Cardiac Rehabilitation and Exercise

Cardiac rehabilitation is a structured, multidisciplinary programme that helps people recover after a cardiac event or live better with heart disease. Exercise training is its core ingredient: supervised aerobic and resistance activity that improves fitness, eases symptoms, and supports secondary prevention. Alongside exercise it includes risk-factor management, education, and psychological support, and physiotherapists play a central role in delivering the exercise component.

Definition

Cardiac rehabilitation is a comprehensive, supervised programme of exercise training, risk-factor modification, education, and psychosocial support designed to restore function and reduce the risk of further cardiac events in people with cardiovascular disease.

Scope

This topic covers the rationale, components, and evidence for exercise-based cardiac rehabilitation in conditions such as coronary heart disease and heart failure. It addresses how exercise produces cardiovascular adaptation and how rehabilitation contributes to secondary prevention. It is a reference and educational overview, not individualised exercise prescription or medical advice.

Core questions

• Why is exercise training the core component of cardiac rehabilitation?
• What outcomes does exercise-based cardiac rehabilitation improve in coronary heart disease and heart failure?
• How does cardiac rehabilitation contribute to secondary prevention?
• How are home-based and centre-based delivery compared?

Key concepts

• Exercise-based cardiac rehabilitation
• Secondary prevention
• Aerobic and resistance training
• Functional capacity
• Risk-factor modification
• Home-based versus centre-based delivery
• Heart failure rehabilitation

Mechanisms

Supervised exercise imposes a graded cardiovascular load that, repeated over a programme, improves aerobic capacity, peripheral muscle function, and the efficiency of oxygen delivery and use, so that everyday activity demands a smaller share of maximal capacity. In coronary heart disease, exercise-based rehabilitation is paired with secondary-prevention measures addressing modifiable risk factors (Anderson et al., 2016; Piepoli et al., 2010). In heart failure, exercise training is associated with improvements in exercise capacity and health-related quality of life (Long et al., 2019). Programmes may be delivered in a centre or, for suitable patients, at home (Thomas et al., 2019).

Clinical relevance

Exercise-based cardiac rehabilitation is recommended within the management of coronary heart disease and chronic heart failure and is associated with improved health-related quality of life and, in coronary heart disease, reductions in cardiovascular hospital admissions (Anderson et al., 2016; Long et al., 2019). This entry summarises the field for orientation; eligibility, exercise prescription, and supervision are determined individually by qualified clinicians.

Epidemiology

Coronary heart disease and heart failure affect very large populations and are major causes of morbidity and recurrent hospital admission. Systematic reviews of exercise-based cardiac rehabilitation in these groups report consistent benefits for quality of life and, in coronary heart disease, for cardiovascular hospitalisation, although effects on some outcomes vary across trials (Anderson et al., 2016; Long et al., 2019).

History

Early post-infarction care emphasised prolonged bed rest; from the 1960s onward graded mobilisation and then structured exercise programmes replaced it, and cardiac rehabilitation evolved into a comprehensive secondary-prevention service. Cumulative Cochrane meta-analyses (Anderson et al., 2016; Long et al., 2019) and society position papers (Piepoli et al., 2010; Thomas et al., 2019) have established its components and evidence base.

Debates

Does exercise-based cardiac rehabilitation reduce mortality?

Meta-analyses consistently show improved quality of life and reduced cardiovascular hospitalisation in coronary heart disease, but effects on all-cause and cardiovascular mortality are less certain and vary with population and era of trials, keeping the magnitude of the mortality benefit under discussion.

Seminal works

• anderson-2016-cochrane
• anderson-2016-jacc
• long-2019

Frequently asked questions

Who is cardiac rehabilitation for?

It is generally offered to people recovering from or living with cardiovascular conditions such as coronary heart disease and heart failure. Specific eligibility is decided by the clinical team.

Can cardiac rehabilitation be done at home?

For appropriately selected patients, home-based delivery is an option that society statements describe as a reasonable alternative to centre-based programmes; the choice depends on individual clinical assessment.