Effects of increased physical activity and mild calorie restriction on heart rate variability in obese women

I. T.O. Hiroyuki, Akiko Ohshima, Misako Tsuzuki, Naoko Ohto, Mami Yanagawa, Toru Maruyama, Yoshikazu Kaji, Shozo Kanaya, Kazuo Nishioka

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The effects of exercise and mild calorie restriction on heart rate variability (HRV) were investigated in 12 mildly obese, normotensive Japanese women aged 45.8±4.2 (SEM) years with a body mass index (BMI) of 27.3±0.4 kg/m2. The subjects participated in a 3-month program aimed at increasing physical activity and modifying eating behavior (intervention group). The control group consisted of 12 women (age 50.1±4.8 years, BMI 27.2±0.6 kg/m2) who did not attend the program. The frequency domain of HRV was calculated from 5-min Holter recordings while the subjects rested in a supine position. After 3 months, BMI decreased to 25.0±0.5 kg/m2 (p<0.001 vs baseline) in the intervention group, which was accompanied by decreases in body fat mass, waist circumference, serum total cholesterol and triglycerides, and improvement in insulin sensitivity. The mean and SD of the RR intervals, total power, and low and high frequency power of HRV significantly increased after the intervention, whereas no significant changes were seen for the controls. The changes in these HRV variables (calculated by subtracting the baseline values from the follow-up values) negatively correlated with the change in waist circumference, with the Pearson correlation coefficients being between -0.50 and -0.62 (p<0.05). A negative correlation was also seen between the changes in high frequency power and insulin resistance estimated by homeostasis model assessment (r=-0.49, p<0.05). The combination of exercise and mild calorie restriction led to changes in HRV indicative of an improvement in parasympathetic modulation.

Original languageEnglish
Pages (from-to)459-469
Number of pages11
Journaljapanese heart journal
Volume42
Issue number4
DOIs
Publication statusPublished - Nov 20 2001

Fingerprint

Heart Rate
Exercise
Body Mass Index
Waist Circumference
Insulin Resistance
Supine Position
Feeding Behavior
Adipose Tissue
Triglycerides
Homeostasis
Cholesterol
Control Groups
Serum
Power (Psychology)

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

Cite this

Effects of increased physical activity and mild calorie restriction on heart rate variability in obese women. / Hiroyuki, I. T.O.; Ohshima, Akiko; Tsuzuki, Misako; Ohto, Naoko; Yanagawa, Mami; Maruyama, Toru; Kaji, Yoshikazu; Kanaya, Shozo; Nishioka, Kazuo.

In: japanese heart journal, Vol. 42, No. 4, 20.11.2001, p. 459-469.

Research output: Contribution to journalArticle

Hiroyuki, ITO, Ohshima, A, Tsuzuki, M, Ohto, N, Yanagawa, M, Maruyama, T, Kaji, Y, Kanaya, S & Nishioka, K 2001, 'Effects of increased physical activity and mild calorie restriction on heart rate variability in obese women', japanese heart journal, vol. 42, no. 4, pp. 459-469. https://doi.org/10.1536/jhj.42.459
Hiroyuki, I. T.O. ; Ohshima, Akiko ; Tsuzuki, Misako ; Ohto, Naoko ; Yanagawa, Mami ; Maruyama, Toru ; Kaji, Yoshikazu ; Kanaya, Shozo ; Nishioka, Kazuo. / Effects of increased physical activity and mild calorie restriction on heart rate variability in obese women. In: japanese heart journal. 2001 ; Vol. 42, No. 4. pp. 459-469.
@article{0f90bc9699d04cf19ce7ef668cbbdc9c,
title = "Effects of increased physical activity and mild calorie restriction on heart rate variability in obese women",
abstract = "The effects of exercise and mild calorie restriction on heart rate variability (HRV) were investigated in 12 mildly obese, normotensive Japanese women aged 45.8±4.2 (SEM) years with a body mass index (BMI) of 27.3±0.4 kg/m2. The subjects participated in a 3-month program aimed at increasing physical activity and modifying eating behavior (intervention group). The control group consisted of 12 women (age 50.1±4.8 years, BMI 27.2±0.6 kg/m2) who did not attend the program. The frequency domain of HRV was calculated from 5-min Holter recordings while the subjects rested in a supine position. After 3 months, BMI decreased to 25.0±0.5 kg/m2 (p<0.001 vs baseline) in the intervention group, which was accompanied by decreases in body fat mass, waist circumference, serum total cholesterol and triglycerides, and improvement in insulin sensitivity. The mean and SD of the RR intervals, total power, and low and high frequency power of HRV significantly increased after the intervention, whereas no significant changes were seen for the controls. The changes in these HRV variables (calculated by subtracting the baseline values from the follow-up values) negatively correlated with the change in waist circumference, with the Pearson correlation coefficients being between -0.50 and -0.62 (p<0.05). A negative correlation was also seen between the changes in high frequency power and insulin resistance estimated by homeostasis model assessment (r=-0.49, p<0.05). The combination of exercise and mild calorie restriction led to changes in HRV indicative of an improvement in parasympathetic modulation.",
author = "Hiroyuki, {I. T.O.} and Akiko Ohshima and Misako Tsuzuki and Naoko Ohto and Mami Yanagawa and Toru Maruyama and Yoshikazu Kaji and Shozo Kanaya and Kazuo Nishioka",
year = "2001",
month = "11",
day = "20",
doi = "10.1536/jhj.42.459",
language = "English",
volume = "42",
pages = "459--469",
journal = "International Heart Journal",
issn = "1349-2365",
publisher = "International Heart Journal Association",
number = "4",

