The purpose of this study is to determine how anabolic sensitivity, in response to the ingestion of a liquid protein meal, differs across the lifespan, between biological sexes, and with varying physical activity levels.
Healthy will be defined as screened by the PAR-Q+ (The Physical Activity Readiness Questionnaire for everyone)
Chronological age for Healthy Young (age: 18-35 years) or Older (age: 60-80 years) adults
Chronological age between 8 to 16 years, with maturity offset < -1 year from age of Peak Height Velocity (aPHV) for children and between -0.5 to +1.5 years from aPHV in adolescent participants
BMI between normal to overweight (18.5 - 29.9 kg/m2)
Regular use of nonsteroidal anti-inflammatory dugs (with the exception of daily low-dose aspirin)
use of anticoagulants
use of a walker, cane, or assistive walking device
infectious or gastrointestinal disease