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Cardiorespiratory fitness modifies the association between dietary fat intake and plasma fatty acids.
Eur J Clin Nutr. 2003 Jul; 57(7):810-5.EJ

Abstract

OBJECTIVES

To investigate the relation between (1) cardiorespiratory fitness and plasma saturated, monounsaturated and polyunsaturated fatty acids and (2) the interactions between cardiorespiratory fitness, dietary fat intake and plasma fatty acid composition.

DESIGN

Cross-sectional analysis.

SETTING AND SUBJECTS

The subjects were randomly selected, 127 middle-aged Finnish men participating in the DNASCO exercise intervention study.

INTERVENTIONS

Cardiorespiratory fitness was determined spiroergometrically, dietary intake of macro- and micronutrients by 4-day food records and plasma fatty acids by gas chromatography. The subjects were divided into tertiles of aerobic fitness.

RESULTS

Differences between fitness tertiles were not observed for dietary intake of total fat, and saturated, monounsaturated or polyunsaturated fatty acids (percent of total energy). In contrast, plasma saturated fatty acids were significantly lower (P <0.01) and polyunsaturated fatty acids significantly higher (P <0.05) in the highest fitness tertile compared to the lowest tertile. Dietary saturated fat intake was positively associated with plasma saturated fatty acids (r=0.342; P <0.05) and inversely with plasma polyunsaturated fatty acids (r=-0.453; P <0.01) only in the lowest fitness tertile. In addition, a positive correlation between body mass index and plasma saturated fatty acids (r=0.516; P <0.01) as well as a negative correlation between body mass index and plasma polyunsaturated fatty acids (r=-0.516; P <0.01) was observed in the lowest tertile solely.

CONCLUSION

Different levels in cardiorespiratory fitness are associated with different levels in plasma saturated and polyunsaturated fatty acids and lead to modifications in the association between dietary and plasma fatty acids. These findings can perhaps be explained by a reduced hepatic fatty acid and lipoprotein synthesis as well as by an enhanced muscular lipid utilization, which are commonly seen in those who are physically active and who exhibit a higher level of fitness.

Authors+Show Affiliations

Department of Prevention, Rehabilitation and Sports Medicine, Center for Internal Medicine, University Hospital, Hugstetter Strasse 55, D-79106 Freiburg im Breisgau, Germany. Dani@msml.ukl.uni-freiburg.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12821879

Citation

König, D, et al. "Cardiorespiratory Fitness Modifies the Association Between Dietary Fat Intake and Plasma Fatty Acids." European Journal of Clinical Nutrition, vol. 57, no. 7, 2003, pp. 810-5.
König D, Väisänen SB, Bouchard C, et al. Cardiorespiratory fitness modifies the association between dietary fat intake and plasma fatty acids. Eur J Clin Nutr. 2003;57(7):810-5.
König, D., Väisänen, S. B., Bouchard, C., Halle, M., Lakka, T. A., Baumstark, M. W., Alen, M., Berg, A., & Rauramaa, R. (2003). Cardiorespiratory fitness modifies the association between dietary fat intake and plasma fatty acids. European Journal of Clinical Nutrition, 57(7), 810-5.
König D, et al. Cardiorespiratory Fitness Modifies the Association Between Dietary Fat Intake and Plasma Fatty Acids. Eur J Clin Nutr. 2003;57(7):810-5. PubMed PMID: 12821879.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cardiorespiratory fitness modifies the association between dietary fat intake and plasma fatty acids. AU - König,D, AU - Väisänen,S B, AU - Bouchard,C, AU - Halle,M, AU - Lakka,T A, AU - Baumstark,M W, AU - Alen,M, AU - Berg,A, AU - Rauramaa,R, PY - 2003/6/25/pubmed PY - 2003/12/12/medline PY - 2003/6/25/entrez SP - 810 EP - 5 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 57 IS - 7 N2 - OBJECTIVES: To investigate the relation between (1) cardiorespiratory fitness and plasma saturated, monounsaturated and polyunsaturated fatty acids and (2) the interactions between cardiorespiratory fitness, dietary fat intake and plasma fatty acid composition. DESIGN: Cross-sectional analysis. SETTING AND SUBJECTS: The subjects were randomly selected, 127 middle-aged Finnish men participating in the DNASCO exercise intervention study. INTERVENTIONS: Cardiorespiratory fitness was determined spiroergometrically, dietary intake of macro- and micronutrients by 4-day food records and plasma fatty acids by gas chromatography. The subjects were divided into tertiles of aerobic fitness. RESULTS: Differences between fitness tertiles were not observed for dietary intake of total fat, and saturated, monounsaturated or polyunsaturated fatty acids (percent of total energy). In contrast, plasma saturated fatty acids were significantly lower (P <0.01) and polyunsaturated fatty acids significantly higher (P <0.05) in the highest fitness tertile compared to the lowest tertile. Dietary saturated fat intake was positively associated with plasma saturated fatty acids (r=0.342; P <0.05) and inversely with plasma polyunsaturated fatty acids (r=-0.453; P <0.01) only in the lowest fitness tertile. In addition, a positive correlation between body mass index and plasma saturated fatty acids (r=0.516; P <0.01) as well as a negative correlation between body mass index and plasma polyunsaturated fatty acids (r=-0.516; P <0.01) was observed in the lowest tertile solely. CONCLUSION: Different levels in cardiorespiratory fitness are associated with different levels in plasma saturated and polyunsaturated fatty acids and lead to modifications in the association between dietary and plasma fatty acids. These findings can perhaps be explained by a reduced hepatic fatty acid and lipoprotein synthesis as well as by an enhanced muscular lipid utilization, which are commonly seen in those who are physically active and who exhibit a higher level of fitness. SN - 0954-3007 UR - https://www.unboundmedicine.com/medline/citation/12821879/Cardiorespiratory_fitness_modifies_the_association_between_dietary_fat_intake_and_plasma_fatty_acids_ L2 - http://dx.doi.org/10.1038/sj.ejcn.1601613 DB - PRIME DP - Unbound Medicine ER -