This study seeks to compare the observed changes in resistance training adaptations (strength, performance, body composition, recovery, and lactate responses) after supplementation of isocaloric and isonitrogenous amounts of a novel plant protein formulation against changes observed in a pea/rice plant protein blend, whey protein, and a carbohydrate placebo in healthy resistance-trained men and women between the ages of 18-39.
This study seeks to compare the observed changes in resistance training adaptations (strength, performance, body composition, recovery, and lactate responses) after supplementation of isocaloric and isonitrogenous amounts of a novel plant protein formulation against changes observed in a pea/rice plant protein blend, whey protein, and a carbohydrate placebo in healthy resistance-trained men and women between the ages of 18-39.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
TRIPLE
Enrollment
60
Novel plant protein blend containing 30 grams of protein.
Pea/Rice protein blend containing 30 grams of protein
Whey concentrate protein blend containing 30 grams of protein
Exercise and Performance Nutrition Laboratory
Saint Charles, Missouri, United States
Change in 4-Compartment Lean Mass
Lean mass will be assessed using a 4-compartment model, which includes measurements of body density, total body water, and bone mineral content.
Time frame: Week 0, Week 4, and Week 8
Change in Perceptual Indicators of Training State
Participants will rate their readiness to train, soreness, recovery, energy, and sleep quality using 100-mm visual analog scales. Each scale is anchored with contextually appropriate statements such as "Lowest Possible" and "Highest Possible."
Time frame: Week 0, Week 4, and Week 8
Change in Profile of Mood States (POMS) Score
Mood state will be assessed using the Profile of Mood States (POMS) questionnaire, a validated tool for measuring transient affective states. The POMS consists of six subscales (Tension-Anxiety, Depression-Dejection, Anger-Hostility, Vigor-Activity, Fatigue-Inertia, and Confusion-Bewilderment), with a Total Mood Disturbance (TMD) score calculated by summing negative subscale scores and subtracting the Vigor score. Higher TMD scores indicate greater mood disturbance, while lower scores indicate improved mood state.
Time frame: Week 0, Week 4, and Week 8
Change in Pressure to Pain Threshold
Pressure pain threshold will be assessed using a digital algometer to determine the minimum pressure required to elicit pain. Higher scores indicate higher tolerance to pain.
Time frame: Week 0, Week 4, and Week 8
Change in Handgrip Strength
Maximal handgrip strength will be assessed using a calibrated hand dynamometer. Higher values indicate greater strength.
Time frame: Week 0, Week 4, and Week 8
Change in Isometric Mid-Thigh Pull Force
Maximal force output will be assessed using an isometric mid-thigh pull on a force plate, measured in Newtons. Higher scores equal greater force production
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Maltodextrin placebo
Time frame: Week 0, Week 4, and Week 8
Change in Hex Bar Deadlift One-Repetition Maximum (1RM)
Maximal hex bar deadlift strength will be assessed using a standardized one-repetition maximum (1RM) test.
Time frame: Week 0, Week 4, and Week 8
Change in Bench Press One-Repetition Maximum (1RM
Maximal upper-body strength will be assessed using a standardized one-repetition maximum (1RM) bench press test.
Time frame: Week 0, Week 4, and Week 8
Change in Isokinetic Peak Knee Extension Torque
Peak torque of the quadriceps will be assessed using an isokinetic dynamometer. Higher values indicate greater knee extensor strength.
Time frame: Week 0, Week 4, and Week 8
Performance in 5 Sets of Hex Bar Deadlift Protocol
Strength endurance will be assessed using a hex bar deadlift protocol consisting of 3 sets of 10 repetitions at 70% 1RM and 2 sets to failure at 80% 1RM. Repetition count and total volume lifted will be recorded.
Time frame: Week 0, Week 4, and Week 8
Change in 4-Compartment Fat Mass
Fat mass will be measured using a 4-compartment model, which integrates body density, total body water, and bone mineral content.
Time frame: Week 0, Week 4, and Week 8
Change in 4-Compartment Fat-Free Mass
Fat-free mass will be assessed using a 4-compartment model, providing a more precise measurement of body composition changes.
Time frame: Week 0, Week 4, and Week 8
Change in 4-Compartment Percent Body Fat
Body fat percentage will be assessed using a 4-compartment model.
Time frame: Week 0, Week 4, and Week 8
Change in Total, Extracellular, and Intracellular Body Water
Hydration status will be measured using bioelectrical impedance analysis (BIA) to assess total, extracellular, and intracellular body water content.
Time frame: Week 0, Week 4, and Week 8
Change in Dry Fat-Free Mass
Dry fat-free mass will be assessed using a combination of dual-energy X-ray absorptiometry (DEXA) and bioelectrical impedance analysis (BIA) for a comprehensive measure of lean tissue mass.
Time frame: Week 0, Week 4, and Week 8