Normalize EMG by MVC or peak
Usage
normalizeEMG(x, method = c("mvc", "peak"), mvc = NULL, scale_percent = TRUE)References
Merletti R, Parker PA (2004). "Electromyography: Physiology, Engineering, and Non-Invasive Applications." IEEE Press/Wiley.
See also
rectifyEMG() for signal rectification,
computeRMSEnvelope() for RMS envelope computation,
processEMG() for complete EMG processing pipeline.
Examples
x <- matrix(abs(rnorm(500)), ncol = 2)
normalizeEMG(x, method = "peak")
#> [,1] [,2]
#> [1,] 30.37647053 16.5119432
#> [2,] 13.03330756 16.8805415
#> [3,] 1.08587788 21.5750189
#> [4,] 26.91433007 33.5482145
#> [5,] 14.43484958 9.2855705
#> [6,] 54.08079483 40.2238778
#> [7,] 4.40013062 3.6839432
#> [8,] 8.97696865 15.0529598
#> [9,] 44.01534003 0.7171740
#> [10,] 12.34814181 34.0078850
#> [11,] 86.24836743 35.6369871
#> [12,] 23.79615186 0.5408804
#> [13,] 46.49283150 39.0642101
#> [14,] 95.86123476 43.4426492
#> [15,] 2.15614484 3.6418184
#> [16,] 5.40664666 50.9203132
#> [17,] 8.97612771 13.3793627
#> [18,] 18.69984618 34.3468151
#> [19,] 10.83975373 1.3729256
#> [20,] 21.64139128 69.6110239
#> [21,] 32.75182388 24.6542794
#> [22,] 25.21273946 61.4665441
#> [23,] 14.56610937 84.2838526
#> [24,] 20.99435587 11.5970476
#> [25,] 27.03847585 23.2180142
#> [26,] 14.17698150 26.5741267
#> [27,] 5.88142652 11.3253229
#> [28,] 28.46512017 7.8315489
#> [29,] 87.69863868 47.1777542
#> [30,] 17.70053676 40.7998499
#> [31,] 4.94012948 66.0253133
#> [32,] 60.82022106 32.5575724
#> [33,] 18.52796899 12.2704620
#> [34,] 38.49380666 17.1741903
#> [35,] 26.69839017 55.1372961
#> [36,] 15.84260211 12.2089189
#> [37,] 43.58293398 4.2404137
#> [38,] 25.85164564 31.2006932
#> [39,] 26.50931970 51.2212718
#> [40,] 21.39310828 16.0525451
#> [41,] 25.76735672 8.7527987
#> [42,] 0.56294956 18.2566563
#> [43,] 44.59290704 4.5780561
#> [44,] 4.29523846 10.3263262
#> [45,] 28.37462737 15.8055932
#> [46,] 10.24821617 29.9287007
#> [47,] 23.44480092 13.2750464
#> [48,] 43.58315374 10.2785659
#> [49,] 2.72593297 36.3814663
#> [50,] 55.43218232 32.2674139
#> [51,] 63.50418901 29.7753285
#> [52,] 18.20687817 13.7763230
#> [53,] 18.77161963 39.2259534
#> [54,] 28.49851267 10.4338178
#> [55,] 45.39128733 24.8855425
#> [56,] 34.66580406 2.8129385
#> [57,] 1.93829755 12.8574693
#> [58,] 41.59412626 44.6596125
#> [59,] 29.20604644 5.2573311
#> [60,] 21.34246344 26.0959497
#> [61,] 29.14535815 2.0876603
#> [62,] 0.04881668 20.5493716
#> [63,] 29.93722472 44.5262843
#> [64,] 9.32800707 10.1216906
#> [65,] 11.43583549 30.3381784
#> [66,] 4.66044314 32.4968680
#> [67,] 24.95911347 5.8703379
#> [68,] 5.72338247 32.1239245
#> [69,] 16.61701570 3.5778194
#> [70,] 23.36337372 19.4508485
#> [71,] 46.32277757 10.5332215
#> [72,] 1.80561450 11.7249164
#> [73,] 23.19363429 21.1527257
#> [74,] 0.09190387 25.3113128
#> [75,] 48.03997312 7.0187905
