- FITT principle
- Frequency, Intensity, Time, Type — the four variables that define an exercise prescription.
- Progressive overload
- Gradually increasing the demand placed on the body over time so adaptation continues. Without it you plateau.
- Specificity (SAID principle)
- Specific Adaptations to Imposed Demands — the body adapts to the exact type of stress placed on it.
- Macrocycle
- The full periodized training plan, often about one year, made up of several mesocycles.
- Mesocycle
- A training block of weeks to a few months with a specific focus (e.g. hypertrophy, strength).
- Microcycle
- The shortest training cycle, usually about one week — the individual sessions in a mesocycle.
- Periodization
- Planned variation of training over time to maximize adaptation and manage fatigue.
- Rep range for muscular endurance
- ≥12–15+ reps at ≤67% 1RM with short rest (≤30 s).
- Rep range for hypertrophy
- 6–12 reps at 67–85% of 1RM with 30–90 s rest.
- Rep range for maximal strength
- 1–6 reps at ≥85% of 1RM with 2–5 min rest.
- Rest interval for maximal strength
- 2–5 minutes — long rest allows the phosphagen system to recover for heavy lifts.
- General preparation phase
- An early training phase that uses higher volume and lower intensity to build a base.
- Acute training variables
- Sets, reps, load/intensity, tempo, rest, volume, and frequency — the dials of program design.
- 1RM (one-rep max)
- The maximum weight that can be lifted for a single repetition; intensity is often set as a % of 1RM.
- External (outcome) cue
- A coaching cue focused on the effect of a movement (e.g. 'push the floor away'); often improves motor learning over internal cues.
- Valsalva maneuver
- Forced exhalation against a closed airway during a lift; spikes blood pressure and reduces venous return — caution in older/hypertensive clients.
- Bracing
- Tightening the core musculature to stabilize the spine and transfer force safely during a lift.
- Neutral spine
- The natural curvature of the spine maintained during lifting to protect the back and transfer load efficiently.
- Spotting
- Assisting a lifter for safety — especially over the face or overhead — and helping complete or rack a rep.
- Motor learning
- The process by which practice makes a movement pattern more automatic and consistent.
- Demonstration (modeling)
- Showing the correct movement so the client can copy it — a core instructional technique.
- Correcting technique
- Fix one fault at a time, regress load or range if needed, and re-cue before progressing.
- Sagittal plane
- Divides the body into left and right; movement is forward/backward (flexion/extension), e.g. a squat or curl.
- Frontal plane
- Divides the body into front and back; movement is side-to-side (abduction/adduction), e.g. a lateral raise.
- Transverse plane
- Divides the body into top and bottom; movement is rotational (about the vertical axis), e.g. a cable woodchop.
- Prime mover (agonist)
- The muscle chiefly responsible for producing a movement; opposed by the antagonist.
- Antagonist
- The muscle that opposes the prime mover; e.g. the triceps during a biceps curl.
- Concentric action
- A muscle shortens while producing force — the lifting phase of a rep.
- Eccentric action
- A muscle lengthens under load — the controlled lowering phase; the main driver of soreness.
- Isometric action
- A muscle produces force with no change in length — a held position like a plank.
- Diarthrosis (synovial joint)
- A freely movable joint, such as the shoulder or knee.
- Open vs closed kinetic chain
- Open: the distal end moves freely (leg extension). Closed: the distal end is fixed (squat).
- Prime mover of hip extension
- The gluteus maximus (e.g. during a hip thrust).
- Kinetic chain
- The integrated muscular, skeletal, and nervous systems working together to produce and control movement.
- PAR-Q+
- Physical Activity Readiness Questionnaire — a pre-exercise self-screen that flags clients who need medical clearance.
- Risk stratification
- Classifying a client's risk from signs, symptoms, and known disease to decide whether physician clearance is needed.
- Medical clearance
- Physician approval to exercise; required when screening flags a potential risk before testing or training.
- Subjective vs objective data
- Subjective: history, goals, lifestyle (gathered first). Objective: measured values like HR, BP, body composition.
