scholarly journals Pengaruh Merokok terhadap Cardiorespiratory Fitness

2021 ◽  
Vol 6 (1) ◽  
pp. 31-34
Author(s):  
Suci Amanati ◽  
Akhmad Alfajri Amin ◽  
Dwi Nur Astuti

Sistem kardiorespiratori bertanggung jawab atas pembagian oksigen dan bahan makanan bagi otot yang sedang bekerja, serta menyingkirkan gas asam arang dan zat yang tidak berguna bagi otot yang tidak sedang aktif.Daya tahan pada banyak kegiatan dibatasi oleh kapasitas sistem sirkulasi darah dan sistem respirasi dalam mengantarkan oksigen otot. Maka sangat penting untuk memberikan perhatian mendalam terhadapsistemkardiovaskular (Windiar,2014;Listyanto, 2105). Kebiasaan merokok dapat mempengaruhi         daya    tahan kardiovaskuler, karena asap rokok yang dihirup akan masuk dalamparu- paru dan menghambat kinerja jantung. Hal ini akan menyebabkan berkurangnya volume oksigen yang dihirup tubuh (Windiar, 2014; Prayoga,2013). Merokok merupakan salah satu perilaku yang berisiko menimbulkan gangguan kesehatan dan kebugaran fisik seseorang, Saat ini bahkan perilaku merokok sudah dianggap sebagai kebiasaan di kalangan anak muda dan remaja.Merokok yang merupakan penyebab dari kematian hingga 6 juta orang meninggal dalam setahun. Lebih dari 5 juta orang meninggal karena menghisap langsung rokok, sedangkan 600 ribu orang lebih meninggal karena terpapar asap rokok (WHO, 2013). Jenis penelitian yang digunakan adalah penelitian analitik, yang terdiri dari 2 kelompok mahasiswa, yaitu (perokok aktif dan bukan perokok) dengan desain studi Cross Sectional yang bertujuan untuk mengetahui hubungan merokok dengan Cardiorespiratory fitness, yang dapat dilihat lamanya menjadi perokok aktif  dan banyak nya rokok yang dihisap dalam satu hari melalui wawancara menggunakan kuesioner yang dipadukan dengan tes kebugaran pada remaja. Tes yang digunakan pada remaja adalah Harvard StepTest, dimana responden akan diminta untuk naik-turun stool (tangga kecil) dengan tinggi kurang lebih 70 cm, yang dilakukan berulang ulang selama 5, 10 dan 15 menit. Kata Kunci : Merokok, Cardiorespiratory fitness, Harvard Step Test

PLoS ONE ◽  
2015 ◽  
Vol 10 (12) ◽  
pp. e0145960 ◽  
Author(s):  
Lívia Pinheiro Carvalho ◽  
Luciana Di Thommazo-Luporini ◽  
Mylène Aubertin-Leheudre ◽  
José Carlos Bonjorno Junior ◽  
Cláudio Ricardo de Oliveira ◽  
...  

Circulation ◽  
2018 ◽  
Vol 137 (suppl_1) ◽  
Author(s):  
Eunduck Park ◽  
Devin Volding ◽  
Wendell Taylor ◽  
Wenyaw Chan ◽  
Janet Meininger