#> [76,] 37.76548388 2.1869898
#> [77,] 10.93650972 2.6832160
#> [78,] 2.53127890 6.6106637
#> [79,] 25.97380257 15.6279657
#> [80,] 57.61481903 5.7686517
#> [81,] 27.46413078 47.9978645
#> [82,] 15.37207746 35.0644088
#> [83,] 44.25522711 3.4371035
#> [84,] 28.29004370 68.0857125
#> [85,] 9.56783930 10.8774029
#> [86,] 16.53347187 9.7868727
#> [87,] 13.99605720 45.4889748
#> [88,] 26.79161406 7.7254088
#> [89,] 35.05565572 5.5892813
#> [90,] 49.75077270 0.6113184
#> [91,] 14.86624015 19.9136875
#> [92,] 29.63030473 28.8555305
#> [93,] 39.79996242 30.6321894
#> [94,] 0.78369168 4.2484488
#> [95,] 33.70733923 73.4781557
#> [96,] 21.79361632 19.6879256
#> [97,] 38.85434660 23.9440002
#> [98,] 14.43775010 42.9593674
#> [99,] 16.63281068 54.3107877
#> [100,] 10.08985778 0.7503555
#> [101,] 10.34188860 72.4815413
#> [102,] 16.80259378 20.8354272
#> [103,] 18.98463943 8.2192453
#> [104,] 23.90262945 17.9931119
#> [105,] 49.52562311 55.8190590
#> [106,] 68.60687070 38.1326613
#> [107,] 19.21895569 56.7903414
#> [108,] 24.55790320 7.6459373
#> [109,] 74.78426114 42.8789965
#> [110,] 58.36119429 7.0648507
#> [111,] 15.71005988 74.8285859
#> [112,] 9.08608148 13.2939573
#> [113,] 3.00410197 14.6379142
#> [114,] 10.61923158 77.2897779
#> [115,] 29.89637838 43.4823212
#> [116,] 23.49411952 23.0381651
#> [117,] 32.02616643 5.7385358
#> [118,] 34.97413908 18.0104585
#> [119,] 32.05954404 10.0992546
#> [120,] 11.53717085 13.9274218
#> [121,] 39.48573711 39.2919312
#> [122,] 19.10769318 20.5912866
#> [123,] 40.34881725 58.9204042
#> [124,] 29.84891689 62.9636594
#> [125,] 68.88785250 35.8208731
#> [126,] 14.68738539 68.8928724
#> [127,] 21.92504877 9.2990614
#> [128,] 44.27649395 23.9324677
#> [129,] 24.55474351 14.8322410
#> [130,] 22.09107139 47.9778490
#> [131,] 12.96833756 31.6583824
#> [132,] 14.31808364 28.7574374
#> [133,] 5.37313271 50.3244555
#> [134,] 2.14285726 49.9389971
#> [135,] 0.16011298 24.3591741
#> [136,] 11.44359627 25.7877743
#> [137,] 21.62439612 6.7128720
#> [138,] 10.20780833 55.8331175
#> [139,] 24.58636629 0.2991276
#> [140,] 24.53686605 13.9681208
#> [141,] 5.44218977 21.4820179
#> [142,] 8.12074220 27.5817926
#> [143,] 40.09483422 38.9965156
#> [144,] 40.19295435 5.2604841
#> [145,] 1.86298980 17.9834957
#> [146,] 9.97543950 41.6571079
#> [147,] 6.75807791 21.9938412
#> [148,] 27.37496335 49.4804052
#> [149,] 30.12226444 34.1415824
#> [150,] 46.64841250 72.1732694
#> [151,] 37.89079085 15.7865593
#> [152,] 10.80164938 5.7510367
#> [153,] 16.39318129 31.1816427
#> [154,] 19.87204587 1.0243616
#> [155,] 15.65370342 64.5546364
#> [156,] 7.13986217 41.9886225
#> [157,] 15.98588576 59.1259501
#> [158,] 31.63233273 28.2860990
#> [159,] 38.60244530 44.1199011
#> [160,] 22.14076829 14.8772926
#> [161,] 13.47577972 20.7684620
#> [162,] 7.17350644 18.3719752
