Association of Bioelectrical Impedance Phase Angle with Physical Performance and Nutrient Intake of Older Adults

Autor(en)

Sandra Unterberger, Rudolf Aschauer, Patrick A. Zöhrer, Agnes Draxler, Mirjam Aschauer, Benno Kager, Bernhard Franzke, Eva-Maria Strasser, Karl-Heinz Wagner, Barbara Wessner

Abstrakt

In recent years, the phase angle (PhA) as a raw bioelectrical impedance analysis variable has gained attention to assess cell integrity and its association to physical performance in either sports-related or clinical settings. However, data on healthy older adults are scarce. Therefore, data on body composition, physical performance and macronutrient intake from older adults (n = 326, 59.2% women, 75.2 ± 7.2 years) were retrospectively analyzed. Physical performance was evaluated by the Senior Fitness Test battery, gait speed, timed up and go and handgrip strength. Body composition was determined by the BIA and dual-energy X-ray absorptiometry (from a subgroup of n = 51). The PhA was negatively associated with the timed up and go test and age (r = −0.312 and −0.537, p < 0.001), and positively associated with the 6 min walk test, 30 s chair stand, handgrip strength, gait speed and physical performance score (r = 0.170–0.554, p < 0.05), but not protein intake (r = 0.050, p = 0.386). Hierarchical multiple regression analysis showed that especially age, sex, BMI, but also the PhA predicted the performance test outcomes. In conclusion, the PhA seems to be an interesting contributor to physical performance, but sex- and age-specific norm values still need to be determined.

Organisation(en)

Forschungsplattform Active Ageing, Institut für Sport- und Bewegungswissenschaft, Department für Ernährungswissenschaften

Externe Organisation(en)

Sozialmedizinisches Zentrum Süd – Kaiser-Franz-Josef-Spital

Journal

Nutrients

Band

15

ISSN

2072-6643

DOI

https://doi.org/10.3390/nu15061458

Publikationsdatum

03-2023

Peer-reviewed

Ja

ÖFOS 2012

303028 Sportwissenschaft, 303009 Ernährungswissenschaften, 305908 Sportmedizin, 302020 Gerontologie

Schlagwörter

ASJC Scopus Sachgebiete

Food Science, Nutrition and Dietetics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c8ca300f-7b98-4c2b-8141-2e047c950ec1