Basic and Applied Sciences
Basic and Applied Sciences underpins every coaching decision a group personal training specialist makes: anatomy, kinesiology, biomechanics, exercise physiology, and the principles explaining why a body adapts. The exam tests whether you can use those principles to justify a choice made for several people at once, not isolated facts.
Principles that drive adaptation
- Overload, progression, specificity, reversibility. Adaptation needs stress above current capacity, applied gradually, specific to the goal. Groups tempt you to add volume for everyone; progression must stay individual inside a shared session.
- SAID principle - the body adapts to the specific demands imposed.
- General Adaptation Syndrome: alarm, resistance, exhaustion. Programming that never allows recovery produces plateau and overtraining.
- OPT model logic: stabilization (phase 1), strength (phases 2–4), power (phase 5). Group sessions default to phases 1 and 2 because those parameters tolerate the widest range of fitness levels.
Energy systems in a group setting
ATP-PC fuels short bursts; glycolysis dominates 30 s–2 min intervals; the oxidative system supports longer work. Circuit formats alternating stations create intermittent demand, so heart rate stays elevated while local muscular fatigue is distributed across muscle groups.
Worked example
A mixed-ability group of eight does a 12-station circuit. Two members are deconditioned; three are recreational lifters. Beginners get 1–2 sets, 12–20 reps, 4/2/1 tempo and 0–60 s rest (phase 1 parameters). The lifters get a 2/0/2 tempo, 60–90 s rest and a load making the last two reps challenging (phase 2). Same exercises, different acute variables, so specificity and overload are satisfied for both.
Traps
Confusing fatigue with overload; prescribing plyometrics to untrained groups; assuming sweat equals intensity; ignoring the recovery side of GAS.