Research volunteers are physically inactive, seemingly healthy adults and men with no physical exercise restriction.
Conditions
Interventions
42 volunteers (21 for each group) physically inactive will be allocated randomly to one of the experimental groups, namely: (1) Group with a stimulus-recovery time (passive) of 30 seconds for 30 secon
95% of Vmax in the 3rd week and, finally, 100% of Vmax (4th week). Vmax will be determined in an incremental maximal stress test before the start of the training period and will work as follows: The p
Other
G11.427.410.698.277.311.250
Sponsors
Universidade Federal do Rio Grande do Norte
Universidade Federal do Rio Grande do Norte
Eligibility
Inclusion criteria
Inclusion criteria: The inclusion criteria in the study are: age between 18 and 40 years; male and female sex; be apparently healthy; physically inactive (ie individuals who perform less than 150 min / week of moderate physical activity or less than 75 min / week of vigorously active physical activity regularly for at least three months (verified by accelerometer) ; Body mass index (BMI) between 18.5 kg / m2 and 29.9 kg / m2; without ostiomioarticular lesions; have experience with treadmill exercise.
Exclusion criteria
Exclusion criteria: The exclusion criteria of the study are: individuals who regularly practice high intensity interval exercise; use of drugs that modulate cardiorespiratory function; being smoker or stopped recently (in the last 6 months) and any type of injury that makes it impossible to continue the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peak oxygen uptake (VO2 peak) relative to body weight, measured using an automatic gas collection system (Metalyzer 3B, Cortex Biophysik GmbH, Leipzig, Germany), before and after four weeks of intervention. The values ??will be presented and compared through the average of each group. | — |
Secondary
| Measure | Time frame |
|---|---|
| Absolute peak oxygen uptake (VO2 peak), measured using an automatic gas collection system (Metalyzer 3B, Cortex Biophysik GmbH, Leipzig, Germany), before and after four weeks of intervention. The values will be presented and compared through the average of each group.;Peak oxygen uptake (VO2 peak) relative to fat-free mass, measured using an automatic gas collection system (Metalyzer 3B, Cortex Biophysik GmbH, Leipzig, Germany), before and after four weeks of intervention. The values will be presented and compared by the average of each group.;Threshold point oxygen uptake, measured using an automatic gas collection system (Metalyzer 3B, Cortex Biophysik GmbH, Leipzig, Germany), and measured before and after four weeks of intervention.;Respiratory compensation point, measured using an automatic gas collection system (Metalyzer 3B, Cortex Biophysik GmbH, Leipzig, Germany), and measured before and after four weeks of intervention.;Affective response, measured using an 11-point bipolar dimensional model single item scale, ranging from +5 to -5, commonly used to measure affective valence (pleasure / displeasure). The scale will be displayed during all training sessions (intervention) after each stimulus (30s or 60s). The values will be presented and compared by the average of each session and stimulus to stimulus.;Subjective effort perception, using an effort scale, with a score between 6 (no effort) and 20 (maximum effort). The scale will be displayed during all training sessions (intervention) after each stimulus (30s or 60s). Values will be presented and compared by the average of each session and stimulus to stimulus.;Attendance rate for training sessions, which will be quantified by the average individual percentage (number of sessions attended divided by the total number of sessions prescribed).;Adherence rate, which will be quantified based on the ratio of volunteers who completed the program to the total number of subjects who initiated the training program.;Rec | — |
Countries
Brazil
Contacts
Public ContactCharles Lucena
Hospital Universirtário Onofre Lopes
Outcome results
None listed