Introduction: Low cardiorespiratory fitness (fitness) and high levels of adiposity are independently associated with higher levels of blood pressure in adolescents. However, it remains uncertain whether the associations between fitness and blood pressure are due to fitness itself or results from lower levels of adiposity. Moreover, there are no studies that have determined the extent to which adiposity, including central adiposity, moderates the association between fitness and 24-hour ambulatory blood pressure (ABP). Hypotheses: 1. Higher levels of fitness will be associated with lower levels of ambulatory systolic (SBP) and diastolic (DBP) blood pressure after adjusting for adiposity and covariates. 2. With adjustments for covariates, adiposity (body mass index [BMI], waist circumference [WC]) will modify the association between fitness and 24-hour SBP and DBP. Methods: A cross-sectional study was conducted in Houston, TX with a sample of 370 adolescents aged 11-16 years. Demographically, the sample was 54% female, 37% African American, 31% Hispanic, 29% non-Hispanic white, and 3% other ethnic/racial groups. Fitness was assessed by a height-adjusted step test and estimated by heart rate recovery, defined as the difference between peak heart rate during exercise and heart rate two minutes post-exercise. Adiposity was measured using dichotomized values for percentiles of BMI (≥ 85 th ) and WC (≥ 50 th ). Ambulatory SBP and DBP (Spacelabs model 90207) were measured every 30-60 minutes over 24 hours on a school day. Mixed-effects regression analysis was used to test the hypotheses with the following covariates: activity, location, and position at the time of each ABP measurement, height, age, sex, ethnicity, sexual maturation level, and mother’s education level. Results: Hypothesis 1: Each unit increase in fitness was associated with a decrease of SBP (-0.058 mmHg, p = 0.001) and DBP (-0.043 mmHg, p < 0.0001) after adjustment for WC and covariates. Each unit increase in fitness was associated with a decrease in SBP (-0.058 mmHg, p = 0.001) and DBP (-0.045 mmHg, p < 0.0001) after adjustment for BMI and covariates. Hypothesis 2: Fitness and BMI ≥ 85 th percentile (or WC ≥ 50 th percentile) interactions were not significantly associated with ambulatory SBP or DBP after adjustment for covariates. Conclusions: Our findings indicate a small but statistically significant inverse effect of fitness on 24-hour ABP in adolescents, and no evidence of a modifying effect of adiposity on this association. Further research is needed to better understand the protective role of fitness on cardiovascular health in adolescents.


Author(s):  
Aisha Shakeel ◽  
Syeda Ghulam Fatima Sughra Zaidi ◽  
Muhammad Imran Zaib ◽  
Syed Nazir Abbas Naqvi ◽  
Zara Khalid ◽  
...  

Abstract Objective: To determine the correlation of cardio-respiratory fitness with screen time and physical activity in healthy adolescents. Methods: An analytical cross sectional study was conducted in various schools of Rawalpindi and Islamabad from February 2019 till July 2019. Ethical approval was obtained by the ethical review committee of Foundation University Islamabad and higher authorities of school settings and written informed consent was obtained from all the participants. Non probability convenience sampling was done on N= 250 adolescents of ages 11-17 years including both genders. Participants were selected on the basis of inclusion and exclusion criteria. Cardiorespiratory fitness was evaluated through YMCA 3 min Step test, physical activity levels using physical activity questionnaire for adolescents (PAQ-A) and screen time via HELENA screen time Questionnaire. Data was entered and analysed on SPSS v.21. Quantitative variables were expressed as mean ± SD and Spearman’s Rank Correlation Test was applied to determine correlation between variables. Results: 250 adolescents were recruited in our study. Gender wise distribution comprised of 128 (51.2%) males and 122 (48.8%) females. Age ranged from 11-17 years with mean age of 14.24 ± 2.177 years. The result shows that there is no significant correlation between cardiorespiratory fitness and physical activity (r=0.09, p=0.15) and between cardiorespiratory fitness and screen time in adolescents (r=-0.12, p=0.58). Continuous...


2021 ◽  
pp. 002203452199542
Author(s):  
B. Holtfreter ◽  
B. Stubbe ◽  
S. Gläser ◽  
J. Trabandt ◽  
H. Völzke ◽  
...  

