3.3 Cardiovascular and Chronic-Disease Risk Factors

3.3 Cardiovascular and Chronic-Disease Risk Factors

The current ACSM algorithm no longer uses risk-factor counts to decide medical clearance. ACE Domain I Task 1 knowledge 7 still expects you to recognize risk factors for cardiovascular and other chronic diseases, because those factors shape education, intensity progression, and when a later chapter’s special-population programming applies. Think of two drawers: clearance lives in the algorithm and in symptoms; risk lives in this list and informs how you coach.

The cutoffs below are widely taught ACSM-style atherosclerotic CVD risk-factor criteria from ACSM's Guidelines for Exercise Testing and Prescription (the 11th-edition table is the version most current CPT curricula still drill). They are industry guidelines, not ACE-invented numbers. If a future ACSM edition revises a threshold, follow the current ACSM table — do not memorize a phantom “ACE score.”

Positive Risk Factors You Must Recognize

Age. Men ≥45 years; women ≥55 years. Age marks accumulated exposure. It is not, by itself, a reason to withhold moderate activity from an asymptomatic person, and it is not a stand-alone clearance trigger.

Family history. Myocardial infarction, coronary revascularization, or sudden death before 55 years in the father or another male first-degree relative, or before 65 years in the mother or another female first-degree relative. First-degree means parent or sibling, not a grandparent, aunt, uncle, or cousin. A father who had a stent at 70 does not count. A mother with a myocardial infarction at 62 does.

Cigarette smoking. Current cigarette smoker, quit within the previous 6 months, or regular exposure to environmental tobacco smoke. Six months is the industry cutoff students forget: last month’s quit still counts as a positive factor. Document vaping, cigars, and other nicotine products for coaching and referral to cessation resources even though the classic ACSM criterion is written around cigarettes and environmental smoke.

Physical inactivity / sedentary lifestyle. ACSM’s updated table defines inactivity as not meeting about 500–1,000 MET-minutes of moderate-to-vigorous activity per week, or roughly 75–150 minutes per week of moderate-to-vigorous intensity activity. Older materials used “not doing 30 minutes of moderate activity on at least 3 days per week for 3 months.” That older phrase is still the definition of regular exercise in the preparticipation algorithm, so do not mix the two uses on the exam. Algorithm “regular” decides clearance. Risk-factor “inactive” decides whether sedentary lifestyle is one of the counted positives.

Obesity. BMI ≥30 kg/m², or waist circumference >102 cm (40 in) in men or >88 cm (35 in) in women. Either BMI or waist can establish the factor. Waist is often the more useful coaching number because it tracks abdominal adiposity. A client with BMI 28 and a 110 cm waist still has the obesity factor.

Hypertension. Systolic ≥130 mm Hg and/or diastolic ≥80 mm Hg, based on an average of at least two readings on at least two occasions, or currently taking antihypertensive medication. Older ACSM editions used 140/90; current ACSM teaching aligned with the 2017 ACC/AHA blood-pressure categories. A single lobby reading of 132/78 is a reason to remeasure, not an instant medical diagnosis — but a client already prescribed a blood-pressure drug does count. Remember the other drawer: treated, asymptomatic hypertension is a risk factor, not known CMR disease, so it does not by itself force clearance for moderate walking.

Dyslipidemia. LDL-C ≥130 mg/dL, or HDL-C <40 mg/dL in men or <50 mg/dL in women, or non-HDL-C ≥160 mg/dL, or on lipid-lowering medication. If only total cholesterol is available, ≥200 mg/dL counts. You do not order labs. You interpret values the client or clinician provides and you avoid inventing a lipid diagnosis from a single remembered number.

Diabetes / prediabetes (blood glucose). Fasting plasma glucose ≥100 mg/dL, or 2-hour oral glucose tolerance test ≥140 mg/dL, or HbA1c ≥5.7%. Known type 1 or type 2 diabetes is also known metabolic disease on the clearance algorithm — a double role students mix up. Prediabetes is a risk factor. Diagnosed diabetes is both a risk factor and a CMR disease for clearance decisions.

If a risk-factor criterion is unknown, ACSM convention is to count it as a risk factor. Do not assume a missing lipid panel is normal.

The Negative Risk Factor

HDL-C ≥60 mg/dL is the one negative risk factor. Subtract one positive factor from the total. A 56-year-old woman (age +1) who walks daily, does not smoke, and has HDL-C of 64 mg/dL has a net of zero from those items. High HDL does not erase known disease, does not cancel a symptom, and does not replace medical clearance when the algorithm requires it.

How to Use the Count Without Misusing It

A client can have four positive factors and still need no medical clearance if they are asymptomatic, have no known CMR disease, and the algorithm says proceed. Conversely, a client with zero counted factors who reports exertional chest pressure needs an immediate hold. Never let a pretty risk-factor score override a symptom.

When you explain the list to a client, stay in scope. You may say that several factors commonly cluster and that movement, sleep, tobacco cessation, and clinician-guided treatment all matter. You may not announce “you have metabolic syndrome,” change a statin, or promise that eight weeks of training will replace a prescribed drug.

Chronic-Disease Considerations at Intake

Full special-population programming belongs in later chapters. At intake you only need to know what to ask and when to stop. Domain I Task 1 knowledge 6 already flags population-specific and condition-specific considerations (older adult, prenatal/postpartum, youth; low-back issues, diabetes, cancer) and their contraindications. This section stays at the intake gate.

What the trainer needs to know

• The diagnosis in the client’s or clinician’s words, year of onset, and whether it is considered stable.
• Medications and how they change heart rate, blood pressure, or glucose (detail is the next chapter).
• Recent hospitalizations, procedures, or changes in symptoms.
• Orthopedic limits, neuropathy, retinopathy, wounds, or balance problems that change exercise selection.
• Who is on the care team and whether a current clearance already exists.
• Resting measures you are qualified to take (heart rate, blood pressure) and any client-provided labs, used as context rather than as a new diagnosis.

What requires referral rather than a clever program

• New or worsening CMR signs or symptoms.
• Resting blood pressure in a dangerous range, chest pain, unexplained dyspnea, or syncope.
• Uncontrolled diabetes: frequent hypoglycemia, very high readings the client cannot explain, new foot ulcers, or sudden vision change.
• Active cancer treatment decisions that have not been discussed with the oncology team.
• Pregnancy with red-flag symptoms (vaginal bleeding, persistent dizziness, chest pain) — hold and send to the obstetric clinician.
• Requests for a prescribed diet, supplement stacks marketed as treatment, or eating-disorder behaviors — registered dietitian and, when indicated, a physician or mental-health professional.
• Mental-health crises, suicidal ideation, or substance use that makes unsupervised exercise unsafe.

Controlled hypertension, stable type 2 diabetes with recent clinician blessing, osteoarthritis, and treated dyslipidemia are common in commercial settings. You gather the facts, run the algorithm, keep intensity conservative until you see the response, and stay inside scope. You do not announce a diagnosis, change a drug, or design a clinical rehabilitation plan.

Putting Intake Together

A complete Domain I Task 1 file for a new client includes a signed PAR-Q+ (and ePARmed-X+ or physician note if indicated), a health-history form, a risk-factor snapshot used for education, a clearance or referral note if the algorithm required one, and a written plan for when you will re-screen. That package — not a visual once-over — is how an ACE Certified Personal Trainer determines readiness and risk.

Use the drawers in the right order on exam items. First: signs, symptoms, known CMR disease, activity status, desired intensity. Second: risk-factor list for coaching and for recognizing chronic-disease load. Third: hold, refer, and document when either drawer says you are no longer in a training conversation.