scholarly journals Risk Factors of Adolescent Obesity in Taiwan and Its Association with Physical activity, Blood Pressure and Waist Circumference

2010 ◽  
Vol 1 (4) ◽  
Author(s):  
Yi-Chun Chou ◽  
Jen-Sheng Pei
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Waist Circumference ◽  
Adolescent Obesity

Influence of time spent on TV viewing and vigorous intensity physical activity on cardiovascular biomarkers. The Inter 99 study

2007 ◽  
Vol 14 (5) ◽  
pp. 660-665 ◽  
Author(s):  
Mette Aadahl ◽  
Michael Kjær ◽  
Torben Jørgensen
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Body Mass Index ◽  
Waist Circumference ◽  
Density Lipoprotein ◽  
Tv Viewing ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

Introduction Sedentary behaviour, especially TV viewing, has been identified as a possible risk factor for cardiovascular disease, whereas physical activity seems to protect against major cardiovascular risk factors: obesity, dyslipidemia and hypertension. The aim of this study was to explore the association between both time spent on TV viewing and vigorous intensity physical activity in relation to body mass index, waist circumference, waist/hip ratio, serum lipids and blood pressure. Methods A total of 1693 men and women, 33-64 years of age, from the 3-year follow-up of a population-based intervention study, The Inter 99 study, were included in this cross-sectional design. Information on TV viewing, physical activity and other lifestyle habits was obtained by self-report questionnaire. Associations between TV viewing/physical activity and biological cardiovascular risk factors were explored by multiple linear regression analyses. Results Data from 835 (51%) men and 805 (49%) women were included. Mean age was 50.8 years (33.0-64.6). Men had a higher overall physical activity score than women ( P < 0.0001). TV viewing was significantly, positively associated with waist/hip ratio ( P = 0.005), body mass index ( P = 0.03), triglycerides ( P = 0.005), low density lipoprotein cholesterol ( P = 0.03), total cholesterol ( P = 0.01), systolic ( P = 0.05) and diastolic blood pressure ( P = 0.03), but not with waist circumference and high density lipoprotein cholesterol (HDL). Engaging in vigorous intensity physical activity was associated with higher HDL ( P = 0.0006) and lower waist circumference ( P < 0.0001). Conclusion TV viewing and physical activity should be regarded as separate types of behaviour that relate to different cardiovascular disease risk factors. Eur J Cardiovasc Prev Rehabil 14:660-665 © 2007 The European Society of Cardiology

scholarly journals Metabolic Syndrome Risk Among Adults Living with Sickle Cell Disease

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 3405-3405 ◽  
Author(s):  
Shawn M Bediako ◽  
Julie Nelson ◽  
Cody Cichowitz ◽  
Tiffany Yu ◽  
C. Patrick Carroll ◽  
...  
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Metabolic Syndrome ◽  
Waist Circumference ◽  
Sickle Cell Disease ◽  
Sickle Cell ◽  
Fasting Glucose ◽  
Fold Increase ◽  
Cell Disease

