Table 5 Technical Data for collection phase in Children with Neurodevelopmental Disorders

[23] Floyd A. G. et al. (2007)

Piezoresistive uniaxial accelerometers with linear sensitivities of 4.5 mV/g in the biological tremor range (0–25 Hz)

Over the dorsum of both hands

Multiple recording and total recording time lasted 1–2 h

300 Hz

[22] Gordon A. M. et al. (2007)

Accelerometers (Manufacturing Technology Inc. Fort Walton Beach, FL, model 7164)

Each wrist

During the AHA test session

10 Hz

[29] Strohrmann C. et al. (2013)

ETH Orientation Sensor (ETHOS) = IMU composed by a 3D accelerometer, a 3D gyroscope and a 3D digital compass. Not commercially available.

Upper (wrists and upper arms) and lower extremities (upper legs and feet) and the trunk.

1 h, once per week over a course of four weeks.

100 Hz

[20] Zoccolillo L. et al. (2015)

Wireless triaxial accelerometers (Trigno, Delsys®).

Posterior part of forearms, of shanks and of lower trunk in correspondence of the centre of mass (L2-L3).

During 5 continuous minutes of video-game based therapy and 5 min of CT.

Not specified

[18] Sokal B. et al. (2015)

Biaxial wireless accelerometers (Model 71,256, Actigraph, Pensacola, FL)

Dorsal side of both wrists just above the styloid process

During waking hours for at least 9 h daily for 3 consecutive days after the testing session.

10 Hz, integrated over a user-specified epoch (2 s).

[26] Bergamini E. (2014)

IMUs (Opal, APDM Inc., Portland, Oregon, USA).

Both wrists and backrest of the wheelchair.

Time was manually recorded. Total time not reported.

128 Hz

[32] Kaneko M. et al. (2016)

Acceleration and angular velocity sensors (WAA-006, WAA-010, ATR-Promotions, Kyoto, Japan)

Both hands and elbows

Two motor tasks (imitative motor task and a maximal-effort motor task): 10 s for each task

100 Hz

[33] Le Moing A.G. et al. (2016)

Watch-like devices contained a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer

On each wrist

At least 30 min to complete all the tasks, without concerning potential resting period

NA

[30] O’Neill M.E. et al. (2016)

1) StepWatch activity monitor (uniaxial), 2) Actigraph GT3X (triaxial), 3) BodyMedia SenseWear Pro Armband (triaxial).

1) superior to the left/right malleolus, 2) on a waist elastic belt superior to the right/left iliac crest, 3) dorsal side of each upper arm at the midbelly of the triceps muscle

During each data collection, lasting 2–2,5 h

1 s for ActiGraph, 3 s for StepWatch, and 60 s for SenseWear.

[37] Coker-Bolt P. et al. (2017)

Triaxial Actigraph GT9X Link (Actigraph, Pensacola, FL)

On each wrist

6 h a day before and after the CIMT program (tot: 12 h)

30 Hz