Alkalosis, Metabolic, Electromyography, Fatigue, Sodium Bicarbonate
Conditions
Brief summary
The aim of this study was to verify if sodium bicarbonate (NaHCO3) suplementation promotes changes in the performance, muscular activity and strength of individuals trained during the intermittent and intense task . Twelve trained adult men will participate in this randomized, double-blind, crossover clinical trial. Each participant should receive two types of intervention with a 14-day interval between conditions: alkalosis (ALK) in which gelatinous capsules containing 0.3 g.kg -1 of NaHCO 3 and placebo (PLA) are administered, in which 0.3 g.kg-1 of Calcium Carbonate (CaCO3). The following results will be considered: electromyographic activity (EMG) of the quadriceps muscle, peak torque, pH, lactate, and perception of effort, recovery and pain questionnaires, which will be collected during intermittent and high intensity DI protocol. ANOVA of repeated measures will be used to verify possible differences between groups.
Interventions
DIETARY_SUPPLEMENTSodium bicarbonate
The subjects should ingest 0.3g.kg of sodium bicarbonate 90 minutes before the beginning of the protocol task.
DIETARY_SUPPLEMENTCalcium carbonate
The subjects should receive gelatinous capsules containing 0.3 g.kg -1 of Calcium Carbonate
Sponsors
Marcelo Martins Kalytczak
University of Nove de Julho
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
MALE
Age
20 Years to 42 Years
Healthy volunteers
Yes
Inclusion criteria
* resistance trained men (minimum 12 moths resistance training experience)
Exclusion criteria
* diabetes mellitus; * respiratory (asthma, COPD), renal, metabolic, rheumatic and cardiovascular disorders; * acid-base balance disorder; * continuous use of some type of medication; * use of high-protein supplementation and creatine supplementation; * users of anabolic steroids.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Electromyographic activity of the femoral quadriceps evaluated with electromyography equipment | 60 minutes | The electromyographic activity will be obtained during the execution of 10 series composed of ten repetitions of extension (concentric phase) and flexion (eccentric phase) of the knee joint, at an angular velocity of 120os-1 (radians per second), with interval of 1 minute interval between sets in an isokinetic dynamometer. |
| Peak torque assessed with isokinetic dynamometer equipment | 60 minutes | The peak torque will be obtained during the execution of 10 series composed of ten repetitions of extension (concentric phase) and flexion (eccentric phase) of the knee joint, at an angular velocity of 120os-1 (radians per second), with interval of 1 minute interval between sets. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Lactate assessed with portable lactometer | 15 seconds | The lactate quantification will be performed before and after the test session characterized by the execution of 10 series composed of ten repetitions of extension (concentric phase) and flexion (eccentric phase) of the knee joint, at an angular velocity of 120os-1 (radians per second), with an interval of 1 minute between sets in an isokinetic dynamometer. |
Countries
Brazil
Contacts
Primary ContactMarcelo M Kalytczak, PhD
Outcome results
None listed