Abstract Background: The life span of individuals living with sickle cell disease (SCD) has increased considerably over the past three decades. Yet, as this group ages, new concerns emerge about their overall health profile - particularly with regard to cardiovascular disease (CVD), the primary cause of mortality in the United States. Metabolic syndrome (MetS) is a cluster of conditions that are associated with a 2-fold increase in CVD outcomes and a 1.5-fold increase in all-cause mortality. Little is known, however, about the prevalence of MetS risk factors among adults with SCD. As part of exploring the CVD profile of this population, we report findings from a pilot study that sought to evaluate MetS (typically defined as the presence of 3 or more risk factors). Methods: 49 adults (ages 21-66 years; 72% female) completed demographic and health behavior surveys, health-related family and personal histories, anthropometric measurements, the Block 2005 nutritional assessment, and a comprehensive blood panel. In terms of SCD genotype, 63% of participants were diagnosed with homozygous sickle cell anemia and 37% were diagnosed with hemoglobin SC disease. Descriptive and inferential statistics were used to summarize and compare MetS components stratified in separate analyses by genotype and sex. Results: The most prevalent MetS risk factors observed in our study - large waist circumference and reduced HDL levels - affected 45% and 69% of the sample, respectively. Overall, 16% of participants met traditional criteria for MetS. Table 1 summarizes mean values and shows the gender-adjusted risk for MetS. Although 78% of the sample self-reported moderate to high physical activity, nearly half of participants were overweight and had dietary saturated fat intake levels that exceeded both the national average and US Dietary Guidelines (<10%). Participants with the SC phenotype were older, consumed more calories, and had higher BMI, waist circumference, and BP values compared to those with the SS phenotype. Overall, males had worse MetS risk profiles compared to women, but no statistically significant sex differences were observed with regard to components of MetS. Conclusion: We report prevalence of MetS components, a surrogate of CVD risk, in a sample of adults living with SCD. Despite high levels of self-reported physical activity, both increased waist circumference and reduced HDL levels were notably high in our sample. These findings correspond with recent studies that indicate an upward trend in obesity and BMI among young adults with SCD. They also suggest a need to prioritize weight management, aerobic exercise, and resistance training strategies that could decrease MetS risk, but are rarely considered for this population. Table 1. Metabolic syndrome risk among adults living with SCD (N=49) Mean Value (SD) Proportion at Risk* Male (n = 14) Female (n = 35) Male (n = 14) Female (n = 35) Age (years) 41.6 (10.76) 39.3 (12.86) - - Waist circumference (cm) 96.53 (21.99) 90.75 (14.05) 42.9% 45.7% Triglycerides (mg/dL) 114.21 (57.22) 83.36 (36.21) 21.4% 3.0% HDL (mg/dL) 35.07 (9.51) 51.30 (20.31) 78.6% 69.7% Systolic BP 115.79 (15.00) 108.59 (13.15) 21.4% 8.6% Diastolic BP 69.11 (8.99) 62.17 (6.18) 0.0% 0.0% Fasting Glucose (mg/dL) 86.50 (8.07) 80.91 (13.73) 0.0% 9.0% Metabolic Syndrome - - 28.6% 8.6% *"Risk" is defined as: waist circumference > 89cm (Females) and > 102cm (Males); triglyceride levels > 150mg/dL; HDL levels < 50mg/dL (Females) and < 40mg/dL (Males); systolic blood pressure > 130; diastolic blood pressure > 85; fasting glucose levels > 100mg/dL. Disclosures No relevant conflicts of interest to declare.

scholarly journals THE RELATIONSHIP BETWEEN DAILY STEPS AND CARDIOVASCULAR RISK FACTORS AMONG TEACHERS IN CENTRAL REGION, MALAYSIA

2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Shafiqah Mohd Radhi ◽  
Nur Zakiah Mohd Saat ◽  
Nor Farah Mohamad Fauzi ◽  
Siti Aishah Hanawi
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Cardiovascular Risk ◽  
Waist Circumference ◽  
Cardiovascular Risk Factors ◽  
Diastolic Blood Pressure ◽  
Blood Sugar ◽  
School Teachers ◽  
Steps Per Day

