This free NSCA-CPT study guide walks through every topic on the National Strength and Conditioning Association’s Certified Personal Trainer exam, organized by the four content domains of the current (effective July 1, 2025).[2]
And it’s interactive, not a wall of text: every module has built-in checkpoint quizzes, flashcards, and practice questions, so you learn by doing — not just reading. Because the exam is heavily applied, the guide emphasizes the things you must be able to do: assess a client, plan a program, coach technique, and respond safely.
Read it module by module, test yourself at each checkpoint, then round out your free NSCA-CPT resources with our practice test, flashcards. Spend the most time on and — together they are 65% of the scored exam.
NSCA-CPT Exam Snapshot
| Detail | NSCA-CPT exam |
|---|---|
| Questions | 155 total (140 scored + 15 non-scored), incl. 25–35 video/image items |
| Time limit | 3 hours |
| Passing standard | Scaled score of 70 or higher (not 70% raw correct) |
| Pass rate | 77% overall (2025, NSCA Exam Report; ~66% first-time in 2022) |
| Eligibility | 18+, high school diploma/GED, current CPR/AED |
| Format | Multiple choice, computer-based, Pearson VUE, NCCA-accredited |
| Cost / retake | ≈435 non-member; a retake = full re-registration (30-day wait) |
| Recertification | Every 3 years — CEUs (2+ categories) + current CPR/AED |
The exam is weighted toward the two “doing” domains — exercise technique and program planning make up nearly two-thirds of the test — so spend your time accordingly:[2]
Exercise technique, cueing, spotting, and intensity monitoring across every modality — the single heaviest domain (≈50 scored Qs)
Needs analysis, SMART goals, acute variables, progression/periodization, and special-population programming (≈41 scored Qs)
Informed consent, PAR-Q, health history, vital signs, body composition, and fitness testing (≈32 scored Qs)
Emergency action plans, heat illness, CPR/AED, RICE, negligence, and scope of practice — small but scenario-heavy (≈17 scored Qs)
Module 1 · Client Consultation & Assessment
Domain 1 — 23% of the exam (about 32 scored questions). Before you can plan or coach, you gather data. This domain is the front end of every client relationship: consent, screening, vital signs, body composition, and fitness testing — performed in the right order.
1.1 Consent, Screening & Health History
Start with a signed form — it documents that the client voluntarily agreed after being told the purpose, procedures, risks, and benefits.[7] Then screen with the (seven standard items) and a health-history form to flag medical risk and the need for physician clearance.
- 1
Informed consent & screening
Collect a signed informed-consent form, then screen with the PAR-Q (7 standard items) and a health-history form to flag medical risk and the need for physician clearance — gathered FIRST.
- 2
Resting vital signs
Measure resting heart rate and blood pressure. Abnormal values (e.g. resting BP ≥ 180/110) are contraindications to testing until cleared by a physician.
- 3
Body composition
Estimate body composition with skinfolds, girths, BMI (kg/m²), or waist-to-hip ratio to set a realistic baseline and goals.
- 4
Cardiorespiratory testing
Submaximal field/lab tests — Åstrand-Rhyming cycle (50 rpm), YMCA cycle, Rockport walk, 1.5-mile run, or YMCA step — estimate aerobic capacity (VO₂max).
- 5
Muscular fitness & movement
Strength/endurance field tests (e.g. push-up, 1RM or submax-load estimation) plus posture and an overhead-squat-style movement screen reveal imbalances that drive the program.
1.2 Resting Vital Signs & Body Composition
Measure resting heart rate and blood pressure; abnormal values are contraindications to testing until a physician clears the client.[8] Then estimate body composition. Know the common methods and what each one tells you:
| Measure | What it tells you |
|---|---|
| BMI (kg/m²) | Quick weight-for-height screen; does not separate muscle from fat |
| Skinfolds | Estimates body-fat percentage from subcutaneous fat at standard sites |
| Waist-to-hip ratio | Fat distribution; higher ratios flag greater health risk |
| Girth measurements | Track changes in body size over time without estimating fat % |
1.3 Cardiorespiratory & Muscular Fitness Testing
Most clients are tested submaximally to estimate without an all-out effort. NSCA-tested options include the cycle test (50 rpm), the YMCA cycle test, the Rockport walk, the 1.5-mile run, and the YMCA step test.[8] Layer on muscular-fitness field tests (push-up, sit-up, or a /submaximal-load estimation) as appropriate.
