Heart Rate Variability in Adolescents: Relations to Physical Activity, Fitness, and Adiposity

Gutin, Bernard; Howe, Cheryl A.; Johnson, Maribeth H.; Humphries, Matthew C.; Snieder, Harold; Barbeau, Paule

doi:10.1249/01.mss.0000175867.98628.27

Cited by 93 publications

(131 citation statements)

References 47 publications

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“…The above results are in opposition with those obtained by [12] and [13], they found gains in the parasympathetic nervous system modulation reflecting in a better HRV in teenagers. In the first study Sharma et al (2015) [12], the better HRV was associated to a larger estrogen concentration.…”

Section: Science Directcontrasting

confidence: 99%

“…This hormone, according to this study [12], increases the parasympathetic system modulation, when female teenagers are compared to their counterparts (male teenagers). In the second study [13] when teenageathletes from both genders were compared, the difference found was not related to the gender, but to a better parasympathetic modulation imposed by physical training. In another gender and ethnic differences study, HRV was improved in black teenagers, especially those who did moderate cardiovascular activities [13].…”

Section: Science Directmentioning

confidence: 86%

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Qi Gong and Heart Rate Variability: A Systematic Review

Ramos¹,

França²,

Nobre³

et al. 2017

JBM

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Qì Gōng is a type of exercise that involves meditation and is used for health. With a background from the martial arts, it is known also as an auto healing exercise with three main elements according to Traditional Chinese Medicine (TCM): body focus (posture and movement), breathing and mind focus (meditative elements). Heart rate variability is a tool that allows us to measure the autonomic system velocity to detect and respond to unexpected stimuli. So our goal was to build a systematic review of Qi Gong and Heart rate variability. PUBMED, EBSCO and Science Direct data bases were searched. Key terms (MeSH) were Heart Rate Variability and Ch'i Kung OR Qi Gong with a 10-year filter. Four independent reviewers analyzed all articles and excluded duplicated articles, articles in Chinese and articles with no adherence to the subject. The end result was 5 studies selected. Our results showed no significant improvements in HRV with the practice of Qì Gōng, probably because of data heterogeneity. We found 5 types of Qì Gōng, 3 different instruments and different time intervals to measure HRV and 2 different age groups in the studies. We can conclude that there is evidence that Qì Gōng can improve HRV but studies that would use the same parameters are needed to further confirm that.

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Section: Science Directcontrasting

confidence: 99%

Section: Science Directmentioning

confidence: 86%

Qi Gong and Heart Rate Variability: A Systematic Review

Ramos¹,

França²,

Nobre³

et al. 2017

JBM

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show abstract

“…Even though studies show a correlation between HRV and physical activity [1,34], in the present study, differences seen on HRV indices related to physical activity are probably biased by age because the group that practiced less than 2 h/week consists of younger children and the group that practiced more than 5 h/week is composed of the older participants.…”

Section: Discussioncontrasting

confidence: 58%

Heart Rate Variability in Children Submitted to Surgery

Silva¹,

Pinheiro²,

Almeida³

2016

J Anesth Clin Res

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Objective: Heart Rate Variability (HRV) is known to reflect the sympathetic/parasympathetic interaction on several physiological and pathological conditions such as the cardiac activity responsiveness to physiological and environmental stimuli. Therefore, it has been widely used to assess nervous autonomic fluctuations and their influence on sinus node. Studies on children have demonstrated the correlation between HRV and different parameters like age, gender, physical activity and autonomic diseases whereas little evidence exists of the effects of surgery and residual anesthesic drugs on HRV. The aim of this study was to define the possible role of minor surgery in HRV in healthy children.Design: Observational prospective cohort study.Setting: Pediatric Surgery Department of a tertiary, university-affiliated hospital.Patients: 47 healthy children who were scheduled for elective minor surgery.Measurements and Main Results: HRV measurements of 10 to 15 minutes were obtained before and after surgery, using a Holter recorder and the BioSigBrowser ® software. Results showed significant differences in HRV time domain indices before and after surgery in younger patients and in frequency domain in the older ones. They also demonstrated decreased HRV indices until one hour after being submitted to surgery in both time domain and LF parameters, reflecting a parasympathetic withdrawal and sympathetic predominance. Differences were also found when analyzing other variables such as anesthetic drugs. Conclusion:This study demonstrated that surgery has impact on Autonomic Nervous System function in healthy children but, independently of anesthetic drugs, type of surgery, age and existence of pain 60 minutes after surgery no difference in HRV measures was found and autonomic homeostasis was re-established. However, further investigation in this area is required in order to a better support of the role of HRV monitoring on early prognosis prediction and risk stratification in the surgical context.

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“…In a small sample of healthy young men, black participants had lower HF power and a higher LF/HF ratio compared to non-blacks, a group that included whites, Asians, and Latinos (Zion et al, 2003). In contrast, some studies of adolescents have found greater HF power in blacks compared to whites (Gutin et al, 2005;Wang et al, 2005).…”

Section: Discussionmentioning

confidence: 84%