Cardiovascular and Pulmonary Conditions

Introduction: Cardiovascular and Pulmonary Conditions

Cardiovascular and pulmonary health are central to overall physical well-being and quality of life. This chapter explores the intersection of exercise programming with common cardiovascular and pulmonary conditions, including hypertension, chronic obstructive pulmonary disease (COPD), pulmonary hypertension, and asthma. By addressing the physiological challenges associated with these conditions, the chapter provides a framework for safe, effective, and individualized exercise interventions.

The first section focuses on hypertension, often called the "silent killer," due to its lack of symptoms yet profound health risks. Detailed guidelines emphasize the importance of monitoring blood pressure, tailoring exercise intensity, and addressing the unique needs of this population.

The second section addresses pulmonary conditions, highlighting the interplay between respiratory limitations and physical deconditioning. Strategies for improving cardiovascular fitness, reducing dyspnea, and building tolerance for physical activity are presented, alongside practical considerations for enhancing adherence and safety.

Together, these sections illustrate the vital role of exercise in mitigating the risks and symptoms of cardiovascular and pulmonary conditions, empowering individuals to improve their health through well-structured, evidence-based programs.

Section 1: Hypertension (High Blood Pressure)

Nearly half of adults in the U.S. have high blood pressure and ~50% of those cases go undetected. Additionally, the prevalence of hypertension increases as we age, with more than 50% of people over age 50 and more than 70% of people over age 65 having this disease. Hypertension is commonly known as “the silent killer” because often there are no symptoms associated. Since people are not necessarily aware that their blood pressure is elevated, it is prudent for the fitness professional to take their client’s blood pressure during the initial consultation and during the Familiarization Phase. The easiest way to do this is with a calibrated digital blood pressure monitor.

If it is established that the person regularly takes blood pressure medications as prescribed, and resting blood pressure is within the safe range prior to each session (i.e., medically controlled), the fitness professional and client may make the mutual decision to reduce the frequency of blood pressure monitoring prior to the start of exercise sessions. It remains recommended that the fitness professional occasionally monitors blood pressure prior to exercise sessions as a general precaution.

If the person’s resting blood pressure is ≥200/110 they should not exercise – this is an absolute contraindication. If a person’s resting blood pressure is ≥160/100 they should seek medical clearance before engaging in exercise (Riebe, 2018). If their resting blood pressure is ≥140/90 it would be well-advised to regularly measure blood pressure prior to training sessions to ensure it falls within the safe exercising range (Table 13.1).

Initial Exercise Assessments

Flexibility and trigger point assessment. The fitness professional or exerciser should incorporate the flexibility and trigger point assessments as described in Chapter 7 along with the additional considerations described in Chapter 11.

Cardiovascular assessment. The fitness professional or exerciser can follow the guidelines in Chapter 5 along with the additional considerations in Chapter 11.

Strength assessment. The fitness professional or exerciser should incorporate the strength assessment as part of the Familiarization Phase, as described in Chapter 6.

Program Design Considerations

Cardiovascular program design. Individuals with hypertension should be instructed to engage in aerobic exercise four to six days per week, 20 to 60 minutes per session, at an RPE of 4 to 6 (on a 1 to 10 scale – and so on throughout the remainder of this text). The goal should be to obtain 150 to 300 minutes of moderate- to vigorous-intensity aerobic exercise each week (Garber, 2011).

High-intensity interval training can be implemented within training sessions once the person can maintain 15 to 20 minutes or greater of continuous aerobic exercise at an RPE of 5 to 6 (Ribeiro, 2017). If high-intensity exercise is implemented within the program:

Overall volume and duration should be low (i.e., cycle through the recovery:work period no more than three times and progress from there).

The work portion should be relatively short (e.g., 30 to 60 seconds).

The recovery portion should begin at a 3:1 to 5:1 ratio (e.g., 120 seconds of recovery for every 30 seconds of work).