}

TY - JOUR

T1 - Effects of increased physical activity and mild calorie restriction on heart rate variability in obese women

AU - Hiroyuki, I. T.O.

AU - Ohshima, Akiko

AU - Tsuzuki, Misako

AU - Ohto, Naoko

AU - Yanagawa, Mami

AU - Maruyama, Toru

AU - Kaji, Yoshikazu

AU - Kanaya, Shozo

AU - Nishioka, Kazuo

PY - 2001/11/20

Y1 - 2001/11/20

N2 - The effects of exercise and mild calorie restriction on heart rate variability (HRV) were investigated in 12 mildly obese, normotensive Japanese women aged 45.8±4.2 (SEM) years with a body mass index (BMI) of 27.3±0.4 kg/m2. The subjects participated in a 3-month program aimed at increasing physical activity and modifying eating behavior (intervention group). The control group consisted of 12 women (age 50.1±4.8 years, BMI 27.2±0.6 kg/m2) who did not attend the program. The frequency domain of HRV was calculated from 5-min Holter recordings while the subjects rested in a supine position. After 3 months, BMI decreased to 25.0±0.5 kg/m2 (p<0.001 vs baseline) in the intervention group, which was accompanied by decreases in body fat mass, waist circumference, serum total cholesterol and triglycerides, and improvement in insulin sensitivity. The mean and SD of the RR intervals, total power, and low and high frequency power of HRV significantly increased after the intervention, whereas no significant changes were seen for the controls. The changes in these HRV variables (calculated by subtracting the baseline values from the follow-up values) negatively correlated with the change in waist circumference, with the Pearson correlation coefficients being between -0.50 and -0.62 (p<0.05). A negative correlation was also seen between the changes in high frequency power and insulin resistance estimated by homeostasis model assessment (r=-0.49, p<0.05). The combination of exercise and mild calorie restriction led to changes in HRV indicative of an improvement in parasympathetic modulation.

AB - The effects of exercise and mild calorie restriction on heart rate variability (HRV) were investigated in 12 mildly obese, normotensive Japanese women aged 45.8±4.2 (SEM) years with a body mass index (BMI) of 27.3±0.4 kg/m2. The subjects participated in a 3-month program aimed at increasing physical activity and modifying eating behavior (intervention group). The control group consisted of 12 women (age 50.1±4.8 years, BMI 27.2±0.6 kg/m2) who did not attend the program. The frequency domain of HRV was calculated from 5-min Holter recordings while the subjects rested in a supine position. After 3 months, BMI decreased to 25.0±0.5 kg/m2 (p<0.001 vs baseline) in the intervention group, which was accompanied by decreases in body fat mass, waist circumference, serum total cholesterol and triglycerides, and improvement in insulin sensitivity. The mean and SD of the RR intervals, total power, and low and high frequency power of HRV significantly increased after the intervention, whereas no significant changes were seen for the controls. The changes in these HRV variables (calculated by subtracting the baseline values from the follow-up values) negatively correlated with the change in waist circumference, with the Pearson correlation coefficients being between -0.50 and -0.62 (p<0.05). A negative correlation was also seen between the changes in high frequency power and insulin resistance estimated by homeostasis model assessment (r=-0.49, p<0.05). The combination of exercise and mild calorie restriction led to changes in HRV indicative of an improvement in parasympathetic modulation.

UR - http://www.scopus.com/inward/record.url?scp=0034764165&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034764165&partnerID=8YFLogxK

U2 - 10.1536/jhj.42.459

DO - 10.1536/jhj.42.459

M3 - Article

C2 - 11693282

AN - SCOPUS:0034764165

VL - 42

SP - 459

EP - 469

JO - International Heart Journal

JF - International Heart Journal

SN - 1349-2365

IS - 4

ER -