Table 1. Means and standard deviations (SD) of Mean absolute relative phase (MARP), Point-estimation relative phase (PRP), Deviation phase (DP), and across trial SD and inter-trial SD of MARP and PRP; for seven participants who practiced 300 trials of serial reaching tasks. Measurement points represent Early session 1 (S1) and late session 3 (S3). All values are in degrees. Shoulder- Hip Hip-Ankle Early S1 Late S3 Early S1 Late S3 MARP 115.72 (27.20) 114.52 (40.33) 132.86 (16.53) 143.66 (9.66) PRP 116.59 (27.88) 114.49 (42.96) 166.01 (7.16) 167.23 (13.67) DP 50.37 (6.48) 51.10 (10.89) 60.17 (7.41) 62.31 (6.53) Across trial SD of MARP 14.06 (5.81) 14.27 (6.79) 19.09 (5.76) 18.08 (4.76) Across trial SD of PRP 13.67 (6.68) 16.38 (4.67) 22.05 (7.90) 23.68 (5.29) Inter-trial SD of MARP 35.92 (4.87) 43.51 (7.65) 35.50 (8.45) 39.92 (5.65) Inter-trial SD of PRP 49.70 (19.96) 61.53 (13.97) 53.16 (13.49) 63.59 (9.06) DP measures the variability across 10 continuous relative phase curves in each measure point. Across trial SD of MARP and SD of PRP measures the variability of the values across 10 trials within each measurement point. Inter-trial SD of MARP and PRP measures the variability of the values within each trial.