The intensity should primarily be guided via the use of the RPE-Talk Test method.

Consider beginning with a modified high-intensity interval program (i.e., interval walking program) for more deconditioned people. This ensures that the work portion remains at the moderate to high end of the aerobic training as opposed to the anaerobic training zone.

Although high-intensity interval training has significant cardiovascular and metabolic health benefits, lower intensity aerobic exercise may be more beneficial on reducing resting blood pressure (Bryant, 2015). For this reason, people with hypertension should preferentially engage in higher frequency, longer duration, low-intensity continuous aerobic exercise over high-intensity interval training. See Chapter 5 for more information on cardiovascular assessment and program design.

Including a modified high-intensity interval training session is at the fitness professional and exerciser’s mutual discretion and is based on fitness level, absence of symptoms, well-controlled resting blood pressure, and positive response to exercise. Rest portion should be at an RPE of 2 to 3 and work portion at an RPE of 6 to 7.

For example, recovery to work ratio may begin at 5:1 or 6:1, cycling through each ratio 3 to 5 times (e.g., 2.5 minutes at an RPE of 2 to 3 followed by 30 seconds at an RPE of 6 to 7). See RPE-Talk Test method in Chapter 5 for more detail.

It is the fitness professional and exerciser’s responsibility to determine frequency, duration, intensity, and progression on a case by case and session by session basis.

Strength program design. The fitness professional can follow the resistance training guidelines covered in Chapters 4 and 6 with the following additional considerations:

Always ensure “readiness to train” questions are asked prior to every session. Based on the answers to each question, the volume and intensity of the session should be adjusted accordingly.

If the exerciser begins to develop any of the following symptoms: light-headedness, dizziness, nausea, pale or clammy skin, excessive sweating, headache, chest pain, chest tightness, heart palpitations, unusual fatigue, blurred vision, or feels anything “other than the norm,” terminate the session and seek medical advice.

Avoid taking working sets to muscle failure.

Following the low volume, low intensity Familiarization Phase, use The RPE Method as the primary guide for intensity and terminate working sets when the RPE reaches a 6 to 8 (on a 1 to 10 scale).

Avoid overhead presses below 8 repetitions per set.

Avoid extended isometric contractions (e.g., extended planks).

Avoid the Valsalva maneuver.

Following the first or second cycle of the above four suggested phases, loading zones can shift to 12 to 15 reps/set, 10 to 12 reps/set, 8 to 10 reps/set, and 6 to 8 reps/set at the discretion of the fitness professional, exerciser, the client, or the exerciser’s healthcare provider (if appropriate). This should be based on fitness level, absence of symptoms, well-controlled resting blood pressure, and positive response and natural progression to exercise.

It is the fitness professional or exerciser’s responsibility to determine repetition ranges, phase lengths, and session intensities on a case by case, session by session basis.

Section 2: Pulmonary Conditions (Chronic Obstructive Pulmonary Disease (COPD), Pulmonary Hypertension, Asthma)

Introduction

Pulmonary conditions such as Chronic Obstructive Pulmonary Disease (COPD), Pulmonary Hypertension (PH), and Asthma are prevalent and impactful disorders affecting millions worldwide. Each condition presents unique challenges to respiratory function, yet they share a common consequence: diminished quality of life due to impaired oxygen exchange and physical limitations. Despite these challenges, structured exercise programs can play a transformative role in improving pulmonary health and overall functionality when tailored appropriately.

Overview of Conditions

Chronic Obstructive Pulmonary Disease (COPD): A progressive condition characterized by chronic airflow obstruction and persistent respiratory symptoms such as dyspnea and cough. COPD encompasses chronic bronchitis and emphysema, often resulting from long-term exposure to harmful particles, primarily tobacco smoke.

