The relationship between oxygen uptake reserve and heart rate reserve is affected by intensity and duration during aerobic exercise at constant work rate

2011 ◽  
Vol 36 (6) ◽  
pp. 839-847 ◽  
Author(s):  
Felipe A. Cunha ◽  
Adrian W. Midgley ◽  
Walace D. Monteiro ◽  
Felipe K. Campos ◽  
Paulo T.V. Farinatti
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Exercise Testing ◽  
Exercise Intensity ◽  
Maximal Exercise ◽  
Work Rate ◽  
Heart Rate Reserve ◽  
Constant Work Rate ◽  
The Stability ◽  
The Relationship

The relationship between the percentage of heart rate reserve (%HRR) and percentage of oxygen uptake reserve (%VO2R) has been recommended for prescribing aerobic exercise intensity. However, this relationship was derived from progressive maximal exercise testing data, and the stability of the relationship during prolonged exercise at a constant work rate has not been established. The main aim of this study was to investigate the stability of the %VO2R–%HRR relationship during prolonged treadmill exercise bouts performed at 3 different constant work rates. Twenty-eight men performed 4 exercise tests: (i) a ramp-incremental maximal exercise test to determine maximal heart rate (HRmax) and maximal oxygen uptake (VO2max) and (ii) three 40-min exercise bouts at 60%, 70%, and 80% VO2R. HR and VO2 significantly increased over time and were influenced by exercise intensity (p < 0.001 and p = 0.004, respectively). A 1:1 relationship between %HRR and %VO2R, and between %HRR and %VO2max, was not observed, with mean differences of 8% (t = 5.2, p < 0.001) and 6% (t = 4.8, p < 0.001), respectively. The VO2 values predicted from the ACSM running equation were all significantly higher than the observed VO2 values (p < 0.001 for all comparisons), whereas a difference for HR was observed only for the tenth min of exercise at 80% VO2R (p = 0.041). In conclusion, the main finding of this study was that the %HRR–%VO2R relationship determined by linear regression, obtained from progressive maximal exercise testing, did not apply to prolonged treadmill running performed at 3 work rates.

scholarly journals Time Course Changes in Confirmed ‘True’ VO2max After Individualized and Standardized Training

2019 ◽  
Vol 03 (02) ◽  
pp. E32-E39 ◽  
Author(s):  
Ryan Weatherwax ◽  
Nigel Harris ◽  
Andrew E. Kilding ◽  
Lance Dalleck
Keyword(s):  
Heart Rate ◽  
Exercise Training ◽  
Exercise Intensity ◽  
Time Course ◽  
Maximal Exercise ◽  
Ventilatory Threshold ◽  
Maximal Oxygen Consumption ◽  
Heart Rate Reserve ◽  
Significant Difference ◽  
Course Changes

AbstractThis study sought to examine time course changes in maximal oxygen consumption (VO2max) confirmed with verification testing following 12 weeks of standardized vs. individualized exercise training. Participants (N=39) were randomly allocated to differing exercise intensity prescription groups: ventilatory threshold (individualized) or % heart rate reserve (standardized). At baseline, 4, 8, and 12 weeks, participants completed maximal exercise testing with a verification protocol to confirm ‘true VO2max.’ VO2max in the standardized group changed from 24.3±4.6 ml·kg−1·min−1 at baseline to 24.7±4.6, 25.9±4.7, and 26.0±4.2 ml·kg−1·min−1 at week 4, 8, and 12, respectively, with a significant difference (p<0.05) in VO2max at week 8 and 12 compared to baseline. The individualized group had increases in VO2max from online 2 9.5±7.5 ml·kg−1·min−1 at baseline to 30.6±8.4, 31.4±8.4, and 32.8±8.6 ml·kg−1·min−1 at week 4, 8, and 12, respectively. In the individualized group, there were significant differences (p<0.05) in VO2max from baseline to week 8 and 12 and a significant increase in VO2max from week 8 to 1 online 2. Although not statistically significant, our preliminary data demonstrates a more rapid and potent improvement in VO2max when exercise intensity is individualized. This is the first investigation to employ use of the verification procedure to confirm ‘true VO2max’ changes following exercise training using ventilatory thresholds.

Gas Exchange Anaerobic Threshold: Implications for Exercise Prescription in Children

1992 ◽  
Vol 4 (4) ◽  
pp. 360-366 ◽  
Author(s):  
Timothy R. McConnell ◽  
Jean H. Haas ◽  
Nancy C. Conlin
Keyword(s):  
Heart Rate ◽  
Gas Exchange ◽  
Oxygen Uptake ◽  
Anaerobic Threshold ◽  
Exercise Intensity ◽  
Exercise Prescription ◽  
Maximal Heart Rate ◽  
Heart Rate Reserve ◽  
Current Population

Thirty-eight children (mean age 12.2 ±3.6 yrs) were tested to (a) compare the training heart rate (HR) and oxygen uptake (V̇O2) computed from commonly used exercise prescription methods to the heart rate (HRAT) and V̇O2 (ATge) at the gas exchange anaerobic threshold, (b) compute the range of relative HRs and V̇O2s (% HRmax and % V̇O2max, respectively) at which the ATge occurred, and (c) discuss the implications for prescribing exercise intensity. The ATge occurred at a V̇O2 of 20.9 ml · kg−1 · min−1 and an HR of 129 beats·min−1. The training HR and V̇O2 computed using 70 and 85% HRmax, 70% of the maximal heart rate reserve (HRR), and 57 and 78% V·O2max, were significantly different (p<.05) from their corresponding ATge values. To compute training % HRmax, % V̇O2max, and % HRR values that would not significantly differ from the ATge, then 68% HRmax, 48% V̇O2max, and 41% HRR would need to be used for the current population.

