FPGA Implementation of a Single Step MFCV Estimator Based on EMG in Diabetic Neuropathy

Table 4

State of the art solutions comparison table.

Parameters\work		This work	[7]	[8]	[9]
Platform		EMG; FPGA	EMG; ASIC	EMG; μC	EMG; force controlled chair; PC
Applicability	OL^1	✔	✘	✘	✘
	Clin.^2	✔	✔	✔	✔
EMG stimulation		Voluntary	Voluntary	Electrical	Voluntary
Involved limb		Leg	Arm	Arm	Arm
Num. of electrodes		4	2	8	64 (array)
Positioning Assistance		✔	✘	✘	✘
Computing method		Single XNOR cross-correlation	On-going cross-correlation	Cross-correlation	Delay-locked loop (DLL)
Timing^3		Real-time	Real-time	Online computed	Online computed
resolution (ms@fclk)^4		0.5 ms at 2 kHz	0.5 ms at 2 kHz	50 ms at 1 kHz	1 ms at 1 kHz
Application		Fatigue; OL MFCV monitoring	Fatigue	MFCV monitoring	MFCV monitoring

¹OL: ordinary life applicability. ²Clinical applicability. ³Real-time requests for acquisition + computing time < 400 ms. ⁴The resolution is upper limited by 2 kHz (present work sampling frequency).