Efficacy of an exercise intervention for employees with work-related fatigue: study protocol of a two-arm randomized controlled trial

Table 1 Overview of the measurement points of the primary outcomes, secondary outcomes and weekly measures

	Construct	Pre intervention (T0)	During intervention (every week) (T1-T5)	Post interventionª (T6)	Follow-up after 6 weeks^b (T7)	Follow-up after 12 weeks^b T8)
Primary outcome	Work-related fatigue:
	- Emotional exhaustion	√		√	√	√
	- Need for Recovery	√		√	√	√
	- Overall Fatigue	√		√	√	√
Secondary outcomes	Sleep:
	- Sleep quality	√		√	√	√
	- Sleep quantity	√		√	√	√
	Self-efficacy:
	- General self-efficacy	√		√	√	√
	- Work self-efficacy	√		√	√	√
	Work ability	√		√	√	√
	Cognitive functioning:
	- Updating	√		√
	- Inhibition	√		√
	- Switching	√		√
	- Subjective costs of the tests	√		√
	- Cognitive Failures	√		√
	Aerobic fitness:
	- VO_2max	√		√
	- Subjective costs of the test	√		√
Weekly measures	Employee well-being:
	- Health	√	√√√√√	√
	- Mood	√	√√√√√	√
	- Fatigue	√	√√√√√	√
	- Tension	√	√√√√√	√
	- Stress	√	√√√√√	√
	- Energy	√	√√√√√	√
	- Satisfaction	√	√√√√√	√
	- Irritation	√	√√√√√	√
	- Sleep	√	√√√√√	√
	- Self-efficacy (sport, work, private)	√	√√√√√	√
	Exercise activities:
	-Compliance to running sessions^a		√√√√√	√
	- (Other) exercise activities	√	√√√√√	√	√	√
	Subjective exercise experiences:
	- Pleasure^a		√√√√√	√
	- Effort^a		√√√√√	√
	- Detachment^a		√√√√√	√

^aCompliance to running sessions and subjective exercise experiences will be only collected among participants in the exercise condition, because participants in the control condition receive no running sessions during the intervention period
^bFollow-up measures will only be collected among participants in the exercise condition, because at the time of the follow-up measures the participants in the control condition receive the exercise intervention

ISSN: 1471-2458