University of Leicester
Browse
Moderate-intensity stepping in older adults_insights from treadmill walking and daily living.pdf (913.28 kB)

Moderate-intensity stepping in older adults: insights from treadmill walking and daily living

Download (913.28 kB)
journal contribution
posted on 2023-05-25, 09:39 authored by T Yates, J Henson, P McBride, B Maylor, LY Herring, JA Sargeant, MJ Davies, PC Dempsey, AV Rowlands, CL Edwardson
Background: A step cadence of 100 steps/minute is widely used to define moderate-intensity walking. However, the generalizability of this threshold to different populations needs further research. We investigate moderate-intensity step cadence values during treadmill walking and daily living in older adults. Methods: Older adults (≥ 60 years) were recruited from urban community venues. Data collection included 7 days of physical activity measured by an activPAL3™ thigh worn device, followed by a laboratory visit involving a 60-min assessment of resting metabolic rate, then a treadmill assessment with expired gas measured using a breath-by-breath analyser and steps measured by an activPAL3™. Treadmill stages were undertaken in a random order and lasted 5 min each at speeds of 1, 2, 3, 4 and 5 km/h. Metabolic equivalent values were determined for each stage as standardised values (METSstandard) and as multiples of resting metabolic rate (METSrelative). A value of 3 METSstandard defined moderate-intensity stepping. Segmented generalised estimating equations modelled the association between step cadence and MET values. Results: The study included 53 participants (median age = 75, years, BMI = 28.0 kg/m2, 45.3% women). At 2 km/h, the median METSstandard and METSrelative values were above 3 with a median cadence of 81.00 (IQR 72.00, 88.67) steps/minute. The predicted cadence at 3 METSstandard was 70.3 (95% CI 61.4, 75.8) steps/minute. During free-living, participants undertook median (IQR) of 6988 (5933, 9211) steps/day, of which 2554 (1297, 4456) steps/day were undertaken in continuous stepping bouts lasting ≥ 1 min. For bouted daily steps, 96.4% (90.7%, 98.9%) were undertaken at ≥ 70 steps/minute. Conclusion: A threshold as low as 70 steps/minute may be reflective of moderate-intensity stepping in older adults, with the vast majority of all bouted free-living stepping occurring above this threshold.

Funding

Sedentary behaviour in older adults: investigating a new therapeutic paradigm

Medical Research Council

Find out more...

National Institute for Health Research (NIHR) Leicester Biomedical Research Centre

History

Author affiliation

Diabetes Research Centre, NIHR Leicester Biomedical Research Centre, University of Leicester

Version

  • VoR (Version of Record)

Published in

International Journal of Behavioral Nutrition and Physical Activity

Volume

20

Issue

1

Pagination

31

Publisher

BMC part of Springer Nature

issn

1479-5868

eissn

1479-5868

Copyright date

2023

Available date

2023-05-25

Spatial coverage

England

Language

eng

Usage metrics

    University of Leicester Publications

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC