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Aim of the study is to develop prediction equations for calculating FFM, TBW, ECW and SMM based on the gold standard reference methods ADP, DXA, MRI, D2O and NaBr on the one hand and measurement data of the BIA devices on the other hand. The equations are necessary to use the device as a Body Composition Analyzer with an acceptable accuracy level for clinical practice.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| healthy adults | The study will cover 130 healthy adults. 65 men and 65 women in an age range of 18 to 65 years with a BMI of 18.5 to 35 kg/m2 are planned to be recruited. |
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| Measure | Description | Time Frame |
|---|---|---|
| Bioelectrical Impedance of 5 and 50 kHz for one body side | 15 minutes | |
| Bioelectrical Impedance of 50 kHz for all 4 extremities | 15 minutes |
| Measure | Description | Time Frame |
|---|---|---|
| Bioelectrical Impedance of 1, 1.5, 2, 3, 7.5, 10, 15, 20, 30, 75, 100, 150, 200, 300, 500, 750 and 1,000 kHz | The measurement is planned to be done for all body segments: right arm, left arm, right leg, left leg, trunk, right body side and left body side. In total resistance and reactance at 19 frequencies for 7 body segments are planned to be measured. | 15 minutes |
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Inclusion Criteria:
The study will cover 130 healthy adults. 65 men and 65 women in an age range of 18 to 65 years with a BMI of 18.5 to 35 kg/m2 are planned to be recruited.
Exclusion Criteria:
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Data of 130 healthy adults are planned to be collected.
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| Name | Affiliation | Role |
|---|---|---|
| Manfred J. Mueller, Prof. Dr. med. | University of Kiel | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Institute of Human Nutrition and Food Science | Kiel | 24105 | Germany |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 36933351 | Derived | Enderle J, Reljic D, Jensen B, Peine S, Zopf Y, Bosy-Westphal A. Normal values for body composition in adults are better represented by continuous reference ranges dependent on age and BMI. Clin Nutr. 2023 May;42(5):644-652. doi: 10.1016/j.clnu.2023.03.006. Epub 2023 Mar 9. | |
| 32977906 | Derived | Jensen B, Braun W, Both M, Gallagher D, Clark P, Gonzalez DL, Kluckmann K, Bosy-Westphal A. Configuration of bioelectrical impedance measurements affects results for phase angle. Med Eng Phys. 2020 Oct;84(1):10-15. doi: 10.1016/j.medengphy.2020.07.021. Epub 2020 Jul 30. |
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whole blood
| Generation of prediction equations for Sceletal Muscle Mass based on MRI | 1 hour |
| Bioelectrical Impedance in sitting, lying and standing | 15 minutes |
| Precision Study | The precision study pursues three targets:
| 15 min |