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Table 4 Agreement between VO2 corresponding to LT, VT and HRVT-RMSSD and HRVT-SD1 for type 2 diabetes mellitus individuals (n = 9) and non diabetes individuals (n = 10).

From: Noninvasive method to estimate anaerobic threshold in individuals with type 2 diabetes

Groups Reference methods Testing methods Mean of differences Limits of Agreement
T2D LT HRVT-RMSSD 0.3 ± 2.0
  LT HRVT-SD1 0.1 ± 4.6
  VT HRVT-RMSSD 0.1 ± 4.1
  VT HRVT-SD1 0.5 ± 4.9
ND LT HRVT-RMSSD -0.3 ± 4.2
  LT HRVT-SD1 0.3 ± 2.9
  VT HRVT-RMSSD 1.3 ± 5.9
  VT HRVT-SD1 0.9 ± 6.2
  1. T2D = Type 2 diabetes individuals; ND = non diabetes individuals; LT = lactate threshold; VT = ventilatory threshold; HRVT-RMSSD = Heart rate variability threshold for RMSSD; HRVT-SD1 = Heart rate variability threshold for SD1.