Consumption of whole eggs has recently been shown to stimulate muscle protein synthesis to a greater degree than consumption of egg whites after a resistance training session. It is theorized that the egg yoke contains bio-active nutrients that enhance the protein provided by egg whites. The study will evaluate the effect of whole egg powder compared to whey protein powder and placebo over 12 weeks of resistance training in men and women who are participating in resistance training programs.
Consuming whole eggs after resistance training sessions appears to be more effective for simulating muscle protein synthesis that simply consuming egg whites. The egg yolks might enhance the effect of protein derived from egg whites. The study will compare post-exercise supplementation with about 30 grams of protein derived from whole egg powder versus whey protein powder and placebo (maltodextrin) over a 12-week resistance training program. Resistance-trained men and women (n=120) will be randomized to consume either the whole-egg powder, whey protein powder or maltodextrin after resistance training 6 times per week for 12 weeks. The primary outcome measure is change in lean tissue mass. Secondary measures include change in fat mass, change in arm and leg muscle thickness, change in bench press, squat, and knee extension strength, and change in fasting blood glucose.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
QUADRUPLE
Enrollment
115
Nutritional supplementation during a 12 week resistance training program
Nutritional supplementation during a 12 week resistance training program
Nutritional supplementation during a 12 week resistance training program
University of Regina
Regina, Saskatchewan, Canada
University of Saskatchewan
Saskatoon, Saskatchewan, Canada
Change in lean tissue mass
Lean tissue mass measured by DXA
Time frame: 12 weeks
Change in fat mass
Fat mass measured by DXA
Time frame: 12 weeks
Change in biceps muscle thickness
biceps muscle thickness measured by ultrasound
Time frame: 12 weeks
Change in triceps muscle thickness
triceps muscle thickness measured by ultrasound
Time frame: 12 weeks
Change in quadriceps muscle thickness
quadriceps muscle thickness measured by ultrasound
Time frame: 12 weeks
Change in hamstrings muscle thickness
hamstrings muscle thickness measured by ultrasound
Time frame: 12 weeks
Change in bench press strength
Bench press strength (kg)
Time frame: 12 weeks
Change in leg squat strength
Leg squat strength (kg)
Time frame: 12 weeks
Change in knee extension strength
Isokinetic knee extension torque
Time frame: 12 weeks
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Change in fasting glucose
Fasting glucose
Time frame: 12 weeks