Study guide
11.6 Diabetic Foot Care, Skin Integrity & Footwear Assessment
AACVPR CCRP Certified Cardiac Rehab Professional Exam
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1 Chapter 1: Introduction & Cardiac Rehabilitation Foundations
1.1 AACVPR CCRP Credential, Exam Specifications & Core Competencies 1.2 Phases of Cardiac Rehabilitation & Clinical Delivery Models 1.3 Interdisciplinary Team Roles, Clinical Scope of Practice & Safety
2 Chapter 2: Cardiovascular Anatomy, Physiology & Pathology
2.1 Cardiac Anatomy, Coronary Circulation & Hemodynamics 2.2 Atherosclerosis Pathogenesis, Acute Coronary Syndromes (ACS) & Revascularization 2.3 Heart Failure (HFrEF/HFpEF), Cardiomyopathies & Valvular Heart Disease 2.4 Electrical Interventions: Cardioversion, Catheter Ablation & Post-Procedure Rehabilitation
3 Chapter 3: Diagnostic Evaluation, ECG & Clinical Testing
3.1 Baseline Clinical Assessment & AACVPR Risk Stratification 3.2 12-Lead ECG Interpretation: Ischemia, Transmural Infarction & Conduction 3.3 Cardiac Arrhythmias, Conduction Blocks & Device Rhythms (Pacemakers/ICDs) 3.4 Graded Exercise Testing (GXT), Gas Exchange & Termination Criteria
4 Chapter 4: Patient-Centered Assessment: Education, Equity & Social Context
4.1 Learning Readiness: Health Literacy, Learning Styles & Communication Barriers 4.2 Social Determinants of Health, Culture & Spirituality in Cardiac Rehab 4.3 Sex- and Race-Based Differences in Cardiovascular Presentation & Outcomes 4.4 Substance Use Screening: Alcohol, Cannabis, Stimulants & Cardiac Risk
5 Chapter 5: Exercise Prescription & Aerobic Conditioning
5.1 FITT-VP Framework & Aerobic Exercise Intensity Calculation 5.2 Exercise Progression, Environmental Factors & Telemetry Monitoring Guidelines 5.3 High-Intensity Interval Training (HIIT) vs Moderate Continuous Training (MICT) 5.4 Home Exercise Program Design, Prescription & Independent Progression
6 Chapter 6: Exercise Physiology, Monitoring & Session Design
6.1 Health-Related Physical Fitness Components & Functional Capacity Testing 6.2 Acute Cardiovascular Responses to Aerobic Exercise: METs, Rate Pressure Product & VO₂ 6.3 Chronic Training Adaptations in Cardiac Patients 6.4 Structuring the Exercise Session: Warm-Up, Conditioning & Cool-Down 6.5 ECG Telemetry Setup: Skin Preparation, Electrode Placement & Artifact Troubleshooting 6.6 Pulse Oximetry, Exertional Desaturation & Supplemental Oxygen Titration
7 Chapter 7: Resistance, Flexibility & Exercise Safety
7.1 Resistance Training Guidelines, Hemodynamics & Sternal Precautions 7.2 Flexibility, Neuromotor Training & Special CR Populations 7.3 Exercise Contraindications, Adverse Signs/Symptoms & Emergency Protocols
8 Chapter 8: Physical Activity Counseling & Behavior Change
8.1 Physical Activity Guidelines, Sedentary Physiology & NEAT 8.2 Behavioral Change Theories: Transtheoretical Model & Social Cognitive Theory 8.3 Motivational Interviewing Principles & Resolving Ambivalence 8.4 SMART Goal Setting, Activity Tracking & Relapse Prevention
9 Chapter 9: Physical Activity Assessment & Real-World Activity Counseling
9.1 Physical Activity vs Exercise: Assessment Instruments, Logs & Wearables 9.2 Metabolic Requirements of Daily Life: Occupational, Recreational & Sexual Activity 9.3 Environmental & Situational Risk: Heat, Cold, Altitude, Air Quality & High-Risk Activities 9.4 Upper- vs Lower-Body Physiologic Demands & Modality Selection