1.4 Nutrition Scope & Healthy-Eating Basics
Trainers give general healthy-eating guidance — clinical meal plans and medical nutrition therapy are out of and belong to a registered dietitian.[10] Know the macronutrients and their energy values cold:
| Macronutrient | Calories per gram | Main role |
|---|---|---|
| Carbohydrate | 4 cal/g | Main fuel for higher-intensity exercise |
| Protein | 4 cal/g | Builds and repairs muscle tissue |
| Fat | 9 cal/g | Hormones, vitamin transport, long-duration energy |
| Alcohol (not a nutrient) | 7 cal/g | Provides energy but no nutritional value |
Recognizing the signs of disordered eating and referring the client to a qualified professional is also within the assessment domain — observe and refer, never diagnose.[11]
Checkpoint · Module 1
Question 1 of 10
A personal trainer is explaining to a brand-new client why a signed informed consent form is collected before any testing. Which statement best captures what informed consent legally and ethically establishes?
Module 2 · Program Planning
Domain 2 — 29% of the exam (about 41 scored questions). The second-largest domain. Once you have the assessment data, you turn it into a plan: set goals, choose the acute variables, apply the training principles, and adjust for special populations.
2.1 Needs Analysis, Goals & SMART Criteria
Program design begins with a — assessment results, training history, goals, time, and equipment all shape the plan.[7]Translate the client’s goal into a goal, using the NSCA wording:
| Letter | NSCA criterion | Means |
|---|---|---|
| S | Specific | Clearly defined, not vague |
| M | Measurable | Quantifiable progress you can track |
| A | Action-Oriented | Stated as actions the client will take (NOT 'Attainable') |
| R | Realistic | Achievable given the client's situation |
| T | Time-bound | Has a deadline or timeframe |
2.2 Acute Variables & Goal-Based Loading
are the dials of program design — exercise selection and order, intensity, reps, sets, tempo, and rest.[7] Each training goal has its own loading scheme:
| Goal | Reps | Sets | Intensity | Rest |
|---|---|---|---|---|
| Muscular endurance | ≥12 | 2–3 | ≤67% 1RM | ≤30 s |
| Hypertrophy | 6–12 | 3–6 | 67–85% 1RM | 30 s–1.5 min |
| Maximal strength | ≤6 | 2–6 | ≥85% 1RM | 2–5 min |
| Power (single-effort) | 1–2 | 3–5 | 80–90% 1RM | 2–5 min |
| Power (multiple-effort) | 3–5 | 3–5 | 75–85% 1RM | 2–5 min |
2.3 Training Principles, Progression & Periodization
Two principles underpin every plan: the (the body adapts specifically to the demand) and (the demand must gradually rise to keep adaptation going).[7] Vary the program over time with , and respect recovery — soreness peaks 24–72 hours later as .
2.4 Special Populations
A large share of program-planning questions involves special populations. The general rule: screen carefully, often seek physician clearance, start conservatively, and know the key cautions:
| Population | Key programming consideration |
|---|---|
| Older adults | Emphasize balance, function, and gradual progression; manage chronic conditions |
| Youth | Focus on technique and fun; resistance training is safe with supervision |
| Prenatal / postpartum | Avoid supine work later in pregnancy; modify intensity; physician clearance |
| Hypertension | Avoid Valsalva and heavy isometrics; monitor BP; steady breathing |
| Diabetes | Watch for hypoglycemia; have carbohydrate available; check feet/footwear |
| Osteoporosis | Weight-bearing and resistance work; avoid loaded spinal flexion |
Checkpoint · Module 2
Question 1 of 10
A trainer helps a client rewrite the goal 'I want to get in shape' into a SMART goal. Which restated version best satisfies all five SMART criteria?
Module 3 · Program Execution (Techniques of Exercise)
Domain 3 — 36% of the exam (about 50 scored questions). The single heaviest domain, and the one the video and image items target. NSCA wants to know you can demonstrate, cue, spot, and correct exercises — and monitor intensity — across every modality.
