Niveles de actividad física en población adolescente: estudio de caso (Physical activity levels in adolescents: a case study)

La actividad física (AF) es fundamental en la infancia y en la adolescencia a fin de promover un desarrollo saludable. La OMS (2010), recomienda que los niños de 5-17 años deberían acumular un mínimo de 60 minutos diarios de AF moderada (3 - 6 METs) o vigorosa (> 6 METs). El objetivo general del estudio se centra en evaluar y conocer mediante la utilización de acelerometría triaxial si el tiempo e intensidad de la AF realizada diariamente por los adolescentes de un centro escolar cumplen con las recomendaciones de la OMS. Los participantes fueron 60 adolescentes pertenecientes a la escuela Empordá (Roses, España). Previamente se obtuvo el consentimiento informado de los padres y/o tutores. Los niveles de AF diarios fueron obtenidos mediante acelerometría, el índice de Masa corporal (IMC) se calculó utilizando el peso y la altura, la frecuencia cardíaca (FC) y tensión arterial (TA) se obtuvieron mediante un tensiómetro digital. Se realizó un análisis descriptivo de todas las variables y el test T de Student (p < .05) se utilice para analizar las diferencias entre varones y mujeres. Los pricipales resultados muestran que los varones realizan AF durante más tiempo y a mayores intensidades que las mujeres. Existe un bajo porcentaje de alumnos que cumplen con las recomendaciones de la OMS. Como conclusiones, creemos muy importante la búsqueda de nuevas estrategias y métodos a fin de involucrar un mayor número de adolescentes en la práctica de AF, como también vemos de vital inportancia las sesiones de AF en la escuela.Palabra clave: actividad física, intensidad, gasto calórico, adolescentes, acelerómetro, acelerometría.Abstract: Physical Activity (PA) is very important during childhood and adolescence in order to promote healthy development and prevent obesity. The WHO recommends 60 minutes daily of moderate-vigorous activity (e» 3 METs/day). The main objective of the study is to assess the levels of PA intensity performed daily by adolescents from a school using the triaxial accelerometry system and to know if they achieve the WHO recommendations. The sample size was 60 Spanish adolescents (14.52 ± .854 year-old) belongs to the Empordá school (Empúries, Spain). Previous informed consent was obtained from their parents and/or tutors. PA levels were obtained through accelerometry, Body Mass Index (BMI) was calculated though weight and height, heart rate (HR) and blood pressure (BP) were measured using a digital automatic blood pressure monitor. Descriptive for all data was calculated, and T–test (p < .05) was used to analyze the differences between boys and girls. The main result show that males performed PA during longer time and at higher intensity than women. There is a low percentage of students who achieve the WHO recommendations. In conclusion, we believe very important to seek new strategies and methods to involve more adolescents in the practice of PA, and we believe that PA sessions at school are very important. Key words: physical activity, intensity, energy expenditure, adolescents, accelerometry, accelerometer.

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172 VALIDATION OF A AUTOMATIC BLOOD PRESSURE MONITOR FOR STRESS TESTING USING R-WAVE GATING FOR KOROTKOFF SOUNDS

Medicine & Science in Sports & Exercise ◽

10.1249/00005768-199004000-00172 ◽

1990 ◽

Vol 22 (2) ◽

pp. S29

Author(s):

V. Bond ◽

P. Swan ◽

A. Walker ◽

D. Bassett ◽

E. T. Howley ◽

...

Keyword(s):

Blood Pressure ◽

Stress Testing ◽

Blood Pressure Monitor ◽

Pressure Monitor ◽

Automatic Blood Pressure ◽

Korotkoff Sounds

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RELIABILITY OF AN AUTOMATIC BLOOD PRESSURE MONITOR.

Cardiopulmonary Physical Therapy Journal ◽

10.1097/01823246-200718040-00024 ◽

2007 ◽

Vol 18 (4) ◽

pp. 30

Author(s):

Roberta Mawdsley ◽

Erin Confrey ◽

Tiffany Green ◽

Zach Kepzynski ◽

Jeffrey Ziegler

Keyword(s):

Blood Pressure ◽

Blood Pressure Monitor ◽

Pressure Monitor ◽

Automatic Blood Pressure

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Application and Validation of Activity Monitors’ Epoch Lengths and Placement Sites for Physical Activity Assessment in Exergaming

Journal of Clinical Medicine ◽

10.3390/jcm7090268 ◽

2018 ◽

Vol 7 (9) ◽

pp. 268 ◽

Cited By ~ 14

Author(s):

Jungyun Hwang ◽

Austin Fernandez ◽

Amy Lu

Keyword(s):

