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Table 2 ICC (2 way, random effects model for absolute agreement) between first and second visit

From: Acceptability and feasibility of magnetic femoral nerve stimulation in older, functionally impaired patients

  ICC (95% CI) p
6 minute walk distance
 All 0.94 (0.79–0.98) < 0.001
 Stable on 6MWa 0.98 (0.92–1.00) < 0.001
Maximal voluntary quadriceps contraction strength
 All − 0.27 (− 0.84 to 0.41) 0.77
 Stable on 6MWa − 0.63 (− 1.14 to 0.26) 0.92
Maximal quadriceps twitch tension
 All 0.06 (− 0.53 to 0.68) 0.44
 Stable on 6MWa − 0.21 (− 0.92 to 0.74) 0.65
Handgrip strength
 All 0.89 (0.65–0.97) < 0.001
 Stable on 6MWa 0.85 (0.10–0.97) < 0.001
Short physical performance battery
 All 0.55 (− 0.08 to 0.86) 0.04
 Stable on 6MWa 0.62 (− 0.13 to 0.91) 0.05
  1. aExcluding those with 6 minute walk (6MW) difference of ≥ 50 m between visits