Heart rate and pulmonary oxygen uptake response in professional badminton players: comparison between on-court game simulation and laboratory exercise testing

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.

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Relationship between blood pressure response during hemodialysis and exercise tolerance or heart rate recovery measured using cardio-pulmonary exercise testing in maintenance hemodialysis patients

Renal Replacement Therapy ◽

10.1186/s41100-019-0256-1 ◽

2020 ◽

Vol 6 (1) ◽

Author(s):

Hiroki Yabe ◽

Kenichi Kono ◽

Ryota Shiraki ◽

Akiho Masuda ◽

Yoshifumi Moriyama ◽

...

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Oxygen Uptake ◽

Exercise Testing ◽

Exercise Tolerance ◽

Blood Pressure Response ◽

Heart Rate Recovery ◽

Cardiopulmonary Exercise Testing ◽

Pressure Response ◽

Exercise Intolerance

Abstract Background This study investigated the association between the blood pressure response during hemodialysis (HD) and exercise tolerance or heart rate recovery (HRR) measured with cardiopulmonary exercise testing (CPX). Methods The study enrolled 23 patients who had been undergoing 4-h regular maintenance HD. The maximum workload (Loadpeak), peak oxygen uptake (VO2peak), workload and oxygen uptake at the anaerobic threshold (LoadAT and VO2AT, respectively), and HRR were measured with CPX. The average systolic blood pressure during HD (SBPav) was measured, and the number of times the SBP was less than 100 mmHg was determined in the 2-week period after CPX. Results The SBPav showed a significant correlation with LoadAT (r = 0.46) and Loadpeak (r = 0.43, p < 0.05). The number of times the SBP was less than 100 mmHg showed a significant correlation with the HRR (r = − 0.44, p < 0.05). Conclusion Exercise intolerance and HRR in HD patients may be associated with blood pressure instability during HD.

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Heart rate and oxygen uptake response to exercise in children with low peak exercise heart rate

European Journal of Pediatrics ◽

10.1007/bf01954374 ◽

1992 ◽

Vol 151 (3) ◽

pp. 160-166 ◽

Cited By ~ 17

Author(s):

I. M. Schulze-Neick ◽

H. U. Wessel ◽

M. H. Paul

Keyword(s):

Heart Rate ◽

Oxygen Uptake ◽

Peak Exercise ◽

Exercise Heart Rate ◽

Response To Exercise ◽

Oxygen Uptake Response

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The influence of a six-week, high-intensity games intervention on the pulmonary oxygen uptake kinetics in prepubertal obese and normal-weight children

Applied Physiology Nutrition and Metabolism ◽

10.1139/apnm-2015-0051 ◽

2015 ◽

Vol 40 (10) ◽

pp. 1012-1018 ◽

Cited By ~ 6

Author(s):

Melitta A. McNarry ◽

Danielle Lambrick ◽

Nicole Westrupp ◽

James Faulkner

Keyword(s):

Oxygen Uptake ◽

Phase Ii ◽

High Intensity ◽

Exercise Intervention ◽

Normal Weight ◽

Obese Children ◽

Post Intervention ◽

Prepubertal Children ◽

Pulmonary Oxygen Uptake ◽

Oxygen Uptake Response

The pulmonary oxygen uptake response is deleteriously influenced by obesity in prepubertal children, as evidenced by a slower phase II response. To date, no studies have investigated the ability of an exercise intervention to ameliorate this. The objective of the study was to investigate the influence of a 6-week, high-intensity, games-orientated intervention on the oxygen uptake kinetic response of prepubertal obese and normal-weight children during heavy-intensity exercise. Thirteen normal-weight and 15 obese children participated in a twice-weekly exercise intervention involving repeated bouts of 6-min high-intensity, games-orientated exercises followed by 2 min of recovery. Sixteen normal-weight and 11 obese children served as a control group. At baseline and post-intervention, each participant completed a graded-exercise test to volitional exhaustion and constant work-rate, heavy-intensity exercise. Post-intervention, obese children demonstrated a reduced phase II τ (pre-intervention: 30 ± 8 cf. post-intervention: 24 ± 7 s), mean response time (pre-intervention: 50 ± 10 cf. post-intervention: 38 ± 9 s) and phase II amplitude (pre-intervention: 1.51 ± 0.30 cf. post-intervention: 1.34 ± 0.27 L·min−1). No changes were evident in the normal-weight children. In conclusion, the present findings demonstrate that a 6-week, high-intensity intervention can have a significant positive impact on the dynamic oxygen uptake response of obese prepubertal children.

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