Noninvasive measurements to evaluate the effects of military training on the human autonomic nervous system

Ji Hong Chen, Qian Zhang, Xin Liu, Zhixin Li, Cuizhen Zhang, Kongling Li, Jonathan Paul, Jingming Ouyang, Yuanjie Yu, Baoping Yu, Jan D. Huizinga, Jiande Chen, Hesheng Luo

Research output: Contribution to journalArticle

Abstract

Background: Chinese university freshmen receive 4-weeks military training that involved moderate to intense physical exercise. Studies have demonstrated heterogeneous effects of exercise on the autonomic nervous system. Asian Biomedicine

Objective: To evaluate the effects of training on the autonomic nervous system noninvasively using electrogastrograms, heart rate variability (HRV), pulse rate, and the sympathetic skin response (SSR).

Methods: Twenty freshmen received all assessments in the fasting state and after a standard meal: (1) one week before the training, (2) at the end of the second week of the training, and (3) one week after the training.

Results: (1) The training had a significant effect on meal-induced gastric pacemaker activity. Before the training, a standard meal did not increase the dominant frequency of gastric slow waves, but the frequency increased during and after the training; (2) The preprandial high frequency (HF), low frequency (LF), and very low frequency (VLF) components of heart rate variability decreased significantly after the training. The ratio of the LF and HF (LF/HF) of the heart rate variability (HRV) did not significantly change after a meal or training condition. The basal pulse rate did not change. The latencies of the sympathetic skin response (SSR), as measured in the arm muscle, increased in response to the training.

Conclusion: Military training affects meal-induced changes in gastric pacemaker activity, causes a marked reduction of the vagal tone to the heart with maintenance of the vagal-sympathetic balance, and its effects on SSR may reflect a reduction in sympathetic tone.

Original languageEnglish (US)
Pages (from-to)453-461
Number of pages9
JournalAsian Biomedicine
Volume8
Issue number4
DOIs
StatePublished - Aug 1 2014
Externally publishedYes

Fingerprint

Autonomic Nervous System
Neurology
Meals
Heart Rate
Pacemakers
Skin
Stomach
Muscle
Fasting
Maintenance
Exercise
Muscles

Keywords

  • Autonomic nervous system
  • Electrogastrogram
  • Heart rate variability
  • Sympathetic skin response
  • Sympathovagal balance

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Noninvasive measurements to evaluate the effects of military training on the human autonomic nervous system. / Chen, Ji Hong; Zhang, Qian; Liu, Xin; Li, Zhixin; Zhang, Cuizhen; Li, Kongling; Paul, Jonathan; Ouyang, Jingming; Yu, Yuanjie; Yu, Baoping; Huizinga, Jan D.; Chen, Jiande; Luo, Hesheng.

In: Asian Biomedicine, Vol. 8, No. 4, 01.08.2014, p. 453-461.

Research output: Contribution to journalArticle

Chen, JH, Zhang, Q, Liu, X, Li, Z, Zhang, C, Li, K, Paul, J, Ouyang, J, Yu, Y, Yu, B, Huizinga, JD, Chen, J & Luo, H 2014, 'Noninvasive measurements to evaluate the effects of military training on the human autonomic nervous system', Asian Biomedicine, vol. 8, no. 4, pp. 453-461. https://doi.org/10.5372/1905-7415.0804.314
Chen, Ji Hong ; Zhang, Qian ; Liu, Xin ; Li, Zhixin ; Zhang, Cuizhen ; Li, Kongling ; Paul, Jonathan ; Ouyang, Jingming ; Yu, Yuanjie ; Yu, Baoping ; Huizinga, Jan D. ; Chen, Jiande ; Luo, Hesheng. / Noninvasive measurements to evaluate the effects of military training on the human autonomic nervous system. In: Asian Biomedicine. 2014 ; Vol. 8, No. 4. pp. 453-461.
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AU - Chen, Ji Hong

AU - Zhang, Qian

AU - Liu, Xin

AU - Li, Zhixin

AU - Zhang, Cuizhen

AU - Li, Kongling

AU - Paul, Jonathan

AU - Ouyang, Jingming

AU - Yu, Yuanjie

AU - Yu, Baoping

AU - Huizinga, Jan D.

AU - Chen, Jiande

AU - Luo, Hesheng

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N2 - Background: Chinese university freshmen receive 4-weeks military training that involved moderate to intense physical exercise. Studies have demonstrated heterogeneous effects of exercise on the autonomic nervous system. Asian BiomedicineObjective: To evaluate the effects of training on the autonomic nervous system noninvasively using electrogastrograms, heart rate variability (HRV), pulse rate, and the sympathetic skin response (SSR).Methods: Twenty freshmen received all assessments in the fasting state and after a standard meal: (1) one week before the training, (2) at the end of the second week of the training, and (3) one week after the training.Results: (1) The training had a significant effect on meal-induced gastric pacemaker activity. Before the training, a standard meal did not increase the dominant frequency of gastric slow waves, but the frequency increased during and after the training; (2) The preprandial high frequency (HF), low frequency (LF), and very low frequency (VLF) components of heart rate variability decreased significantly after the training. The ratio of the LF and HF (LF/HF) of the heart rate variability (HRV) did not significantly change after a meal or training condition. The basal pulse rate did not change. The latencies of the sympathetic skin response (SSR), as measured in the arm muscle, increased in response to the training.Conclusion: Military training affects meal-induced changes in gastric pacemaker activity, causes a marked reduction of the vagal tone to the heart with maintenance of the vagal-sympathetic balance, and its effects on SSR may reflect a reduction in sympathetic tone.

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KW - Electrogastrogram

KW - Heart rate variability

KW - Sympathetic skin response

KW - Sympathovagal balance

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