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Completed

NCT Number: NCT04569617

Autonomic Modulation Recovery After Acute Resistance Exercise

To analyze the autonomic behavior in recovery post-acute resistance exercise performed in different intensities and body segments.

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Key information

Conditions

Resistance Training Behavior Motor Activity

Age range

18 year–30 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Luiz Carlos Marques Vanderlei, Presidente Prudente, São Paulo, Brazil

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About this study

Resistance training (RT) is recommended to people with different health condition. RT is recognized as safe and effective method of increasing muscle strength, physical fitness, muscle mass, and overall cardiovascular health. The magnitude of the RT effects is associated with the structure of the training program. Understanding these aspects may provide guidance for the RT prescription while reducing potential risk of cardiovascular events associated with the recovery period after exercise. The objective of the study is to compare the acute responses of the Autonomic Nervous System post RT performed with different intensities (endurance and strength) in different body segments (UL and LL). Our hypothesis is that different intensities and body segments influence the acute responses of the ANS in the post RT recovery period.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Graduate students,
  • Age between 18 to 30 years
  • Healthy men, the Physical Activity Readiness Questionnaire (PAR-Q) was used to determine safety and possible risk of exercising based on participants' health history, the according American College of Sports Medicine, 2010.
  • Trained men, the International Physical Activity Questionnaire (IPAQ) was used to determine participants' physical activity level.

Exclusion criteria

Participants who did not attend all the RT protocols and those with HR record with error higher than 5% (ectopic beats) will be excluded.

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Treatment and study plan

Resistance Training - UL endurance protocol

Other

UL endurance protocol - 2 series of 20 repetitions, elbow flexion at 40% of the maximum test force of 1 maximum repetition, (recovery 1 minutes between sets).

Resistance Training - UL strength protocol

Other

UL strength protocol - 2 series of 8 repetitions, elbow flexion at 80% of the maximum test force of 1 maximum repetition, (recovery 1 minutes between sets).

Resistance Training - LL endurance protocol

Other

LL endurance protocol - 2 series of 20 repetitions, elbow flexion at 40% of the maximum test strength of 1 maximum repetition, (recovery 1 minutes between sets).

Resistance Training - LL strength protocol

Other

LL strength protocol - 2 series of 8 repetitions, knee extension at 80% of the maximum test force of 1 maximum repetition, (recovery 1 minutes between sets).

Primary outcomes

  1. Acute responses of the Autonomic Nervous System post Resistance Training of the time-domain indices of Heart Rate Variability

    Time frame: the moments before and immediately after Resistance Training, performed with different intensities (endurance and strength) and body segments (UL and LL).

    Understand the effect of acute responses of the time-domain indices of Heart Rate Variability, RMSSD, and SDNN, comparing the behavior of these indices of in rest periods and immediate recovery after effort. Besides, to analyze the changes observed when applying different training intensities (endurance protocol 40% 1RM, and strength protocol 80% 1 RM) and body segments (elbow flexion [UL] and knee extension [LL]).

    RMSSD: root mean square of the successive differences between the RR intervals in the record, divided by the number of RR intervals in a given time minus one RR interval SDNN: standard deviation of all normal RR intervals.

  2. Acute responses of the Autonomic Nervous System post Resistance Training of the geometric indices of Heart Rate Variability

    Time frame: the moments before and immediately after Resistance Training, performed with different intensities (endurance and strength) and body segments (UL and LL).

    Understand the effect of acute responses of the geometric indices of Heart Rate Variability, SD1, SD2, comparing the behavior of these indices of in rest periods and immediate recovery after effort. Besides, to analyze the changes observed when applying different training intensities (endurance protocol 40% 1RM, and strength protocol 80% 1 RM) and body segments (elbow flexion [UL] and knee extension [LL]).

    SD1: standard deviation of diagonal points SD2: standard deviation from longitudinal points

  3. Acute responses of the Autonomic Nervous System post Resistance Training of the frequency domain of Heart Rate Variability,

    Time frame: the moments before and immediately after Resistance Training, performed with different intensities (endurance and strength) and body segments (UL and LL).

    Understand the effect of acute responses of the frequency domain of Heart Rate Variability, LF anf HF, both calculated in absolute (ms2) and normalized units (nu), comparing the behavior of these indices of in rest periods and immediate recovery after effort. Besides, to analyze the changes observed when applying different training intensities (endurance protocol 40% 1RM, and strength protocol 80% 1 RM) and body segments (elbow flexion [UL] and knee extension [LL]).

    LF: spectral components of low frequency, 0.04 - 0.15Hz HF: spectral components of high frequency, 0.15 - 0.40 Hz

Sponsors and collaborators

Lead sponsor

Universidade Estadual Paulista Júlio de Mesquita Filho

Other

Registry information

Official study title

Autonomic Modulation Recovery After Acute Resistance Exercise in Different Intensities and Body Segments

Important dates

Study start
2011
Primary completion
2012
Study completion
2015
First posted
Sep 30, 2020
Registry last updated
Sep 30, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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