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Updated: May 9, 2026

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Published on: March 7, 2019

Leisure time physical activity and mortality.

Nina Føns Johnsen¹, Annette Ekblond, Birthe Lykke Thomsen

¹Danish Cancer Society Research Center, Copenhagen, Denmark. nina@cancer.dk

Epidemiology (Cambridge, Mass.)

|July 23, 2013

Summary

Participating in leisure physical activities like sports or gardening lowers mortality risk. Avoiding a sedentary lifestyle appears more crucial than the duration of activity for health benefits.

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Area of Science:

Epidemiology
Public Health
Preventive Medicine

Background:

Existing research suggests physical activity's mortality benefits may stem from a participation threshold.
Sedentary lifestyles are increasingly recognized as a significant public health concern.

Purpose of the Study:

To investigate the association between leisure time physical activity and all-cause mortality.
To explore participation thresholds and dose-response relationships in physical activity and mortality.

Main Methods:

Utilized Cox proportional hazards models in the Danish Diet, Cancer and Health cohort (29,129 women, 26,576 men).
Analyzed self-reported physical activity, examining participation (yes/no), hours spent, and dose-response relationships using linear splines.

Main Results:

Participation in sports, cycling, and gardening was associated with lower mortality rates in women and men.
Men engaging in do-it-yourself activities also showed reduced mortality.
A weak adverse dose-response was observed for walking and gardening, with minimal impact.

Conclusions:

Physical activity participation, rather than duration, is linked to reduced mortality.
Avoiding a sedentary lifestyle is a key factor in mitigating mortality risk.
Non-participation in specific physical activities constitutes a significant risk factor for mortality.