- Sit-and-reach test
- A field test of lower-back and hamstring flexibility.
- No consent → action
- If a client has not given informed consent, do NOT conduct the test — obtain consent first.
- Resting heart rate
- Heart rate at complete rest; a baseline objective measure of cardiovascular status.
- Girth measurements
- Circumference measurements (e.g. waist, hip) used to track body-composition change over time.
- Five health-related fitness components
- Cardiorespiratory endurance, muscular strength, muscular endurance, flexibility, and body composition.
- Cardiorespiratory endurance
- The ability of the heart, lungs, and circulation to sustain prolonged physical activity.
- Muscular endurance
- The ability of a muscle to repeat or sustain contractions over time.
- Flexibility
- The range of motion available at a joint or series of joints.
- Body composition
- The relative proportions of fat mass and lean (fat-free) mass in the body.
- Estimated maximum heart rate
- Commonly estimated as 220 − age; an average, so it is an estimate, not an exact value.
- HRmax for a 40-year-old
- 220 − 40 = about 180 beats per minute (estimate).
- Target heart-rate zone
- A percentage range of max HR (or heart-rate reserve) chosen to match a cardiorespiratory goal.
- Lean body mass
- Total body mass minus fat mass — everything except fat.
- Karvonen (HRR) method
- Target HR = (HRmax − resting HR) × intensity% + resting HR; an individualized zone calculation.
- Phosphagen (ATP-PC) system
- Supplies ATP for short, maximal efforts (~0–10 s) without oxygen, using stored ATP and creatine phosphate.
- Glycolytic system
- Breaks down glucose/glycogen for high-intensity work (~10 s–2 min); pyruvate → lactate when oxygen is short.
- Oxidative (aerobic) system
- Uses oxygen to break down carbohydrate and fat for sustained activity (2+ min); pyruvate enters the Krebs cycle.
- Fate of pyruvate (anaerobic)
- When oxygen is in short supply, pyruvate is converted to lactate.
- Fate of pyruvate (aerobic)
- When oxygen is plentiful, pyruvate enters the mitochondria and the Krebs cycle.
- Ventilatory threshold
- The intensity at which ventilation rises disproportionately to oxygen uptake (VO2).
- ATP
- Adenosine triphosphate — the body's immediate energy currency for muscular work.
- Glycolytic system effort duration
- Predominates in maximal efforts lasting roughly up to one minute.
- Mitochondrial biogenesis
- The increase in mitochondria from aerobic training, improving oxidative energy production.
- Energy balance
- The relationship between calories consumed and calories expended; determines weight change.
- Caloric deficit
- Eating fewer calories than you burn — the foundation of fat loss.
- Calories per pound of fat
- About 3,500 kcal ≈ 1 pound of body fat.
- Recommended rate of fat loss
- A moderate deficit (~500 kcal/day → ~1 lb/week) preserves lean mass and adherence.
- Positive energy balance
- Intake exceeds expenditure → weight gain (muscle with training, fat in excess).
- 500 kcal/day deficit result
- About one pound of fat loss per week (500 × 7 = 3,500 kcal).
- Weight-loss plateau
- Slowed loss as a lower body mass burns fewer calories; requires a renewed deficit or more activity.
- Macronutrients
- Carbohydrate, protein, and fat — the energy-providing nutrients.
- Calories per gram of carbohydrate
- 4 calories per gram.
- Calories per gram of protein
- 4 calories per gram.
- Calories per gram of fat
- 9 calories per gram.
- Dietary Calorie (kcal)
- The energy required to raise 1 kilogram (1 liter) of water by 1 °C.
- Triglyceride
- The main storage form of fat — one glycerol molecule plus three fatty acids.
- Complete protein
- A protein containing all nine essential amino acids (e.g. eggs).
- Hydration and performance
- Even mild dehydration impairs performance; trainers give general hydration guidance.
- Training older adults
- Use moderate loads, controlled movement, balance/functional work, and avoid the Valsalva maneuver.
