personal‑trainer exams

NASM-CPT · blueprint domain 1 of 6

NASM-CPT Basic & Applied Sciences and Nutrition, 15% of the exam

Anatomy, exercise physiology, biomechanics and nutrition, spread over 19 knowledge statements: one of the two longest topic lists on the blueprint. The questions stay applied. They ask what a muscle does in a movement or which energy system a drill relies on, not where a muscle attaches.

  • 15%of the scored items
  • K1–K19knowledge statements
  • 17questions on this page
01

Nineteen statements, grouped by question type

K1–K19, grouped the way questions use them:

  • Anatomy and physiology (K1–K2): the nervous, muscular, skeletal, cardiorespiratory, endocrine and digestive systems, plus bioenergetics and exercise metabolism.
  • Biomechanics and human movement science (K3–K4): levers, force and torque. Planes of motion; concentric, eccentric and isometric action; force-couples; length-tension; the stretch-shortening cycle; reciprocal and autogenic inhibition.
  • Motor learning and control (K5).
  • Energy (K10–K12): the ATP-PC, glycolytic and oxidative systems, EPOC, and kcal versus Calorie.
  • Nutrition basics (K6–K9, K13–K15): macronutrients, micronutrients, hydration, energy intake and expenditure, dietary reference intakes, portions, meal timing, nutrient density.
  • Diets, supplements and labels (K16–K18): fad diets, the risks and uses of common supplements, food and supplement label reading.
  • Weight management physiology (K19): energy balance, sleep, endocrine issues, medications.

Source: NASM CPT exam blueprint, domain 1 (K1–K19) · checked 19 Oct 2026

02

Sciences and nutrition questions

0 / 0 correct
Question 1 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client asks about using a creatine supplement to improve their marathon performance and accelerate fat loss. Based on physiological mechanisms, what is the primary proven ergogenic benefit of creatine supplementation?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Creatine doesn't speed up fat oxidation during steady-state cardio. That's a common marketing myth.

B — Not this one. Creatine supports short, intense efforts. Fatigue in long, slow-twitch-dominant running isn't where it helps.

C — Correct. Creatine raises muscle phosphocreatine stores, which supports the ATP-PC system during repeated short, high-intensity efforts like sprints and heavy sets.

D — Not this one. Creatine isn't a fat burner and doesn't directly cause lipolysis. The client's fat-loss hope here is the trap.

E — Not this one. Aerobic capacity depends on oxidative metabolism. Creatine works through the phosphagen system instead.

Question 2 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client loses 2.2 lb of body weight during an intense session and shows visible salt (sodium) residue on their clothing. What is the recommended fluid replacement volume for this client?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Correct. 2.2 lb lost × 16–24 fl oz per pound is about 35–53 fl oz, roughly 1,000–1,500 mL. With visible salt loss, part of that fluid should contain sodium.

B — Not this one. 3,000–3,500 mL is more than double what a 2.2 lb loss calls for.

C — Not this one. 1,500–2,000 mL overshoots the 16–24 oz-per-pound guideline for a 2.2 lb loss.

D — Not this one. 2,500–3,000 mL would fit a loss of roughly 4–5 lb.

E — Not this one. 2,000–2,500 mL is too much for 2.2 lb. Heavy salt loss changes what goes in the fluid, not how much.

Question 3 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client has been self-imposing a daily caloric deficit of more than 30% for the past three months. They report chronic fatigue, stalled weight loss, and decreased training performance. What is the MOST likely physiological cause of these symptoms?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Prolonged strict dieting lowers metabolic rate. It doesn't raise it, which is why weight loss stalls.

B — Correct. A very large, prolonged deficit costs lean mass and disrupts hormones (such as lower thyroid output and higher cortisol), which reduces energy expenditure, stalls progress and saps performance.

C — Not this one. Glycogen supercompensation comes from carbohydrate loading, the opposite of a long, severe deficit.

D — Not this one. Higher mitochondrial density is a positive training adaptation. It doesn't cause fatigue.

E — Not this one. Parasympathetic dominance isn't the standard explanation here. The picture points to an energy shortfall and hormonal disruption.

Question 4 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A 90-kg client is entering a targeted caloric deficit to reduce body fat while aiming to preserve lean muscle mass. Which daily protein intake range is MOST appropriate to support this physiological goal?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. This is about 2.2–3.0 g/kg, more than is needed to preserve lean mass in a deficit.

