Specific Adaptation to Imposed
Demands (SAID) Stages
- Stress (stimulus)
- Exercise / Physical Activity
- Adaptation (response)
- Specific responsive biological adjustment to stress
- If stress is too great, or sufficient recovery time not allowed
- adaptation may be inhibited
- decrement in capacity of physiological systems
- Adaptation response will begin to slow if the exact same
stimulus is continued for a prolonged period of time.
- Adaptation is complete after limited time span
- Continued stimulus no longer elicits adaptation
- Other example (epidermis):
- Sun: sunburn or increase melanin
- Friction: blister / abrasion or callus
- Training effects are specific to the muscle groups used during
training and the type of training program implemented (Fox 1975).
- Training specifically for the movement pattern, speed, joint
position, speed, and type of contraction produces improvement,
specifically in those movement parameters (Kreighbaum 1996).
- Specific sport or activity yields greatest improvements
- Supplement activity or sports training with resistance, cardiovascular,
plyometrics, flexibility exercises
- Utilize progression and periodization techniques
- Also see Adaptation Criteria.
- Adaptation is specific to :
- Type of training
- Speed of contraction
- Metabolic pathways utilized
- Time exercising
- Recovery between bouts or work intervals
- Number of reps
- Number of exercises and sets
Fox E, McKenzie D, Cohen K. (1975). Specificity of training:
metabolic and circulatory responses. Med Sci Sports, 7(1):83.
Kreighbaum, E., Barthels KM (1996). Biomechanics; A Qualitative
Approach for Studying Human Movement, Allyn & Bacon, 4.