- Pregnancy exercise caution
- Avoid the supine position after the first trimester (risk of vena cava compression).
- Controlled chronic conditions
- Many special-population clients need physician clearance before higher-intensity exercise.
- Fall-risk reduction
- Balance and functional training are emphasized for older adults to lower fall risk.
- Scope of practice
- What a CPT may do (screen, assess, program, instruct, give general nutrition guidance) vs must refer (diagnose, treat, prescribe diets).
- Informed consent
- A document explaining the purpose, procedures, risks, and benefits so a client can voluntarily agree before participating.
- Liability waiver
- Releases the trainer from certain claims, but must be clear and conspicuous and does not excuse negligence.
- Refer out
- Send the client to a qualified professional (physician, RD, physical therapist) for needs outside your scope.
- Documentation
- Keeping records of screening, programs, and sessions — part of professional risk management.
- Training volume
- Total work performed, commonly sets × reps × load; the primary driver of hypertrophy when progressively increased.
- Training intensity
- The magnitude of effort, usually expressed as a percentage of 1RM for resistance work or %HRmax for cardio.
- Training density
- The amount of work performed per unit of time; raising density (more work, same time or less rest) increases the metabolic challenge.
- Linear periodization
- Progressively increasing intensity while decreasing volume across successive training phases (e.g. endurance → hypertrophy → strength → power).
- Undulating periodization
- Varying volume and intensity frequently, often within the same week, to train multiple qualities concurrently.
- Rep range for power
- 1–6 explosive reps at 30–60% of 1RM (speed-strength) or higher loads for strength-speed, with full rest between sets.
- Repetition tempo
- The cadence of a rep expressed as eccentric–pause–concentric–pause seconds (e.g. 2-0-1-0); controls time under tension.
- Time under tension
- The total duration a muscle is loaded during a set; a programming lever influencing the hypertrophic and metabolic stimulus.
- Superset
- Two exercises performed back-to-back with little or no rest, often pairing agonist and antagonist muscle groups to save time.
- Drop set
- Continuing a set past failure by immediately reducing the load and performing more reps to extend the stimulus.
- Circuit training
- Moving through a series of exercises with minimal rest to combine resistance work with a cardiovascular and metabolic stimulus.
- Split routine
- Dividing training across sessions by body part or movement pattern (e.g. upper/lower, push/pull) to manage volume and recovery.
- Full-body routine
- Training all major muscle groups in each session; well suited to beginners and time-limited clients.
- Exercise order
- Sequence exercises large-to-small: power and multi-joint lifts early when fresh, single-joint and core work later.
- Detraining
- The reversible loss of training adaptations when the stimulus is removed; reversibility is the 'use it or lose it' principle.
- Overtraining syndrome
- A maladaptive state from excessive training and inadequate recovery, marked by performance decline, fatigue, and mood changes.
- Deload week
- A planned reduction in volume and/or intensity to dissipate fatigue and allow supercompensation before the next block.
- General Adaptation Syndrome
- Selye's model of stress response — alarm, resistance, exhaustion — underpinning how training stress drives adaptation or overtraining.
- Repetitions in reserve (RIR)
- An autoregulation tool estimating how many more reps could be performed before failure; lower RIR means higher effort.
- FITT-VP principle
- An expansion of FITT adding Volume and Progression to the Frequency, Intensity, Time, and Type of an exercise prescription.
- Warm-up
- A preparatory period raising core/muscle temperature and rehearsing movement to improve performance and reduce injury risk.
- Cool-down
- Low-intensity activity after training that aids venous return, prevents blood pooling, and gradually lowers heart rate.
- Internal (process) cue
- A coaching cue directing attention to a body part or muscle (e.g. 'squeeze your glutes'); useful early in skill acquisition.
- Knowledge of results
- Feedback about the outcome of a movement (e.g. weight lifted, time) provided after the attempt to guide learning.
- Knowledge of performance
- Feedback about the quality of the movement pattern itself (technique and form) rather than its outcome.
