A study protocol of Older Person’s Exercise and Nutrition Study (OPEN) - a sit-to-stand activity combined with oral protein supplement – effects on physical function and independence: a cluster randomized clinical trial

Table 1 Participant timeline

	Enrollment	Allocation	Postallocation
TIMEPOINT	-t ₁	0	t ₁ baseline	t ₂ intervention	t ₃ w 13
ENROLLMENT:
Eligibility screen	X
Informed consent	X
Information to staff and next of kin	X
Identification of “key-persons” and meetings together with representatives from the research group		X	X	X	X
Allocation		X
INTERVENTIONS:
Sit-to-stand				X
Oral supplementation				X
ASSESSMENTS:
Sit-to-stand			X		X
Functional balance			X		X
Walking ability			X		X
ADL			X		X
Nutritional status			X	X subgroup	X
Health related quality of life			X		X
Healthcare resource use			X		X
Demographic data			X
Medical incidences				X	X
Interviews of residents					X
Interviews of staff				X	X

ISSN: 1471-2318