Pulmonary Hypertension (PH): Defined by elevated pulmonary arterial pressures, PH can occur as a standalone condition (Pulmonary Arterial Hypertension) or secondary to other diseases such as chronic lung disease or left heart disease. It places significant strain on the right ventricle, leading to eventual heart failure if untreated.

Asthma: A chronic inflammatory condition of the airways characterized by reversible airflow obstruction, episodic wheezing, chest tightness, and coughing. Triggers include allergens, exercise, and environmental irritants.

Pathology and Pathophysiology

COPD: Chronic inflammation leads to structural changes, such as loss of alveolar elasticity, airway remodeling, and mucus hypersecretion. This combination results in gas trapping and reduced expiratory flow, progressively impairing oxygen exchange.

PH: The condition is marked by vascular remodeling, characterized by smooth muscle hypertrophy, endothelial dysfunction, and increased pulmonary vascular resistance. These changes elevate pulmonary arterial pressures, imposing strain on the right ventricle and ultimately leading to its failure.

Asthma: Episodes of airway hyperresponsiveness stem from inflammation and mast cell activation. This leads to bronchoconstriction, excessive mucus production, and airflow limitation, often reversible with treatment.

All three conditions—COPD, PH, and Asthma—share an underlying inflammatory component that contributes to respiratory limitation and systemic implications. Chronic inflammation damages pulmonary structures and impairs gas exchange in COPD, drives vascular remodeling and pressure overload in PH, and triggers episodic airway hyperresponsiveness in Asthma. This persistent inflammation not only exacerbates localized symptoms but also leads to systemic effects such as increased oxidative stress and heightened cardiovascular risk, underscoring the importance of integrated therapeutic approaches to manage both pulmonary and systemic health challenges.

Degrees of Severity

Therapy, Precautions, and Contraindications

Common therapies for pulmonary conditions involve a combination of pharmacological and non-pharmacological interventions, each tailored to the specific needs of the condition. Pharmacological approaches include bronchodilators, such as Short-Acting Beta-Agonists (SABAs) and Long-Acting Beta-Agonists (LABAs), which relieve bronchospasm and improve airflow in conditions like COPD and Asthma. Inhaled corticosteroids (ICS) reduce inflammation, preventing exacerbations and maintaining airway patency, while PH-specific agents, such as prostacyclin analogs and phosphodiesterase-5 inhibitors, enhance pulmonary blood flow and reduce vascular resistance. Non-pharmacological interventions play a crucial role, particularly pulmonary rehabilitation, which combines education, exercise training, and breathing techniques such as pursed-lip breathing (see side bar below) to improve functional capacity and reduce symptoms like dyspnea. Oxygen therapy is essential for patients with chronic hypoxemia, increasing exercise tolerance and enhancing quality of life. Together, these therapies provide a comprehensive approach to managing both acute symptoms and long-term disease progression.

Common Medications and Their Impacts on Exercise

Muscle cramping, tachycardia, and fatigue are common side effects of pulmonary medications and the conditions themselves, significantly impacting exercise tolerance and adherence. Muscle cramping may result from electrolyte imbalances or medication side effects, requiring proper hydration and nutrient intake to mitigate. Tachycardia, a potential side effect of beta-agonists, necessitates careful intensity monitoring using tools like the Borg Scale or RPE to prevent overexertion. Fatigue, often exacerbated by systemic inflammation or medication-related energy depletion, underscores the importance of a flexible, autoregulated, and periodized exercise program. This approach allows for day-to-day adjustments based on individual readiness, ensuring safe progression while maximizing adherence and benefits. By incorporating gradual warm-ups, controlled progression, and monitoring, these challenges can be effectively addressed to optimize outcomes.Pursed Lip Breathing TechniqueThe pursed lip breathing technique involves breathing in slowly through the nose for two counts, keeping the mouth closed. The individual then takes a normal breath and puckers or "purses" their lips as if they are going to whistle and breathe out.Pursed Lip Breathing TechniqueThe pursed lip breathing technique involves breathing in slowly through the nose for two counts, keeping the mouth closed. The individual then takes a normal breath and puckers or "purses" their lips as if they are going to whistle and breathe out.

