Assessment of Validity and Reliability of the 1-Minute Sit-to-Stand Test to Measure the Heart Rate Response to Exercise in Healthy Children

The chapter Heart Rate Response to Exercise reviews the studies performed to estimate a patient’s maximum predicted heart rate. While the commonly used formula (220 – age), developed in 1971, is easy to remember, it underestimates the actual maximum heart rate in older persons. Studies of large sample size have found the maximum heart rate to be relatively independent of sex and physical fitness but to incrementally decline with age. The decrease with age is less than 1 beat per minute per year, however. A more accurate and recommended formula is [(208) – (0.7)(age)] as developed by Tanaka and colleagues.

Download Full-text

THE HEART RATE RESPONSE TO EXERCISE IN HEALTHY WOMEN AGED 13 TO 88

Southern Medical Journal ◽

10.1097/00007611-199209001-00120 ◽

1992 ◽

Vol 85 (Supplement) ◽

pp. 3S-45

Author(s):

Allen F. Bowyer ◽

Rosemary A. Thomas

Keyword(s):

Heart Rate ◽

Heart Rate Response ◽

Healthy Women ◽

Response To Exercise

Download Full-text

Heart rate control in diabetic rabbits: blunted response to isoproterenol

AJP Endocrinology and Metabolism ◽

10.1152/ajpendo.1988.255.5.e636 ◽

1988 ◽

Vol 255 (5) ◽

pp. E636-E641 ◽

Cited By ~ 3

Author(s):

B. E. Zola ◽

B. Miller ◽

G. L. Stiles ◽

P. S. Rao ◽

E. H. Sonnenblick ◽

...

Keyword(s):

Heart Rate ◽

Heart Rate Response ◽

Atropine Sulfate ◽

Left Ventricular ◽

Heart Weight ◽

Base Line ◽

Baroreceptor Reflexes ◽

Diabetic Rabbits ◽

Alloxan Monohydrate ◽

Response To Exercise

To study the effects of chronic diabetes on heart rate and adrenergic responsiveness we compared unanesthetized diabetic rabbits, 10-13 mo after alloxan monohydrate injection, to age-matched controls. There were no significant differences found between groups for body or heart weight. Both resting and intrinsic heart rate (the latter obtained after atropine sulfate and propranolol HCl) were similar. In addition, serum and left ventricular epinephrine and norepinephrine concentrations as well as left ventricular beta-receptor density and affinity were unchanged in diabetic animals. Heart rate responses to isoproterenol were blunted in diabetics at the three highest doses. Base-line mean blood pressure was modestly lower in diabetic rabbits, and parallel declines in pressure for both groups were observed in response to isoproterenol. The diminished heart rate response to isoproterenol in diabetic rabbits may be due to diminished myocardial sensitivity to catecholamines, possibly combined with altered baroreceptor reflexes. These experiments may provide an explanation for the blunted heart rate response to exercise described in human diabetics.

Download Full-text

Abnormal heart rate response to exercise in vasospastic angina: Pathophysiologic mechanism in the provocation of coronary spasm

American Heart Journal ◽

10.1016/0002-8703(84)90618-5 ◽

1984 ◽

Vol 108 (2) ◽

pp. 316-326 ◽

Cited By ~ 5

Author(s):

Iwao Sato ◽

Katsuro Shimomura ◽

Yasuhiro Hasegawa ◽

Tohru Ohe ◽

Mokuo Matsuhisa ◽

...

Keyword(s):

Heart Rate ◽

Heart Rate Response ◽

Coronary Spasm ◽

Vasospastic Angina ◽

Pathophysiologic Mechanism ◽

Response To Exercise

Download Full-text

Effect of lung transplantation on heart rate response to exercise

Heart & Lung ◽

10.1016/j.hrtlng.2015.01.014 ◽

2015 ◽

Vol 44 (3) ◽

pp. 246-250 ◽

Cited By ~ 1

Author(s):

Hilary F. Armstrong ◽

Jose Gonzalez-Costello ◽

Wilawan Thirapatarapong ◽

Ulrich P. Jorde ◽

Matthew N. Bartels

Keyword(s):

Heart Rate ◽

Lung Transplantation ◽

Heart Rate Response ◽

Response To Exercise

Download Full-text

System analysis of heart rate control in man

Journal of Applied Physiology ◽

10.1152/jappl.1976.41.5.790 ◽

1976 ◽

Vol 41 (5) ◽

pp. 790-796 ◽

Cited By ~ 6

Author(s):

I. Sato ◽

Y. Hasegawa ◽

K. Hotta

Keyword(s):

Heart Rate ◽

Weight Function ◽

Rate Control ◽

Cross Correlation ◽

System Analysis ◽

Heart Rate Response ◽

Control Function ◽

Heart Rate Control ◽

Young Males ◽

Response To Exercise

The dynamic property of the heart rate response to exercise was determined and expressed in the frequency domain to establish a method of examiningcardiovascular control function. The response of heart rate to a stimulus was measured at 5-s intervals in nine healthy young volunteers. The stimulusconsisted of several runs of two-step exercise practiced in semirandom sequence for 19 min. The weight function of the system was estimated from autocorrelation function of the input signal and cross-correlation function between the input and output signals. The weight function was transformed into a transfer function and its Bode plot diagram was drawn. From the diagram, four dynamic parameters were determined. These parameters are as follows: Kis a constant showing the theoretical steady-state increment of heart rate,and T1, T2, T3 are time constants. The values obtained in the present experiment with the healthy young males were: K 46.0 +/- 14.6 beats, T1, 2.12 +/- 0.44, T2, 1.12 +/- 0.16, and T3 0.70 +/- 0.07 min.

Download Full-text

Measuring Heart Rate Variability Using Commercially Available Devices in Healthy Children: A Validity and Reliability Study

European Journal of Investigation in Health, Psychology and Education ◽

10.3390/ejihpe10010029 ◽

2020 ◽

Vol 10 (1) ◽

pp. 390-404 ◽

Cited By ~ 1

Author(s):

Kathryn E. Speer ◽

Stuart Semple ◽

Nenad Naumovski ◽

Andrew J. McKune

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Real World ◽

Healthy Children ◽

Validity And Reliability ◽

Short Term ◽

Autonomic Nervous System Activity ◽

Real World Setting ◽

Nervous System Activity ◽

Absolute Reliability

Heart rate variability (HRV) is an accepted method for determining autonomic nervous system activity and cardiovascular risk in various populations. This study assessed the validity and reliability of a commercially available finger photoplethysmography (PPG) system for measuring pediatric HRV in a real-world setting. Sixteen healthy children (4.06 ± 0.58 years) were recruited. The PPG system was compared to the Polar H10 heart rate (HR) sensor validated against ECG (gold standard) for HRV measurement. Seated short-term resting R-R intervals were recorded simultaneously using both systems. Recordings were performed on 3 days at the participants’ school. Paired t-tests, effect sizes and Bland–Altman analyses determined the validity of the PPG system. The relative and absolute reliability of both systems were calculated. No HRV parameters were valid for the PPG system. Polar H10 yielded moderate (0.50–0.75) to good (0.75–0.90) relative reliability with R-R intervals and the standard deviation of instantaneous and continuous R-R variability ratio showing the best results (ICCs = 0.84). Polar H10 displayed better absolute reliability with the root mean square of successive differences, R-R intervals and HR showing the lowest values (TEM% < 12%). The use of the Polar H10 and not the PPG system is encouraged for HRV measurement of young children in an educational real-world setting.

Download Full-text