Table 1.

Description of included studies

Study	Population (N)	Device Name	Intervention (weeks duration)	Comparator	Outcome
Greene, 2013 [35]	Healthy volunteers (513)	Not Reported	Access to online social network + continuous accelerometer use and feedback Duration: 24 weeks	Inactive: Printed lifestyle guidelines on diet and exercise	PA Weight
Koizumi, 2009 [38]	Older adults (68)	Kenz Lifecorder	Accelerometer with feedback + goal- setting Duration: 12 weeks	Inactive: 12 weeks of blinded accelerometer use	PA
Luley, 2014 [27]	Chronic medical illness (184)	Aipermoti on 440	3-arm study (2 interventional) Intervention arm 1: 1-time instruction on iet and physical activity + accelerometer use + 52 weekly individual letters with feedback. Intervention arm 2: Instruction on diet and physical activity + accelerometer use + 12 monthly counseling calls Duration: 52 weeks	Inactive: 1- time, 1-hour session consisting of diet education, diet regimen, and physical activity education	Weight
Nicklas, 2014 [31]	Older adults (48)	Lifecorder PlusVR tri-axial	Weight loss intervention that included hypocaloric diet (2 prepared meals a day) + 4 days/week supervised exercise + self-regulatory wearing an accelerometer, documenting activity, and 6 weekly session of behavioral counseling Duration: 20 weeks	Active: 5-month weight loss intervention consisting of diet education and physical activity education, structured exercise and in-person counseling	PA Weight
Paschali, 2005 [40]	Chronic medical illness (30)	BioTrainer	Continuous accelerometer use and feedback + 4 monthly in-person exercise behavioral counseling sessions + workbook Duration: 12 weeks	Active: Accelerometer use with 4 monthly in- person counseling, walking plan, education, behavioral self- management, goal-setting, and monitoring	PA
Polzien, 2007 [29]	Overweight/ obese and/or sedentary (57)	SenseWe ar Pro Armband	Intervention arm 1: Continuous technology-based behavioral weight control program: individualized counseling sessions + continuous accelerometer use and feedback. Intervention arm 2: Intermittent technology-based behavioral weight control program: individualized counseling sessions + 3 weeks of accelerometer use and feedback Duration: 12 weeks	Active: 7 in- person individualized counseling sessions consisting of diet education, diet regimen (1200 to 1500 kcal/day; dietary fat <20% of total energy intake), physical activity education, and weight goal- setting	PA Weight
Reijonsaa ri, 2012 [37]	Healthy volunteers (544)	Uni-axial	12 months of continuous accelerometer use and feedback + access to telephone counseling (frequency not defined) Duration: 52 weeks	Inactive: Physical exams explanation and information on physical activity and occupational healthcare	PA Weight
Shrestha, 2013 [36]	Overweight/ obese and/or sedentary (28)	Polar FA20	1-time 1.5-hour lifestyle instruction + 6 months of continuous accelerometer use and feedback Duration: 24 weeks	Inactive: Self- directed exercise and/or U.S. Army physical training	PA Weight
Shuger, 2011 [28]	Overweight/ obese and/or sedentary (197)	BodyMedi a SenseWe ar Armband	Intervention arm 1: 14 group weight loss sessions + 6 phone calls + workbook. Intervention arm 2: Accelerometer alone: Continuous accelerometer use and feedback Intervention arm 3: Continuous accelerometer use and feedback + 14 group weight loss sessions + 6 individual phone calls + workbook Duration: 36 weeks	Inactive: Self- directed weight loss manual with diet education, physical activity education, and weight goal- setting	Weight
Slootmak er, 2009 [39]	Overweight/ obese and/or sedentary (102)	PAM (model AM101)	3 months of continuous accelerometer use + tailored physical activity feedback and motivational tips via web-based portal Duration: 12 weeks	Inactive: A single written brochure with brief physical activity recommendatio ns	PA Weight
Tabak, 2014 [30]	Chronic medical illness (29)	Activity Coach	Web-based exercise program, accelerometer-based activity senor and motivational messaging, COPD self-management module, and as needed web-portal teleconsultation Duration: 36 weeks	Inactive: Usual care	PA
Thompso n, 2014 [32]	Overweight/ obese and/or sedentary (20)	GRUVE triaxial	12 weeks of continuous accelerometer use and feedback + weekly brief counseling sessions on increasing activity + treadmill desk Duration: 12 weeks	Inactive: 12 weeks of blinded accelerometer use	PA Weight
Thompso n, 2014 [34]	Older adults (49)	FitBit	24 weeks of continuous accelerometer use and feedback + weekly brief telephone counseling sessions focused on accelerometer feedback + in-person counseling. Duration: 12 weeks	Inactive: 24 weeks of blinded accelerometer use	PA Weight
Wijsman, 2013 [33]	Older adults (235)	DirectLife	12 weeks of continuous accelerometer use and feedback + personal website + personal e-coach who gives updates on activity status and advice via web portal Duration: 12 weeks	Inactive: 3- month waitlist control	PA Weight

Abbreviations: COPD=chronic obstructive pulmonary disease; PA=physical activity