Browsing by Subject "CARDIORESPIRATORY FITNESS"

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    Do Walking Programs Affect C-Reactive Protein, Osteoprotegerin and Soluble Receptor Activator of Nuclear Factor-Kappaβ Ligand?
    (WALTER DE GRUYTER GMBH) Esen, H; Büyükyazi, G; Ulman, C; Taneli, F; Ari, Z; Gözlükaya, F; Tikiz, H
    Aim: To examine the effects of 10-week walking programs on maximal oxygen consumption, body composition, serum lipids, highly-sensitive C-reactive protein, osteoprotegerin and soluble receptor activator of nuclear factor-kappa beta ligand. Method: Twenty-seven middle-aged men (40-60years) walked for ten weeks, five days per week, 40-52min per day at either moderate or high intensity (similar to 5.95 +/- 0.26km/h and similar to 7.64 +/- 0.36km/h; 50-55% and 70-75% maximum heart rate reserve, respectively). Non-walking, sedentary men served as controls (n=13). Estimated maximal oxygen consumption, body composition, lipid profile, highly-sensitive C-reactive protein, osteoprotegerin and soluble receptor activator of nuclear factor-kappa beta ligand were determined before and after the study. Results: After 10 weeks, estimated maximal oxygen consumption improved in both exercise groups (p<.05), favoring high-intensity group (p<.05). Body weight, percent body fat, and body mass index reduced significantly in both exercise groups (p<.05). Walking programs did not cause any significant changes in blood lipids, highly-sensitive C-reactive protein, and osteoprotegerin levels; however, soluble receptor activator of nuclear factor-kappa beta ligand levels were found to decrease in high-intensity group (p<.05) and the change observed in both exercise groups was different from the change in control group (p<.05). Conclusion: For protective effects against cardiac risk factors and arterial calcification, high-intensity walking programs are advisable due to the greater improvements in soluble receptor activator of nuclear factor-kappa beta ligand and estimated maximal oxygen consumption.
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    The effects of different intensity walking programs on serum blood lipids, high-sensitive C-reactive protein, and lipoprotein-associated phospholipase A2 in premenopausal women
    (ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER) Buyukyazi, G; Ulman, C; Taneli, F; Esen, H; Gozlukaya, F; Ozcan, I; Tikiz, H
    Aim. - This study examined the effects of 12 weeks of walking programs on serum lipids, high-sensitive C-reactive protein, and lipoprotein-associated phospholipase A2. Methods. - Twenty-six pre-menopausal women (30-49 years) completed 12 weeks of walking programs either at moderate or high intensity (50-55%, 70-75% maximum heart rate reserve, respectively). Estimated maximal oxygen consumption was assessed with a 2-km walking test; body composition, blood lipids, high-sensitive C-reactive protein, and lipoprotein-associated phospholipase A2 were measured before and after the study. Results. - Maximal oxygen consumption increased, favoring high-intensity group; body weights, percent body fat (p<0.01) and body mass index (p<0.05) decreased in both exercise groups. There were no significant changes in the measured blood lipids in any of the groups, except for a significant reduction in low-density lipoprotein-cholesterol in high-intensity group (p<0.05). High-sensitive C-reactive protein and lipoprotein-associated phospholipase A2 levels reduced significantly in high-intensity (p<0.01) and moderate-intensity (p<0.05) groups, which were also different from the changes in the control group. Conclusion. - Walking programs with different intensity result in favorable changes; however, for protective effects against cardiovascular diseases, high-intensity walking may be advised due to greater reductions in low-density lipoprotein-cholesterol, and high-sensitive C-reactive protein and lipoprotein-associated phospholipase A2. (C) 2010 Elsevier Masson SAS. All rights reserved.