Table 2.

Search strings used for article searching.

Category	Search strings	Publication year
eCoach	(mentoring OR “e-coach” OR “ecoach” OR “electronic coach*” OR counseling OR educat* OR electro*coach*) OR (telemedic* OR “mobile health” OR mhealth OR ehealth OR “e-therap*” OR “e-counseling”) AND (obesity OR overweight OR overnutrit* OR hypernutrit* OR lifestyle OR behavior OR behaviour) AND (persuasion OR recommendation OR intervention)	2014-2019
Coach	(mentoring OR coaching OR counseling OR educat* OR coach* OR executive* OR sport* OR activity* OR life*) AND (health* OR behavior OR behaviour OR psychology OR lifestyle)	2000-2019