Six-month physical activity and fitness changes in Project Active, a randomized trial
Six-month physical activity and fitness changes in Project Active, a randomized trial
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DOI：
10.1097/00005768-199807000-00009
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发表时间：
1998-07-01
期刊：
影响因子：
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通讯作者：
Blair, SN
中科院分区：
文献类型：
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作者：
Dunn, AL;Garcia, ME;Blair, SN
目的：积极计划是一项随机临床试验，比较生活方式体力活动计划和结构化运动计划在改变体力活动(总能量消耗[千卡·kg(-1)·d(-1)])和心肺功能(V)上的变化。方法：对235例35~60岁久坐不动的健康成人进行为期6个月的强化干预。结果：协方差分析(ANCOVA)调整了基线测量、年龄、性别、体重指数、队列和种族，结果显示，在6个月时，生活方式和结构汤都显著增加了能量消耗(P<；0.001)。平均增加+/-SE，生活方式组1.53+/-0.19kcal kg(-1)d(-1)和1.34RT：0.0kcal kg-L d-L，组间差异无统计学意义(P=0.49)。在心肺功能方面，两组患者较基线均有显著提高(P<；0.001)。生活方式组和结构组的+/-SE分别为1.58+/-0.33mL.kg-L-min-L和3.61+/-0.33mlkg-L min(-1)。这在结构化组显著更大(P<；0.081)。我们还研究了体力活动强度的变化。两组均较基线显著增加中等强度的活动，但生活方式组的增加明显大于结构性组(P=0.02)。相比之下，结构组较生活方式组增加了更多的硬活动，但差异不显著(P=0.18)。极硬活动显著增加(P<；0.01)，增加0.25kcal kg(-1)d(-1)。结论：在最初久坐的男性和女性中，这两种干预方法在6个月的时间里都能有效地增加身体活动和健康。
Purpose: Project Active is a randomized clinical trial (N = 235) comparing a lifestyle physical activity program with a structured exercise program in changing physical activity (total energy expenditure [kcal kg(-1) d(-1)]) and cardiorespintory fitness ((V) over dot O-2peak in mL kg-l min-l). Methods: Sedentary but healthy adults (N = 235) aged 35-60 years received 6 months of intensive intervention. Results: Analysis of covariance (ANCOVA), adjusting for baseline measure, age, gender, body mass index (BMI), cohort, and ethnicity, showed that at 6 months both lifestyle and structured soups significantly increased energy expenditure over baseline (P < 0.001). The mean increases +/- SE, 1.53 +/- 0.19 kcal kg(-1) d(-1) for the lifestyle group and 1.34 rt: 0.?0 kcal kg-l d-l for the structured group, were not significantly different between groups (P = 0.49). For cardiorespiratory fitness, both groups had significant increases from baseline (P < 0.001). Mean increases +/- SE were 1.58 +/- 0.33 mL kg-l min-l and 3.61 +/- 0.33 ml kg-l min(-1) for the lifestyle and structured groups, respectively. This was significantly greater in the structured group (P < 0.081). We also studied changes in intensity of physical activity. Both groups significantly increased moderate intensity activity from baseline, but the increase was significantly greater in the lifestyle group than the structured group (P = 0.02). In contrast, the structured group increased its hard activity more than the lifestyle group, but the difference was not significantly different (P = 0.18). Very hard activity significantly increased (P < 0.01) for both groups by 0.25 kcal kg(-1) d(-1). Conclusion: Both intervention approaches are effective for increasing physical activity and fitness over a 6-month period in initially sedentary men and women.