Case study: Effect of surgical metal implant on single frequency bioelectrical impedance measures of an athlete

Dale R Wagner, Dale R Wagner

Abstract

This case study examined the influence of a surgical metal implant on the bioelectrical impedance analysis (BIA) readings of an athlete. Single-frequency BIA using a tetrapolar electrode configuration was applied to both the right and left sides of a 23-year-old female jumper who had an 8 × 345 mm titanium alloy nail implanted in her left tibia. The metal implant reduced BIA resistance and reactance on the implanted side by 27 and 6 ohms, respectively. This reduction in impedance resulted in a 0.4 kg-1.9 kg increase in the estimate of fat-free mass (FFM) depending on the prediction formula used. There was a concomitant decrease in the estimate of body fat percentage (%BF) with the underestimation ranging from 0.6% to 2.7% BF depending on the prediction formula. A metal implant of substantial size can alter the BIA reading. Technicians should apply BIA to the opposite side of the body when athletes present with a surgical implant in a limb.

Keywords: bioimpedance; body composition; fat; fat-free mass; prosthesis.

Conflict of interest statement

This research was conducted without external funds, and the author declares no conflict of interest.

© 2020 The Authors. Physiological Reports published by Wiley Periodicals LLC on behalf of The Physiological Society and the American Physiological Society.

References

    1. Ackland, T. R. , Lohman, T. G. , Sundgot‐Borgen, J. , Maughan, R. J. , Meyer, N. L. , Stewart, A. D. , & Müller, W. (2012). Current status of body composition assessment in sport. Sports Medicine, 42, 227–249. 10.2165/11597140-000000000-00000
    1. Fornetti, W. C. , Pivarnik, J. M. , Foley, J. M. , & Fiechtner, J. J. (1999). Reliability and validity of body composition measures in female athletes. Journal of Applied Physiology, 87, 1114–1122. 10.1152/jappl.1999.87.3.1114
    1. Gibson, A. L. , Beam, J. R. , Alencar, M. K. , Zuhl, M. N. , & Mermier, C. M. (2015). Time course of supine and standing shifts in total body, intracellular and extracellular water for a sample of healthy adults. European Journal of Clinical Nutrition, 69, 14–19. 10.1038/ejcn.2013.269
    1. Kerr, A. , & Hume, P. A. (2018). Non‐imaging method: Bioelectrical impedance analysis In Hume P. A., Kerr D. A., & Ackland T. R. (Eds.), Best practice protocols for physique assessment in sport (pp. 101–116). Singapore: Springer.
    1. Lohman, T. G. (1992). Advances in body composition assessment. Champaign, IL: Human Kinetics.
    1. Moon, J. R. (2013). Body composition in athletes and sports nutrition: An examination of the bioimpedance analysis technique. European Journal of Clinical Nutrition, 67, S54–S59. 10.1038/ejcn.2012.165
    1. Steihaug, O. M. , Bogen, B. , Kristoffersen, M. H. , & Ranhoff, A. H. (2017). Bones, blood and steel: How bioelectrical impedance analysis is affected by hip fracture and surgical implants. Journal of Electrical Bioimpedance, 8, 54–59. 10.5617/jeb.4104
    1. Sun, S. S. , Chumlea, W. C. , Heymsfield, S. B. , Lukaski, H. C. , Schoeller, D. , Friedl, K. , … Hubbard, V. S. (2003). Development of bioelectrical impedance analysis prediction equations for body composition with the use of a multicomponent model for use in epidemiologic surveys. American Journal of Clinical Nutrition, 77, 331–340. 10.1093/ajcn/77.2.331

Source: PubMed

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