Physical activity is an important component of cardiovascular health. The fact that physical activity is also associated with a substantial number of cognitive and academic benefits, therefore schools teachers can be an important role model in promoting a physically-active lifestyle in school children. The aim of this study is to examine the levels of physical activity (PA) and its association with cardiovascular risk factors in a sample of school teachers. Forty-nine (n=49) teachers from primary and secondary schools around Klang Valley urban areas were recruited. The PA level was determined using pedometer, worn for three consecutive days. Anthropometric measurements and blood samples were collected to determine cardiovascular risk factors. Findings showed that the school teachers recorded an overall mean (± SEM) of 7707 ± 490 steps/day, which is below the recommended target of 10 000 steps per day. According to pedometer-determined physical activity indices proposed by Tudor-Locke and Bassett (2004), 20.83% of the sample were classified as ‘sedentary’ (<5000 steps/day), 35.40% were ‘low active’ (5000 – 7499 steps/day) and only 18.70% achieved more than 10 000 steps/day. According to Asian BMI cut-off points, 43% of the teachers were categorized as overweight and obese (>23 kg/m2). The mean values for waist circumference, fasting blood sugar, and cholesterol level, systolic and diastolic blood pressure were 83.96 ± 1.90 cm, 5.41 ± 0.26 mmol/l, 4.64±0.26 mmol/l, 118.90 ± 1.72 mmHg and 72.40±1.58 mmHg respectively. Fisher Exact Test shown that there were significant association between daily step and age category. Daily steps weakly negative correlated with systolic blood pressure (r = -0.024, p > 0.05) as well as blood sugar levels (r = -0.061, p> 0.05), diastolic blood pressure (r = -0.079, p> 0.05), body mass index (r = -0.271, p> 0.05), waist circumference (r = -0.196, p> 0.05), as well as blood cholesterol levels (r = -0.037, p> 0.05). In conclusion, there were weak negative correlations between steps per day and cardiovascular risk factors. Generally, the level of physical activity in the sample of teachers needs to be improved. Interventions aimed at promoting PA among school teachers may be warranted in the future.

scholarly journals Cardiorespiratory Fitness as a Correlate of Cardiovascular, Anthropometric, and Physical Risk Factors: Using the Ruffier Test as a Template

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Khalid A. Alahmari ◽  
Kanagaraj Rengaramanujam ◽  
Ravi Shankar Reddy ◽  
Paul Silvian Samuel ◽  
Venkata Nagaraj Kakaraparthi ◽  
...  
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Body Weight ◽  
Waist Circumference ◽  
Lower Limb ◽  
Clinical Practices ◽  
Thigh Circumference ◽  
Physical Risk ◽  
Physical Risk Factors

Background. Assessment of cardiorespiratory fitness (CRF) is a standard procedure in routine clinical practices. Early identification of risk factors through screening is vital in the fight against chronic diseases. Evaluation of CRF can impose cost implications in the clinical setting; thus, a simple and easy-to-use test is to be advocated. The Ruffier test is a simple test that can assess CRF, and it is necessary to find whether the test reflects the effects of compounding factors in CRF. Objective. This study aims to determine the association between CRF (estimated VO2max) with cardiovascular, anthropometric, and physical risk factors using the Ruffier test. Methods. A cross-sectional study with a sample of 52 male participants was conducted. Before the Ruffier test, each participant’s body weight, height, waist circumference, skinfold thickness, thigh length, lower-limb length, thigh circumference, physical activity, blood pressure, smoking, diabetes, and pulmonary functions were recorded, and these factors correlated with CRF. Results. There was a significant inverse relationship found between the estimated VO2max and age, height, body weight, body mass index, waist circumference, a sum of skinfold, fat percentage, thigh length, lower-limb length, thigh circumference, smoking, blood pressure, heart rates, and diabetes p<0.05. A significant positive correlation was found between the estimated VO2max with physical activity and respiratory functions p<0.05. In the multivariable model, body weight and resting heart rate were significantly inversely associated with the estimated VO2maxp<0.05. Conclusion. Using the Ruffier test, various risk factors of CRF are correlated with the estimated VO2max. This test reflects the effects of different compounding factors on CRF; therefore, it can be used in routine clinical practices to identify the risk factors early.

