The effects of eight-week walking programs of two different intensities on serum lipids and circulating markers of collagen remodelling in humans

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dc.contributor.authorBuyukyazi G.
dc.date.accessioned2024-07-22T08:22:24Z
dc.date.available2024-07-22T08:22:24Z
dc.date.issued2008
dc.description.abstractAim: This study examined the effects of eight weeks of walking programs on serum lipids, circulation matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1). Methods: Thirty-seven premenopausal women (30-55 years) completed eight weeks of walking programs either at moderate (∼5.25 ± 0.28 km/h; ∼53% maximum heart rate reserve (HRRmax) or high-intensity (∼7.33 ± 0.24 km/h; ∼73% HRRmax). Non-walking, sedentary women served as controls. Estimated VO2max was assessed with a 2 km walking test; body composition was measured using body composition analyzer; lipid, MMP-9, and TIMP-1 concentrations were measured in serum. Results: After eight weeks, estimated VO2max improved in high-intensity walking group (HIWG; p < 0.01) and in moderate-intensity walking group (MIWG; p < 0.05); BMI, and percent body fat decreased (p < 0.05) in both exercise groups. Only HIW caused significant reductions in total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-C), and MMP-9 levels (p < 0.05); we found no significant changes in high-density lipoprotein-cholesterol and triglyceride levels in any of the groups. Exercise did not cause any significant changes in TIMP-1 levels apart from a nearly significant reduction in HIWG (p = 0.084). Conclusion: Walking programs with different intensity bring about favorable changes; but significant improvements for protective effects against cardiovascular diseases may be attained only with high-intensity walking programs due to the reduction in TC, LDL-C and MMP-9 levels. © 2008 Elsevier Masson SAS. All rights reserved.
dc.identifier.DOI-ID10.1016/j.scispo.2007.12.014
dc.identifier.issn07651597
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/19069
dc.language.isoEnglish
dc.subjectcollagen
dc.subjectgelatinase B
dc.subjectlow density lipoprotein cholesterol
dc.subjecttissue inhibitor of metalloproteinase 1
dc.subjecttriacylglycerol
dc.subjectadult
dc.subjectarticle
dc.subjectbody composition
dc.subjectbody fat
dc.subjectbody mass
dc.subjectcholesterol blood level
dc.subjectcontrolled study
dc.subjectexercise
dc.subjectfemale
dc.subjecthuman
dc.subjecthuman experiment
dc.subjectlipid blood level
dc.subjectmetabolic parameters
dc.subjectpriority journal
dc.subjecttraining
dc.subjectwalking
dc.titleThe effects of eight-week walking programs of two different intensities on serum lipids and circulating markers of collagen remodelling in humans
dc.typeArticle

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