scholarly journals Aptidão cardiorrespiratória em crianças e adolescentes

Author(s):  
Kenia Rejane de Oliveira Batista ◽  
Mona Gizelle Dreger de Oliveira ◽  
Carla Fabiane dos Santos Lemos ◽  
Josiene De Oliveira Couto ◽  
Nara Michelle Moura Soares ◽  
...  

Cardiorespiratory fitness is an important health status indicator. The purpose of this study was to verify the cardiorespiratory fitness according to age group and gender in children and adolescents from Sergipe, Brazil. It is a cross-sectional study with sample consisting of 195 adolescents of both genders with mean age of 11.75 ± 3.0 years. For the characterization of participants, a questionnaire with age and gender identification designed by researchers was used. Subsequently, participants were submitted to anthropometric evaluation in order to estimate the maturational stage by means of the peak height velocity (PHV). The 20-meter back-and-forth test was used to estimate cardiorespiratory fitness. Two-way ANOVA was applied with sample divided into two groups (“up to 13 years” and “above 13 years”). Polynomial contrast was used to identify the type of tendency for cardiorespiratory fitness, and simple contrast for multiple comparisons. All procedures were performed using SPSS version 22.0 software, considering 5% significance level. In the “over 13 years” group, there was a significant effect on the cardiorespiratory capacity behavior according to “gender” [F(1, 45) = 5.54, p = 0.02, r = 0.33] and “age” [F(4.45) = 3.37, p = 0.02, r = 0.48]. The simple contrast identified increased cardiorespiratory fitness behavior in relation to age groups of 15 and 16 year when compared to the age group of 14 years. It was concluded that gender and age positively influence cardiorespiratory fitness from the maturational reference age in the study group.

2017 ◽  
Vol 135 (3) ◽  
pp. 253-259 ◽  
Author(s):  
Ricardo Ribeiro Agostinete ◽  
Igor Hideki Ito ◽  
Han Kemper ◽  
Carlos Marcelo Pastre ◽  
Mário Antônio Rodrigues-Júnior ◽  
...  

ABSTRACT CONTEXT AND OBJECTIVE: Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: Cross-sectional study, São Paulo State University (UNESP). METHODS: The study was composed of 93 adolescents (12 to 16.5 years old), divided into three groups: no-sport group (n = 42), soccer/basketball group (n = 26) and swimming group (n = 25). Bone mineral density and content were measured using dual-energy x-ray absorptiometry and somatic maturation was estimated through using peak height velocity. Data on training load were provided by the coaches. RESULTS: Adolescents whose PHV occurred at an older age presented higher bone mineral density in their upper limbs (P = 0.018). After adjustments for confounders, such as somatic maturation, the swimmers presented lower values for bone mineral density in their lower limbs, spine and whole body. Only the bone mineral density in the upper limbs was similar between the groups. There was a negative relationship between whole-body bone mineral content and the weekly training hours (β: -1563.967; 95% confidence interval, CI: -2916.484 to -211.450). CONCLUSION: The differences in bone variables attributed to sport practice occurred independently of maturation, while high training load in situations of hypogravity seemed to be related to lower bone mass in swimmers.


2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Maya van Gent ◽  
Anita Pienaar ◽  
Habib Noorbhai

Abstract Background The aim of this paper was to investigate whether BMI and fat percentage classification criteria, would classify a sample of 7–13 year old boys from a rural background in similar nutritional categories. Methods A cross-sectional study with a stratified random sampling included 601 rural boys (7–13 years old). Fat percentage criteria classification and BMI were calculated and compared. Maturity status, and age at peak height velocity (PHV) were indirectly determined. Statistical techniques included descriptive statistics, Pearson product correlation coefficients, the Kappa agreement test and the McNemar’s test. The level of statistical significance was set at p ≤ 0.05. Results All age groups presented with statistically significant high correlations between BMI and fat percentage, and low to medium correlations between fat percentage and maturity age (MA). Measurement of agreement between BMI and fat percentage classifications showed poor to fair agreements for all age groups, with the exception of the eight-year old group which presented a moderate agreement. Conclusions Classifications based on BMI and fat percentage, results in different classifications for the same population. Until further research has been done to determine the best classification for nutritional status, it is recommended that both classification methods be used for more accurate classification of nutritional status.