3.1 Functional Anatomy & the Energy Systems
Technique rests on the science. The body makes ATP through three energy systems that all run at once — the duration and intensity of the activity decide which one dominates:
Phosphagen (ATP-PC)
- Duration: ~0–10 seconds
- Fuel: stored ATP + creatine phosphate
- Use: maximal, explosive effort (1RM, sprint, jump)
- Oxygen: none needed (anaerobic)
Glycolytic (Anaerobic)
- Duration: ~10 s–2 minutes
- Fuel: glucose / muscle glycogen
- Use: high-intensity work (a hard set, a 400 m run)
- Byproduct: lactate / H⁺ (the 'burn')
Oxidative (Aerobic)
- Duration: 2+ minutes (sustained)
- Fuel: carbohydrate + fat (protein last)
- Use: low-to-moderate, long-duration work (steady cardio)
- Oxygen: required (aerobic)
3.2 Muscle Actions, Planes & Exercise Order
Every repetition has three muscle actions — master the vocabulary, because the exam uses it constantly and pairs it with agonist/antagonist relationships:
| Action | What the muscle does | Example |
|---|---|---|
| Concentric | Shortens while producing force (the lift) | Standing up out of a squat |
| Eccentric | Lengthens under load (the controlled lower) | Lowering into a squat |
| Isometric | Produces force with no length change (a hold) | Holding a plank |
In a leg curl, the hamstrings are the (prime mover) and the quadriceps the antagonist. For sequencing, follow NSCA : large-muscle, multi-joint and power/complex exercises come before small-muscle, single-joint ones.[7]
3.3 Resistance, Plyometric & Flexibility Technique
Know the technique cues for the major lifts (squat, deadlift, press, row), machine vs. free-weight considerations, plyometric and calisthenic progressions, and the flexibility types:
| Type | How it's done | When |
|---|---|---|
| Static | Hold a stretch at end range (~30 s) | Cool-down / improving ROM |
| Dynamic | Controlled movement through full ROM | Warm-up before training |
| Ballistic | Bouncing through end range | Advanced/sport-specific, higher risk |
| PNF | Contract-relax with a partner | Greatest ROM gains, supervised |
3.4 Cueing, Spotting & Intensity Monitoring
Instruction is scored heavily. Give clear, concise cues; demonstrate the movement; watch from the right angle; and spot safely — especially overhead and over-the-face lifts. Monitor intensity with the and heart rate during execution.
3.5 Calculating Target Heart Rate (Karvonen)
The (heart-rate-reserve) calculation is a signature NSCA-CPT math item — expect to compute it, not just recognize it:
HRR = HRmax − HRrest
Heart-rate reserve = the “room” between rest and max.
THR = (intensity % × HRR) + HRrest
Take the percentage of the reserve, then add resting HR back.
Worked example (50% intensity)
- HRR = 185 − 65 = 120
- 50% × 120 = 60
- 60 + 65 = 125 bpm target
Checkpoint · Module 3
Question 1 of 10
A 35-year-old client has a resting heart rate of 65 beats per minute and an estimated maximum heart rate of 185 beats per minute. The trainer wants to prescribe the lower end of a moderate zone at 50 percent using the Karvonen method. What target heart rate results?
Module 4 · Safety, Emergency Procedures & Legal Issues
Domain 4 — 12% of the exam (about 17 scored questions). The smallest domain, but its scenario questions punch above their weight. Know how to keep the floor safe, respond to an emergency, and stay inside your legal and ethical boundaries.
4.1 Facility Safety & Emergency Action Plans
Prevention comes first: maintain equipment, keep clear walkways, supervise appropriately, and have a written — who calls 911, who retrieves the AED, and where emergency equipment is.[7] A frayed cable or a wet floor is a hazard to remove before training, not work around.
4.2 Heat Illness, First Aid & CPR/AED
The single most important triage call is heat exhaustion vs. — the discriminator is mental status:
Heat exhaustion
Alert and oriented
- Heavy sweating, pale, clammy skin
- Headache, nausea, dizziness, weakness
- Core temp usually < 104 °F (40 °C)
- Action: stop activity, move to cool area, hydrate, cool, rest
Heat stroke — MEDICAL EMERGENCY
ALTERED mental status (the key sign)
- Confusion, disorientation, loss of consciousness
- Very high core temp (≥ 104 °F / 40 °C)
- Skin may be hot/dry OR sweating (exertional)
- Action: call 911, RAPID whole-body cooling immediately
For an unresponsive, non-breathing client, follow the emergency chain — and remember the exam still tests (Rest, Ice, Compression, Elevation) for acute soft-tissue injuries:[9]
- 1
Check scene & responsiveness
Ensure the scene is safe, then tap and shout. If the client is unresponsive and not breathing normally, an emergency is underway.
