Fitness
Concurrent Training Interference
When high-volume endurance and strength training compete for gains—manageable with spacing, nutrition, and realistic volume for most recreational athletes.
Concurrent training interference is the partial conflict when heavy endurance and heavy strength compete for adaptation—more relevant at high volumes than casual pairing. Separating hard runs and max lifts by several hours, prioritizing one quality per season, and keeping nutrition high blunt the effect.
Recreational lifters doing moderate cardio rarely max out interference.
Common questions
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Does cardio kill muscle gains?
Moderate cardio rarely kills gains. Very high mileage plus aggressive deficits and poor protein spacing is where interference shows up—separate hard days and fuel adequately.
Related terms
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