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. 2017 Oct 11;12(10):e0186297. doi: 10.1371/journal.pone.0186297

Table 1. Impact and jump performance related variables (n = 21 participants).

Variable Shoe type SF0 SF1 SF2 SF3 SF4 Shoe effect (p-value) SF effect (p-value) Shoe*SF (p-value)
Ankle Jumps
PVGRF (N.kg-1) MIN 60.0±5.0 59.2±5.3 61.4±7.0 60.5±6.9 60.3±4.7 0.002 0.636 0.637
CUSH 62.3±5.7 62.0±6.5 62.2±4.8 61.4±5.6 61.5±5.4
VILR (N.s-1. kg-1) MIN 2859±1117 2825±1360 2678±1113 2429±871 2074±625 <0.001 <0.001 0.414
CUSH 1876±415 1890±472 1907±415 1772±267 1546±318
VALR (N.s-1. kg-1) MIN 699±132 689±124 730±188 714±137 704±115 <0.001 0.617 0.782
CUSH 800±154 783±166 795±114 782±132 767±132
CT (ms) MIN 198±15 201±21 195±19 197±23 199±16 <0.001 0.300 0.971
CUSH 188±18 189±18 185±14 188±17 190±13
Wecc (J. kg-1) MIN -4.0±0.5 -4.2±0.7 -4.0±0.6 -4.0±0.7 -4.0±0.6 0.008 0.524 0.972
CUSH -3.9±0.6 -4.0±0.7 -3.9±0.6 -3.9±0.6 -3.9±0.6
JH (cm) MIN 23.8±4.3 24.5±5.2 24.1±4.4 23.4±5.2 23.5±4.0 0.588 0.444 0.998
CUSH 23.6±3.8 24.1±5.1 23.9± 4.4 23.4±4.4 23.4±4.2
Wcon (J. kg-1) MIN 4.1±0.6 4.2±0.8 4.1±0.6 4.0±0.8 4.1±0.5 0.004 0.266 0.980
CUSH 3.9±0.6 4.0±0.7 4.0±0.6 3.9±0.6 3.9±0.6
Multi-jumps
PVGRF (N.kg-1) MIN 36.2±7.0 36.2±8.0 36.5±7.4 35.3±7.5 35.0±7.3 <0.001 0.240 0.740
CUSH 31.6±5.4 32.9±6.0 34.0±7.5 32.2±5.9 32.4±6.4
VILR (N.s-1. kg-1) MIN 3340±1361 2666±1316 2953±1403 2523±856 2077±793 <0.001 <0.001 0.003
CUSH 1966±541 1911±567 2001±732 1854±445 1815±565
VALR (N.s-1. kg-1) MIN 427±139 430±158 423±153 411±139 402±145 0.488 0.802 0.533
CUSH 402±151 395±153 433±207 399±149 423±139
CT (ms) MIN 636±103 646±104 596±109 618±93 620±85 0.002 0.013 0.694
CUSH 593±88 617±112 581±105 603±91 604±96
Wecc (J. kg-1) MIN -7.9±0.6 -8.0±0.7 -7.8±0.7 -8.0±0.7 -8.0±0.6 0.792 0.380 0.903
CUSH -7.9±0.6 -8.0±0.7 -7.9±0.7 -7.9±0.7 -7.9±0.7
JH (cm) MIN 33.4±4.8 33.6±4.0 33.4±3.7 33.9±4.9 33.2±4.3 <0.001 0.304 0.714
CUSH 34.0±3.9 34.2±4.3 34.3±3.9 34.1±4.4 33.8±4.3
Wcon (J. kg-1) MIN 7.8±0.8 7.9±0.7 7.7±0.6 7.9±0.7 7.8±0.6 0.061 0.171 0.900
CUSH 7.7±0.6 7.8±0.7 7.7±0.6 7.7±0.6 7.8±0.6

Values are Mean±SD. PVGRF: Peak Vertical Ground Reaction Force; VILR: Vertical Instantaneous Loading Rate; VALR: Vertical Average Loading Rate; CT: Contact Time; Wecc: Eccentric Work; JH: Jump Height; Wcon: Concentric Work; N: Newton; kg: kilogramme; s: second; ms: millisecond; cm: centimetre; J: Joule; MIN: Minimalist shoes; CUSH: Cushioned shoes; SF: Sports Floorings.