- 2
Activate EMS & get the AED
Call 911 (or direct someone to) and send for the AED — this is part of the facility's written Emergency Action Plan (EAP).
- 3
Begin CPR
Start chest compressions: lower half of the sternum, 100–120 compressions/min, allow full chest recoil between compressions.
- 4
Use the AED as soon as it arrives
Power on, attach pads, let it analyze. 'Clear' everyone before any shock; resume compressions immediately after the shock.
- 5
Document & follow up
After EMS takes over, document the incident per facility policy. Records and a current EAP are legal-safety essentials.
4.3 Legal Duties, Negligence & Scope of Practice
Protect yourself and your clients: use informed consent and waivers, carry liability insurance, document sessions, and keep records confidential. Know the precise legal terms — the exam wants you to name them:
| Term | What it means |
|---|---|
| Negligence | Breach of the standard of care that causes harm to a client |
| Standard of care | What a reasonably prudent, similarly trained professional would do |
| Informed consent | The client agreed after being told purpose, procedures, risks, benefits |
| Confidentiality | Protecting client records and private health information |
| Scope of practice | The boundary of what a trainer may do vs. must refer out |
Checkpoint · Module 4
Question 1 of 10
What is the primary purpose of a facility's emergency action plan?
How to Use This Study Guide
A study guide is a map, not the whole territory — use it alongside the NSCA’s Essentials of Personal Training and our practice tools, not on its own:
- 1
Read a module here
Work through one domain at a time so related concepts reinforce each other.
- 2
Take the checkpoint
The questions at the end of each module expose what didn't stick.
- 3
Drill the gaps
Send your weak domain straight into the free practice test and flashcards.
- 4
Bookmark & space it out
Come back over several days. Short, spaced sessions beat one long cram.
NSCA-CPT Concept Questions
Common NSCA-CPT concepts the exam tests. Tap any card for a short, exam-ready answer backed by an official source — then test yourself on them as flashcards.
NSCA-CPT Glossary
Quick definitions for the terms you’ll see most on the NSCA-CPT exam:
- 1RM (one-rep max)
- The maximum weight a person can lift for a single repetition. Intensity in resistance training is often expressed as a percentage of 1RM, and 1RM can be estimated from submaximal loads.
- Acute variables
- The adjustable details of a workout — exercise selection and order, intensity (load), reps, sets, tempo, rest, frequency, and volume — set to match the client's goal.
- Agonist / antagonist
- The agonist (prime mover) is the muscle chiefly responsible for a movement; the antagonist opposes it. In a leg curl the hamstrings are the agonist and the quadriceps the antagonist.
- Åstrand-Rhyming test
- A single-stage submaximal cycle-ergometer test (50 rpm cadence) that uses steady-state heart rate at a known workload to estimate VO₂max.
- BMI
- Body mass index — body weight in kilograms divided by height in meters squared (kg/m²). A quick body-composition screen, though it does not distinguish muscle from fat.
- Client Consultation & Assessment
- Domain 1 (23%). Informed consent, PAR-Q and health-history screening, resting vital signs, body composition, and fitness testing — the data-gathering that drives the program.
- Concentric action
- A muscle action in which the muscle shortens while producing force — the 'lifting' phase of a rep.
- Detailed Content Outline (DCO)
- The NSCA's official blueprint of what the exam tests, broken into the four domains and their weights. The current NSCA-CPT DCO is effective July 1, 2025.
- DOMS
- Delayed-onset muscle soreness — muscle pain peaking 24–72 hours after unaccustomed or eccentric-heavy exercise.
- Eccentric action
- A muscle action in which the muscle lengthens under load — the controlled 'lowering' phase, and the main driver of delayed-onset muscle soreness.
- Emergency Action Plan (EAP)
- A facility's written plan for medical emergencies — who calls 911, who retrieves the AED, and the location of emergency equipment.
- Exercise order
- The sequence of exercises in a session. NSCA guidance places large-muscle, multi-joint and more complex/power exercises before small-muscle, single-joint exercises.
