Sports nutrition Nutritional, Metabolic, Endocrine
Conditions
Interventions
Subjects complete five experimental trials, each separated by 1 week. All trials are performed at the same time (morning) to ensure chronobiological control and are separated by a week. The one rep ma
Sponsors
TSI Group, Ltd
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: 1. Age 18–35 years 2. Male 3. Healthy and free of disease (as reported by the health screening questionnaire) 4. Physically active with at least 1 year of resistance training experience at a frequency of 3 days per week and 60 minutes per day and a relative 1RM of 1.5 to 2.0 kg/body weight
Exclusion criteria
Exclusion criteria: 1. Any individual diagnosed with or being treated for cardiac, respiratory, circulatory, musculoskeletal, metabolic, obesity (defined as body mass index >30 kg/m² and body fat greater than 30%), immune, autoimmune, psychiatric, hematological, neurological, or endocrinological disorder or disease were not allowed to participate in the current study. 2. Not used any dietary supplements for at least 6 months before the study 3. Not use any other ergogenic substances or supplements during the study 4. No change in their regular diet and exercise patterns 5. No caffeine consumption 12 hours before each experimental test.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Number of set 1 repetitions (n) of half-squats until momentary muscular failure with a load corresponding to 80% of the 1RM, recorded by researchers at visits 2, 3, 4 and 5 2. Number of set 2 repetitions (n) of half-squats until momentary muscular failure with a load corresponding to 80% of the 1RM, recorded by researchers at visits 2, 3, 4 and 5 3. Number of set 3 repetitions (n) of half-squats until momentary muscular failure with a load corresponding to 80% of the 1RM. recorded by researchers at visits 2, 3, 4 and 5 4. Number of set 4 repetitions (n) of half-squats until momentary muscular failure with a load corresponding to 80% of the 1RM, recorded by researchers at visits 2, 3, 4 and 5 5. Number of total repetition (n) of half-squats until momentary muscular failure with a load corresponding to 80% of the 1RM, calculated from the sum of set 1, 2, 3, and 4 repetitions at visits 2, 3, 4 and 5 6. Total weight lifted (kg) calculated from the total repetition and the individual 1RM at visits 2, 3, 4 and 5 7. Rate of perceived exertion measured using the visual analogue score (VAS) at visits 2, 3, 4, and 5 | — |
Secondary
| Measure | Time frame |
|---|---|
| There are no secondary outcome measures | — |
Countries
Brazil
Outcome results
None listed