Table 1.

Performance objectives per "self-regulation" phase

Self-regulation phase	Performance objectives
Monitoring	Adolescents monitor current state of PA (PO1a)
	Adolescents identify sub-behaviours which can be improved (PO1b)
Motivational phase	Adolescents decide to increase PA (PO2a)
	Adolescents select a PA activity that fits with their personal preference (PO2b)
	Adolescents are decide to increase the PA activity of personal preference (PO2c)
Goal setting	Adolescents set challenging, but feasible PA goal (PO3a)
	Adolescents create an action plan to achieve PA goal (PO3b)
Active goal pursuit	Adolescents engage in activities to accomplish PA goal (PO4a)
Evaluation	Adolescents monitor their achievements (PO5a)
	Adolescents decide, based on their achievements, to proceed pursuing their goal or state a new goal (PO5b)
	Adolescents make a long-term planning (PO5c)

PO = performance objective