Autonomic Modulation Recovery After Acute Resistance Exercise

Not Applicable

Completed

• Conditions: Resistance Training
• Interventions: Other: Resistance Training - LL endurance protocol; Other: Resistance Training - LL strength protocol; Other: Resistance Training - UL endurance protocol; Other: Resistance Training - UL strength protocol

• Registration Number: NCT04569617
• Lead Sponsor: Universidade Estadual Paulista Júlio de Mesquita Filho

Brief Summary

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

Detailed Description

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.

Study Timeline

• Study Start: 2011-08-01
• Primary Completion: 2012-11-30
• Study Completion: 2015-01-20
• Study First Submitted: 2020-08-28
• Status Verified: 2020-09
• Study First Submitted QC: 2020-09-23
• Last Update Submitted: 2020-09-23
• Study First Posted: 2020-09-30
• Last Update Posted: 2020-09-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 49

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.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
lower limb endurance protocol	Resistance Training - LL endurance protocol	LL endurance protocol - knee extension
lower limb strength protocol	Resistance Training - LL strength protocol	LL strength protocol - knee extension
upper limb endurance protocol	Resistance Training - UL endurance protocol	UL endurance protocol - elbow flexion
upper limb strength protocol	Resistance Training - UL strength protocol	UL strength protocol - elbow flexion

Primary Outcome Measures

Name	Time	Method
Acute responses of the Autonomic Nervous System post Resistance Training of the time-domain indices of Heart Rate Variability	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.
Acute responses of the Autonomic Nervous System post Resistance Training of the geometric indices of Heart Rate Variability	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
Acute responses of the Autonomic Nervous System post Resistance Training of the frequency domain of Heart Rate Variability,	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

Trial Locations

Locations (2)

Universidade Estadual Paulista Júlio de Mesquita Filho; 🇧🇷 Presidente Prudente, São Paulo, Brazil

Luiz Carlos Marques Vanderlei; 🇧🇷 Presidente Prudente, SP, Brazil