Blood pressure risk factors in healthy postmenopausal women: physical activity and hormone replacement

1997 ◽  
Vol 82 (2) ◽  
pp. 652-660 ◽  
Author(s):  
Edith T. Stevenson ◽  
Kevin P. Davy ◽  
Pamela P. Jones ◽  
Christopher A. Desouza ◽  
and Douglas R. Seals ◽  
...  
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Waist Circumference ◽  
Postmenopausal Women ◽  
Hormone Replacement ◽  
Stepwise Multiple Regression ◽  
Cvd Risk Factors ◽  
Cvd Risk ◽  
Physically Active

Stevenson, Edith T., Kevin P. Davy, Pamela P. Jones, Christopher A. Desouza, and Douglas R. Seals. Blood pressure risk factors in healthy postmenopausal women: physical activity and hormone replacement. J. Appl. Physiol. 82(2): 652–660, 1997.—The prevalence of cardiovascular disease (CVD) increases with advancing age in women, particularly after menopause. CVD risk is lower in physically active women relative to their sedentary peers, but the responsible mechanisms are not well understood. The aims of this study were to test the hypotheses that 1) physically active postmenopausal women demonstrate more favorable blood pressure (BP)-related risk factors for CVD than do sedentary healthy women and 2) women on hormone replacement therapy (HRT) also have more favorable levels of these CVD risk factors. BP-related CVD risk factors were measured in physically active women ( n = 18; age 55 ± 1 yr; n = 8 on HRT) and in healthy less-active controls ( n = 34; age 59 ± 1 yr; n = 17 on HRT). Maximal oxygen consumption was higher in the active group, whereas waist-to-hip ratio and waist circumference were lower (all P < 0.005). The active women demonstrated marginally lower (5–8 mmHg; P ≤ 0.10) levels of casual, 24-h, and daytime systolic BP (SBP). They also tended to have lower ( P = 0.11) daytime SBP loads (percentage of BP recordings >140/90 mmHg) and lower daytime and nighttime BP variabilities ( P = 0.04) and a reduced ( P < 0.007) SBP response to submaximal exercise. Women on HRT tended to have lower (3–4 mmHg; P = 0.07) levels of 24-h and nighttime diastolic BP (DBP) relative to the nonusers and smaller ( P < 0.04) daytime and 24-h DBP loads. Stepwise multiple regression indicated that waist circumference was the primary predictor of most of the SBP-related CVD risk factors while HRT use was the best predictor for DBP loads. These findings indicate that, in general, physically active postmenopausal women demonstrate more favorable SBP-related CVD risk factors relative to their less-active healthy peers, which may be mediated, in part, by their lower levels of abdominal adiposity. In addition, HRT use tends to be associated with lower levels of DBP-related CVD risk factors.

scholarly journals Associations between physical activity, sedentary time and cardiovascular risk factors among Dutch children

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256448 ◽  
Author(s):  
Gabrielle ten Velde ◽  
Guy Plasqui ◽  
Maartje Willeboordse ◽  
Bjorn Winkens ◽  
Anita Vreugdenhil
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Cardiovascular Risk ◽  
Waist Circumference ◽  
Cardiovascular Risk Factors ◽  
Sedentary Time ◽  
Primary School Children ◽  
Z Score ◽  
Standardized Measures

Introduction Physical activity (PA) plays an important role in the prevention of cardiovascular diseases, especially in children. Previous studies which investigated the role of PA and sedentary time (ST) in cardiovascular disease used different measurements and found inconsistent results. The current study used recommended standardized measures and provides an overview of PA and ST among Dutch primary school children and their associations with cardiovascular risk factors. Methods 503 children (55% girls, mean age (± SD) 10 ± 1y) were included. PA (total PA, lightPA and moderate to vigorous PA (MVPA)) and ST were measured with the Actigraph GT3X accelerometer. PA in different domains was measured with the BAECKE questionnaire. Cardiovascular risk factors included BMI z-score, waist circumference, blood pressure (z-score) and estimated cardiorespiratory fitness (CRF) as measured with the 20 meter shuttle run test. Results Children spent 57 ± 20 min/day (8%) on MVPA and 42% of the children reached the MVPA guideline of 60 min/day. Total PA and MVPA (h/day) were negatively associated with BMI z-score (B = -0.452, p = 0.011) and waist circumference (B = -3.553, p = 0.011) and positively associated with CRF (B = 2.527, p = <0.001). ST was positively associated with BMI z-score (B = 0.108, p = 0.048) and waist circumference (B = 0.920, p = 0.033). No significant associations were found between total PA or PA intensities and blood pressure. Conclusion This study used standardized measures of PA and therefore created an accurate overview of PA, ST and their associations with cardiovascular risk factors. PA and ST were associated with BMI z-score, waist circumference and CRF. The findings emphasize the importance of promoting MVPA in children, but also highlight the potential benefits of reducing ST to improve cardiovascular risk factors. Trial registration ClinicalTrials.gov NCT03440580.

