Table 1.

Characteristics of the staff who conducted the study.

ID		PT1	PT2	PT3	PT4	BE1	BE2
	Education level	PT M.Sc.	PT M.Sc.	PT M.Sc.	PT Ph.D.	BE Ph.D.	BE M.Sc.
	Staff	Clinical	Clinical	Research	Research	Research	Research
	sEMG knowledge*	Very poor	Very poor	Fair	Very poor	Excellent	Excellent
Phased of the study	Patient recruitment			X	X
	Clinical assessment			X	X
	sEMG acquisition			X	X	X	X
	o-RAGT	X	X
	sEMG analysis					X	X

The “X” shows the phases that each member of staff was involved in.

PT, Physical Therapist; BE, Biomedical Engineer; M.Sc., Master of Science; Ph.D., Philosophiae Doctor.

^*sEMG knowledge assessed by a five-points Likert scale: very poor (no knowledge about sEMG); poor (basic knowledge about muscle electrophysiology); fair (good knowledge of muscle electrophysiology and basic knowledge of detection/interpretation techniques); good (good knowledge of detection/interpretation techniques and ability to recognize artifacts, interference); excellent (good ability to detect, collect, process and interpret the signals).