Pre-PT Hub
6 min read By Pre-PT Hub Team

Exercise Physiology is arguably the most directly relevant prerequisite for DPT programs. Physical therapists prescribe exercise as their primary intervention, and this course teaches you why exercise works at the cellular, organ, and whole-body level. Understanding how the body responds to different types, intensities, and durations of exercise is not background knowledge for a PT. It is the scientific foundation of your entire practice.

Why This Course Matters for PT

Exercise prescription is a core PT skill. The FITT-VP principles (Frequency, Intensity, Time, Type, Volume, Progression) learned in exercise physiology translate directly into clinical practice. Every treatment plan you write will draw on these concepts.

Cardiac rehabilitation. PTs play a central role in cardiac rehab. Research in Frontiers in Cardiovascular Medicine confirms that exercise training remains the core component of cardiac rehabilitation programs. PTs must understand ventilatory thresholds, heart rate prescription, RPE scales, and how to safely progress patients with cardiovascular disease.

Metabolic testing and clinical decision-making. Understanding VO2max, lactate thresholds, metabolic equivalents (METs), and graded exercise testing allows PTs to interpret test results, set safe exercise parameters, and communicate effectively with cardiologists and pulmonologists.

Musculoskeletal rehabilitation. Muscle fiber types, neuromuscular adaptations, and the overload principle directly inform how PTs design strengthening and return-to-sport programs. Progressive overload, specificity, and periodization come straight from exercise physiology.

Endocrine and metabolic conditions. PTs increasingly work with patients who have diabetes, obesity, and metabolic syndrome. Exercise physiology provides the science behind how exercise improves insulin sensitivity, glucose uptake, and lipid profiles.

Pulmonary rehabilitation. PTs working with COPD, asthma, or post-surgical pulmonary conditions rely on knowledge of respiratory physiology during exercise: ventilatory mechanics, gas exchange, and how to modify exercise for patients with limited lung function.

What You Will Cover

A standard exercise physiology course includes:

  • Bioenergetics: ATP as energy currency, the three energy systems (ATP-PC/phosphagen for ~5-6 seconds of max effort, glycolytic/anaerobic for ~2 minutes, oxidative/aerobic for sustained activity), substrate utilization, lactate threshold
  • Cardiovascular responses: cardiac output, stroke volume, heart rate responses, blood pressure regulation, VO2max measurement and significance, acute vs. chronic adaptations
  • Respiratory physiology: pulmonary ventilation during exercise, gas exchange, oxygen transport, ventilatory thresholds (VT1 and VT2)
  • Neuromuscular physiology: skeletal muscle structure, sliding filament theory, motor units, excitation-contraction coupling, muscle fiber types (Type I, Type IIa, Type IIx), neuromuscular adaptations
  • Endocrine responses: hormonal regulation during exercise (catecholamines, cortisol, insulin, growth hormone), sympathetic vs. parasympathetic roles
  • Training principles: specificity, overload, progression, reversibility, individuality, aerobic vs. anaerobic training adaptations, detraining and overtraining
  • Body composition and thermoregulation: body composition analysis methods, temperature regulation, fluid balance, environmental factors
  • Exercise testing and prescription: graded exercise testing (GXT), VO2max protocols, lactate threshold testing, heart rate monitoring, designing exercise programs

Study Strategies That Work

Master the energy systems first. The three energy systems are the foundation of the entire course. Draw diagrams showing which system dominates at different exercise intensities and durations. Understanding ATP-PC, glycolytic, and oxidative pathways before moving to organ systems will make everything else click.

Use layered learning: molecules to whole body. Start with cellular mechanisms (sliding filament theory, glycolysis), then build up to organ-level responses (cardiac output changes), then whole-body adaptations (VO2max improvements with training). This bottom-up approach mirrors how most textbooks are structured.

Create acute vs. chronic comparison charts. For each body system, ask: "What happens at rest vs. during exercise vs. after chronic training?" Build comparison charts for the cardiovascular, respiratory, muscular, and endocrine systems. This three-column framework is one of the most tested concepts in the course.

Draw and label physiological diagrams. Sketch the cardiac cycle, the oxygen-hemoglobin dissociation curve, glycolysis and Krebs cycle pathways, and muscle contraction steps. Active drawing beats passive re-reading for retention of complex processes.

Apply concepts to real scenarios. After studying a concept, apply it: "If a patient needs to return to marathon running, which energy system dominates? What training adaptations are needed? How do I progress safely?" This mirrors how exercise physiology is tested and how it applies in PT practice.

Study the testing methods. Understand how key variables are measured: VO2max testing protocols, lactate threshold assessment, body composition methods, heart rate monitoring. Many exam questions and DPT coursework build on these practical skills.

Make your own flashcard decks. Research shows that creating your own cards forces deeper engagement with the material than using pre-made sets. Focus on key thresholds and values, hormonal responses, muscle fiber type characteristics, and energy system contributions at different intensities. Use Anki for spaced repetition.

Free Resources

Free textbook:

  • The Physiology of Exercise (3rd edition, 2025) by Rosie Lanphere is a free, open textbook covering metabolism, energy expenditure, and all major body systems during exercise

Free courses:

Free references:

Video resources:

Study tools:

Recommended Textbooks

  • Exercise Physiology: Theory and Application to Fitness and Performance by Powers and Howley (McGraw-Hill, 12th edition) is the most widely adopted undergraduate text, explicitly designed for exercise science and PT students
  • Exercise Physiology: Nutrition, Energy, and Human Performance by McArdle, Katch, and Katch (Wolters Kluwer, 9th edition) is a legacy text spanning 40+ years with strong nutrition and energy transfer coverage
  • Physiology of Sport and Exercise by Kenney, Wilmore, and Costill (Human Kinetics) is praised for clear writing and strong visual presentation
  • The Physiology of Exercise by Lanphere (3rd edition) is free and covers all major topics

Apps Worth Using

  • Anki for spaced repetition flashcards covering energy systems, thresholds, and adaptations
  • Visible Body for 3D anatomy and physiology models with muscle action animations
  • Vaia for free exercise physiology flashcards and study sets
  • Khan Academy (app available) for foundational cardiovascular and respiratory physiology

How This Connects to DPT School

Exercise physiology is not a prerequisite you take and leave behind. It is the course you will reference every single day of your DPT program and clinical career. When you calculate target heart rate zones for a cardiac rehab patient, you are using exercise physiology. When you design a progressive strengthening program for a post-ACL reconstruction patient, you are applying the overload principle. When you educate a patient with diabetes about why walking improves their blood sugar, you are explaining substrate utilization and insulin sensitivity. This course does not just prepare you for DPT school. It is the scientific backbone of what physical therapists do.

This is part of our Study Saturday series, where we break down how to succeed in each PT school prerequisite course. For an overview of all prerequisites, see understanding PT school prerequisites.

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