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Training

SAID Principle

Specific Adaptation to Imposed Demands - the body adapts specifically to training stresses.

SAID (Specific Adaptation to Imposed Demands) is a fundamental training principle stating that the body will adapt specifically to the stresses placed upon it. Heavy weight training produces strength adaptations; endurance training produces cardiovascular adaptations. This principle underlies all effective program design and exercise selection.

Examples

  • Want bigger muscles? Train for hypertrophy
  • Want to run faster? Do speed work
  • Body adapts to what you ask of it

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