Comparison of the Increment of Neuromuscular Parameters in Vegetarians and Non-vegetarians

Hospital de Clinicas de Porto Alegre

Status: Completed

Conditions: Muscle Strength; Dietary Proteins; Strength Training; Hypertrophy

Treatments: Other: Strength training; Other: Protein intake

Study type: Interventional

Funder types: Other

Identifiers

NCT03785002

69787617.0.0000.5327

Details and patient eligibility

About

A strength training session promotes increased muscle sensitivity to protein synthesis, which lasts for 24 hours after its closure. Recent studies have shown that the subsequent intake to the training session of approximately 20g or 0.24g / kg of high-quality protein in the same meal induces a plateau in this synthesis. Thus, this study aims to compare the muscular strength between vegetarian and omnivorous athletes with adequate protein intake to reach this plateau. It will recruit 64 university sportsmen who have maintained vegetarian or omnivorous diet for at least 6 months, totalizing 32 individuals per group. After signing the Term of Consent, participants will be submitted to anthropometric and body composition assessment (via DEXA), neuromuscular tests [(ie, muscle strength - 1RM, peak torque of knee extensors (JE), muscle thickness of JE and cohort analysis (ANCOVA) will be used in order to compare the results of the study, and to compare the results of the covariance analysis (ANCOVA). the levels of the neuromuscular parameters between the groups, considering the initial values of the force and the initial muscular thickness as covariables, the other parameters will be presented in the form of mean and standard deviation or median, the differences will be considered significant for values of p <0, 05. Expected to find no differences in strength and muscle thickness between vegetarians and omnivores after adequate protein intake.

Enrollment: 64 patients

Sex: All

Ages: 19 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

• Be over the age of 19 and under 60;
• Have BMI <30 kg / m²;
• Be vegetarian or omnivorous for at least 6 months;
• Have not exercised regularly for at least 6 months.
• Be available to practice bodybuilding at School of Physical Education, Physiotherapy and Dance, 2x / week, for 3 months, free (times to combine).

Exclusion Criteria

• Be vegan, vegetarian lacto or vegetarian egg
• Be a carrier of chronic diseases;
• Present physical limitations or musculoskeletal problems, which contraindicate the performance of strength exercises;
• Failure to adhere to the proposed dietary modifications, relating to the adequacy of the portion of protein per meal, due to financial unfeasibility (low income condition);
• Use of protein or amino acid, caffeine or other thermogenic food supplements.

Trial design

Primary purpose: Other

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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64 participants in 2 patient groups

vegetarian

Experimental group

Description:

Individuals who do not consume meat (vegetarian dietary pattern) will undergo strength training sessions and guidance on protein intake (at least 20g for breakfast, lunch, and dinner)

Treatment:

Other: Strength training

Other: Protein intake

non vegetarian

Active Comparator group

Description:

Individuals who do consume meat (non vegetarian dietary pattern) will undergo strength training sessions and guidance on protein intake (at least 20g for breakfast, lunch, and dinner)

Treatment:

Other: Strength training

Other: Protein intake