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Table 1 Plantar, Auditory, Nerve Conduction and Reaction Time Metrics. Average reaction times to a plantar touch, a pure tone auditory stimulus, and rightward lateral movement of 4 mm at 100 mm/s2 in diabetic (Peripheral Neuropathy), non-diabetic (Neurologically Intact), and young adults. Metrics given in either average ± standard deviation format or median [25% quartile, 75% quartile] format. All metrics for Semmes-Weinstein Monofilament Threshold, Air Conduction Threshold, and Nerve Conduction Studies have been averaged over both the right and left sides of the body. NCV = Nerve Conduction Velocity

From: A comparative study of reaction times between type II diabetics and non-diabetics

Group Peripheral Neuropathy (n = 13) Neurologically Intact (n = 24) Young Adults (n = 9)
Age (yrs) 60.6 ± 6.5 59.4 ± 8.0 22.7 ± 1.2
Tactile Semmes-Weinstein Monofilament Thresholds (N)    
Base Metatarsal 3.610 [2.473, 4.000] 3.610 [2.440, 3.610] 0.07 [0.0200, 0.160] †
Big Toe 3.220 [2.220, 4.080] 3.610 [2.440, 3.840] 0.07 [0.0200, 0.160] †
Air Conduction Thresholds (dB)    
1 K Hz 20.0 [15.0, 22.5] 15.0 [10.0, 20.0] †  
2 K Hz 20.0 [15.0, 30.0] 15.0 [10.0, 22.5] ‡‡  
4 K Hz 30.0 [17.5, 55.0] 25.0 [20.0, 35.0] ‡  
8 K Hz 35.0 [22.5, 67.5] ‡ 35.0 [20.0, 57.5] ‡  
Peak Accel Thresholds (mm/s 2 ) to Platform Lateral Moves    
1 mm 122.775 ± 68.964‡ 108.417 ± 59.050 ‡ 60.778 ± 51.832‡†
2 mm 77.407 ± 55.982 ‡† 42.664 ± 37.754 ‡† 10.386 ± 3.091†
4 mm 37.275 ± 30.341 18.572 ± 19.143 13.458 ± 8.343
8 mm 20.297 ± 18.680 14.077 ± 8.122 14.766 ± 8.012
16 mm 18.613 ± 9.790 11.258 ± 7.723 13.590 ± 9.083
Nerve conduction studies    
Sensory NCV (m/s) – Sural 41.0 [37.0, 45.0] † 45.0 [42.0, 47.0] †  
Motor NCV(m/s) Peroneal 42.0 [39.0, 46.0] † 48.0 [46.0, 49.0] †  
Motor NCV(m/s) – Tibial 40.5 [36.0, 45.0] † 45.0 [42.25, 48.75] †  
M-wave Latency (ms) – Peroneal 4.7 [4.15, 5.45] 4.6 [4.075, 5.3]  
M-wave Latency (ms) – Tibial 5.35 [4.4, 7.0] * 4.8 [4.2, 5.6] *  
F-wave Latency (ms) – Peroneal 52.7 [47.625, 60.950] † 49.7 [46.6, 52.325] †  
F-wave Latency (ms) – Tibial 58.5 [52.6, 64.7] † 52.5 [50.450, 55.275]†  
Reaction Times (ms)    
Touch (Big Toe) 353.1 ± 113.6 331.5 ± 140.5 216.0 ± 64.3
Tone (1 kHz) 282.6 ± 65.2 276.9 ± 105.5 218.6 ± 64.3
4 mm Lateral Platform Movement @ 100 mm/s2 777.8 ± 243.0‡† 623.9 ± 191.4‡† 431.5 ± 59.1‡†
  1. †Indicates significant group difference
  2. ‡Indicates significant threshold difference
  3. *Indicates a trend to significant threshold difference (0.05 < p < 0.07)