2020 ◽  
Author(s):  
Maya van Gent ◽  
Anita Pienaar ◽  
Habib Noorbhai

Abstract Background: The aim of this paper is to investigate whether BMI and fat percentage classification criteria, would classify a sample in similar criteria’s. Methods: A cross-sectional study with a stratified random sampling included 602 rural boys (7–13 years old). Fat percentage criteria classification and BMI was measured Maturity, age and peak height velocity (PHV) were indirectly determined. Statistical techniques included descriptive, Pearson product correlation, the Kappa agreement test and the McNemar’s test. The level of statistical significance was set at p ≤ 0.05. Results: All age groups presented statistically significant high correlations between BMI and fat percentage, and low to medium correlations between fat percentage and maturity age (MA). Measurement of agreement between BMI and fat percentage classifications showed poor to fair agreements for all age groups, with the exception of the eight-year old group which presented a moderate agreement. Conclusion: Classifications according to BMI and fat percentage, results in different classifications for the same population. Classifications for categorizing purpose should make use of adiposity rather than BMI, as it includes fat free mass within the assessment protocol.


2021 ◽  
Vol 39 ◽  
Author(s):  
Augusto Gerhart Folmann ◽  
Vaneza Lira Waldow Wolf ◽  
Everton Paulo Roman ◽  
Gil Guerra-Júnior

ABSTRACT Objective: To identify the prevalence of overweight in adolescents according to different classification criteria for obesity and somatic maturation stages. Methods: Cross-sectional study in 10 schools in a city from Southern Brazil, with 1715 adolescents. Height, weight, waist circumference, and neck circumference (NC) data were collected. Body Mass Index was classified according to World Health Organization (WHO) and Centers for Disease Control and Prevention criteria, and the waist-to-height ratio (WHtR) was classified according to Brazilian and European cut-off points. Somatic maturation was obtained through the Peak Height Velocity. The prevalence data were compared between sex and stages of somatic maturation; the concordance between different criteria was verified. Results: The prevalence of overweight was high in both sexes; WHO criteria showed that 34.5% of boys and 29.3% of girls were overweight. For the WHtR, the prevalence was 28.4% in boys and 23.7% in girls. NC classified 13.8% of boys and 15.8% of girls as being overweight. The prevalence of overweight was higher in adolescents before complete somatic maturation. Conclusions: The prevalence of overweight was high among adolescents. The boys presented higher frequency of overweight, except if NC was used to classify them. Adolescents before somatic maturation had a higher prevalence of overweight. NC showed a lower ability to track obese adolescents.


2021 ◽  
Vol 37 (4) ◽  
Author(s):  
Zehwa Mazhar ◽  
Rabia Manzoor ◽  
Shazia Kanwal ◽  
Ghazala Iqbal

Purpose:  To check the reliability of the duo-chrome test in different age groups after best correction. Study Design:  Descriptive, Cross Sectional Study. Place and Duration of Study:  College of Ophthalmology and Allied Vision Sciences. King Edward Medical University, Lahore from September 2019 – December 2019. Methods:  Forty two cooperative patients of both genders more than 15 years of age were included but patients with poor fixation, any opacity or any other ocular pathology were excluded. Equipment used was Trial box Trial frame Auto-refractor and Snellen Chart. Group 1 composed of 17 patients (15 – 35 years of age). Group 2 (36 – 60 years) had 15 patients and group 3 (age 61-80 years) comprised of 10 patients. Data was collected on self-designed Performa. Duo Chrome was dependent variable and gender was independent variable. Data was analyzed by using statistical package for social science (SPSS22.00) and chi square test was applied. Results:  Out 42, 21 patients reported red, 12 reported green and 9 patients reported equally clear in the right eye. P value=0.156 showed that duo chrome test was equally reliable in every age group in the right eye. Similar results with p = 0.755 showed that duo chrome test was equally reliable in every age group in the left eye. Test when performed bilaterally, showed similar results. Out of 42 patients, 32 were satisfied and 10 were not satisfied with the test. Conclusion: Red Green duo-chrome test is equally reliable in all age groups to confirm refraction. Key Words: Duo chrome test, Refraction, Myopia, Hypermetropia.


