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Table 1 Participant demographics, descriptive statistics on BRT of TKA patients and proportion of patients above or below the threshold of 700 ms of BRT

From: Brake response time before and after total knee arthroplasty: a prospective cohort study

   Right-sided TKA Left-sided TKA Controls
   (n = 13) (n = 18) (n = 31)
Age (mean (SD)) [y] 65.9 (12.4) 65.7 (8.9) 52.0 (7.7)
Female [n] 9 8 19
Male [n] 4 10 12
BRT pre-op (mean (SD)) [msec] 664 (64) 632 (46)  
BRT post-op (mean (SD)) [msec] 674 (65) 642 (56)  
BRT FU (mean (SD)) [msec] 643 (55) 626 (50)  
BRT pre-op < 700 ms [n] 9 17  
  > 700 ms [n] 4 1  
BRT post-op < 700 ms [n] 9 14  
  > 700 ms [n] 4 4  
BRT FU < 700 ms [n] 11 17  
  > 700 ms [n] 2 1  
  1. The changes in the proportions of patients were found to be non-significant (Cochran test).
  2. BRT: Brake Response Time
  3. TKA: Total Knee Arthroplasty
  4. pre-op: preoperative (1 day before surgery)
  5. post-op: postoperative (2 weeks after surgery)
  6. FU: follow-up (8 weeks after surgery)
  7. SD: standard deviation