Effect Of Heat Stress On The Relationship Between Heart Rate Reserve And Oxygen Uptake Reserve

2015 ◽  
Vol 47 ◽  
pp. 539
Author(s):  
Adrian W. Midgley ◽  
Felipe A. Cunha ◽  
Helen Jones ◽  
Lars R. McNaughton ◽  
Paulo T.V. Farinatti
Keyword(s):  
Heart Rate ◽  
Heat Stress ◽  
Oxygen Uptake ◽  
Heart Rate Reserve ◽  
The Relationship

COUNTERPOINT: Theoretical and Empirical Basis for Equating Heart Rate Reserve with V̇o2 Reserve

2021 ◽  
Vol 10 (3) ◽  
pp. 97-101
Author(s):  
David P. Swain ◽  
Barry A. Franklin
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Cardiorespiratory Fitness ◽  
Aerobic Capacity ◽  
Sports Medicine ◽  
Maximal Exercise ◽  
Heart Rate Reserve ◽  
Empirical Basis ◽  
Relationship Of ◽  
The Relationship

ABSTRACT In 1998, the American College of Sports Medicine recommended the use of % heart rate reserve (HRR) and % oxygen consumption reserve (V̇o2R) for providing equivalent exercise intensities based on limited research regarding the relationship of HR and V̇o2 from rest to maximal exercise. It further emphasized that the percentage of aerobic capacity, or %V̇o2max, does not provide equivalent intensities to %HRR and that this discrepancy is greater for individuals with lower levels of cardiorespiratory fitness, especially at low exercise intensities. This point/counterpoint examines additional research to evaluate these relationships.

INFLUENCE OF AEROBIC EXERCISE TRAINING ON THE RELATIONSHIP BETWEEN OXYGEN UPTAKE AND HEART RATE RESERVE IN THE ELDERLY

1992 ◽  
Vol 24 (Supplement) ◽  
pp. S186 ◽  
Author(s):  
J. E. Graves ◽  
L. B. Panton ◽  
M. L. Pollock ◽  
L. Garzarella ◽  
J. F. Carroll ◽  
...  
Keyword(s):  
Heart Rate ◽  
Exercise Training ◽  
Oxygen Uptake ◽  
Aerobic Exercise ◽  
The Elderly ◽  
Aerobic Exercise Training ◽  
Heart Rate Reserve ◽  
The Relationship

Understanding cognitive performance during exercise in Reserve Officers’ Training Corps: establishing the executive function-exercise intensity relationship

2020 ◽  
Vol 129 (4) ◽  
pp. 846-854
Author(s):  
Brandon L. Stone ◽  
Madison Beneda-Bender ◽  
Duncan L. McCollum ◽  
Jongjoo Sun ◽  
Joseph H. Shelley ◽  
...  
Keyword(s):  
Heart Rate ◽  
Executive Function ◽  
Executive Functioning ◽  
Exercise Intensity ◽  
Cognitive Change ◽  
Heart Rate Reserve ◽  
Graded Exercise ◽  
The Brain ◽  
Training Corps ◽  
Reserve Officers Training Corps

The executive functioning aspect of cognition was evaluated during graded exercise in Reserve Officers’ Training Corps cadets. Executive function declined at exercise intensities of ≥80% of heart rate reserve. The decline in executive function was coupled with declines in the oxygenation of the prefrontal cortex, the brain region responsible for executive functioning. These data define the executive function-exercise intensity relationship and provide evidence supporting the reticular activation hypofrontality theory as a model of cognitive change.

Maximal Oxygen Uptake and Daily Physical Activity in 7- to 12-Year-Old Boys

1993 ◽  
Vol 5 (4) ◽  
pp. 357-366 ◽  
Author(s):  
Hazzaa M. Al-Hazzaa ◽  
Mohammed A. Sulaiman
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Open Circuit ◽  
Daily Physical Activity ◽  
Activity Level ◽  
Activity Levels ◽  
School Time ◽  
The Relationship

The present study examined the relationship between maximal oxygen uptake (V̇O2max) and daily physical activity in a group of 7- to 12-year-old boys. V̇O2max was assessed through the incremental treadmill test using an open circuit system. Physical activity level was obtained from heart rate telemetry outside of school time for 8 hrs during weekdays and during 40 min of physical education classes. The findings indicated that the absolute value of V̇O2max increased with age, while relative to body weight it remained almost the same across age, with a mean of 48.4 ml · kg−1 · min−1. Moreover, heart rate telemetry showed that the boys spent a limited amount of time on activities that raise the heart rate to a level above 160 bpm (an average of 1.9%). In addition, V̇O2max was found to be significantly related to the percentage of time spent at activity levels at or above a heart rate of 140 bpm, but not with activity levels at or above a heart rate of 160 bpm.

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