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. 2020 Oct 2;15(10):e0239977. doi: 10.1371/journal.pone.0239977

Table 2. Mechanical variables during the 4 sets with hip-extension versa pulley.

Values are mean ± SD.

Variables Sets
1 2 3 4
CON mean Power (w) 476.7 ± 109.9* 519.1 ± 135.0 512.8 ± 127.3 538.9 ± 126.7
ECC mean Power (w) 410.8 ± 135.3* 453.9 ± 150.5 448.2 ± 142.8 481.9 ± 145.6
PM CON: ECC ratio 1: 0.85 ± 0.15c,d 1: 0.86 ± 0.11 1: 0.87 ± 0.11 1: 0.89 ± 0.12
CON peak Power (w) 770.8 ± 119.0* 816.5 ± 166.8d 813.8 ± 152.2d 870.8 ± 151.9
ECC peak Power (w) 881.9 ± 193.5c 916.5 ± 205.1 943.3 ± 242.8 1037.8 ± 221.0*
PP CON: ECC ratio 1: 1.16 ± 0.28 1: 1.15 ± 0.30 1: 1.18 ± 0.30 1: 1.22 ± 0.32
CON time (rev/s) 0.83 ± 0.05* 0.81 ± 0.06 0.80 ± 0.06 0.80 ± 0.05
ECC time (rev/s) 1.02 ± 0.23* 0.96 ± 0.13 0.94 ± 0.11 0.92 ± 0.13
Time CON: ECC ratio 1: 1.23 ± 0.29c,d 1: 1.18 ± 0.16 1: 1.18 ± 0.16 1: 1.15 ± 0.19
CON mean Velocity (m/s) 4.96 ± 0.53* 5.13 ± 0.51 5.11 ± 0.51 5.25 ± 0.53
ECC mean Velocity (m/s) 4.64 ± 0.89* 5.05 ± 0.68 5.10 ± 0.60 5.20 ± 0.73
CON peak Velocity (m/s) 7.53 ± 0.77* 7.74 ± 0.87 7.66 ± 0.83 7.86 ± 0.81
ECC peak Velocity (m/s) 7.53 ± 0.76* 7.74 ± 0.87 7.66 ± 0.83 7.85 ± 0.81

CON: Concentric Phase; ECC: Eccentric Phase; PM; Mean power; PP; Peak power; Rev/s: Revolutions per second

c = significantly different vs 3rd set (p<0.05).

d = significantly different vs 4rd set (p<0.05).

* = significantly different vs others (p<0.05).