- Cognitive stage of learning
- The first stage of motor learning — many errors, high attention demand, and reliance on the trainer's instruction.
- Associative stage of learning
- The middle stage — fewer errors, refinement of the pattern, and greater consistency as the client practices.
- Autonomous stage of learning
- The final stage — the movement is automatic, requiring little conscious attention so focus can shift to performance.
- Blocked practice
- Repeating the same task repeatedly; improves immediate performance and suits early learners acquiring a new skill.
- Random practice
- Interleaving different tasks within a session; slows initial gains but improves long-term retention and transfer.
- Movement regression
- Simplifying an exercise (less load, range, or complexity) when a client cannot perform it safely with good form.
- Movement progression
- Advancing an exercise in load, range, complexity, or instability once a client has mastered the current version.
- SMART goals
- Specific, Measurable, Attainable, Relevant, and Time-bound objectives used to structure and track client progress.
- Intrinsic motivation
- Drive that comes from internal satisfaction (enjoyment, mastery); tends to support long-term exercise adherence.
- Extrinsic motivation
- Drive from external rewards or pressures (prizes, appearance, approval); useful short-term but less durable.
- Stages of Change (Transtheoretical Model)
- Precontemplation, contemplation, preparation, action, and maintenance — stages describing readiness to adopt behavior.
- Self-efficacy
- A client's belief in their ability to succeed at a task; strongly predicts exercise behavior and adherence.
- Active listening
- Fully attending to a client, reflecting back what they say, and clarifying to build rapport and understand needs.
- Rapport
- A trusting, positive trainer–client relationship that increases adherence, honesty in reporting, and program success.
- Positive reinforcement
- Adding a desirable consequence (praise, encouragement) after a behavior to increase its likelihood of recurring.
- Verbal vs visual instruction
- Pair concise verbal cues with a clear demonstration; most learners acquire movement faster when they see and hear it.
- Functional anatomy
- The study of how muscles, bones, and joints work together to produce and control movement during exercise.
- Synergist
- A muscle that assists the prime mover in producing a movement or refining its direction of pull.
- Stabilizer
- A muscle that contracts to fix a joint or body segment so the prime mover can act efficiently (e.g. core during a lift).
- Origin and insertion
- Origin is a muscle's fixed (usually proximal) attachment; insertion is the movable (usually distal) attachment that moves toward the origin.
- Reciprocal inhibition
- When a prime mover contracts, the nervous system relaxes its antagonist to allow smooth movement.
- Length-tension relationship
- A muscle generates maximal force at an optimal length; force falls when it is overly shortened or lengthened.
- Force-velocity relationship
- Concentric force decreases as shortening velocity increases; muscles produce the most force during slow or eccentric actions.
- Lever system
- A bone (lever) pivoting at a joint (fulcrum) moved by muscle force; most body levers are third-class, favoring speed and range over force.
- Torque
- The rotational force on a joint, equal to force times the perpendicular distance to the joint (moment arm).
- Rotator cuff
- Four muscles — supraspinatus, infraspinatus, teres minor, subscapularis — that stabilize the glenohumeral (shoulder) joint.
- Core musculature
- Muscles of the trunk (transverse abdominis, multifidus, erector spinae, obliques, pelvic floor, diaphragm) that stabilize the spine and pelvis.
- Sliding filament theory
- Muscle shortens as actin and myosin filaments slide past one another via cross-bridge cycling, powered by ATP.
- Motor unit
- A single motor neuron and all the muscle fibers it innervates; recruited progressively to grade force output.
- Muscle fiber types
- Type I (slow-twitch, fatigue-resistant, aerobic) and Type II (fast-twitch, powerful, fatigable, anaerobic) fibers.
- Static postural assessment
- Observing standing alignment from anterior, lateral, and posterior views to identify muscle imbalances and deviations.
- Dynamic movement assessment
- Evaluating movement quality during tasks like the overhead squat to reveal compensations and joint dysfunction.
