1) to evaluate the influence of intensive lifestyle weight loss and exercise intervention (ILI) compared with diabetes support and education (DSE) upon Heart Rate Recovery (HRR) from graded exercise testing (GXT) and (2) to determine the independent and combined effects of weight loss and fitness changes upon HRR. In 4503 participants (45–76 years) who completed 1 year of intervention, HRR was measured after a submaximal GXT to compare the influence of (ILI) with (DSE) upon HRR. Participants assigned to ILI lost an average 8.6% of their initial weight versus 0.7% in DSE group (P<0.001) while mean fitness increased in ILI by 20.9% versus 5.8% in DSE (P<0.001). At Year 1, all exercise and HRR variables in ILI improved (P<0.0001) versus DSE: heart rate (HR) at rest was lower (72.8±11.4versus77.7±11.7 b/min), HR range was greater (57.7±12.1versus53.1±12.4 b/min), HR at 2 minutes was lower (89.3±21.8versus93.0±12.1 b/min), and HRR was greater (41.25±22.0versus37.8±12.5 b/min). Weight loss and fitness gain produced significant separate and independent improvements in HRR.

Comparison of on-ice and off-ice graded exercise testing in collegiate hockey players

2010 ◽  
Vol 35 (1) ◽  
pp. 35-39 ◽  
Author(s):  
John J. Durocher ◽  
Angela J. Guisfredi ◽  
Darin T. Leetun ◽  
Jason R. Carter
Keyword(s):  
Heart Rate ◽  
Exercise Testing ◽  
Aerobic Capacity ◽  
Cycle Ergometry ◽  
National Hockey League ◽  
Maximal Heart Rate ◽  
Graded Exercise Testing ◽  
Hockey Players ◽  
Graded Exercise ◽  
Specific Manner

The purpose of this study was to compare lactate thresholds (LT) and maximal aerobic capacities (VO2 max) during sport-specific skating (on ice) and cycle ergometry (off ice) in collegiate hockey players. We hypothesized that VO2 max and LT would be higher on ice. We also sought to determine if on-ice and off-ice VO2 max values were correlated. Twelve collegiate hockey players performed both graded exercise protocols in randomized order to fatigue. Both protocols included 80 s of work during each stage, followed by 40 s of rest to allow for blood lactate sampling. VO2 max was significantly higher on ice (46.9 ± 1.0 mL·kg–1·min–1) than off ice (43.6 ± 0.9 mL·kg–1·min–1; p < 0.05). Maximal heart rate (HRmax) was also higher on ice (192.2 ± 1.8 beats·min–1) than off ice (186.0 ± 1.5 beats·min–1; p < 0.01). LT was drastically higher on ice than off ice as a percentage of VO2 max (85.9% ± 1.9% vs. 69.7% ± 1.3%; p < 0.01) and HRmax (90.1% ± 1.3% vs. 79.4% ± 1.6%; p < 0.01). Finally, no correlation existed between VO2 max values off ice and on ice (r = –0.002; p = 0.99). Our results indicate that off-ice VO2 max and LT are not adequate predictors of on-ice VO2 max and LT in collegiate hockey players. These findings challenge the use of cycle ergometry to assess aerobic capacity at events such as the National Hockey League Entry Draft combine. We suggest that hockey players be tested in a sport-specific manner, regardless of whether those tests are performed on ice or off ice.

Characterization of Activity and Cardiovascular Responses During Surfing in Recreational Male Surfers Between the Ages of 18 and 75 Years Old

2017 ◽  
Vol 25 (2) ◽  
pp. 182-188 ◽  
Author(s):  
Christine L. LaLanne ◽  
Michael S. Cannady ◽  
Joseph F. Moon ◽  
Danica L. Taylor ◽  
Jeff A. Nessler ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Cardiovascular Health ◽  
Age Groups ◽  
Cardiovascular Responses ◽  
Peak Oxygen Consumption ◽  
Activity Levels

Participation in surfing has evolved to include all age groups. Therefore, the purpose of this study was to determine whether activity levels and cardiovascular responses to surfing change with age. Surfing time and heart rate (HR) were measured for the total surfing session and within each activity of surfing (paddling, sitting, wave riding, and miscellaneous). Peak oxygen consumption (VO2peak) was also measured during laboratory-based simulated surfboard paddling on a modified swim bench ergometer. VO2peak decreased with age during simulated paddling (r = –.455, p < .001, n = 68). Total time surfing (p = .837) and time spent within each activity of surfing did not differ with age (n = 160). Mean HR during surfing significantly decreased with age (r = –.231, p = .004). However, surfing HR expressed as a percent of age-predicted maximum increased significantly with age. Therefore, recreational surfers across the age spectrum are achieving intensities and durations that are consistent with guidelines for cardiovascular health.

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