Stefani Laura, Mascherini Gabriele, Scacciati Irene, De Luca Alessio, Maffulli Nicola, Galanti Giorgio
Sports Medicine Center, University of Florence, Italy.
Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Salerno, Italy, & Queen Mary University of London, Barts and The London School of Medicine and Dentistry, Institute of Health Sciences Education, Centre for Sports and Exercise, UK.
Asian J Sports Med. 2013 Dec;4(4):241-8. doi: 10.5812/asjsm.34242. Epub 2013 Aug 15.
Sedentary habits are strongly associated with increase of cardiovascular risk factors. The present study aimed to verify the role of accelerometry in identifying sedentary behavior, and the possible short term positive effect of this intervention on some anthropometric variables in a group of patients with cardiovascular risks factors.
To quantify daily Spontaneous Motor Activity (SMA) levels and identify sedentary behavior, an accelerometer was employed, in addition to a simple questionnaire, in a group of overweight, hypertensive subjects. A personalized unsupervised 3 month long physical exercise program was planned. After this time, acceleroometry was again undertaken to analyze the impact of the intervention on some life style parameters, including the number of the steps taken daily, and Physical Activity Level (PAL). In addition, body water balance, weight, and Body Mass Index (BMI) were also evaluated.
Assessment of physical activity by accelerometry identifies sedentary behaviors in a larger number of individuals. After three months of regular unsupervised aerobic exercise, PAL improved from 1.56 ±0.1 to 1.68±0.2 with P<0.005, weight (kg) reduced from 85.13 ± 20 to 83.10 ± 19 (P<0.05), BMI from 29.58 to 28.7 (P<0.05).
Accelerometry allows to objectify PAL, and can be used to monitor improvement of variables strongly related to cardiovascular risk.
久坐习惯与心血管危险因素的增加密切相关。本研究旨在验证加速度计在识别久坐行为中的作用，以及这种干预对一组有心血管危险因素的患者某些人体测量变量可能产生的短期积极影响。
为了量化每日自发运动活动（SMA）水平并识别久坐行为，除了一份简单的问卷外，还对一组超重、高血压受试者使用了加速度计。制定了一个为期3个月的个性化无监督体育锻炼计划。在这段时间之后，再次进行加速度测量以分析干预对一些生活方式参数的影响，包括每日步数和身体活动水平（PAL）。此外，还评估了身体水平衡、体重和体重指数（BMI）。
通过加速度计评估身体活动能识别出更多人的久坐行为。经过三个月有规律的无监督有氧运动后，PAL从1.56±0.1提高到1.68±0.2，P<0.005，体重（kg）从85.13±20降至83.10±19（P<0.05），BMI从29.58降至28.7（P<0.05）。
加速度测量可使PAL客观化，并可用于监测与心血管风险密切相关的变量的改善情况。
