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

1992 ◽  
Vol 151 (3) ◽  
pp. 160-166 ◽  
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

Comparison of maximal oxygen uptake values determined by predicted and actual methods

1965 ◽  
Vol 20 (3) ◽  
pp. 509-513 ◽  
Author(s):  
R. G. Glassford ◽  
G. H. Y. Baycroft ◽  
A. W. Sedgwick ◽  
R. B. J. Macnab
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Correlation Coefficients ◽  
Bicycle Ergometer ◽  
Exercise Heart Rate ◽  
Indirect Test ◽  
Physical Fitness Test ◽  
Mean Values ◽  
Fitness Test

Twenty-four male subjects aged 17–33 were given three direct tests of maximal oxygen uptake and one indirect test. The direct tests were those of Mitchell, Sproule, and Chapman (treadmill); Taylor, Buskirk, and Henschel (treadmill); and Åstrand (bicycle ergometer). The indirect test was the Åstrand-Ryhming nomogram (bicycle ergometer) employing heart rate response to submaximal work. In addition, the Johnson, Brouha, and Darling physical fitness test was administered. The two treadmill tests and the indirect test yielded significantly higher mean values than did the direct bicycle test. However no other significant differences in mean values occurred. Correlation coefficients between the various oxygen uptake tests as well as the fitness test were all found to be significant (.62–.83), i.e., greater than zero. No correlation obtained proved to be significantly greater than any other. The results indicate that direct treadmill tests, employing greater muscle mass, yield higher maximal oxygen uptake values (8%) than does the direct bicycle ergometer test. The Åstrand-Ryhming nomogram appears to produce a good estimation of maximal oxygen uptake, in a population unaccustomed to cycling. erobic capacity; exercise; heart rate Submitted on September 17, 1964

scholarly journals Effect Of Endogenous Noradenaline Release On Peak Exercise Heart Rate In Subjects With Chronic Heart Failure Receiving Carvedilol Versus Metoprolol

2004 ◽  
Vol 6 (1) ◽  
Author(s):  
Timothy Vittorio ◽  
Duygu Onat ◽  
Paolo Colombo ◽  
John Stathopoulos ◽  
Cselaj Sulejman ◽  
...  
Keyword(s):  
Heart Failure ◽  
Heart Rate ◽  
Chronic Heart Failure ◽  
Peak Exercise ◽  
Exercise Heart Rate

Peak exercise oxygen uptake during and following long-duration spaceflight

2014 ◽  
Vol 117 (3) ◽  
pp. 231-238 ◽  
Author(s):  
Alan D. Moore ◽  
Meghan E. Downs ◽  
Stuart M. C. Lee ◽  
Alan H. Feiveson ◽  
Poul Knudsen ◽  
...  
Keyword(s):  
Heart Rate ◽  
Linear Regression ◽  
Oxygen Uptake ◽  
Mixed Model ◽  
Space Station ◽  
Measured Data ◽  
Peak Exercise ◽  
International Space ◽  
Long Duration ◽  
Gas Fractions

This investigation was designed to measure aerobic capacity (V̇o2peak) during and after long-duration International Space Station (ISS) missions. Astronauts (9 males, 5 females: 49 ± 5 yr, 77.2 ± 15.1 kg, 40.6 ± 6.4 ml·kg−1·min−1 [mean ± SD]) performed peak cycle tests ∼90 days before flight, 15 days after launch, every ∼30 days in-flight, and on recovery days 1 (R + 1), R + 10, and R + 30. Expired metabolic gas fractions, ventilation, and heart rate (HR) were measured. Data were analyzed using mixed-model linear regression. The main findings of this study were that V̇o2peak decreased early in-flight (∼17%) then gradually increased during flight but never returned to preflight levels. V̇o2peak was lower on R + 1 and R + 10 than preflight but recovered by R + 30. Peak HR was not different from preflight at any time during or following flight. A sustained decrease in V̇o2peak during and/or early postflight was not a universal finding in this study, since seven astronauts were able to attain their preflight V̇o2peak levels either at some time during flight or on R + 1. Four of these astronauts performed in-flight exercise at higher intensities compared with those who experienced a decline in V̇o2peak, and three had low aerobic capacities before flight. These data indicate that, while V̇o2peak may be difficult to maintain during long-duration ISS missions, aerobic deconditioning is not an inevitable consequence of long-duration spaceflight.

scholarly journals Effect of endogenous noradenaline release on peak exercise heart rate in subjects with chronic heart failure receiving carvedilol versus metoprolol

2004 ◽  
Vol 10 (4) ◽  
pp. S48
Author(s):  
Timothy J. Vittorio ◽  
Duygu Onat ◽  
Paolo C. Colombo ◽  
John Stathopoulos ◽  
Cselaj Sulejman ◽  
...  
Keyword(s):  
Heart Failure ◽  
Heart Rate ◽  
Chronic Heart Failure ◽  
Peak Exercise ◽  
Exercise Heart Rate

scholarly journals Fitting a Single-Phase Model to the Post-Exercise Changes in Heart Rate and Oxygen Uptake

2010 ◽  
pp. 357-362
Author(s):  
R Stupnicki ◽  
T Gabryś ◽  
U Szmatlan-Gabryś ◽  
P Tomaszewski
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Single Phase ◽  
Exercise Duration ◽  
Cycle Ergometer ◽  
Exercise Heart Rate ◽  
Post Exercise ◽  
Logit Transformation ◽  
Recovery Times ◽  
Rate Of Recovery

The kinetics of post-exercise heart rate (HR) and oxygen consumption (EPOC) was studied in 10 elite cyclists subjected to four laboratory cycle ergometer maximal exercises lasting 30, 90, 180 or 360 s. Heart rate and oxygen uptake (VO2) were recorded over a period of 6 min after the exercise. By applying the logit transformation to the recorded variables and relating them to the decimal logarithm of the recovery time, uniform single-phase courses of changes were shown for both variables in all subjects and exercises. This enabled computing half-recovery times (t½) for both variables. Half-time for VO2 negatively correlated with square root of exercise duration (within-subject r=–0.629, p<0.001), the total post-exercise oxygen uptake till t½ was thus constant irrespectively of exercise intensity. The method is simple and enables reliable comparisons of various modes of exercise with respect to the rate of recovery.

Sign in / Sign up

Export Citation Format

Share Document