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Table 1 Factors that may trigger an episode of low back pain to be evaluated in the study

From: Triggers for an episode of sudden onset low back pain: study protocol

Physical Factors Hazardous manual tasks:
     - tasks involving heavy loads;
     - tasks involving awkward postures;
     - tasks involving objects that could not be positioned close to the body;
     - tasks involving live people or animals;
     - tasks involving loads that are unstable, unbalanced or difficult to grasp or hold;
  Vigorous physical activity
  Moderate physical activity
  A slip/trip or fall
  Consumption of alcohol
  Sexual activity
Psychological Being distracted
Factors Being fatigued or tired