Although a potential link between periodontitis and cardiorespiratory fitness might provide a reasonable explanation for effects of tooth-related alterations seen on cardiometabolic diseases, evidence is currently limited. Thus, we investigated the association between clinically assessed periodontitis and cardiopulmonary exercise testing (CPET). Data from 2 independent cross-sectional population-based studies (5-y follow-up of the Study of Health in Pomerania [SHIP-1; N = 1,639] and SHIP-Trend-0 [ N = 2,439]) were analyzed. Participants received a half-mouth periodontal examination, and teeth were counted. CPET was based on symptom limited-exercise tests on a bicycle ergometer. Associations of periodontitis parameters with CPET parameters were analyzed by confounder-adjusted multivariable linear regression. In the total sample, mean pocket probing depth (PPD), mean clinical attachment levels, and number of teeth were consistently associated with peak oxygen uptake (peakVO2) and exercise duration in both studies, even after restriction to cardiorespiratory healthy participants. Statistically significant associations with oxygen uptake at anaerobic threshold (VO2@AT), slope of the efficiency of ventilation in removing carbon dioxide, and peak oxygen pulse (VÉ/VCO2 slope) occurred. Further, interactions with age were identified, such that mainly older individuals with higher levels of periodontal disease severity were associated with lower peakVO2. Restricted to never smokers, associations with mean clinical attachment levels and the number of teeth mostly diminished, while associations of mean PPD with peakVO2, VO2@AT, VÉ/VCO2 slope, and exercise duration in SHIP-1 and SHIP-Trend-0 were confirmed. In SHIP-1, mean peakVO2 was 1,895 mL/min in participants with a mean PPD of 1.6 mm and 1,809 mL/min in participants with a mean PPD of 3.7 mm. To conclude, only mean PPD reflecting current disease severity was consistently linked to cardiorespiratory fitness in 2 cross-sectional samples of the general population. If confirmed in well-designed large-scale longitudinal studies, the association between periodontitis and cardiorespiratory fitness might provide a biologically plausible mechanism linking periodontitis with cardiometabolic diseases.


2021 ◽  
pp. 089011712098583
Author(s):  
Mats Hallgren ◽  
Davy Vancampfort ◽  
Thi-Thuy-Dung Nguyen ◽  
Elin Ekblom-Bak ◽  
Peter Wallin ◽  
...  

Purpose: To describe physical activity habits, sedentary behavior, and cardiorespiratory fitness levels among alcohol abstainers, hazardous and non-hazardous drinkers. Design: Cross-sectional study with data collected between 2017-19. Setting: Sweden. Subjects: Adults aged 18-65 years (n = 47,559; 59.4% male). Measures: During a routine health assessment, participants answered validated single-item questions regarding: habitual physical activity, structured exercise, and the percentage of time spent sedentary during leisure-time (past 30 days), and completed a 6-minute cycle ergometer test (V02max) to determine cardiorespiratory fitness (CRF). Participants were categorized as alcohol abstainers, non-hazardous drinkers or hazardous drinkers (low/high) based on the Alcohol Use Disorders Identification Test (AUDIT-C) cut-points for men and women. Analysis: Logistic regression models stratified by sex and age. Results: Compared to non-hazardous drinkers, the heaviest drinkers were less physically active (males: OR = 1.38, CI = 1.13-1.67, p = .001; females: OR = 1.41, CI = 1.01-1.97, p = .040) and more sedentary during leisure time (males: OR = 1.94, CI = 1.62-2.32, p = .000; females: OR = 1.62, CI = 1.21-2.16, p = .001). Apart from young females, the heaviest drinkers also did less structured exercise than non-hazardous drinkers (males: OR = 1.22, CI = 1.15-1.51, p = .000; females: OR = 1.43, CI = 1.15-1.78, p = .001). The strongest associations were seen among adults aged 40-65 years (shown here). High-hazardous drinking was associated with low CRF among older males only (OR = 1.19, CI = 1.00-1.41). Conclusion: Middle-aged adults with AUDIT-C scores of ≥6 (women) and ≥7 (men) were less physically active and more sedentary during leisure time and may be appropriate targets for physical activity interventions.


2017 ◽  
Vol 52 (16) ◽  
pp. 1039-1039 ◽  
Author(s):  
Adilson Marques ◽  
Diana A Santos ◽  
Charles H Hillman ◽  
Luís B Sardinha

ObjectiveThis report aimed to systematically review the evidence for a differential association between objective and self-reported physical activity and cardiorespiratory fitness on academic achievement.DesignSystematic review.Data sourcesStudies were identified from searches in Embase, Education Resources Information Center, PubMed, PsycINFO, SPORTdiscus and Web of Science databases from January 2000 to December 2016.Eligibility criteria for selecting studiesEligibility criteria included cross-sectional, longitudinal and interventional study designs. Outcomes included students’ school grade or a standardised test or measure of academic achievement. Explanatory variables were cardiorespiratory fitness and objective and self-reported physical activity. Inclusion criteria included school-aged children and adolescents aged–18 years (or students from primary to secondary school when student’s participants age was not described) and articles published in English, Portuguese or Spanish.ResultsA total of 51 articles met inclusion criteria: 41 cross-sectional, 2 intervention and 8 longitudinal studies. Results from 11 studies were inconsistent regarding the relationship between objectively measured physical activity and academic achievement. Ten of the 16 articles reported positive associations between self-reported physical activity and academic achievement. From the 22 studies that analysed the relationship between cardiorespiratory fitness and academic achievement, it was verified that they all generally support the beneficial effect of cardiorespiratory fitness on students’ academic achievement.ConclusionHigher cardiorespiratory fitness may be important to enhance children and adolescents’ health and, additionally, academic achievement. Due to a lack of consensus across studies, methodological issues associated with the assessment of physical activity should be considered when investigating physical activity and academic achievement.


