Table 8.3 Summary: Causes of poor athletic performance

Intrinsic problems

Lack of ability

Inappropriate or inadequate training

Behaviour

Cardiovascular disease

Mitral regurgitation

Atrial fibrillation

Other supraventricular arrhythmias

Ventricular arrhythmias

Myocarditis

Aortic regurgitation, tricuspid regurgitation, congenital heart disease

Aorto-iliac thromboembolism

Musculo-skeletal

Unilateral lameness

Bilateral lameness

Multiple lameness<

Myopathies

Upper airway disease

Recurrent laryngeal neuropathy (static or dynamic)

Dorsal displacement of the soft palate (dynamic)

Epiglottic entrapment (static or dynamic)

Dynamic collapse of the pharynx<

Mass in pharynx

Laryngeal chondritis

Alar fold obstruction

Nasal chamber obstruction

Lower airway disease

Respiratory infections

Allergic small airway disease

Exercise induced pulmonary haemorrhage