Gymnastik- och idrottshögskolan, GIH

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Perspectives on exercise intensity, volume, step characteristics and health outcomes in walking for transport
Gymnastik- och idrottshögskolan, GIH, Institutionen för fysisk aktivitet och hälsa. (Rörelse, hälsa och miljö)ORCID-id: 0000-0003-3547-425X
Gymnastik- och idrottshögskolan, GIH, Institutionen för fysisk aktivitet och hälsa. (Rörelse, hälsa och miljö)ORCID-id: 0000-0002-8042-2822
Gymnastik- och idrottshögskolan, GIH, Institutionen för fysisk aktivitet och hälsa. (Rörelse, hälsa och miljö)ORCID-id: 0000-0001-5213-4439
Gymnastik- och idrottshögskolan, GIH, Institutionen för fysiologi, nutrition och biomekanik. (Rörelse, hälsa och miljö)ORCID-id: 0000-0001-8161-5610
2022 (engelsk)Inngår i: Frontiers In Public Health, ISSN 2296-2565, s. 1-19, artikkel-id 911863Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: Quantification of movement intensity and energy utilization, together with frequency of trips, duration, distance, step counts and cadence, is essential for interpreting the character of habitual walking for transport, and its potential support of health. The purpose of the study is to illuminate this with valid methods and novel perspectives, and to thereby provide a new basis for characterizing and interpreting walking in relation to health outcomes.

Methods: Habitual middle-aged commuting pedestrians (males = 10, females= 10) were investigated in the laboratory at rest and with maximal treadmill and cycle ergometer tests. Thereafter, levels of oxygen uptake, energy expenditure, ventilation, heart rate, blood lactate, rated perceived exertion, cadence, number of steps, duration, distance, and speed were recorded during the normal walking commute of each participant in Greater Stockholm, Sweden. The number of commutes per week over the year was self-reported.

Results: Walking in the field demanded about 30% more energy per km compared to level treadmill walking. For both sexes, the walking intensity in field was about 46% of maximal oxygen uptake, and energy expenditure amounted to 0.96 kcal · kg−1 · km−1. The MET values (males: 6.2; females:6.5) mirrored similar levels of walking speed (males: 5.7; females: 5.9 km · h−1) and levels of oxygen uptake (males: 18.6; females: 19.5mL · kg−1 · min−1). The average number of MET-hours per week in a typical month was 22 for males and 20 for females. This resulted in a total weekly energy expenditure of∼1,570 and 1,040 kcal for males and females, respectively. Over the year, the number of walking commutes and their accumulated distance was ∼385 tripsand 800 km for both sexes.

Conclusion: Walking in naturalistic field settings demands its own studies. When males and females walk to work, their relative aerobic intensities and absolute energy demands for a given distance are similar. It is equivalent to the lower part of the moderate relative intensity domain.The combination of oxygen uptake, trip duration and frequency leads to high and sustained levels of MET-hours as well as energy expenditure per week over the year, with a clear health enhancing potential. Based on this study we recommend 6000 transport steps per day, or equivalent, during five weekdays, over the year, in order to reach optimal health gains.

sted, utgiver, år, opplag, sider
Frontiers Media S.A., 2022. s. 1-19, artikkel-id 911863
Emneord [en]
commuter walking, exercise intensity, energy expenditure, metabolic equivalent of task, trip duration, trip frequency, rated perceived exertion, cycling
HSV kategori
Forskningsprogram
Medicin/Teknik; Medicin/Teknik
Identifikatorer
URN: urn:nbn:se:gih:diva-7153DOI: 10.3389/fpubh.2022.91186ISI: 000883082900001PubMedID: 36339183OAI: oai:DiVA.org:gih-7153DiVA, id: diva2:1703836
Prosjekter
FAAP
Forskningsfinansiär
Swedish Transport Administration, TrV 2017/63917-6522; TrV 2020/119325Region Stockholm, LS0401-0158Tilgjengelig fra: 2022-10-14 Laget: 2022-10-14 Sist oppdatert: 2022-11-29bibliografisk kontrollert

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Schantz, PeterOlsson, Karin Sofia ElisabethSalier Eriksson, JaneRosdahl, Hans

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