- Heart-rate reserve (HRR)
- The difference between maximum heart rate and resting heart rate (HRmax − HRrest). The Karvonen method takes a percentage of HRR and adds resting HR back.
- Heat stroke
- A medical emergency defined by altered mental status plus a very high core temperature. Requires calling 911 and rapid whole-body cooling; distinct from heat exhaustion, in which the client stays alert.
- Informed consent
- A signed document confirming the client voluntarily agreed to participate after being told the purpose, procedures, risks, and benefits. It is not a performance guarantee or a payment contract.
- Isometric action
- A muscle action that produces force with no change in muscle length — a held position such as a plank or a mid-range pause.
- Karvonen method
- The heart-rate-reserve method for target heart rate: THR = (intensity % × HRR) + resting HR, where HRR = max HR − resting HR. A signature NSCA-CPT calculation.
- Needs analysis
- The systematic evaluation of a client's status and goals that begins program design — assessment data, training history, goals, and any constraints feed exercise selection and loading.
- Negligence
- A breach of the standard of care — failing to act as a reasonably prudent, similarly trained professional would — that causes harm to a client.
- NSCA-CPT
- The NSCA-Certified Personal Trainer credential — an NCCA-accredited certification from the National Strength and Conditioning Association for trainers who work one-on-one with apparently healthy and special-population clients. Distinct from the NSCA's CSCS, which is for athlete-focused strength coaches.
- PAR-Q
- The Physical Activity Readiness Questionnaire — a brief 7-item self-screening tool completed before exercise testing; a 'yes' answer flags the need for physician clearance.
- Periodization
- Planned variation of training variables over time (e.g. across mesocycles) to drive continued adaptation and manage fatigue.
- Program Execution
- Domain 3 (36%) — the DCO titles it 'Techniques of Exercise.' The largest domain: exercise technique, cueing, spotting, exercise order, and monitoring intensity across every modality.
- Program Planning
- Domain 2 (29%). Needs analysis, SMART goals, acute variables, training principles, progression and periodization, and special-population programming.
- Progressive overload
- Gradually increasing the demands placed on the body (load, reps, volume, or complexity) over time so adaptation continues.
- Recertification
- Maintaining the NSCA-CPT on a three-year cycle by earning continuing-education units (CEUs) across at least two categories and keeping a current CPR/AED certification, or by retaking the exam.
- RICE
- The acute-injury protocol the NSCA-CPT tests: Rest, Ice, Compression, Elevation. Elevate the limb above heart level to limit swelling.
- RPE / Borg scale
- Rating of Perceived Exertion — a subjective intensity scale (e.g. the 6–20 Borg scale) used to monitor and prescribe effort during exercise.
- Safety, Emergency Procedures & Legal Issues
- Domain 4 (12%). Facility safety, emergency action plans, heat illness, first aid, CPR/AED, negligence, scope of practice, and confidentiality.
- SAID principle
- Specific Adaptations to Imposed Demands — the body adapts specifically to the type of stress placed on it. The basis of training specificity.
- Scope of practice
- The boundaries of what a certified personal trainer may do — screening, assessment, program design, technique coaching, general nutrition guidance — versus what must be referred out (diagnosis, treatment, clinical meal plans).
- SMART goals
- The NSCA goal-setting framework: Specific, Measurable, Action-Oriented, Realistic, and Time-bound. Note the NSCA wording uses 'Action-Oriented' (not Attainable) and 'Realistic.'
- Valsalva maneuver
- Forced exhalation against a closed airway during heavy lifting; it briefly spikes blood pressure, so it is used cautiously and is contraindicated for at-risk clients.
- VO₂max
- Maximal oxygen uptake — the gold-standard measure of aerobic capacity. Submaximal field and lab tests estimate it without an all-out maximal effort.
Free NSCA-CPT Study Materials & Resources
Everything you need to pass the NSCA-CPT is free here — no paywall, no sign-up. This guide is the foundation; pair it with the rest of our free NSCA-CPT study materials for active recall, timed practice, and last-minute review:
- NSCA-CPT Practice Test — full-length, timed, NSCA-style questions with explanations.
- NSCA-CPT Flashcards — active-recall decks for the high-yield facts.
- NSCA-CPT Cheat Sheet — the most-tested facts on one page for last-minute review.