General Recommendations

Avoid or be wary of exercising in environments that include cold, dry, or humid air, have high pollen counts, or have chlorinated water. These can all serve as respiratory irritants and create inflammation in the lungs.

Avoid exercising to the point of distressing symptoms (e.g., high-intensity aerobic exercise), especially if feeling light-headed, dizzy, or exhibiting other symptoms of respiratory distress.

If exercise capacity is decreasing it may be a sign of increased disease progression, and the individual should be referred to a healthcare provider.

It may be prudent to use a pulse oximeter to measure oxygen saturation. Exercise should be discontinued if oxygen saturation level drops below 90%.

Emphasize the use of a gradual warm-up and cool-down to reduce the risk of bronchospasm, particularly in asthma patients.

Implementation of individualized progression plans based on patient tolerance, using tools such as The RPE Method to guide intensity adjustments.

Initial Exercise Assessments

Flexibility and trigger point assessment. The fitness professional or exerciser should incorporate the flexibility and trigger point assessments as described in Chapter 7 along with the additional considerations described in Chapter 11.

Cardiovascular assessment. The fitness professional or exerciser can follow the guidelines in Chapter 5 with the following considerations:

Pay special attention to signs of breathlessness and fatigue.

Receive regular feedback from the person regarding how they feel and if they feel comfortable increasing intensity during the graded assessment.

Begin the assessment at an RPE of 2 to 3 (i.e., very light) before progressing in intensity.

Consider early termination of the assessment when an RPE of 4 to 5 has been achieved. This can be used as the baseline intensity for initial program design.

If the exerciser asks to terminate the assessment prior to achieving an RPE of 4 on a 1 to 10 scale, it is recommended the fitness professional or exerciser seek medical advice before engaging in an exercise program, as this is a sign of severe deconditioning (Garber, 2011).

Strength assessment: The fitness professional or exerciser should incorporate the strength assessment as part of the Familiarization Phase, as described in Chapter 6.

Program Design Considerations

Cardiovascular program design. The fitness professional or exerciser is reminded to “start low and progress slow” when designing programs for those who have been diagnosed with pulmonary disease. Progression will likely occur at a much slower rate as compared with able-bodied people. The fitness professional should be empathetic with the person’s condition and have a working knowledge of the RPE-Talk Test method as the primary guide to intensity. Individuals with pulmonary disease may not be able to sustain continuous aerobic exercise for a significant time (e.g., 10 to 15 minutes), at least initially. Walking and stationary cycling are normally the preferred modes of exercise.

When the person can sustain 20 minutes of continuous, low-intensity exercise, they may be placed on a modified interval training program. This program should have them move from below or within the low end of their training zone during the recovery portion (e.g., 40 to 60% of predicted max heart rate), to a moderate level of intensity (e.g., RPE of 5) for short intervals (e.g., 5 to 10 seconds). It is the fitness professional or individual’s responsibility to determine the efficacy of this type of program based on their fitness, feedback, and ability to tolerate an RPE of approximately 5 (on a 1 to 10 scale). It is also helpful for the fitness professional to elicit feedback from the client’s primary care provider or allied health practitioner and provide updates regarding their progression.

It is the fitness professional or exerciser’s responsibility to determine frequency, duration, intensity, and progression on a case by case and session by session basis.

Strength program design. The fitness professional or exerciser can follow the resistance training guidelines covered in Chapters 4 and 6 with the following additional considerations:

Always ensure “readiness to train” questions are asked prior to every session. Based on the answers to each question, the volume and intensity of the session should be adjusted accordingly.

If the exerciser begins to develop any of the following symptoms: light-headedness, dizziness, nausea, pale or clammy skin, excessive sweating, headache, chest pain, chest tightness, heart palpitations, unusual fatigue, blurred vision, or feels anything “other than the norm,” terminate the session and seek medical advice.