2014 ◽  
pp. 90-93
Author(s):  
Van Tuan Nguyen ◽  
Tam Vo ◽  
Bui Bao Hoang

Elevated serum Transforming growth factor-beta1 (TGF-beta1) levels have been linked to tissue fibrosis including chronic kidney disease. Objectives: (1) Investigate serum TGF-beta1 levels in healthy adult people and (2) Examined the relation between serum TGF-beta1 level and gender, age, body mass index (BMI). Method: A cross-sectional study. TGF-beta1 were quantified by ELISA. Results: Levels of serum TGF-beta1 in healthy people were 13,45 ± 7,17 ng/mL mL (0,59 - 33,10 ng/mL). There are no difference of serum TGF-beta1 levels between men and women, between the age groups (<40 years, 40 to < 60 years and ≥ 60 years), between BMI groups < 23 and BMI group ≥ 23. Key words: TGF-beta1, healthy people


2016 ◽  
Vol 04 (01) ◽  
pp. 023-030
Author(s):  
Vimal Kumar ◽  
Pallak Arora ◽  
Manish Khatri ◽  
Shivani Sharma ◽  
Sumit Malhotra ◽  
...  

Abstract Objective: To estimate the prevalence of periodontal disease with different indices. Methods & materials: The study population consisted of multistage stratified random sample of 1300 subjects from total population of district Ghaziabad. A cross-sectional study was conducted with multi stage stratified random sampling techniques to select the sample population. The subjects were divided into different age groups and the periodontal assessment was made on the basis of CPITN index and ESI Index. Results: The CPITN has shown to estimate incorrect periodontal disease prevalence because of its underestimation of the disease severity. A huge difference was noticed in the prevalence rate of periodontitis when subjects were examined with ESI index. Conclusion Periodontal disease was found to be highly prevalent in the study population and severity of disease increased with age. More number of subjects in younger age group were found to be healthy.


2018 ◽  
Vol 6 (12) ◽  
pp. 232596711881104 ◽  
Author(s):  
Hans Jan Bult ◽  
Maarten Barendrecht ◽  
Igor Joeri Ramon Tak

Background: The relationship between injury risk (IR) in age groups and periods around peak height velocity (PHV) remains unclear. PHV is defined as the moment of the largest increase in body height. Purpose: To investigate injury risk and injury burden as functions of growth velocity (periods around PHV) and chronological age groupings (under 12 years [U12] to U19) in talented youth male soccer players. Study Design: Cohort study; Level of evidence, 2. Methods: A total of 170 players from the youth academy of a Dutch soccer club (highest professional league: Eredivisie) were observed for 1 to 3 seasons. Injuries, exposure, PHV age, and chronological age were registered. The injury incidence density (IID) and injury burden per 1000 hours of soccer participation, with 95% CIs, were calculated for 5 PHV periods and 7 age groups. These were compared with the overall cohort results using incidence ratios (IRs) and burden ratios (BRs) with 95% CIs. Results: The mean age at PHV was 14.4 ± 0.65 years (range, 12.8-16.5 years). The mean IID for the total cohort was 8.34 injuries per 1000 hours (95% CI, 7.71-9.02). Compared with the overall mean, a significantly higher IID was found for PHV period 4+5 (IR, 1.31 [95% CI, 1.00-1.71]; P = .049) and for the U15 group (IR, 1.49 [95% CI, 1.24-1.79]; P < .001). The overall injury burden was 58.37 injury days per 1000 hours (95% CI, 56.66-60.13). In PHV period 4+5, the injury burden was significantly higher (BR, 1.53 [95% CI, 1.39-1.68]; P < .001) when compared with the overall mean. Also, compared with the overall mean, the injury burden was higher in the U16 (BR, 1.48 [95% CI, 1.39-1.58]; P < .001), U15 (BR, 1.28 [95% CI, 1.19-1.38]; P < .001), and U17 groups (BR, 1.21 [95% CI, 1.13-1.31]; P < .001). Conclusion: Talented young soccer players were more prone to injuries during the 6 months after PHV (31% above overall mean) as well as in the U15 group (49% above overall mean). Based on the higher injury burden in the U16 (48%), U15 (28%), and U17 (21%) groups, we suggest that research on injury risk factors and preventive measures should primarily target these age groups. Additional interventions based on PHV may be of limited value from a screening perspective. Further research is needed on the interaction between age groups and PHV periods.


