Wrist Angle Paper Experiment Comparison about semg HOT 2 OPEN

Electrode location

• Equal distance placement w/ 4-ch sEMG
• Forming a ring around the thickest part of the forearm (~4.5cm from elbow)
  • Circumference 27.5cm, divided by 4 --> 6.9cm lateral inter-electrode distance
  • Placing clockwise, labelled 1-4
• Exact placement
  • Baseline test: Ring starting from the top of the forearm w/ palm facing down
  • "Random" test: Ring starting from the top of the forearm w/ palm facing down, then rotate 45d
• Reference electrode placed near the bony area near wrist

from semg.

Recording

• Separate PRO/SUP/FLX/EXT
• 5 iteration in each session w/ 3 session
• Segments are separated in post-processing
• For nICA
  • FLX/EXT/PRO/SUP, 1iter. each in 1 session (3 session in total)

Cross-validation

• Segments from different sessions are mixed
• 4-1 cross validation (12-3 in this case)
• Separate FLX/EXT and PRO/SUP training for now (1, 3)

from semg.