A significant effect modification was detected by physical activity (Wald test for interaction, P = 0.02), with effects of NO2 only in physically active people (HR 1.10 [95% CI 1.03 1.16]), and by smoking status (P = 0.02), with enhanced effect of NO2 in nonsmokers (1.12[1.05 1.20]) and none in previous (1.03 [0.98–1.09]) or current smokers (1.00 [0.88–1.00]).
No difference between the two groups was detected for physical activity indicators (table 4).
The highest prevalence in followed recommendations have been detected in physical activity (87.4 %), refrain from smoking (82 %), and alcohol consumption (75.4 %).
Similarly, it has been demonstrated that using activity monitors rather than questionnaires increases the likelihood of associations being detected between physical activity and a variety of health outcomes [ 10].
In the 173 patients who showed a reduced level of fatigue, a correlation was detected between physical activity and dietary level and the intensity of CRF, as demonstrated in Table 3.
Similarly, the instruments showed good known-groups validity when comparing across previously defined groups, detecting differences in physical activity (using variables not included in the PPAC scoring) between them.
Secondly, although our study size was powered to detect differences in physical activity levels between groups, it is difficult to ascertain whether our sample size is appropriate to detect potential mediation of certain variables on physical activity.
And the Lumo Lift goes beyond just posture correction – it can also track and detect movement, and physical activity including steps and calories, just like the Fitbit and other gadgets.
Thus, its sensitivity to detect dimensions of physical activity may not be optimal.
Evidence suggests that objective measures, rather than subjective tools such as questionnaires, are more likely to detect associations between physical activity and health in children.
