Resistance Training
Conditions
Keywords
resistance training, autonomic modulation, heart rate, exercise
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.
Interventions
OTHERResistance Training - UL endurance protocol
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).
OTHERResistance Training - UL strength protocol
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).
OTHERResistance Training - LL endurance protocol
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).
OTHERResistance Training - LL strength protocol
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).
Sponsors
Universidade Estadual Paulista Júlio de Mesquita Filho
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
This study is a cross-over clinical trial
Eligibility
Sex/Gender
MALE
Age
18 Years to 30 Years
Healthy volunteers
Yes
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. \-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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 |
Countries
Brazil
Outcome results
None listed