Table 5. Muscle activity (mean average voltage) during kuzushi without tsukuri performed with the judo ergometer (JERGo©) system and with uke.
Pulling arm Lifting arm
JERGo© [μV] Uke [μV] p-value (d) JERGo© [μV] Uke [μV] p-value (d)
M. deltoideus 0-30 ms 121.4 ± 92.2 275.4 ± 170.0 .001 (1.13) 72.1 ± 76.6 118.6 ± 93.2 .011 (.55)
0-50 ms 151.4 ± 111.0 306.0 ± 173.9 .001 (1.06) 87.5 ± 82.5 149.0 ± 106.8 .014 (.64)
0-100 ms 221.3 ± 159.2 369.3 ± 170.0 .001 (.90) 136.1 ± 98.8 237.9 ± 159.4 .012 (.77)
0-200 ms 321.6 ± 192.8 446.6 ± 165.1 .013 (.70) 234.2 ± 151.2 368.6 ± 231.6 .013 (.69)
M. biceps brachii 0-30 ms 123.9 ± 90.6 100.4 ± 81.3 .180 (.27) 325.5 ± 283.9 234.0 ± 174.6 .109 (.39)
0-50 ms 169.0 ± 119.3 115.3 ± 83.6 .030 (.52) 399.2 ± 324.0 287.2 ± 204.8 .071 (.41)
0-100 ms 272.4 ± 170.4 153.9 ± 95.0 .008 (.86) 538.9 ± 379.9 442.2 ± 256.0 .147 (.30)
0-200 ms 383.9 ± 198.8 197.6 ± 149.3 <.001 (1.06) 697.2 ± 391.3 632.5 ± 308.2 .329 (.18)
M. erector spinae 0-30 ms 319,2 ± 119.7 305.6 ± 140.3 .517 (.10) 105.9 ± 57.0 146.8 ± 79.0 .002 (.59)
0-50 ms 322.7 ± 120.7 316.3 ± 142.1 .764 (.05) 108.9 ± 58.6 151.4 ± 79.7 .002 (.61)
0-100 ms 329.8 ± 121.9 321.7 ± 134.4 .686 (.06) 116.7 ± 61.8 152.5 ± 77.5 .006 (.51)
0-200 ms 345.7 ± 130.1 310.6 ± 127.1 .125 (.27) 122.0 ± 56.0 124.4 ± 61.6 .827 (.04)
M. trapezius 0-30 ms 335.9 ± 200.0 477.9 ± 276.4 .021 (.59) 244.9 ± 153.1 194.2 ± 124.8 .238 (.36)
0-50 ms 375.8 ± 223.0 507.4 ± 297.7 .042 (.50) 297.4 ± 186.0 267.3 ± 158.4 .576 (.17)
0-100 ms 438.4 ± 229.8 555.2 ± 301.5 .075 (.44) 370.4 ± 198.1 411.1 ± 208.7 .520 (.20)
0-200 ms 539.3 ± 231.7 589.0 ± 250.9 .358 0.21) 449.3 ± 201.9 548.5 ± 248.5 .131 (.43)
Data was shown as mean ± standard deviation (mean ± SD).