Effects of Hydrolyzed Collagen and Vitamin C on Explosive Performance

PepsiCo Global R&D50 enrolled

Overview

Determine whether supplementation with a combined dose of 20 g of hydrolyzed collagen and 50 mg vitamin C, along with a power training exercise program, increases rate of force development (RFD) and performance in athletes

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

QUADRUPLE

Enrollment

Conditions

Collagen Synthesis Rate of Force (RFD) Development

Interventions

Collagen and Vitamin C powder mix nutritional interventionDIETARY_SUPPLEMENT

20 g collagen + 50 mg vitamin C daily, 60 min prior to exercise

Maltodextrin placebo powderOTHER

20 g maltodextrin placebo daily, 60 min prior to exercise

Maximum power training exerciseOTHER

Explosive/power-based exercise training program 3 times/week at home consisting of drop jumps, box jumps, weighted jump squats loaded in a progressive manner weekly for 3 weeks. At baseline and at the end of each of the 3 weeks, measures of explosive performance are assessed in the lab (maximal isometric squat, counter-movement jump and squat jump)

Eligibility

Sex: MALEMin age: 18 YearsMax age: 30 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. Healthy male athletes between 18-30 years of age 2. Currently participating in sport 3. \<3 musculoskeletal injuries in the past year 4. No health or dietary restriction that would be affected by the supplementation protocol Exclusion Criteria: 1. History of more than 3 musculoskeletal injuries within the past 12 months 2. Health, dietary restriction or diet that would be affected by the supplementation protocol 3. Willing to eat similar dietary pattern the day before baseline testing and each exercise testing/intervention day

Locations (1)

UC Davis Functional Molecular Biology Laboratory and Human Performance Laboratory

Davis, California, United States

Outcomes

Primary Outcomes

Maximal rate of force development (RFD) of isometric squat (MIS)

Force (N) over time (msec) for the maximum slope of the first 20% of the movement

Time frame: % change from baseline to week 1, week 2 and week 3

Counter-movement jump (CMJ) rate of force development (RFD)

CMJ jump performance N/s/kg

Time frame: % change from baseline to week 1, week 2 and week 3

Squat jump height rate of force development (RFD)

Squat jump height performance RFD/kg

Time frame: % change from baseline to week 1, week 2 and week 3

Data from ClinicalTrials.gov

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