Explore the Relationship Between Heart Rate Variability, Body Mass Index, Inflammation, and Insulin Resistance.

Last updated: October 6, 2024
Sponsor: National Tainan Junior College of Nursing
Overall Status: Completed

Phase

N/A

Condition

Hypertriglyceridemia

Diabetes (Pediatric)

Inflammation

Treatment

aerobic exercise(AE)

Clinical Study ID

NCT05949710
NTJCN
  • Ages 40-64
  • All Genders
  • Accepts Healthy Volunteers

Study Summary

The findings will serve as a reference for clinical professionals to promote exercise among the general population for improving HRV.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • are aged between 40 and 64 years.

  • had inactive habit (<3 days of physical activity per week and <30 minutes persession).

  • can communicate in Mandarin or Taiwanese.

Exclusion

Exclusion Criteria:

  • underlying conditions, such as stroke, acute coronary artery diseases, handicap,pregnancy, and unstable hypertension, that may present risks for exercise training.

  • smoking or alcohol abuse.

  • currently being on a diet, and (d) lifestyles that may affect HRV and inflammatorybiomarkers (e.g., shift work or habit of staying up late).

Study Design

Total Participants: 51
Treatment Group(s): 1
Primary Treatment: aerobic exercise(AE)
Phase:
Study Start date:
September 11, 2023
Estimated Completion Date:
January 31, 2024

Study Description

Background: Heart rate variability (HRV) measurement is widely used to assess the function of cardiac autonomic modulation. Aerobic exercise (AE) has been proven to improve HRV. However, because HRV is highly associated with visceral fat, inflammatory status, and insulin resistance, whether baseline body inflammation status can explain the heterogeneous response to AE remains unknown.

Purposes: We will compare the effects of AE training in improving HRV, inflammatory markers, and insulin resistance between community residents with normal weight and overweight/obesity.

Methods: A quasi-experimental study with purposive sampling will be used to recruit community residents aged 40-64 years with inactive habits in southern Taiwan. The minimum targeted sample size is 43 participants. The participants will be grouped into normal weight and overweight/obese groups. All participants will receive AE training with at least moderate intensity three times per week. HRV parameters, blood samples, and visceral fat will be evaluated. The blood samples will be evaluated for C-reactive protein and markers of insulin resistance (fasting glucose, insulin). All participants will be evaluated at baseline (T0) and after a 16-week intervention (T1). In addition to these time points, HRV will be measured during every exercise session for participants in exercise groups. Generalized estimating equations will be used to determine whether baseline BMI is the key factor influencing the effects of AE.

Relevance to clinical practice: The findings will serve as a reference for clinical professionals to promote exercise among the general population for improving HRV.

Connect with a study center

  • Yu-Hsuan Chang

    Tainan, 700
    Taiwan

    Site Not Available

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