Start low, progress slow.

During the Familiarization Phase, use The RPE Method to choose loads for every exercise. The initial RPE should be ~3 (on a 1 to 10 scale).

During the Familiarization Phase keep volume low—only one to two exercises are performed for each major muscle group.

Extend rest periods between sets as needed. Successive sets or exercises should only be performed when the exerciser’s heart and breathing rate have returned to a resting level and they feel physically and mentally ready and capable of performing the next set or exercise.

Avoid extended isometric contractions.

Avoid the Valsalva maneuver.

If the individual is significantly deconditioned, consider beginning program design primarily with single-joint exercises or low intensity multi-joint exercises for each major muscle group before progressing. Examples include:

Legs (body weight bridge, leg press (at a load significantly less than body weight), knee extension, knee curl, bilateral calf raise).

Back (straight arm pulldown, light single arm cable or dumbbell row).

Chest (chest fly, light dumbbell press, or machine press).

Shoulders (light lateral raise, light reverse fly)

Following the first or second cycle of the above three suggested phases after the Familiarization Phase, loading zones may be shifted to 12 to 15 reps/set, 10 to 12 reps/set, 8 to 10 reps/set, and 6 to 8 reps/set at the discretion of the fitness professional, the exerciser, and their healthcare provider (if appropriate). This should be based on fitness level, absence of symptoms, positive response and natural progression to exercise.

Since resistance training is primarily an anaerobic activity, there may be less risk of shortness of breath during sessions. This is contingent upon having appropriate rest periods between sets (i.e., allowing the heart rate and breathing rate to return to at or near resting level), exercise selection, and exercise intensity selected (i.e., RPE).

It is the fitness professional or exerciser’s responsibility to determine repetition ranges, phase lengths, and session intensities on a case by case, session by session basis.

Summary

Chapter 13 emphasizes the importance of designing tailored exercise programs for individuals with cardiovascular and pulmonary conditions, focusing on safety, progression, and collaboration with healthcare providers. Key sections provide detailed guidelines for hypertension and pulmonary conditions, offering practical advice for assessments, cardiovascular and resistance training, and special considerations.

For hypertension, the chapter highlights the need for frequent monitoring of blood pressure, gradual progression in aerobic and resistance training, and the careful implementation of high-intensity interval training. It prioritizes low-intensity aerobic exercises to maximize health benefits.

For pulmonary conditions, the chapter stresses "start low and progress slow," addressing unique challenges such as dyspnea and ventilatory muscle fatigue. Specific recommendations include using the RPE-Talk Test method, extended rest periods, and single-joint exercises for severely deconditioned individuals.

These condition-specific considerations exemplify how the universal algorithm adapts to diverse medical needs, ensuring safety and efficacy for special populations.

Practical Application

For Fitness Professionals:

Conduct thorough initial assessments to identify individual capacities and limitations.

Use tools like the RPE scale, blood pressure monitors, and readiness-to-train questions to guide exercise intensity and progression.

Integrate flexibility, cardiovascular, and strength components into programs, customizing duration and intensity based on client feedback and clinical input.

For Clients:

Engage actively in program planning, providing feedback on exercise tolerances and symptoms.

Use supportive techniques such as pursed-lip breathing for pulmonary conditions and monitor for signs of fatigue or distress during sessions.

Adhere to prescribed exercise frequency and gradually progress toward higher intensity levels under supervision.

For Healthcare Providers:

Foster collaboration with fitness professionals to create integrated care plans.

Provide essential medical information and clearances to support safe exercise participation.

Regularly review patient progress and recommend adjustments as needed.

This chapter serves as a comprehensive guide for safely and effectively managing exercise programs for individuals with cardiovascular and pulmonary conditions, promoting better health outcomes and quality of life.