Reyes Fernández Benjamín, Fleig Lena, Godinho Cristina A, Montenegro Montenegro Esteban, Knoll Nina, Schwarzer Ralf
a Health Psychology , Freie Universität Berlin , Berlin , Germany.
Psychol Health. 2015;30(8):911-23. doi: 10.1080/08870446.2015.1006222. Epub 2015 Feb 9.
Maintaining physical exercise levels may not only require motivation and planning but also action control which is supposed to mediate between planning and exercise.
Behavioural intention, action planning, coping planning and past behaviour were assessed at baseline, and action control and concurrent exercise were measured one month later in 497 young adults.
Three nested structural models were specified to examine different mediation mechanisms. One model reflected the intention-planning-behaviour chain, the other one focused on the intention-action control-behaviour chain and the third model comprised the full sequence.
Indirect effects from intentions on exercise involved either planning or action control as mediating variables. In Model 3, all three constructs (action planning, coping planning and action control) were sequential mediators between intentions and later physical exercise levels. Action and coping planning were not directly but indirectly related to exercise via action control.
Findings support the sequential mediation for planning and action control as antecedents of physical exercise. Action control is needed for exercise, because planning in itself is not always sufficient. Maintaining exercise levels may be attributed to effective self-regulatory strategies such as action control in combination with planning.
维持体育锻炼水平不仅需要动力和计划，还需要行动控制，行动控制被认为在计划和锻炼之间起中介作用。
在基线时评估行为意向、行动计划、应对计划和过去的行为，并在一个月后对497名年轻人测量行动控制和同时期的锻炼情况。
指定三个嵌套的结构模型来检验不同的中介机制。一个模型反映意向-计划-行为链，另一个关注意向-行动控制-行为链，第三个模型包含完整序列。
意向对锻炼的间接效应涉及计划或行动控制作为中介变量。在模型3中，所有三个结构（行动计划、应对计划和行动控制）都是意向与后期体育锻炼水平之间的顺序中介变量。行动和应对计划不是直接而是通过行动控制与锻炼间接相关。
研究结果支持将计划和行动控制作为体育锻炼前因的顺序中介作用。锻炼需要行动控制，因为仅靠计划本身并不总是足够的。维持锻炼水平可能归因于有效的自我调节策略，如行动控制与计划相结合。
