Effect of a Multicomponent Intervention on Physical Fitness and Metabolic Risk Markers in Children and Adolescents: A Pilot Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 35
- 主要终点
- cardiorespiratory fitness
研究概览
简要总结
The aim of this study was: to evaluate the effectiveness of a multicomponent pilot intervention in improving physical fitness (PF) and metabolic risk markers in children and adolescents; and examine if possible changes in PF are associated with metabolic risk markers in children and adolescents exposed to intervention. For such, a multicomponent pilot intervention was performed, consisting of sessions of physical exercise and nutrition education.The study included 35 children and adolescents (ages 7-13) divided into two groups: a intervention group (INT, n = 17) and a control one (CONT, n = 18). The sample underwent two moments of data collection (T0 and T1). The 1-hour exercise sessions were held based on an intensity above 65% of maximum HR. To assess the metabolic risk markers, analyzes of total cholesterol, HDL-C fraction, LDL-c fraction, triglycerides, blood glucose, insulin, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were conducted in T0 and T1. Physical activity (PA) was assessed by accelerometry (Actigraph, GT3-X model, Florida) for 10 consecutive days. The health related PF components were evaluated throw different tests 20m Shuttle-run Test; handgrip dynamometry (TKK 5101 tightening D; Tokyo Japan); standing feet jump Test; Abdominal Test; trunk extension test; and body mass index (BMI) was calculated. Motor fitness was assessed by coordinations Test für Kinder - KTK. To assess food consumption, a 24-hour recall was held. For statistical analysis, the t-Student test and General Linear Model (GLM) - ANCOVA for repeated measures test with post-hoc Bonferroni (p <0.05) were performed. Multilinear regressions were done to analyse associations between measured outcomes.
详细描述
Study design
This quasi-experimental pilot study is part of a research study called "ACTION FOR HEALTH (Adolescents and Children in a Training InterventiON FOR HEALTH)", developed with youth of both gender (7-15 year-olds). It is a multicomponent intervention program to promote PA classes and nutrition education, and based on the behavior change Ecological Model. This information is hypothesis of the study.
ACTION FOR HEALTH study was approved by the Ethics Committee of the Center of Health Sciences of Federal University of Paraíba- Brazil (UFPB). The parents of the participants signed out a consent term.
Study sample The project was announced in public and private schools of João Pessoa (Brazil), as well as through print (newspapers) and electronic (social network) media. 59 youth volunteered, and 43 children and adolescents (7-13 year-olds) met the eligibility criteria. 8 of them did not complete all the study protocol.
So, 35 comprised the sample and did all the evaluation protocol. Participants were divided in two groups: the intervention group (INT, n = 17, 7 boys) who attended at least 75% of PA classes and met more than 50% of food goals; and the control one (CONT, n = 18, 6 boys), with a minimum or less than 49% attendance in PA classes, and were not involved in the nutrition education program.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 7 Years 至 13 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •volunteered to participate in the study
- •Excess weight / obesity for experimental group
- •Aged 7 to 13 years
排除标准
- •No complete evaluation protocol
结局指标
主要结局
cardiorespiratory fitness
时间窗: 3-months
Shuttle-run Test 20m - participants ran between two lines 20m away, keeping the rhythm corresponding to the audio signals from a prerecorded CD. The initial speed was 8.5km / h and increased 0.5km / h every minute (one minute corresponds to one stage). Participants were instructed to run in a straight line, at their own pace, and returning at the end of each beep. The test was completed when the participant failed to reach the final lines simultaneously with the audio signals on two consecutive occasions, or when it ended the test due to fatigue. The procedure was done previously described by Leger et al (1988).
Body composition:
时间窗: 3-months
body mass index (BMI) - was calculated using the formula (weight / height) 2.
Muscle strength of the upper limbs
时间窗: 3-months
Pinch manual - using a manual dynamometer with adjustable pinch (TKK 5101 Grip D; Takey, Tokyo Japan). The participant held a gradual and continuous hold for at least two seconds, with the right and left hand, with the elbow in full extension as standard procedure described above (CENTERS FOR DISEASE CONTROL AND PREVENTION (CDC). NATIONAL CENTER FOR HEALTH STATISTICS ( NCHS), 2011). The test was conducted twice on each hand and recorded the maximum score achieved in kilograms. For analysis it computed the average value between the measurements of each hand.
Abdominal endurance:
时间窗: 3-months
Test repetitions of abdominal - was to make the largest possible number of sit-ups, up to a maximum of 75 for one minute. Lying on a mattress with your knees bent, arms straight, palms face down and his head resting on the mattress. a banner was placed with a width of 11.5 cm, under the performer's knees. This track was used to determine the route to be traveled by sliding your hands on the mattress.
Flexibility of the trunk:
时间窗: 3-months
trunk extension test - consisted of starting from the prone position, with legs and outstretched arms and hands under the thighs, raise trunk controllably up to a maximum of 30 cm (measured between your chin and the mattress). There were two attempts and validated the best of them.
muscle strength of the lower limbs:
时间窗: 3-months
jump test with feet together - from an initial position with your feet parallel, immediately behind a line drawn on the ground, the participant leaped forward as much as possible, on a hard, non-slip surface. The test was performed twice and the best score was recorded in centimeters.
Flexibility of the lower limbs:
时间窗: 3-months
Test sit and reach - was to achieve the greatest distance possible with your hands, one over the other, with the participant barefoot, with the left leg bent and the other with the foot flat on the measuring bench. There were two attempts for each leg and used the average value between the two attempts for each leg.
次要结局
- Insulin(3-months)
- Triglycerides(3-months)
- Cholesterol Markers(3-months)
- Glucose(3-months)
- Hepatic markers(3-months)
研究者
Clarice Maria de Lucena Martins
Professor PhD
Federal University of Paraíba