Abstract P355: Variable associations of dehydroepiandrosterone with cardiovascular risk factors in the Boston Puerto Rican Health Study

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Monik C Jimenez ◽  
Kathrine Tucker ◽  
Fatima Rodriguez ◽  
James B Meigs ◽  
Lenny Lopez
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Waist Circumference ◽  
Linear Regression ◽  
Puerto Rican ◽  
Health Study ◽  
Cvd Risk Factors ◽  
Cvd Risk ◽  
History Of

Introduction: Low blood levels of dehydroepiandrosterone sulfate (DHEAS) have been shown to have strong positive associations with diabetes, cardiovascular disease (CVD) mortality and stroke. However, the underlying pathways remain unclear, given limited data to systematically examine associations of DHEAS with CVD risk. In exploratory analyses we tested the association between CVD risk factors and DHEAS levels in a large population of Latinos. Methods: Among 1,450 participants in the Boston Puerto Rican Health Study between the ages of 45-75 years at baseline, socio-demographic, behavior, medical history, anthropometric and blood pressure data were collected at in-home interviews conducted by trained staff. A certified phlebotomist collected fasting blood samples. All samples were assayed for DHEAS, lipids, and C-reactive protein (CRP), HbA1c, insulin and glucose (GL). Spearman correlations were estimated between DHEAS and continuous CVD risk factors (lipids, systolic blood pressure [SBP] and diastolic blood pressure [DBP], CRP, GL, HbA1c, insulin, body mass index [BMI], waist circumference, physical activity and alcohol consumptions). We used robust multivariable linear regression models adjusted for potential confounders and intermediates with α=0.05 to estimate the association selected CVD risk factors and DHEAS levels. CVD risk factors were identified from a set of potential candidate predictors (age, female gender, history of heart disease, diabetes status, SBP, DBP, total and high density cholesterol [TC, HDL], triglycerides [TG], GL, CRP) using stepwise linear regression with an entry criterion of α=0.20 and exit criterion of α=0.10. Results: The mean DHEAS concentration among women was 70.7 μg/dL (s.d. 53.9; median=70.7) and among men was 119 μg/dL (s.d. 87.7; median=100). In age and sex adjusted Spearman correlations, TC, low density lipoprotein cholesterol, physical activity and alcohol were positively significantly correlated with DHEAS, while BMI and waist circumference were inversely correlated. In robust multivariable linear regression adjusted for potential confounders, age (-8.3; 95%CI:-10.0,-6.5; per 5 yrs), sex (β=-32.5; 95%CI:-38.4,-26.6) and TG (β=-0.5; 95%CI:-0.7,-0.2; per 10 mg/dl) were significantly inversely associated with DHEAS concentration, while TC (β=0.9; 95%CI:0.2,1.6;per 10 mg/dL) and GL (β=0.7; 95%CI:0.2, 1.2;per 10 mg/dL) were positively associated, albeit non-statistically significant. Adjustment for history of CVD, diabetes and BMI, only marginally attenuated these associations. Conclusions: Our data provide support for a significant association between TG levels and DHEAS concentrations even after adjustment for potential confounders and intermediates, which has been previously untested. These results suggest that DHEAS may work through lipid pathways.