- Overhead squat assessment
- A movement screen exposing ankle, hip, and shoulder mobility/stability limits through compensations such as knee valgus or arms falling forward.
- Body Mass Index (BMI)
- Weight in kilograms divided by height in meters squared; a population screen for weight status that does not distinguish fat from muscle.
- Waist-to-hip ratio
- Waist circumference divided by hip circumference; a higher ratio indicates android (abdominal) fat and greater cardiometabolic risk.
- Skinfold measurement
- Using calipers to measure subcutaneous fat at standardized sites to estimate percent body fat.
- Bioelectrical impedance analysis
- Estimates body composition by passing a low electrical current through the body; readings are affected by hydration status.
- Rockport walk test
- A submaximal field test estimating VO2max from the time and heart rate to walk one mile.
- YMCA 3-minute step test
- A submaximal cardiorespiratory test using recovery heart rate after stepping to estimate fitness.
- Blood pressure classification
- Normal is below 120/80 mmHg; elevated and the stages of hypertension are defined by progressively higher systolic/diastolic values.
- Rating of Perceived Exertion (RPE)
- A subjective scale (e.g. Borg 6–20 or 0–10) rating exercise intensity; useful when heart rate is unreliable.
- Push-up test
- A field assessment of upper-body muscular endurance counting properly performed push-ups to fatigue.
- Goniometer
- An instrument that measures the range of motion in degrees at a joint during flexibility assessment.
- VO2max
- The maximum rate of oxygen the body can use during intense exercise; the gold-standard measure of cardiorespiratory fitness.
- MET (metabolic equivalent)
- A unit of energy cost where 1 MET equals resting oxygen uptake (~3.5 mL O2/kg/min); activities are rated in multiples of it.
- Heart-rate reserve (HRR)
- The difference between maximum and resting heart rate; used in the Karvonen method to set individualized intensity zones.
- Physical activity guidelines
- Adults should perform at least 150 minutes of moderate (or 75 minutes of vigorous) aerobic activity weekly plus 2 days of resistance training.
- Muscular strength
- The maximal force a muscle or muscle group can generate in a single effort, often assessed by a 1RM.
- Power
- The rate of performing work — force times velocity; the ability to produce force quickly, as in a jump or throw.
- Agility
- A skill-related component of fitness: the ability to change direction rapidly while maintaining control.
- Balance
- A skill-related fitness component: maintaining the body's center of mass over its base of support, static or dynamic.
- Coordination
- A skill-related component: integrating the senses and movements to perform tasks smoothly and accurately.
- Cardiac output
- The volume of blood the heart pumps per minute — heart rate multiplied by stroke volume; rises to meet exercise demand.
- Stroke volume
- The amount of blood ejected by the left ventricle per beat; endurance training increases it, lowering resting heart rate.
- Blood pressure response to exercise
- Systolic pressure rises with aerobic intensity while diastolic stays roughly stable; a falling systolic during exertion is a warning sign to stop.
- Rate-pressure product
- Heart rate multiplied by systolic blood pressure; an index of myocardial oxygen demand during exercise.
- EPOC
- Excess post-exercise oxygen consumption — the elevated oxygen uptake after exercise as the body restores homeostasis; greater after high-intensity work.
- Lactate threshold
- The exercise intensity at which blood lactate accumulates faster than it can be cleared; training raises this threshold.
- Oxygen deficit
- The lag at the start of exercise before aerobic metabolism fully meets energy demand, covered by anaerobic systems.
- Krebs cycle
- A series of mitochondrial reactions in aerobic metabolism that produce electron carriers (NADH, FADH2) feeding the electron transport chain.
- Electron transport chain
- The final aerobic pathway where oxygen accepts electrons to generate the bulk of ATP via oxidative phosphorylation.
- Gluconeogenesis
- The synthesis of new glucose from non-carbohydrate sources (e.g. amino acids, lactate) when carbohydrate is scarce.
- Beta-oxidation
- The breakdown of fatty acids into acetyl-CoA for entry into the Krebs cycle, supplying ATP during prolonged low-intensity work.