10 Chapter 10: Hypertension & Blood Pressure Regulation
10.1 2017 ACC/AHA Hypertension Classification & Cardiovascular Risk 10.2 Antihypertensive Pharmacology & Exercise Hemodynamics 10.3 Exertional Blood Pressure Dynamics, Exertional Hypotension & Crisis 10.4 Home Blood Pressure Monitoring, Sodium Restriction & Lifestyle Interventions 10.5 Blood Pressure Measurement Technique, Device Validation & Renal Protection
11 Chapter 11: Diabetes Mellitus & Metabolic Regulation
11.1 Diabetes Pathophysiology, Diagnostic Criteria & Glycemic Targets 11.2 Antidiabetic Pharmacotherapy (Insulin, Sulfonylureas, SGLT2i, GLP-1 RA) 11.3 Exercise-Induced Hypoglycemia Management (Rule of 15) & Hyperglycemia 11.4 Diabetic Complications & Exercise Adaptations (Autonomic & Peripheral Neuropathy) 11.5 Blood Glucose Self-Monitoring, CGM Interpretation & Peri-Exercise Testing 11.6 Diabetic Foot Care, Skin Integrity & Footwear Assessment
12 Chapter 12: Blood Lipid Management & Atherosclerosis Prevention
12.1 Lipid Metabolism, Atherogenic Lipoproteins & Advanced Lipid Testing 12.2 Statin Therapy, Dosing Intensity & Secondary Prevention Targets 12.3 Non-Statin Pharmacotherapies & Statin-Associated Muscle Symptoms (SAMS)
13 Chapter 13: Medical Nutrition Therapy & Dietary Patterns
13.1 Nutritional Assessment & Macronutrient Guidelines in Cardiovascular Disease 13.2 Cardioprotective Dietary Patterns: Mediterranean, DASH & Plant-Based 13.3 Dietary Lipids, Sodium, Soluble Fiber & Plant Stanols/Sterols 13.4 Clinical Scope: CR Professional Counseling Boundaries vs RD/RDN Referral
14 Chapter 14: Body Composition & Weight Management
14.1 Anthropometric Assessment: BMI, Waist Circumference & Obesity Paradox 14.2 Behavioral Weight Management, Energy Balance & Caloric Deficits 14.3 Anti-Obesity Pharmacotherapy (GLP-1/GIP) & Bariatric Surgery Considerations
15 Chapter 15: Tobacco Cessation Interventions
15.1 Cardiovascular Pathophysiology of Tobacco, Nicotine & Secondhand Smoke 15.2 Clinical Cessation Frameworks: The 5 A's & 5 R's Models 15.3 Pharmacotherapy for Nicotine Dependence: NRT, Varenicline & Bupropion 15.4 Behavioral Counseling, Coping Strategies & Relapse Prevention
16 Chapter 16: Psychosocial Health, Screening & Behavioral Support
16.1 Psychosocial Risk Factors & Prognostic Impact in Heart Disease 16.2 Validated Screening Instruments: PHQ-9, GAD-7 & Administration 16.3 Evidence-Based Interventions: Stress Management, CBT Principles & Social Support 16.4 Crisis Protocols, Suicidal Ideation & Mental Health Referral Pathways 16.5 Psychotropic Pharmacology & Cardiac Safety 16.6 Sleep Disturbance, Chronic Pain & Somatic Comorbidity in Psychosocial Management
17 Chapter 17: Regulatory Compliance, Documentation & Program Outcomes
17.1 CMS Coverage Guidelines, Qualifying Diagnoses & Practitioner Supervision 17.2 Individualized Treatment Plan (ITP) Components, 30-Day Updates & Goals 17.3 AACVPR Outcome Domains & Program Certification Performance Measures 17.4 Program Certification, Quality Improvement & Medical Emergency Preparedness
11.6 Diabetic Foot Care, Skin Integrity & Footwear Assessment
Key Takeaways Explain This Topic AI
Loss of protective sensation is detected with a 10-gram Semmes-Weinstein monofilament applied at plantar sites; inability to feel it identifies a foot at risk for unnoticed ulceration.