scholarly journals Treatment target achievement after myocardial infarction: cardiovascular risk factors, medication use and lifestyle in Norwegian women and men

2021 ◽  
Vol 20 (Supplement_1) ◽  
Author(s):  
L Hopstock ◽  
B Morseth ◽  
S Cook ◽  
AE Eggen ◽  
S Grimgsgaard ◽  
...  
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Myocardial Infarction ◽  
Blood Pressure ◽  
Cardiovascular Risk ◽  
Waist Circumference ◽  
Ldl Cholesterol ◽  
Medication Use ◽  
Lipid Lowering ◽  
Treatment Target

Abstract Funding Acknowledgements Type of funding sources: None. Background Although the use of guidelines in clinical practice is emphasised, large multi-center studies of patients with cardiovascular disease have shown secondary prevention to be suboptimal, which increase the risk of recurrent events. Purpose To examine ESC guideline treatment target achievement after myocardial infarction for cardiovascular risk factors, medication use and a broad range of lifestyle factors in women and men from a Norwegian general population. Methods In a population-based study conducted 2015-2016 (65% attendance), 637 participants 40-95 years (23% women, 70% ≥65 years) had validated myocardial infarction. Cross-sectionally, we investigated target achievement for blood pressure (&lt;140/90 mmHg, &lt;130/80 mmHg if diabetes), LDL cholesterol (&lt;1.8 mmol/L), HbA1c (&lt;7.0% if diabetes), weight (body mass index (BMI) &lt;25 kg/m2, waist circumference (women &lt;80 cm, men &lt;94 cm)), smoking (non-smoking), physical activity (self-reported &gt;sedentary, accelerometer-measured moderate-to-vigorous ≥150 min/week), diet (intake of fruits ≥200 g/day, vegetables ≥200 g/day, fish ≥200 g/week, saturated fat &lt;10E%, fiber ≥30g/day,  and alcohol (women ≤10 g/day, men ≤20 g/day)), and medication use (antihypertensives, lipid-lowering drugs, antithrombotics, antidiabetics) using regression models. Results Proportion of target achievement was for blood pressure 55.8%, LDL cholesterol 9.3%, HbA1c 42.7%, BMI 19.5%, waist circumference 15.6%, non-smoking 86.2%, self-reported physical activity 79.5%, objectively measured physical activity 9.1%, intake of fruits 66.7%, vegetables 38.4%, fish 96.8%, saturated fat 25.4%, fiber 29.5%, and alcohol 78.5%, use of antidiabetics 84.3%, lipid-lowering drugs 86.8%, antihypertensives 78.5% and antithrombotics 77.9%. In total, 0.8% achieved all cardiovascular risk factor targets (blood pressure, LDL cholesterol, BMI and waist circumference combined). Compared to men, a lower proportion of women achieved the target for waist circumference (6.9% vs 18.1%, p = 0.002). Compared to participants 65 years or older, a higher proportion of those 40-64 years achieved the target for blood pressure (71.2% vs 49.0%, p &lt; 0.001), and a lower proportion achieved the target for BMI (15.3 vs 21.4, p = 0.007). Conclusion Secondary prevention after myocardial infarction was suboptimal in both women and men. A negligible proportion achieved the treatment target for all risk factors. Improvement in follow-up care after myocardial infarction is needed.

Haematocrit: Relationships with Blood Lipids, Blood Pressure and other Cardiovascular Risk Factors

1994 ◽  
Vol 72 (01) ◽  
pp. 058-064 ◽  
Author(s):  
Goya Wannamethee ◽  
A Gerald Shaper
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Body Mass Index ◽  
Cardiovascular Risk ◽  
Cardiovascular Risk Factors ◽  
Alcohol Intake ◽  
Blood Lipids ◽  
The Other ◽  
The Relationship

