Walking and inflammatory markers in individuals screened for type 2 diabetes
Thomas Yates1, Melanie Davies, Emer Brady
1School of Sport and Exercise Sciences, Loughborough University, Ashby Road, Loughborough, Leicestershire, LE11 3TU, UK. t.e.yates@lboro.ac.uk
Objective:
To investigate the association of walking activity with inflammatory markers and fasting insulin in a bi-ethnic population screened for type 2 diabetes in Leicester, United Kingdom, between 2005 and 2006.
Method:
Physical activity, adipocytokine, high-sensitivity C-reactive protein and fasting insulin measurements were available for 400 individuals screened for type 2 diabetes. Of the 400 participants, 56% were diagnosed with normal glucose control, 36% with prediabetes and 8% with diabetes.
Results:
Multivariate statistical analysis showed that those who reported walking for at least 30 min on at least 5 days/week had lower levels of C-reactive protein, interleukin-6, and tumor necrosis factor-alpha compared to those who reported lower walking activity levels, after adjustment for other modes of moderate-to-vigorous intensity physical activity, age, ethnicity, sex, social deprivation and smoking status. Further adjustment for waist circumference attenuated the association of walking with tumor necrosis factor-alpha.
Conclusion:
Walking activity, independent of other forms of physical activity, is associated with lower levels of circulating pro-inflammatory markers.
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