Patients should inspect their feet daily including between the toes and the soles, using a mirror or a helper when vision or mobility limits direct viewing.
Moisturizer is applied to the tops and bottoms of the feet but never between the toes, where retained moisture promotes maceration and fungal infection.
Patients with diabetes should never walk barefoot even indoors, should check inside shoes before putting them on, and should avoid heating pads, hot water bottles, and chemical corn or callus removers.
An active foot ulcer requires non-weight-bearing exercise modalities, whereas moderate walking is acceptable with loss of protective sensation provided the feet are intact and properly shod.
Last updated: September 2026
11.6 Diabetic Foot Care, Skin Integrity & Footwear Assessment
Note
Blueprint anchor : Domain 6 (Diabetes Management), task 6.12 — Educate patients with diabetes on proper foot care .
Cardiac rehabilitation puts patients with diabetes on treadmills for 36 sessions. In a patient with peripheral neuropathy, an ill-fitting shoe can produce a blister they cannot feel, which becomes an ulcer, which becomes an infection, which becomes an amputation. Foot care is not a side topic bolted onto the diabetes domain — in a program built on walking, it is a direct safety responsibility.
Why the Diabetic Foot Is Vulnerable
Three mechanisms converge:
Peripheral sensory neuropathy removes the pain signal that normally causes a person to shift position, loosen a shoe, or stop walking. Injury proceeds unnoticed.
Autonomic neuropathy reduces sweating, producing dry, cracked skin that breaks down and admits bacteria.
Motor neuropathy and peripheral artery disease produce deformity (claw toes, Charcot changes, altered pressure distribution) and impaired perfusion that prevents healing.
Added to these, hyperglycemia impairs immune function and wound healing , so a minor injury that would resolve in days in another patient can persist and progress.
Screening for Loss of Protective Sensation
Test Method Interpretation
10-g Semmes-Weinstein monofilament Applied perpendicular to plantar sites until it buckles, roughly 1 second, with the patient's eyes closed Inability to feel it at any tested site indicates loss of protective sensation (LOPS)
128-Hz tuning fork Vibration sense at the dorsum of the great toe Reduced or absent vibration sense supports neuropathy
- Ankle reflexes Achilles reflex Diminished or absent with neuropathy
- Pedal pulses Dorsalis pedis and posterior tibial Absent or diminished pulses suggest peripheral artery disease
Ankle-brachial index Ankle SBP ÷ brachial SBP Below 0.90 indicates PAD; falsely high values above 1.40 occur with medial calcification
A comprehensive foot examination at least annually is standard for all patients with diabetes, more frequently when LOPS, deformity, PAD, or prior ulceration is present. Any patient with LOPS is in a higher-risk category regardless of how good their feet look today.
- The Daily Routine to Teach
- Inspection
Inspect both feet every day , including between the toes and the soles .
Use a mirror on the floor , a long-handled mirror, or a family member when vision or flexibility prevents direct viewing — this is the specific accommodation for the patient who cannot see their own soles.
Look for redness, blisters, cuts, cracks, calluses, corns, swelling, warmth, color change, drainage, and ingrown or discolored nails.
Washing and moisturizing
Wash daily in lukewarm water — test the temperature with the elbow, a thermometer, or another person , because neuropathy impairs temperature sensation and patients scald themselves in water that feels comfortable to an insensate foot.
Do not soak the feet; prolonged soaking macerates skin.
Dry thoroughly, especially between the toes.
Apply moisturizer to the tops and bottoms — never between the toes , where retained moisture promotes maceration and fungal infection.
Nail care
Cut nails straight across and file the edges; avoid cutting down the sides, which creates ingrown nails.
Refer to podiatry for nail care when the patient has LOPS, impaired vision, limited reach, thickened nails, or PAD .
Absolute prohibitions
Warning
Teach these as hard rules:
Never walk barefoot , indoors or outdoors, including to the bathroom at night and on beach or pool decks.
