Cardiorespiratory Reference Data in Older Adults: The Generation 100 Study

Overview

Journal Med Sci Sports Exerc

Specialty Orthopedics

Date 2017 Jun 10

PMID 28598909

Citations 17

Authors

Dorthe Stensvold

Silvana Bucher Sandbakk

Hallgeir Viken

Nina Zisko

Line Skarsem Reitlo

Javaid Nauman

Svein Erik Gaustad

Erlend Hassel

Marcel Moufack

Eivind Bronstad

Nils Petter Aspvik

Vegard Malmo

Sigurd Loe Steinshamn

Asbjorn Stoylen

Sigmund Alfred Anderssen

Jorunn L Helbostad

Oivind Rognmo

Ulrik Wisloff

Affiliations

Soon will be listed here.

Abstract

Purpose: Cardiorespiratory fitness (CRF) is regarded a clinical vital sign, and accurate reference values for all age groups are essential. Little data exist on CRF and cardiorespiratory function in older adults. The aim of this study was to provide normative values for CRF and cardiorespiratory function in older adults, including people with history of cardiovascular diseases (CVD).

Methods: In total, 1537 (769 women) participants age 70 to 77 yr underwent clinical examinations and cardiopulmonary exercise tests. Peak oxygen uptake (V˙O2peak), ventilation (V˙Epeak), expiration of carbon dioxide (VV˙CO2peak), breathing frequency (BFpeak), tidal volume (VTpeak), oxygen pulse (O2 pulsepeak), ventilatory efficiency (EqV˙O2peak and EqV˙CO2peak), and 1-min HR recovery were assessed.

Results: Men compared with women had higher V˙O2peak (31.3 ± 6.7 vs 26.2 ± 5.0 mL·min·kg), BFpeak (41.8 ± 8.0 vs 39.7 ± 7.1 breaths per minute), VTpeak (2.3 ± 0.5 vs 1.6 ± 0.3), O2 pulsepeak (16.4 ± 3.2 vs 11.3 ± 2.0), V˙CO2peak (2.9 ± 0.2 and 1.9 ± 0.1 L·min), V˙Epeak (96.2 ± 21.7 vs 61.1 ± 21.6 L·min), EqV˙O2peak (38.0 ± 6.9 vs 35.1 ± 5.6), and EqV˙CO2peak (33.5 ± 5.7 vs 31.9 ± 4.5). Women and men with CVD had lower V˙O2peak (14% and 19%), peak HR (5% and 6%), V˙Epeak (8% and 10%), VTpeak (7% and 4%), and lower EqV˙CO2peak (4% and 6%) compared with their healthy counterparts, respectively. Compared with healthy women and men, 1-min HR recovery was 12% and 16% lower for women and men with CVD.

Conclusions: This study represents the largest reference material on directly measured CRF and cardiorespiratory function in older men and women, with and without CVD. This novel information will help researchers and clinicians to interpret data form cardiopulmonary testing in older adults.

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