Postural stability of workers exposed to lead

Area of Science:

• Occupational Health
• Neuroscience
• Biomechanics

Background:

• Lead exposure is a known neurotoxin.
• Occupational lead exposure can impact various physiological systems.
• Postural stability is crucial for daily function and injury prevention.

Purpose of the Study:

• To assess postural sway parameters in lead-exposed workers compared to a control group.
• To investigate the impact of lead exposure on postural stability using a computerized system.

Main Methods:

• Utilized a computerized biomechanics platform system to measure postural sway.
• Compared 60 lead-exposed workers with 60 controls.
• Collected sway parameter data with eyes open and closed.

Main Results:

• Lead workers showed significantly poorer postural stability, especially with eyes closed.
• Differences were noted in sway path length, velocity, and area.
• No significant association found between current blood lead levels and sway parameters.

Conclusions:

• Lead exposure leads to significant postural instability, particularly when visual input is compromised.
• Lead may impact the sensory neural axis, affecting balance.
• Further research is needed to understand the dose-response relationship.