RESUMO
The potential benefit of aerobic exercise upon cardiovascular disease (CVD) through an increasing high-density lipoproteins (HDLs) is acknowledged. However, its effects on low-density lipoproteins (LDLs) and their subpopulations, are unknown in Thailand. Twenty sedentary Thai women undertook a 12-week exercise training program (60% heart rate reserve) comprising 25-minute cycling followed by 10-minute warm-up/cool-down 3 times a week with a group of 20 matched sedentary subjects as control. Triacylglycerols (TGs) and cholesterol (C) of plasma lipoproteins including triacylglycerol-rich lipoproteins (TRLs), large, buoyant LDL (lb-LDL), small, dense LDL (sd-LDL) and HDLs were analyzed while serum fatty acid profiles were also assessed. It was found that plasma TGs, TRL-TGs, sd-LDL-C and sd-LDL-C/lb-LDL-C (S/L) ratio decreased significantly after 12-weeks of exercise to -9%, -8%, -17% and -19% respectively from baseline (p < 0.05). Serum fatty acid profiles remained unchanged. No alteration of any parameters was found in the control group without exercise. These findings suggest that moderate exercise training, even without a change of HDLs, impedes the shift of lb-LDL to more atherogenic sd-LDL, thus possibly preventing cardiovascular disease in healthy, sedentary Thai women.
Assuntos
Doenças Cardiovasculares/sangue , Exercício Físico/fisiologia , Ácidos Graxos/sangue , Lipoproteínas LDL/sangue , Adulto , Análise de Variância , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Colesterol/sangue , Feminino , Humanos , Lipoproteínas HDL/sangue , Pessoa de Meia-Idade , Consumo de Oxigênio , Resistência Física/fisiologia , Aptidão Física/fisiologia , Fatores de Risco , Tailândia , Triglicerídeos/sangueRESUMO
BACKGROUND: A study of postural stability was undertaken to identify the effects of age and gender as a preliminary study in one Thai community dwelling adults. It will be useful to prevent falls in the future. METHOD: The authors measured the postural stability in 120 males and females aged 30-40, 60-70 years using a Balance Master 8.0, Neurocom, OR to perform the modified Clinical Test for the Sensory Integration of Balance (mCTSIB) and the Unilateral Test protocols. RESULTS: The authors found that the females aged 60-70 were more stable than the males at the same age. CONCLUSION: Age and gender were significant variables that influence postural stability and static balance.