SummaryThe relationship between haematocrit and cardiovascular risk factors, particularly blood pressure and blood lipids, has been examined in detail in a large prospective study of 7735 middle-aged men drawn from general practices in 24 British towns. The analyses are restricted to the 5494 men free of any evidence of ischaemic heart disease at screening.Smoking, body mass index, physical activity, alcohol intake and lung function (FEV1) were factors strongly associated with haematocrit levels independent of each other. Age showed a significant but small independent association with haematocrit. Non-manual workers had slightly higher haematocrit levels than manual workers; this difference increased considerably and became significant after adjustment for the other risk factors. Diabetics showed significantly lower levels of haematocrit than non-diabetics. In the univariate analysis, haematocrit was significantly associated with total serum protein (r = 0*18), cholesterol (r = 0.16), triglyceride (r = 0.15), diastolic blood pressure (r = 0.17) and heart rate (r = 0.14); all at p <0.0001. A weaker but significant association was seen with systolic blood pressure (r = 0.09, p <0.001). These relationships remained significant even after adjustment for age, smoking, body mass index, physical activity, alcohol intake, lung function, presence of diabetes, social class and for each of the other biological variables; the relationship with systolic blood pressure was considerably weakened. No association was seen with blood glucose and HDL-cholesterol. This study has shown significant associations between several lifestyle characteristics and the haematocrit and supports the findings of a significant relationship between the haematocrit and blood lipids and blood pressure. It emphasises the role of the haematocrit in assessing the risk of ischaemic heart disease and stroke in individuals, and the need to take haematocrit levels into account in determining the importance of other cardiovascular risk factors.

scholarly journals The role of physical activity on cardiovascular risk factors in adolescents

2010 ◽  
Vol 50 (4) ◽  
pp. 220
Author(s):  
Nadia Dwi Insani ◽  
Sukman Tulus Putra ◽  
Agus Firmansyah
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Body Mass Index ◽  
Cardiovascular Risk ◽  
Cardiovascular Risk Factors ◽  
High Activity ◽  
Blood Lipid ◽  
Waist To Hip Ratio ◽  
Activity Group

Background Cardiovascular diseases remain the leading cause of death worldwide. Atherosclerotic process increases rapidly during adolescence. Physical activity is considered important in this period to modify cardiovascular risk factors, thus preventing disease in the future.Objective To determine whether different physical activity status in adolescence can influence body mass index (BMBMI), waist-to-hip ratio, blood pressure (BP), and blood lipid profile.Methods This was a cross-sectional descriptive study, conducted from December 2009 to January 2010. Adolescents who fulfilled the study criteria were classified into high and low physical activity category. Further examination including body mass index, waist-to-hip ratio, blood pressure, and blood lipid profile were performed.Results Adolescents with high physical activity had higher, but statistically insignificant, BMBMI compared to adolescents in the P=0.493] and significantly lower waist-to-hip ratio [0.80 (range 0.73-0.9) vs.. 0.82 (range 0.7-0.9), P=0.019]. Difference in BP was not statistically significant between both groups [diastolic BP (70 (range 60-90) mmHg vs. 70 (range 60-90) mmHg, P=0.148; systolic BP 100 (range 90-130) mmHg vs. 100 (range 90-140) mmHg, P=0.228)]. Blood lipid examination in the high activity group showed significantly higher HDL cholesterol and lower triglyceride compared to the low activity group [HDL 59.8 (SD 11.8) mg/dL vs. 54.7 (SD 8.9) mg/dL; p=0.044; triglyceride: 60 (range 32-203) mmHg vs. 82 (range 37-198) mmHg, P=0.014]. Total and LDL cholesterol [total cholesterol 169.8 (SD 28.6) mmHg vs. 181.2 (SD 30.8) mmHg, P=0.107; LDL 103.6 (SD 26.8) mmHg vs. 114.1 (SD 27.3) mmHg, P=0.100] were lower in the high activity group but not statistically different in both groups.Conclusions Adolescents with high physical activity show less cardiovascular risk factors compared to those in the low physical activity group.

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