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. Author manuscript; available in PMC: 2021 Apr 1.
Published in final edited form as: Neuromuscul Disord. 2020 Feb 20;30(4):277–282. doi: 10.1016/j.nmd.2020.02.007

Table 2.

Baseline quantitative muscle testing (QMT) and accelerometry

Mean ± SD N
Median (IQR)
Arm QMT (lbs) 23 ± 12 46
21 (16, 30)
Leg QMT (lbs) 43 ± 21 46
40 (29, 59.5)
Total QMT (lbs) 66 ± 32 46
60 (42.5, 92)
Indexed arm QMT (lbs/year) 2.0 ± 1.2 46
1.8 (0.94, 3.1)
Indexed leg QMT (lbs/year) 3.7 ± 2.2 46
3.2 (1.9, 4.9)
Indexed total QMT (lbs/year) 5.6 ± 3.4 46
4.9 (2.8, 8.0)
Total wrist VM (counts/min) 1320 ± 770 43
1240 (630, 1930)
Awake wrist VM (counts/min) 6180 ± 26900 40
1960 (1140, 2590)
Total ankle VM (counts/min) 317 ± 446 38
89 (30, 559)
Awake ankle VM (counts/min) 448 ± 597 34
228 (52, 719)

SD = standard deviation

IQR = interquartile range

lbs = Pounds