B — Not this one. This is about 1.2–1.4 g/kg, below the 1.6–2.2 g/kg range recommended for keeping muscle during a deficit.

C — Correct. 1.6–2.2 g of protein per kg is the range commonly recommended to preserve lean mass during a caloric deficit: 90 × 1.6 = 144 g and 90 × 2.2 = 198 g.

D — Not this one. 0.8–1.0 g/kg is roughly the baseline RDA for sedentary adults, too low for someone trying to hold on to muscle in a deficit.

E — Not this one. About 2.5–2.8 g/kg overshoots the evidence-based range with no added benefit for preserving lean mass.

Question 5 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

An elite sprinter completes a 10-second maximal effort using the ATP-PC system. To ensure adequate recovery using a 1:10 work-to-rest ratio, calculate the required absolute rest time.

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Correct. A 1:10 ratio means 10 seconds × 10 = 100 seconds of rest, or 1 minute 40 seconds. ATP-PC efforts need long rest so phosphocreatine can rebuild.

B — Not this one. 30 seconds is a 1:3 ratio, closer to glycolytic intervals and far too short to restore phosphocreatine.

C — Not this one. 60 seconds is a 1:6 ratio, short of the 1:10 the question specifies.

D — Not this one. 3:20 is a 1:20 ratio, double what was asked for.

E — Not this one. 2:30 is a 1:15 ratio. That's longer than needed and doesn't match the stated 1:10.

Question 6 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A personal trainer is designing a four-week metabolic conditioning program to progressively improve a client's lactic tolerance. Which work-to-rest ratio progression best applies the principle of progressive overload for this specific adaptation?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Rest gets longer each block, which lowers the demand. That's the opposite of progressive overload for lactate tolerance.

B — Not this one. It starts at the hardest ratio and adds rest each block, so the progression runs backward.

C — Not this one. Rest increases from 1:1 toward 1:2, so the stimulus decreases over the four weeks.

D — Correct. Shrinking the rest from 1:4 to 1:3 to 1:2 makes the client clear and tolerate lactate with less recovery each block, which is progressive overload for glycolytic conditioning. Less rest for the same work means a harder stimulus.

Question 7 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A 55-year-old client taking prescription beta-blockers for hypertension asks if they should take a high-dose caffeine pre-workout supplement to improve their energy during training. What is the MOST appropriate response?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Halving the dose is still a recommendation about a stimulant for someone on cardiovascular medication, and the trainer isn't qualified to make it.

B — Not this one. Monitoring blood pressure doesn't make the supplement safe. It accepts a potential drug interaction the trainer should never sign off on.

C — Not this one. Beta-blockers lower resting heart rate, so a low reading doesn't show the stimulant is safe.

D — Not this one. Ephedrine is a stronger cardiovascular stimulant, and products containing it are banned in the US. This is the worst choice here.

E — Correct. A high-dose stimulant could interact with blood pressure medication, so the trainer advises against it and refers the client to the prescribing physician.

Question 8 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client logs persistent poor sleep, increased irritability, and a performance plateau after six weeks of high-volume training. Which physiological mechanism most likely explains these concurrent subjective and objective symptoms?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Overreaching usually shows heightened stress and arousal (sleep trouble, irritability), not a drop in sympathetic drive.

B — Not this one. A lower RMR might explain tiredness, but it doesn't account for the mix of disrupted sleep and mood after weeks of high volume.

C — Not this one. Under-eating can contribute to fatigue, but nothing in the scenario points to diet. The clear driver is six weeks of high-volume training.

D — Not this one. Glycogen depletion causes fatigue within a session. It doesn't explain sleep and mood changes that build over weeks.

E — Correct. Six weeks of high volume with poor sleep, irritability and a plateau fits an overtraining pattern marked by chronically elevated cortisol.

Question 9 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A personal training client performs an all-out effort on an air bike for 30 seconds. How does the primary proportional energy contribution shift from the beginning to the end of this bout?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Energy systems don't hold a fixed ratio during an all-out effort. ATP-PC fades within roughly the first 10 seconds.

B — Not this one. Backwards and the wrong system. A maximal effort starts on ATP-PC, and the oxidative system doesn't dominate a 30-second sprint.

