Combined Effects of Six Weeks Oat Bran Consumption and Brisk Walking Exercise on Blood Lipid Profiles in Hypercholesterolemia Women Aged 40 to 50 Years

Abstract

CitationOoi FK, Lilyana NAL. Combined effects of six weeks oat bran consumption and brisk walking exercise on blood lipid profiles in hypercholester- The aim of this study was to investigate the additional beneficial effects of combined oat bran consumption and brisk walking exercise compared to oat bran consumption alone and sedentary without oat bran consumption on body weight, body composition and blood lipid profiles among hypercholesterolemia women with age ranged from 40 to 50 years old. Methods: Thirty-three hypercholesterolemia women were randomly assigned into 3 groups: sedentary without oat bran consumption control (C), oat Bran consumption alone (Ob) and combined oat bran consumption and brisk walking exercise (ObEx) groups. Pre-and post-tests were carried out to measure participant's body anthropometry, body composition and blood lipid profiles, i.e. serum total cholesterol (TC), triglycerides (TG), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C). During 6 weeks of study period, participants in Ob and ObEx groups consumed 18 g of oat bran daily. Participants in ObEx executed brisk walking exercise at intensity of 55%-70% of the participants' heart rate maximum for 30 minutes per session, 3 sessions per week for 6 weeks. Participants in ObEx group consumed oat bran 1 hour prior to brisk walking exercise on the exercise days. Results: After 6 weeks of study period, body weight decreased significantly in both Ob (p=0.013) and ObEx (p=0.02) groups, however there were no significant changes in percentage of body fat and fat free mass in all the groups. There were significant decrease in serum total cholesterol (TC) (p=0.02) and low density lipoprotein cholesterol (LDL-C) (p=0.019) concentrations in ObEx group. Conclusion: Six-weeks of oat bran consumption with 18 g of oat bran per day combined with brisk walking exercise for 30 minutes per session, 3 sessions per week could significantly reduce body weight, serum total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) concentrations. Therefore, this combination can be proposed as guidelines in nutritional and exercise promotion programme to improve lipid profiles in 40 to 50 years old hypercholesterolemia women.

Latihan Berjalan Kaki terhadap Perbaikan Profil Lipid pada Wanita Dewasa Kelebihan Berat Badan

“…Hasil ini sejalan dengan penelitian terhadap wanita overweight yang di beri intervensi diet dan aerobic exercise menunjukkan tidak signifikan pada perubahan serum HDL (p>0.05) 26 . Efek latihan pada profil lipid sangat tergantung pada jenis, frekuensi dan durasi latihan yang dilakukan Studi eksperimen lainnya yang menggabungkan antara latihan berjalan cepat selama 30 menit dan konsumsi 18 g oat menunjukkan perubahan pada serum LDL-C sebanyak 7.6% dan TC sebanyak 6.1% dibanding kelompok yang mengkonsumsi oat saja dan kontrol sedangkan serum TG dan HDL-C tidak berpengaruh secara signifikan untuk semua kelompok 13 , hal ini karena respons komponen profil lipid spesifik terhadap olahraga juga berbeda, HDL dan TG jauh lebih sensitif terhadap perubahan yang terkait dengan olahraga dari pada LDL dan kolesterol total (TC) karena hanya 25% dari studi telah menunjukkan bahwa olahraga akan memicu beberapa perubahan dalam kadar LDL dan TC 27 ' 28 , hasil ini berbanding terbalik dengan penelitian wanita overweight dan obese usia 21-55 tahun dengan intervensi berjalan cepat dengan heart rate 60%-70% selama 3 kali per minggu signifikan meningkatkan serum HDL 29 . Serum HDL merupakan komponen profil lipid yang akan meningkat secara signifikan berdasarkan durasi latihan mingguan yakni 150 menit per minggu atau setara dengan 30 menit dengan frekuensi 5 kali per minggu dengan intensitas latihan (VO2max) pada 65% dari heart rate maksimal pada individu yang tidak terlatih.…”