#> [163,] 15.09809495 9.4846631
#> [164,] 1.85733839 24.2214518
#> [165,] 40.76416334 35.4391695
#> [166,] 21.40348912 14.6968981
#> [167,] 33.25249804 22.4572780
#> [168,] 100.00000000 12.5468798
#> [169,] 43.30831495 16.5218961
#> [170,] 83.76661157 22.8860401
#> [171,] 17.56094006 0.9479490
#> [172,] 26.14295223 10.6909485
#> [173,] 28.96951685 29.1525297
#> [174,] 21.75243395 23.0683891
#> [175,] 28.93482789 33.2068857
#> [176,] 29.83880326 48.5371970
#> [177,] 10.91015866 6.3686730
#> [178,] 40.76143849 7.5283542
#> [179,] 9.69530376 20.5701231
#> [180,] 33.55321387 8.5819182
#> [181,] 3.84179728 3.9251292
#> [182,] 4.66317656 28.3757713
#> [183,] 26.93937775 53.6192556
#> [184,] 9.39495880 6.7628893
#> [185,] 17.01517846 18.1272986
#> [186,] 6.49047555 5.1253907
#> [187,] 34.90651557 43.8975044
#> [188,] 12.16830519 12.7795142
#> [189,] 5.34725469 62.2659189
#> [190,] 12.73875108 3.3706381
#> [191,] 21.92182898 52.6711421
#> [192,] 35.90601736 4.1437090
#> [193,] 9.01833206 55.4969070
#> [194,] 42.13977875 52.0105665
#> [195,] 8.59038602 13.8245729
#> [196,] 44.46043872 12.9581804
#> [197,] 5.16468031 33.8894354
#> [198,] 47.75530156 4.8791976
#> [199,] 2.70904822 41.7441190
#> [200,] 37.54135973 1.9966057
#> [201,] 46.78666062 39.5837934
#> [202,] 1.54788321 11.7909067
#> [203,] 28.23713743 40.2649511
#> [204,] 29.59740948 22.6565680
#> [205,] 22.46729496 3.4739855
#> [206,] 2.40039739 11.6690166
#> [207,] 42.96792619 40.3802827
#> [208,] 1.14761482 18.6826273
#> [209,] 46.11107216 37.1617484
#> [210,] 9.80099351 35.8424964
#> [211,] 10.48477810 0.4409095
#> [212,] 39.61628914 7.3981996
#> [213,] 36.20957117 1.5562338
#> [214,] 16.73845633 39.4149800
#> [215,] 10.11067620 26.6512431
#> [216,] 86.41485294 11.7213588
#> [217,] 83.85145458 5.0366904
#> [218,] 23.78490710 43.7203865
#> [219,] 32.82489019 60.2175450
#> [220,] 1.61826573 14.6288767
#> [221,] 42.22220812 5.3207528
#> [222,] 53.29247559 1.8539047
#> [223,] 4.22740216 4.2808682
#> [224,] 19.43366364 4.3840191
#> [225,] 7.94099571 26.4914326
#> [226,] 2.12121482 16.6481826
#> [227,] 23.70105689 100.0000000
#> [228,] 16.74529728 45.1614673
#> [229,] 26.71613585 7.5580701
#> [230,] 21.54738753 49.4683433
#> [231,] 1.67903700 30.2105690
#> [232,] 3.99666118 32.7333336
#> [233,] 20.46803094 30.1287523
#> [234,] 44.88554445 75.8093095
#> [235,] 3.30017746 37.3602489
#> [236,] 23.97364187 71.3761240
#> [237,] 5.72479170 34.4684188
#> [238,] 36.81787829 48.8328932
#> [239,] 50.41408165 37.5208888
#> [240,] 37.79189842 3.1733574
#> [241,] 2.21656146 24.5130215
#> [242,] 5.73029854 1.5922816
#> [243,] 13.10586152 15.0885843
#> [244,] 7.75800302 48.7134911
#> [245,] 2.06105928 39.3567156
#> [246,] 3.93548043 64.5946211
#> [247,] 23.31754060 36.7965760
#> [248,] 88.09990633 12.0353479
#> [249,] 22.31592252 6.6038784
#> [250,] 5.66400105 11.8530688