C — Not this one. There's no fixed ratio, and glycolysis doesn't dominate from the first second. The contribution shifts as the bout goes on.

D — Not this one. Over 30 seconds of all-out work, the shift is toward glycolysis, not toward oxidative dominance. Aerobic metabolism takes over only in longer efforts.

E — Correct. ATP-PC dominates roughly the first 10 seconds, then glycolysis carries most of the rest of the 30-second bout.

Question 10 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client requests a comprehensive list of creatine and pre-workout supplements to break a plateau. During the assessment, the client reveals they average four hours of sleep per night and skip meals frequently. Which response is most appropriate for the trainer to provide?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Supplements can't make up for skipped meals, and a custom supplement protocol is beyond what a trainer should design.

B — Not this one. Creatine does nothing to offset four hours of sleep a night.

C — Correct. Sleep and regular meals are the base, and supplements only add to a sound routine. They can't replace one.

D — Not this one. A stimulant to cover up sleep deprivation hides the problem and adds risk. It's the wrong direction.

Question 11 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client recently diagnosed with type 2 diabetes asks their personal trainer for a specific 7-day meal plan to help manage their fasting blood glucose levels and reduce medication dependence. Which action is MOST appropriate?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. An intermittent fasting protocol for someone with diabetes on medication is a clinical diet prescription, and it carries a hypoglycemia risk.

B — Not this one. Designing a ketogenic diet to manage a disease is medical nutrition therapy, which is outside the trainer's scope.

C — Not this one. Adjusting insulin timing is medical management. No personal trainer should ever advise it.

D — Not this one. A detailed meal plan aimed at blood glucose control is still a disease-management prescription, however reasonable it looks.

E — Correct. A disease-specific meal plan meant to change glucose control and medication needs belongs to a registered dietitian working with the client's physician. Condition-specific nutrition means referral.

Question 12 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client experiences severe muscle fatigue during an intense 45-second sprinting bout. Which physiological byproduct is the primary driver of localized muscular acidosis in this specific energy pathway?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Correct. Fast glycolysis during a 45-second sprint produces hydrogen ions, and their buildup lowers muscle pH and interferes with contraction.

B — Not this one. Glycogen isn't depleted in 45 seconds, and depletion wouldn't cause acidosis anyway.

C — Not this one. Phosphocreatine depletion happens early, but it doesn't produce acid.

D — Not this one. Blood carbon dioxide is a respiratory issue, not what drives local muscle acidosis in a sprint.

E — Not this one. Lactate is the classic trap. It goes up alongside the acidity but isn't the acid. Hydrogen ions are.

Question 13 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client on an ultra-low-fat diet experiences hormonal disruption and poor endurance during low-to-moderate intensity exercise. Which dietary modification should the trainer recommend?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. BCAAs don't replace dietary fat, and they don't fix the hormonal problems.

B — Not this one. Protein timing doesn't address a shortage of dietary fat.

C — Correct. Very low fat intake can disrupt hormone production and limit fat as fuel for low-to-moderate intensity work, so the fix is adding healthy unsaturated fats.

D — Not this one. Refined sugar gives quick energy but doesn't correct the underlying fat deficiency.

E — Not this one. Adding carbohydrate doesn't fix the problem, which is too little dietary fat.

Question 14 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A 90-kg client performs a 0.5-hour cycling session at 8 METs. Using the simplified formula kcal = METs × body weight (kg) × time (hours), calculate the session's caloric expenditure to help estimate daily maintenance energy needs.

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Correct. 8 METs × 90 kg × 0.5 h = 360 kcal. The trap in MET questions is the time unit: half an hour means multiplying by 0.5.

B — Not this one. 180 kcal halves the result a second time, as if the session were 15 minutes.

C — Not this one. 1440 kcal is four times too high, like a two-hour session.

D — Not this one. 720 kcal forgets the 0.5 hour and calculates a full hour.

E — Not this one. 450 kcal doesn't come from the formula. It's 90 × 5, which mixes up the inputs.

Question 15 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A trainer explains to a client why low-intensity steady-state cardio preferentially uses fat oxidation while high-intensity intervals rely more on carbohydrates. If complete beta-oxidation of one palmitic acid molecule yields approximately 129 ATP, and aerobic glycolysis of one glucose molecule yields approximately 36 ATP, why can the body not sustain high-intensity exercise primarily using fats?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Correct. Fat provides much more total ATP per molecule, but beta-oxidation releases it slowly. High-intensity work needs ATP faster than fat metabolism can supply it, so carbohydrate takes over.

