Table 1.Anthropometric, gait velocity and surgical data. Averages are presented with standard deviations in brackets. Differences between group means are non-significant (p > 0.05) except for age (p < 0.01).Gait data was collected simultaneously using both conventional gait analysis tools as well as inertial sensors. Conventional gait data was obtained using an active marker CODA Motion Analysis System (Charnwood Dynamics, Ltd, Leicestershire, UK) that consisted of three MPX30 cameras sampling at 200 Hz. The system was integrated with two AMTI force plates sampling at 1,000 Hz (Watertown, MA, USA). Motion capture data was obtained using previously described methods [21]. Anthropometric data was obtained for the calculation of internal joint centres at the hip, knee and ankle joints, and included pelvic width (left ASIS to right ASIS), pelvic depth (ASIS to PSIS on right side), knee width and ankle width.

Limb lengths of the thigh, shank and foot were also measured with a measuring tape. The markers and marker wands were applied according to manufacturer guidelines by the same investigator on all subjects. Markers were positioned on the lateral aspect of the knee joint line, the lateral malleolus, the heel and the fifth metatarsal head. Wands with anterior and posterior markers were positioned on the pelvis, sacrum, thigh and shank. The markers were fixed to the skin with double sided tape.Two inertial sensors (Xsens MTx G25, Enchede, The Netherlands), sampling at 100 Hz, were placed on each subject. Each inertial sensor contained a 3-axis accelerometer and gyroscope.

For the research presented in this paper, only the sagittal plane shank gyroscope signal was used. The signal range of the gyroscopes were ��1,200 degrees per second. They Anacetrapib were placed on the anterior aspect of the tibia, attached to the CODA leg marker, with the centre of the inertial measurement unit at the mid-point between the lateral malleolus and the knee joint centre. The sensors were held in place with double sided tape as well as athletic tape.After the markers were secured in pl
In the last few years, there has been a growing demand for electricity on the part of industries, commercial establishments and residential dwellings. This has been the situation in both in Brazil and the rest of the world. In the period 2000�C2010, the per capita energy consumption in Brazil and in the world increased by approximately 25% and 24%, respectively [1]. Therefore, such a scenario requires a more intelligent electricity system, which can allow energy consumption to be reduced in every piece of electronic equipment and encourage consumers to employ efficient strategies for the reduction of energy consumption.