Never use chemical corn or callus removers — they are acids and cause chemical burns in insensate skin.
Never perform self-surgery on corns, calluses, or nails with razors or blades.
Never use heating pads, hot water bottles, electric blankets on the feet, or place feet near a heater or fire — burns occur without warning.
Never wear new shoes for a long walk ; break them in gradually, starting with an hour or two, checking the feet afterward.
Footwear and Socks
- Feature Recommendation
- Fit Measured while standing, late in the day when feet are largest; adequate toe box depth and width
Construction Well-cushioned athletic or walking shoe; closed toe and closed heel; no thongs or sandals with toe posts
Pre-use check Inspect and feel inside the shoe for pebbles, folded liners, or protruding seams before every wear
Socks Seamless, non-binding, moisture-wicking; light-colored socks make drainage visible; change if damp
Deformity Custom-molded or extra-depth shoes with accommodative insoles when deformity or prior ulceration is present
Important
Medicare's therapeutic shoe benefit covers one pair of depth-inlay shoes and inserts, or custom-molded shoes and inserts, per calendar year for beneficiaries with diabetes who meet qualifying foot conditions, when certified by the physician managing their diabetes and prescribed and fitted by a qualified supplier. Many patients do not know this exists, and telling them is a concrete, high-value CR intervention.
Exercise Implications
- Foot status Exercise guidance
- Intact feet, no LOPS Standard weight-bearing exercise
LOPS, feet intact, properly shod Moderate walking is acceptable , with proper footwear and daily inspection; avoid high-impact, prolonged running, and step exercise
Foot deformity or prior ulceration Reduced-impact modalities preferred; therapeutic footwear; heightened inspection
Active ulcer Non-weight-bearing modalities only — arm ergometry, seated exercise, aquatic activity is generally avoided with an open wound; coordinate with wound care
Any new wound, blister, or redness Report immediately ; do not wait for the next scheduled visit
Important
Older teaching held that patients with LOPS should avoid weight-bearing exercise entirely. Current ADA guidance supports moderate walking for patients with LOPS whose feet are intact and appropriately shod , because the cardiovascular and glycemic benefits are substantial and the risk is manageable with proper footwear and daily inspection. The absolute restriction applies to an active ulcer .
In a CR gym: inspect the feet of patients with diabetes and neuropathy periodically rather than assuming, ask about new footwear, and treat any reported blister as urgent rather than trivial.
Realistic Clinical Scenario
Scenario : A 67-year-old man with type 2 diabetes for 18 years enters Phase II. He cannot feel the 10-g monofilament at three of ten plantar sites bilaterally. Dorsalis pedis pulses are diminished. He bought new walking shoes for the program and wore them for the full 30-minute treadmill session on day one. At session three, staff notice he is walking with an altered gait; on inspection there is a 2 cm intact blister with surrounding erythema on the plantar surface of his right great toe. He reports no pain and says he had not looked at his feet.
Analysis : He has documented loss of protective sensation with probable concurrent peripheral artery disease, which is the highest-risk combination — no pain signal to warn him and impaired perfusion to heal him. New shoes worn for a full session without gradual break-in is the precipitant. The absence of pain is expected and is precisely why the lesion progressed unnoticed; the surrounding erythema raises concern for early infection. This is a wound in a neuropathic, likely ischemic foot, not a minor blister.
Plan : Stop weight-bearing exercise today and notify the medical director the same day for urgent evaluation and likely podiatry or wound care referral — do not debride, drain, or apply any over-the-counter product. Convert his prescription to non-weight-bearing modalities such as arm ergometry and seated resistance work until the lesion is cleared. Deliver the full foot care curriculum with teach-back: daily inspection including soles using a floor mirror, lukewarm water tested by elbow, thorough drying and moisturizing but never between the toes, never barefoot, checking inside shoes before wearing, and breaking in new footwear over one to two hours at a time. Inform him about the Medicare therapeutic shoe benefit and refer for evaluation, given his LOPS and diminished pulses. Document the monofilament findings, the wound, the education delivered, and the referrals in the ITP.