In addition, the type of activity that will be measured should be considered so a choice for the wearing position can be made.
Looking at the wearing position of the trackers (wrist-worn for the Fitbit Flex, Jawbone UP, and Nike+ Fuelband and centrally worn, e.g. close to the pelvis or trunk, for the remaining devices), our results indicate that activity trackers worn close to the body exhibit a better validity than the wrist-worn activity trackers, especially during free-living conditions.
Patient 9 wore positioning upper leg orthoses at night and patient 17 had upper leg orthoses to improve his gait.
The advantage of this method was that we were able to make a realistic comparison between the different trackers with different wearing positions because cycling was excluded.
This was required in order to be able to make a realistic comparison between the trackers; because the different wearing positions of the trackers might influence step measurements during these activities.
They can decide which fingers to put where and they can be worn to position the buttons to their choosing.
Open image in new window Fig. 10 Maximizing the equivalent density of partial cutters in the serious wear place Open image in new window Fig. 11 Double row cutter arrangement in serious wear place Open image in new window Fig. 12 Adopting large diameter cutters in serious wear position.
Images were obtained consecutively for each simulated wear position for each modality.
were mounted in the phantom fixture with the ball placed concentrically within the acetabular component (zero wear position).
For each of the CMM-scanned liners, 2 observers independently aligned the 2 spheres such that one sphere was positioned in the original position of the femoral head (pre-wear position) and the second sphere was positioned at the location of maximum wear.
Gloves were worn and positioning of the probe head was performed with great care.
