Aerobic Training on the Autonomic Modulation in Children
- Conditions
- Healthy
- Interventions
- Other: Aerobic Training
- Registration Number
- NCT02236117
- Lead Sponsor
- Universidade Estadual de Londrina
- Brief Summary
The heart rate variability is a tool used to asses non-invasive cardiac autonomic. In fact, many studies have been disseminated of heart rate variability in adults, however few results in a literature this parameters in pediatric population, mainly with children submitted the physical training. Thus, this Project aims to verify the effects of aerobic training, with 10 weeks, in prepubertal on the performance and heart rate variability in rest.
- Detailed Description
The randomized control trial in accordance with Consort - Statement (Moher et al., 2012) will be done. Will be included 160 children, 80 in an experimental group and 80 children with no intervention, of both genders.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 160
- Children be with body weight and height between the 10th and 90th percentiles, according to criteria adopted by the Centers for Disease Control and Prevention (CDC, 2002).
- To characterize the infant state, all volunteers will conduct evaluation of secondary sexual characters by criteria of Tanner (Marshall and Tanner, 1970), through visual inspection by a single experienced paediatrician. Children must show the initial stage of pubertal development, for girls (1 breast) and boys (genital 1) to be included and characterized such prepubertal. Participants throughout the trial entering puberty will be excluded from the final analysis.
- The children will be healthy, without clinical or historical evidence of cardiovascular disease, hypertension, insulin-dependent diabetes mellitus or obesity, and were not taking any drugs.
- The participants can be not linked to sports practices at least one year before the beginning the study, and can be involved only with the physical education classes two times a week for 50 minutes each class.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Intervention: Aerobic Training Aerobic Training The children included in the experimental group will make 10 weeks of aerobic training. The intensity of the race will be based on individual speed obtained in the last stage completed the progressive test, known as the maximal aerobic speed (MAV) in km/h. The running speed of the exercise protocol will be minimum 80% of the MAV in the protocol of continuous training. The intermittent progressive training is n \* (10\*15 s) to 100% MAV, and n from 2 to 6 series between the first and tenth week. The training protocol was adapted from previously described (Mandigout et al, 2002, Gamelin et al, 2009.). Acceptance of the exercise in a pediatric population has been previously observed by pilot study.
- Primary Outcome Measures
Name Time Method Rest Heart Rate Variability in short term 10 weeks The cardiac autonomic modulation of the sinoatrial node will be estimated via heart rate variability (HRV) pre- after 5 weeks - post-10 weeks of training and after 8 weeks of finished the intervention (follow-up period). The duration of the RR interval recordings (RRinterval) will be obtained from each children using a portable heart rate monitor (Polar RS800) at a sampling rate of 1000 Hz. The recordings will be downloaded via commercial software and export for later analysis of time and frequency domain measures of HRV. The time domain indices examined will be: the mean RR interval, the root-mean-square difference of successive normal RR intervals (RMSSD), which reflects vagal modulation, and the standard deviation of all normal RR intervals (SDNN), which comprises both sympathetic and vagal cardiac modulations (Task Force, 1996).
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Universidade Estadual de Londrina
🇧🇷Londrina, Paraná, Brazil