- Cori cycle
- The pathway by which lactate produced in muscle travels to the liver and is converted back into glucose.
- Muscle hypertrophy mechanisms
- Mechanical tension, metabolic stress, and muscle damage stimulate protein synthesis and fiber growth following resistance training.
- Neural adaptations
- Early strength gains from improved motor-unit recruitment, firing rate, and coordination before measurable muscle growth occurs.
- Thermoregulation
- The body's regulation of core temperature during exercise, primarily through sweating and increased skin blood flow.
- Basal metabolic rate (BMR)
- The energy the body uses at complete rest to sustain vital functions; the largest component of daily energy expenditure.
- Total daily energy expenditure (TDEE)
- All calories burned in a day — BMR plus the thermic effect of food plus physical activity and exercise.
- Thermic effect of food (TEF)
- The energy used to digest, absorb, and metabolize food, roughly 10% of intake; protein has the highest thermic effect.
- Non-exercise activity thermogenesis (NEAT)
- Calories burned through everyday movement outside formal exercise (fidgeting, walking, posture); a meaningful weight-management lever.
- Set point theory
- The idea that the body defends a preferred weight through metabolic and appetite adjustments, making sustained loss harder.
- Essential body fat
- The minimum fat required for normal physiological function — roughly 3–5% for men and 8–12% for women.
- Visceral fat
- Fat stored around the abdominal organs; strongly linked to metabolic and cardiovascular disease risk.
- Spot reduction myth
- The false belief that exercising a body region burns fat from that area; fat loss occurs systemically via overall energy deficit.
- Lean mass preservation
- Combining a moderate deficit, adequate protein, and resistance training during weight loss to retain muscle and protect metabolic rate.
- Essential amino acids
- Nine amino acids the body cannot synthesize and must obtain from the diet; required for muscle protein synthesis.
- Glycemic index
- A ranking of how quickly a carbohydrate raises blood glucose; lower-GI foods produce a slower, steadier rise.
- Simple vs complex carbohydrates
- Simple carbs (sugars) digest quickly for fast energy; complex carbs (starches, fiber) digest slowly for sustained energy.
- Dietary fiber
- Indigestible plant carbohydrate that aids digestion, promotes satiety, and helps regulate blood glucose and cholesterol.
- Saturated vs unsaturated fat
- Saturated fats are solid at room temperature and raise LDL when high; unsaturated fats (mono/poly) support heart health.
- Micronutrients
- Vitamins and minerals needed in small amounts for metabolism, bone health, immune function, and energy production.
- Protein intake for active people
- Roughly 1.2–2.0 g of protein per kilogram of body weight daily supports recovery and muscle maintenance in trained individuals.
- Pre- and post-exercise nutrition
- Carbohydrate before fuels performance; carbohydrate plus protein after supports glycogen replenishment and muscle repair.
- Exercise for hypertension
- Emphasize moderate aerobic activity, avoid the Valsalva maneuver and heavy isometrics, and monitor blood pressure response.
- Exercise for type 2 diabetes
- Combine aerobic and resistance training to improve glucose control; watch for hypoglycemia and inspect feet for sores.
- Exercise for osteoporosis
- Use weight-bearing and resistance exercise to support bone density while avoiding loaded spinal flexion and high fall risk.
- Exercise-induced asthma
- Bronchoconstriction triggered by exercise; manage with a thorough warm-up, prescribed inhaler use, and avoiding cold/dry-air triggers.
- Youth resistance training
- Supervised resistance training is safe and beneficial for children when it emphasizes technique and submaximal loads over maximal lifts.
- Negligence
- Failure to provide the standard of care a reasonable trainer would, resulting in client harm — a primary professional liability risk.
- Professional liability insurance
- Coverage protecting a trainer against claims of injury or negligence arising from their professional services.
- Emergency action plan
- A written, rehearsed protocol for responding to medical emergencies, including roles, EMS activation, and AED/first-aid procedures.