Impedance

Definition

Impedance in a nutritional context usually refers to the measurement of body composition, particularly body fat percentage, through resistance analysis.

Scientific / Technical Definition

Impedance is a method used in bioelectrical impedance analysis (BIA) to estimate body composition, including body fat and muscle mass. It measures the resistance of body tissues to a small, safe electrical signal, which helps determine the proportional distribution of fluid and fat-free mass.

Benefits

• Provides a non-invasive method to estimate body fat percentage.
• Helps monitor changes in body composition over time for fitness or health goals.
• Can assist in assessing overall health and nutritional status.

Examples

• Bioelectrical impedance scales used in gyms and medical facilities
• Handheld impedance devices for personal fitness assessment

Additional Information

• importance: Understanding body composition through impedance can help individuals make informed decisions about their health, diet, and exercise regimes.

Related Terms

• Body Mass Index
• Lean Body Mass
• Body Composition
• Body Fat Percentage

References

• Bioelectrical Impedance Analysis: A Review of Principles and Applications
• Bioelectrical Impedance Analysis in Body Composition Measurement