Table 1.

Mean Demographics Values for Patient (ALS) and Healthy Control (HC) Groups

Subject	Gender	Age (y)	Handedness	Dominant H.S. (kg)	ND H.S. (kg)	Disease duration (mo)	ALSFRS-r
ALS (n= 21)	13 M, 8 F	59.8 (± 6.5, 45.9–68.5)	20R, 1L	19.05 (0–48.94)	16.36 (0–42.42)	20.48 (±16.82)	37.86 (±5.77, 26–46)
HC (n= 21)	11 M, 10 F	56.5 (± 5.1, 44.2–63.7)	17R, 4L	34.46 (14.39–60.45)	35.23 (12.57–56.21)	N/A	N/A

H.S. = hand strength. ND H.S. = non-dominant hand strength; ALSFRS-r = ALS functional rating scale, revised version (total possible score is 48).