In this episode, Dr. Layne Norton sits down with Professor Bill Campbell, PhD — Director of the Performance & Physique Enhancement Laboratory at the University of South Florida and a leading researcher on body composition, high-protein diets, and resistance training adaptations.
They discuss Bill’s high-protein studies in women (including physique athletes, contest prep, older adults, and time-restricted eating), sex differences in muscle growth and training adaptations, the menstrual cycle’s impact on performance, intermittent energy restriction, refeeds and diet breaks, and one major belief he completely changed his mind on (meal frequency).
Packed with practical, evidence-based insights on optimizing body composition, fat loss, and strength.
SPONSORS
• Workout Builder – Customized training programs for all experience levels: https://biolayne.com/workout-builder
• Team Biolayne – One-On-One Coaching: https://biolayne.com/online-coaching
LAYNE'S COMPANIES
Carbon Diet Coach: https://joincarbon.com/podcast
Outwork Nutrition: https://outworknutrition.com
REPS Research Review: https://biolayne.com/reps
Workout Builder: https://biolayne.com/workout-builder
Team Biolayne: https://biolayne.com/online-coaching
Physique Coaching Academy: https://physiquecoachingacademy.com
FOLLOW LAYNE
http://www.facebook.com/laynenorton
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TIMESTAMPS
0:00:00 - Intro
0:02:53 - Career History
0:10:58 - What is the Focus of Your Lab?
0:15:48 - Physique Coaching Academy
0:16:49 - High vs Low Protein Study
0:36:45 - REPS Research Review
0:40:19 - Animal vs Human Studies
0:43:22 - Importance of Leucine
0:45:55 - Arginine & Growth Hormone
0:49:14 - Should Women Train Differently
0:54:34 - Device Trackers vs Subjective Feelings
0:57:38 - Squats
1:04:48 - Injuries
1:07:41 - Training Volume
1:13:30 - Refeeds and Diet Breaks
1:32:32 - Meal Frequency
1:36:25 - Outro
SHOW NOTES
https://biolayne.com/podcasts/dr-layne-norton-podcast/
