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Physische Aktivität bei älteren Menschen mit Augenerkrankungen

Anwendbarkeit von Armbandakzelerometern

Physical activity in older persons with eye diseases

Applicability of wrist-worn accelerometer

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Zusammenfassung

Hintergrund und Fragestellung

Physische Aktivität (PA) beeinflusst altersabhängige Erkrankungen, ist jedoch schwierig zu messen. Es wurde die Akzeptanz von Armbandakzelerometern (ACC) bei älteren Patienten mit Augenerkrankungen evaluiert sowie ein Vergleich mit einem validierten Aktivitätsfragebogen untersucht.

Material und Methoden

50 Probanden wurden klinisch untersucht, mit dem International Physical Activity Questionnaire (IPAQ) zu ihrer PA befragt und haben im Anschluss ein ACC erst 7 und dann 30 Tage getragen. Daten wurden deskriptiv ausgewertet und Einflussfaktoren auf PA mit linearen Modellen untersucht.

Ergebnisse

Volle Akzeptanz der ACC lag nach 7 Tagen bei 94 % und nach 30 Tagen bei 74 %. Von 36 Probanden konnten Daten für beide Trageintervalle ausgewertet werden. Der IPAQ (z. B. moderate Aktivität: 1183,4 ± 864,3 min/Woche) misst im Vergleich zum ACC über 7 und 30 Tage (248,5 ± 266,0 min/Woche und 248,8 ± 190,6 min/Woche) wesentlich höhere Werte (p < 0,05 für beide Trageintervalle). Die ACC-Daten über 7 und 30 Tage waren vergleichbar (starke PA: 25,4 ± 33,7 min/Woche und 22,5 ± 29,0 min/Woche). In multiplen, linearen Modellen war BMI mit 7‑tägiger moderater Aktivität (β = −0,22 [95 %-KI: −21,7; −1,9]; p = 0,021) und starker Aktivität (β = −0,35 [95 %-KI: −4,3; −0,5]; p = 0,033), sowie 30-tägiger starker Aktivität (β = −0,45 [95 %-KI: −5,9; −0,1]; p = 0,044) assoziiert. Andere Faktoren wie Visus des besseren Auges, Alter und Geschlecht waren nicht assoziiert.

Diskussion

Akzelerometer werden von älteren Menschen mit Augenerkrankungen zur Messung der PA akzeptiert. Die Ergebnisse sind genauer, d. h. haben eine geringere Schwankungsbreite, und messen eine niedrigere PA als ein vergleichbarer PA-Fragebogen. Eine 7‑tägige Tragephase ist ausreichend für die Erfassung der durchschnittlichen PA bei älteren Menschen und damit gut in Studien anwendbar.

Abstract

Background and objectives

Physical activity (PA) impacts age-related diseases but its measurement is difficult. The acceptance of wrist-worn accelerometers (ACC) in older patients with eye diseases was evaluated and the results were compared with a validated activity questionnaire.

Materials and methods

In this study 50 patients underwent a clinical examination and were interviewed with the International Physical Activity Questionnaire (IPAQ). They then wore an ACC for 7 days and then for 30 days. After descriptive analysis of the data, influencing factors on the PA were assessed using multiple, linear models.

Results

A total of 94% of participants wore the ACC for 7 days and 74% for 30 days. For 36 patients complete data were available. In comparison, IPAQ (e. g. moderate PA: 1183.4 ± 864.3 min/week) vs. ACC across 7 and 30 days (248.5 ± 266.0 min/week and 248.8 ± 190.6 min/week, respectively) showed substantially higher results (p < 0.05 for both intervals). The ACC data across 7 and 30 days were comparable (e. g. high PA: 25.4 ± 33.7 min/week and 22.5 ± 29.0 min/week). In multiple, linear models body mass index (BMI) was associated with 7 days moderate activity (β = −0.22 [95% confidence intervals CI: −21.7; −1.9]; p = 0.021) and vigorous activity (β = −0.35 [95% CI: −4.3; −0.5]; p = 0.033) as well as 30 days vigorous activity (β = −0.45 [95% CI: −5.9; −0.1]; p = 0.044). Other factors such as better visual acuity, age and gender were not associated.

Conclusion

The use of ACCs are acceptable to the majority of older patients with eye diseases. The results of ACC are more precise with lower variation, and much lower PA than those of a comparable activity questionnaire. Measurement over 7 days is sufficient for capturing the average PA in older patients and can be easily applied in clinical trials.

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Förderung

Diese Studie wurde von der German Scholars Organization/Else Kröhner Fresenius Stiftung gefördert (GSO/EKFS 16).

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Correspondence to R. P. Finger.

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Interessenkonflikt

M. Heinemann, S.G. Welker, F.G. Holz und R.P. Finger geben an, dass kein Interessenkonflikt besteht.

Alle im Manuskript beschriebenen Untersuchungen am Menschen wurden mit der Zustimmung der zuständigen Ethik-Kommission, im Einklang mit nationalem Recht, sowie gemäß der Deklaration von Helsinki von 1975 (in der aktuellen, überarbeiteten Fassung) durchgeführt. Von allen beteiligten Patienten liegt eine Einverständniserklärung vor.

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Die Ergebnisse wurden auf dem DOG-Kongress 2017 in Berlin präsentiert.

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Heinemann, M., Welker, S.G., Holz, F.G. et al. Physische Aktivität bei älteren Menschen mit Augenerkrankungen. Ophthalmologe 116, 351–356 (2019). https://doi.org/10.1007/s00347-018-0688-y

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