Table 2

Factors that may influence postural hypotension

Speed of positional change
Time of day (worse in the morning)
Prolonged recumbency
Warm environment (hot weather, central heating, hot bath)
Raising intrathoracic pressure: micturition, defaecation or coughing
Food and alcohol ingestion
Physical exertion
Manoeuvres and positions (bending forward, abdominal compression, leg crossing, squatting, activating calf muscle pump)2-150
Drugs with vasoactive properties (including dopaminergic agents)
  • 2-150 These manoeuvres usually reduce the postural fall in blood pressure, unlike the others.