B — Not this one. Lactate comes from carbohydrate breakdown, not fat metabolism.

C — Not this one. The stem says the opposite: palmitic acid yields far more ATP (about 129) than glucose (about 36).

D — Not this one. Fatty acids do enter mitochondria during exercise. That's how they're oxidized.

E — Not this one. Both fat oxidation and aerobic glycolysis use oxygen. Only fast glycolysis runs without it.

Question 16 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A prediabetic client completes 12 weeks of combined aerobic and resistance training. Fasting glucose remains stable, but fasting insulin decreases by 25% and HbA1c improves. Which chronic adaptation BEST explains these metabolic improvements?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Not this one. Adiponectin may rise with fat loss, but it isn't the main explanation here.

B — Correct. Months of training increase GLUT4 transporters and mitochondrial enzymes in muscle, so glucose is cleared with less insulin. That's why fasting insulin and HbA1c improved while fasting glucose stayed the same.

C — Not this one. Suppressing liver glucose output would show up as lower fasting glucose, which stayed the same.

D — Not this one. More beta-cell output would raise insulin, not lower it by 25%.

E — Not this one. Glycogen storage adapts too, but it isn't the core reason insulin sensitivity improved.

Question 17 of 17 · Basic & Applied Sciences and Nutritional Concepts · 15%Not answered

A client engages in intense, 90-minute outdoor workouts in hot conditions and sweats heavily. They currently hydrate exclusively with plain water. To prevent exertional hyponatremia and support performance, which recommendation is MOST appropriate?

Why each option is right or wrong

Pick an answer. Then tap any option to read its explanation, the wrong ones included.

A — Correct. Long, heavy-sweat sessions in the heat lose sodium as well as water. Drinking only plain water can dilute blood sodium (exertional hyponatremia), so fluids for these sessions should include sodium, such as a sports drink or an electrolyte mix.

B — Not this one. Carbonation doesn't speed fluid absorption, and it can cause bloating mid-workout.

C — Not this one. More plain water with no sodium raises the hyponatremia risk this client already faces.

D — Not this one. Sweat losses are mainly sodium and chloride, not calcium.

E — Not this one. Holding off on fluids until the end of 90 minutes in the heat invites dehydration and heat illness.

Answer all questions to see your score

03

Reciprocal vs autogenic inhibition

Both terms sit in K4, and they are easy to swap under time pressure.

  • Reciprocal inhibition: when an agonist contracts, its antagonist relaxes so the joint can move. As the quadriceps extend the knee, the hamstrings ease off.
  • Autogenic inhibition: sustained tension in a muscle makes its own Golgi tendon organs relax that same muscle. Static stretching and self-myofascial release rely on it.

A rule of thumb for questions: if the muscle that relaxes is the one under tension, it is autogenic. If it is the opposite muscle, it is reciprocal.

Trap: kcal, Calorie and calorie

One food “Calorie” (capital C) is one kilocalorie (kcal). A small-c calorie is a thousand times smaller. Label-reading questions rely on this, as does the arithmetic of energy per gram: 4 kcal for protein and carbohydrate, 9 for fat, 7 for alcohol.

04

Domains next to this one by weight

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05

Sciences and nutrition: quick answers

How many Basic & Applied Sciences and Nutritional Concepts questions are on the NASM-CPT exam?

About 15 of the 100 scored questions, since the blueprint weights this domain at 15%. NASM's handbook says the blueprint sets the number of questions per domain; the 20 unscored pretest items come on top.

Do I need to memorize muscle origins and insertions for NASM?

The blueprint asks for the structures and functions of the body's systems, plus applied movement science such as muscle actions, force-couples and planes of motion. Focus on what a muscle does in a movement, and on which muscles are overactive or underactive in common compensations.

How much nutrition is on the NASM CPT exam?

Nutrition shares this domain with anatomy, physiology and biomechanics. The blueprint lists macronutrients, micronutrients, hydration, energy balance, portions, fad diets, supplements and label reading. Where a trainer's nutrition advice has to stop is covered under Professional Development.