Effect of exercise training modality on C-reactive protein in type-2 diabetes

D L Swift, N M Johannsen, Conrad P Earnest, S N Blair, T S Church

Research output: Contribution to journalArticle

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Abstract

PURPOSE: Type-2 diabetes is associated with increased risk of cardiovascular disease and elevated C-reactive protein levels (CRP). Aerobic exercise training has been shown to improve CRP, however there are limited data evaluating the effect of other exercise training modalities (aerobic, resistance or combination training) in individuals with type-2 diabetes.

METHODS: Participants (n=204) were randomized to an aerobic exercise (aerobic), resistance exercise (resistance) or a combination of both (combination) for nine months. CRP was evaluated at baseline and at follow-up.

RESULTS: Baseline CRP was correlated with fat mass, waist circumference, BMI, and VO2peak (p < 0.05). CRP was not reduced following aerobic (0.16 mg.L -1, 95% CI: -1.0, 1.3), resistance (-0.03 mg.L -1, 95% CI: -1.1, 1.0) or combination (-0.49 mg.L -1, 95% CI: -1.5 to 0.6) training compared to control (0.35 mg.L -1, 95% CI: -1.0, 1.7). Change in fasting glucose (r=0.20, p=0.009), glycated hemoglobin (HbA1C) (r=0.21 p=0.005), and fat mass (r=0.19, p=0.016) were associated with reductions in CRP, but not change in fitness or weight (p > 0.05). There were significant trends observed for CRP among tertiles of change in HbA1C (p=0.009) and body fat (p=0.040). CONCLUSION: Aerobic, resistance or a combination of both did not reduce CRP levels in individuals with type-2 diabetes. However, exercise related improvements in HbA1C, fasting glucose, and fat mass were associated with reductions in CRP.

Original languageEnglish
Pages (from-to)1028
Number of pages1034
JournalMedicine and Science in Sports and Exercise
Volume44
Issue number6
DOIs
Publication statusPublished - 2012

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C-Reactive Protein
Type 2 Diabetes Mellitus
Exercise
Fats
Fasting
Glucose
Glycosylated Hemoglobin A
Waist Circumference
Adipose Tissue
Cardiovascular Diseases
Weights and Measures

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Effect of exercise training modality on C-reactive protein in type-2 diabetes. / Swift, D L; Johannsen, N M; Earnest, Conrad P; Blair, S N; Church, T S.

In: Medicine and Science in Sports and Exercise, Vol. 44, No. 6, 2012, p. 1028.

Research output: Contribution to journalArticle

Swift, D L ; Johannsen, N M ; Earnest, Conrad P ; Blair, S N ; Church, T S. / Effect of exercise training modality on C-reactive protein in type-2 diabetes. In: Medicine and Science in Sports and Exercise. 2012 ; Vol. 44, No. 6. pp. 1028.
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abstract = "PURPOSE: Type-2 diabetes is associated with increased risk of cardiovascular disease and elevated C-reactive protein levels (CRP). Aerobic exercise training has been shown to improve CRP, however there are limited data evaluating the effect of other exercise training modalities (aerobic, resistance or combination training) in individuals with type-2 diabetes. METHODS: Participants (n=204) were randomized to an aerobic exercise (aerobic), resistance exercise (resistance) or a combination of both (combination) for nine months. CRP was evaluated at baseline and at follow-up. RESULTS: Baseline CRP was correlated with fat mass, waist circumference, BMI, and VO2peak (p < 0.05). CRP was not reduced following aerobic (0.16 mg.L -1, 95{\%} CI: -1.0, 1.3), resistance (-0.03 mg.L -1, 95{\%} CI: -1.1, 1.0) or combination (-0.49 mg.L -1, 95{\%} CI: -1.5 to 0.6) training compared to control (0.35 mg.L -1, 95{\%} CI: -1.0, 1.7). Change in fasting glucose (r=0.20, p=0.009), glycated hemoglobin (HbA1C) (r=0.21 p=0.005), and fat mass (r=0.19, p=0.016) were associated with reductions in CRP, but not change in fitness or weight (p > 0.05). There were significant trends observed for CRP among tertiles of change in HbA1C (p=0.009) and body fat (p=0.040). CONCLUSION: Aerobic, resistance or a combination of both did not reduce CRP levels in individuals with type-2 diabetes. However, exercise related improvements in HbA1C, fasting glucose, and fat mass were associated with reductions in CRP.",
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AB - PURPOSE: Type-2 diabetes is associated with increased risk of cardiovascular disease and elevated C-reactive protein levels (CRP). Aerobic exercise training has been shown to improve CRP, however there are limited data evaluating the effect of other exercise training modalities (aerobic, resistance or combination training) in individuals with type-2 diabetes. METHODS: Participants (n=204) were randomized to an aerobic exercise (aerobic), resistance exercise (resistance) or a combination of both (combination) for nine months. CRP was evaluated at baseline and at follow-up. RESULTS: Baseline CRP was correlated with fat mass, waist circumference, BMI, and VO2peak (p < 0.05). CRP was not reduced following aerobic (0.16 mg.L -1, 95% CI: -1.0, 1.3), resistance (-0.03 mg.L -1, 95% CI: -1.1, 1.0) or combination (-0.49 mg.L -1, 95% CI: -1.5 to 0.6) training compared to control (0.35 mg.L -1, 95% CI: -1.0, 1.7). Change in fasting glucose (r=0.20, p=0.009), glycated hemoglobin (HbA1C) (r=0.21 p=0.005), and fat mass (r=0.19, p=0.016) were associated with reductions in CRP, but not change in fitness or weight (p > 0.05). There were significant trends observed for CRP among tertiles of change in HbA1C (p=0.009) and body fat (p=0.040). CONCLUSION: Aerobic, resistance or a combination of both did not reduce CRP levels in individuals with type-2 diabetes. However, exercise related improvements in HbA1C, fasting glucose, and fat mass were associated with reductions in CRP.

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