The phase of a repetition in which the working muscle shortens while producing force.
Why Concentric matters
Understanding the lifting phase helps clarify tempo instructions and exercise technique.
A practical example
The upward portion of a biceps curl is concentric for the biceps.
Common mistake
Assuming the concentric phase must always be deliberately slow.
Keep the context in mind.
Training and nutrition terms describe general principles. The right exercise, intensity or food target still depends on your experience, health, goals and schedule.
Personalised coaching
Apply the principle to your own training.
A definition is useful, but your programme still needs to match your experience, schedule, recovery and goals.
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