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Table 2 Comparison between the modified and original algorithm and IMU selection

From: Auto detection and segmentation of daily living activities during a Timed Up and Go task in people with Parkinson’s disease using multiple inertial sensors

Activity Original methodology Modified methodology
Standing up • Trunk a z • Trunk a z
• Thigh a y • Thigh a y
θ hip
Sitting down • Trunk a z • Trunk a z
• Thigh a y • Thigh a y
f cutoff = 1.58 Hz θ hip
f cutoff = 0.9 Hz
Turning • Trunk ωy • Trunk ωy
Walking • Sacrum ωy • Shin a y
• Normalize thresholding θ hip
• Adaptive thresholding