2015 ◽  
Vol 40 (4) ◽  
pp. 386-392 ◽  
Author(s):  
Xavier Melo ◽  
Helena Santa-Clara ◽  
Diana A. Santos ◽  
Nuno M. Pimenta ◽  
Cláudia S. Minderico ◽  
...  

It is unclear if cardiorespiratory fitness (CRF) can be used as a screening tool for premature changes in carotid intima-media thickness (cIMT) in paediatric populations. The purpose of this cross-sectional study was 3-fold: (i) to determine if CRF can be used to screen increased cIMT; (ii) to determine an optimal CRF cut-off to predict increased cIMT; and (iii) to evaluate its ability to predict increased cIMT among children in comparison with existent CRF cut-offs. cIMT was assessed with high-resolution ultrasonography and CRF was determined using a maximal cycle test. Receiver operating characteristic analyses were conducted in boys (n = 211) and girls (n = 202) aged 11–12 years to define the optimal sex-specific CRF cut-off to classify increased cIMT (≥75th percentile). Logistic regression was used to examine the association between the CRF cut-offs with the risk of having an increased cIMT. The optimal CRF cut-offs to predict increased cIMT were 45.81 and 34.46 mL·kg−1·min−1 for boys and girls, respectively. The odds-ratios for having increased cIMT among children who were unfit was up to 2.8 times the odds among those who were fit (95% confidence interval: 1.40–5.53). Considering current CRF cut-offs, only those suggested by Adegboye et al. 2011. (Br. J. Sports Med. 45(9): 722–728) and Boddy et al. 2012 (PLoS One, 7(9): e45755) were significant in predicting increased cIMT. In conclusion, CRF cut-offs (boys: ≤ 45.8; girls: ≤ 34.5 mL·kg−1·min−1) are associated with thickening of the arterial wall in 11- to 12-year-old children. Low CRF is an important cardiovascular risk factor in children and our data highlight the importance of obtaining an adequate CRF.


2021 ◽  
pp. 1-8
Author(s):  
R. Jain ◽  
S. Kalra ◽  
S. Pawaria

Mothers are the primary caregivers of a child. While caring for a special needs child, workload of caring increases by manifold and taking care of these children increases physical & mental overload. There is a dearth of studies that have objectively evaluated mental health and fitness of this group. To study status of physical fitness, mental health and associated factors in mothers of special needs children a cross-sectional survey done on 100 mothers of special needs children from special schools in the Gurugram District, Haryana, India. The Harvard Step test was used to evaluate cardiac fitness. Standard tests were used to evaluate different components of musculoskeletal fitness. Depression was assessed by Beck Depression Inventory. Descriptive statistics were used for data analysis. The Karl Pearson correlation test was used to identify correlations between mental health and fitness components and sociodemographic characteristics. Mean age and body mass index of mothers was 36.15±2.56 years and 27.4±3.25 kg/m2, respectively. 50% of the subjects were overweight, 89% scored poor in cardiopulmonary fitness, 63% had very poor muscle endurance, and 69% had average muscular flexibility. 81% of the mothers had symptoms of clinical depression. Inverse and significant correlation was present between depression and cardiorespiratory fitness (r=-0.197), strength (r=-0.242), and endurance (r=0.209). Income, total number of children and duration of care giving were inversely correlated with depression. Positive correlation was found between type of disability and depression. There was an overall decrement in cardiorespiratory and musculoskeletal fitness. Mental health was found to be poor with a large percentage of participants showing symptoms of depression.


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