NSCA-CPT Study Guide FAQ
The NSCA-CPT has 155 multiple-choice questions — 140 scored and 15 non-scored pretest items — including 25 to 35 video and/or image items. You have 3 hours, and passing requires a scaled score of 70 or higher, not 70% raw correct.
The NSCA reported a 77% overall pass rate for 2025 (5,607 candidates); the 2022 first-time pass rate was about 66%. The exam is application-heavy — the largest domain, Program Execution, tests real exercise technique through video and image items — so practice applying concepts, not just recalling them.
Program Execution / Techniques of Exercise (36%), Program Planning (29%), Client Consultation & Assessment (23%), and Safety, Emergency Procedures & Legal Issues (12%), per the NSCA Detailed Content Outline effective July 1, 2025.
You must be at least 18 years old and hold a high school diploma or equivalent. You also need a current CPR/AED certification; you may test without it on file, but valid CPR/AED documentation must be received within one year of the exam or your results are invalidated.
Work through it one domain at a time alongside the NSCA's Essentials of Personal Training. After each module, take the checkpoint quiz to find gaps, then drill that domain with our free practice test and flashcards. Spend the most time on Program Execution and Program Planning — together they are 65% of the exam.
The NSCA-CPT runs on a three-year recertification cycle. You recertify by earning the required continuing-education units (CEUs) — reported across at least two categories — and maintaining a current CPR/AED certification, or by retaking and passing the exam. A full cycle is 6.0 CEUs; the total is prorated if you certified partway through the cycle.
No. The NSCA-CPT is reported as a scaled score, and you need a 70 or higher to pass — that is not the same as answering 70% of items correctly. Only the 140 scored questions count; the 15 non-scored pretest items do not affect your result.
Both are NSCA credentials, but they are different products. The NSCA-CPT is the entry-level personal-trainer certification for working with apparently healthy and special-population clients, with no degree required. The CSCS (Certified Strength & Conditioning Specialist) is the advanced credential for coaching athletes and requires a bachelor's degree. Study NSCA-CPT materials, not CSCS ones.
Yes — the full guide, the checkpoints, the glossary, the practice test, and the flashcards are 100% free with no account required.
References
- 1.National Strength and Conditioning Association. “NSCA-CPT | NSCA-Certified Personal Trainer.” NSCA.com, 2026. ↑
- 2.National Strength and Conditioning Association. “NSCA-Certified Personal Trainer (NSCA-CPT) Exam Description (Detailed Content Outline, eff. July 1, 2025).” NSCA.com. ↑
- 3.National Strength and Conditioning Association. “NSCA-CPT Exam Prerequisites.” NSCA.com. ↑
- 4.National Strength and Conditioning Association. “How to Register for an NSCA Exam.” NSCA.com. ↑
- 5.National Strength and Conditioning Association. “NSCA Exam Report (2025 pass-rate data).” NSCA.com. ↑
- 6.National Strength and Conditioning Association. “NSCA Recertification Requirements.” NSCA.com. ↑
- 7.National Strength and Conditioning Association. “NSCA's Essentials of Personal Training (3rd ed.).” Human Kinetics / NSCA.com. ↑
- 8.American College of Sports Medicine. “ACSM's Guidelines for Exercise Testing and Prescription.” ACSM.org. ↑
- 9.American Heart Association. “Highlights of the Guidelines for CPR and ECC (Adult BLS).” cpr.heart.org. ↑
- 10.National Institutes of Health, Office of Dietary Supplements. “Nutrient Recommendations and Databases.” ods.od.nih.gov. ↑
- 11.U.S. Department of Health and Human Services. “Physical Activity Guidelines for Americans, 2nd ed..” health.gov. ↑
Sources for the concept answers
Every answer in the NSCA-CPT concept questions above is drawn from an official or authoritative source:

Career Employer
Career Employer is the ultimate resource to help you get started working the job of your dreams. We cover topics from general career information, career searching, exam preparation with free study materials, career interviewing, and becoming successful in your career of choice.
All PostsCareer Employer’s Editorial Process
Here at Career Employer, we focus a lot on providing factually accurate information that is always up to date. We strive to provide correct information using strict editorial processes, article editing, and fact-checking for all of the information found on our website. We only utilize trustworthy and relevant resources. To find out more, make sure to read our full editorial process page here.