Physical Activity ◽

Heart Rate ◽

Intraclass Correlation ◽

Activity Levels ◽

Physical Activity Intensity ◽

Activity Monitors ◽

Epoch Length ◽

Activity Intensity ◽

Physical Activity Levels ◽

Rate Sensor

We assessed the agreement of two ActiGraph activity monitors (wGT3X vs. GT9X) placed at the hip and the wrist and determined an appropriate epoch length for physical activity levels in an exergaming setting. Forty-seven young adults played a 30-min exergame while wearing wGT3X and GT9X on both hip and wrist placement sites and a heart rate sensor below the chest. Intraclass correlation coefficient indicated that intermonitor agreement in steps and activity counts was excellent on the hip and good on the wrist. Bland-Altman plots indicated good intermonitor agreement in the steps and activity counts on both placement sites but a significant intermonitor difference was detected in steps on the wrist. Time spent in sedentary and physical activity intensity levels varied across six epoch lengths and depended on the placement sites, whereas time spent from a 1-s epoch of the hip-worn monitors most accurately matched the relative exercise intensity by heart rate. Hip placement site was associated with better step-counting accuracy for both activity monitors and more valid estimation of physical activity levels. A 1-s epoch was the most appropriate epoch length to detect short bursts of intense physical activity and may be the best choice for data processing and analysis in exergaming studies examining intermittent physical activities.

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Physical Activity, Aerobic Fitness, and Seven-Year Changes in Adiposity in the Canadian Population

Canadian Journal of Applied Physiology ◽

10.1139/h02-024 ◽

2002 ◽

Vol 27 (5) ◽

pp. 449-462 ◽

Cited By ~ 7

Author(s):

Michelle D. Fortier ◽

Peter T. Katzmarzyk ◽

Claude Bouchard

Keyword(s):

Physical Activity ◽

Aerobic Fitness ◽

Physical Activity Level ◽

Activity Level ◽

Activity Levels ◽

Physical Activity Intensity ◽

Physical Activity Change ◽

Activity Intensity ◽

Baseline Physical Activity ◽

Fitness Levels

Associations among baseline physical activity, aerobic fitness, changes in physical activity, and 7-y changes in adiposity were determined. The sample consisted of 602 males and 644 females, aged 20-69 y, from the 1981 Canada Fitness Survey and the 1988 Campbell's Survey. Questionnaire-derived measures of physical activity level consisted of activity energy expenditure (AEE) and time spent on physical activity. Participants were grouped into physical activity level categories by AEE and physical activity intensity (based on MET values), and physical activity level changes were determined from movement between tertiles of AEE from baseline to follow-up. Aerobic fitness levels at baseline were determined using the Canadian Aerobic Fitness Test. Changes in body mass, the sum of five skinfolds (SF5), and waist circumference (WC) were used as indicators of adiposity change. ANCOVA and multiple regression analyses indicated that neither baseline physical activity levels, intensity, physical activity change categories, nor aerobic fitness levels were significant predictors of changes in adiposity. In conclusion, physical activity was not predictive of 7-y changes in indicators of adiposity in this sample. Key words: weight gain, longitudinal study, obesity, lifestyle

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The effect of measuring times on the blood pressure values with electronic automatic blood pressure monitor

International Journal of Cardiology ◽

10.1016/j.ijcard.2011.08.495 ◽

2011 ◽

Vol 152 ◽

pp. S10-S11

Author(s):

Yuxiao Deng ◽

Xianzhi Xiong ◽

Yong Liu ◽

Menghong Wang ◽

Zeqi Zheng

Keyword(s):

Blood Pressure ◽

Blood Pressure Monitor ◽

Pressure Monitor ◽

Automatic Blood Pressure

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Physical Activity Levels in Physical Education Lessons at Singapore Primary School

ACPES Journal of Physical Education, Sport, and Health (AJPESH) ◽

10.15294/ajpesh.v1i2.52585 ◽

2021 ◽

Vol 1 (2) ◽

pp. 118-123

Author(s):

Nur Syahida Binte Jamaluddin ◽

Masato Kawabata

Keyword(s):

Physical Activity ◽

Physical Education ◽

Primary School ◽

Primary Schools ◽

Vigorous Physical Activity ◽

Activity Levels ◽

Dominant Hand ◽

Physical Activity Intensity ◽

Activity Intensity ◽

Physical Activity Levels

Physical education (PE) lessons are the appropriate occasions to promote physical activity for children. Although the moderate-to-vigorous physical activity (MVPA) levels during PE lessons were investigated in several countries, MVPA levels during PE lessons were never reported at Singapore primary schools. Therefore, the present study aimed to investigate physical activity intensity levels during PE lessons at a Singapore primary school. A total of 93 students (40 girls) voluntary participated in the study: 28 in Grade 1, 39 in Grade 4, and 26 in Grade 6. They were asked to wear an accelerometer on their non-dominant hand in two PE lessons to measure physical activity levels objectively. They also completed questionnaires on their experiences during the PE lessons. The average of the MVPA levels time (%) in the scheduled lesson time across the three grades was 46.98 ± 5.25%, but the average of the MVPA levels time (%) in the actual lesson time was 69.74 ± 7.31%. These results indicated that it would be possible to achieve the recommended MVPA time in PE lessons. The findings of this study would be useful for PE teachers to reflect whether their PE lessons are efficient to promote primary school student’s physical activity levels.

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