2018 ◽  
Vol 10 (11) ◽  
pp. 153
Author(s):  
Saad Rashid Saud Al Alawi ◽  
Muhammad Muqeet Ullah ◽  
Ahmed Yar Mohammed Dawood Al Balushi ◽  
Rajeev Kashyap ◽  
Vandita Kailas Patil

BACKGROUND: Due to one of the highest HIV prevalent province in Oman, Voluntary Counselling Testing (VCT) services were integrated in health system of Al Buraimi Governorate, Oman since December 2014. AIM &amp; OBJECTIVE: The study aimed to analyze the situation on HIV rapid testing in Al Buraimi Governorate with objective to identify client&rsquo;s risk factor among common age group and gender. METHODOLOGY: Cross sectional retrospective study was conducted in Al Buraimi Governorate, Oman among 1412 registered adult VCT clients, unbooked pregnant women with no documented HIV status at the time of delivery or abortion at Buraimi Hospital and clients during outreach community awareness activities on HIV. Retrospective analysis was performed for 3 years from December 2014 to December 2017 on parameters like Age, gender, nationality, risk factors, outcome and place of testing (Hospital and Outreach) using standard national client information form. Descriptive statistics was applied in Microsoft excel and SPSS version 24. Clients&rsquo; personal information and confidentiality of the record was maintained during entire study period with approval from regional research and ethical review committee. RESULTS: Of 1412 clients for Rapid Diagnostic Tests (RDTs), 990 (70.1%) were females and 422 (29.9%) were males with mean age 27.13&plusmn;7.02. Majority, 806 (57.1%) RDTs were in outreach followed by 470 (33.3%) and 136 (9.6%) at Maternity ward and Couselling Clinic respectively. Clients included 1294 (91.6%) Omani nationals and 118 (8.4%) non-Omani nationals. The risky behavior was found to be 126 (9%) among clients with heterosexual contributes 65 (4.6%). Among all risk factors, male clients contributed 124 (8.7%) with common age group 26-35 years 56 (3.9%). CONCLUSION: RDTs were utilized mainly during outreach activities that highlight the need of promoting VCT facilities in the clinical setting as services are available 24/7 through hotline. This baseline study would facilitate to develop plan for client&rsquo;s risk reduction.


2019 ◽  
Vol 1 (Number 2) ◽  
pp. 6-10
Author(s):  
Monowar Ahmad Tarafdar ◽  
Nadia Begum ◽  
Shila Rani Das ◽  
Sultana Begum ◽  
Mehruba Afrin ◽  
...  

This is a cross sectional study conducted among Currently Married Women of Reproductive Age (CMWRA) with a sample size of 476 selected purposively using a semi-structured questionnaire in 2018 at Moulvibazar Sadar to explore the factors affecting fertility. The result shows that 55.26% respondents were within 35 years age whereas only 4.28% from age group 46-49 years age group, 33% of the respondents got married at <16 years of age and 18.70% were illiterate, 47.90% had primary education. It is evident that 76% of the respondents were from rural area; 88% were Muslims, 29.41% from lower middle class followed by upper middle class (25.42%) and poorest comprised only 7.56%. The result explored that 73.91% of the respondents were from age group 41-45 got married before 16 years of age followed by 36-40 years (68.24%), 46-49 years (66%), 20-25 and 26-30 years age groups 52.38% and 52.75% respectively; 73.33% of respondents from rural area got married at <16 years of age, 68.42% of the Muslim at <16 years. The study explored that 96.39% from poorer section and 83.33% from poorest section got married at <16 years of age. Current study revealed that 82.91% of the respondents having secondary education got married before 16 years of age followed by illiterate (82.02%). It is explored that the age at marriage is statistically associated with residence, education, wealth index and religion (p= 0.001, 0.03, 0.001, 0.001 respectively). We conclude that the sociodemographic condition contributes mostly to fertility differentials in Bangladesh.


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