3 55 Interim Performance Progression (IPP) during consecutive season best performances of talented swimmers Appendix C. Mean and SD for previous season best rST, first rST, current season rST, PPA and PPB, per age, per best performance group of female swimmers. Age Best performance group N Previous season best rST First rST Current season rST PPA PPB 12 Elite 7 120.3 ± 2.2 118.4 ± 2.0 114.6 ± 2.5 98.5 ± 1.4 20.6 ± 9.9 12 High-competitive 142 128.8 ± 7.7 125.5 ± 5.7 121.6 ± 4.4 97.6 ± 3.8 14.5 ± 11.1 13 Elite 22 115.1 ± 5.0 114.0 ± 4.2 111.0 ± 3.4 99.2 ± 2.4 21.1 ± 11.7 13 High-competitive 233 121.5 ± 4.7 120.1 ± 4.2 117.0 ± 3.6 98.9 ± 2.5 14.6 ± 10.1* 14 Elite 30 110.0 ± 3.6 110.3 ± 3.3 107.7 ± 2.3 100.3 ± 1.9 23.4 ± 14.5 14 High-competitive 389 117.0 ± 4.2 116.9 ± 3.8 114.6 ± 3.6 99.9 ± 2.3 13.4 ± 11.0* 15 Elite 73 107.4 ± 2.3 108.1 ± 2.7 106.2 ± 2.1 100.7 ± 1.9 23.0 ± 16.9 15 High-competitive 511 114.8 ± 3.7 115.6 ± 3.6 113.1 ± 3.2 100.7 ± 2.0 15.6 ± 11.3* 16 Elite 104 106.9 ± 2.1 107.9 ± 2.3 106.2 ± 1.8 100.9 ± 1.7 20.4 ± 15.1 16 High-competitive 549 113.4 ± 3.0 114.3 ± 3.1 112.1 ± 2.7 100.8 ± 1.9 14.7 ± 11.4* 17 Elite 120 106.5 ± 2.0 107.4 ± 2.0 105.9 ± 1.8 100.9 ± 1.3 20.0 ± 15.9 17 High-competitive 493 112.8 ± 3.0 114.0 ± 3.1 111.8 ± 2.8 101.1 ± 1.9 14.9 ± 11.4* 18 Elite 110 105.9 ± 1.7 106.6 ± 1.7 105.3 ± 1.7 100.7 ± 1.4 20.7 ± 17.9 18 High-competitive 297 111.0 ± 2.4 112.0 ± 2.4 110.1 ± 2.0 101.0 ± 1.7 15.3 ± 11.5* 19 Elite 121 105.6 ± 1.7 106.6 ± 2.2 105.1 ± 1.9 100.9 ± 1.4 22.1 ± 17.5 19 High-competitive 244 110.6 ± 2.3 111.7 ± 2.4 109.7 ± 1.9 101.0 ± 1.7 16.3 ± 11.6* 20 Elite 116 105.4 ± 1.9 106.3 ± 2.0 104.7 ± 1.7 100.9 ± 1.2 26.0 ± 21.5 20 High-competitive 193 110.5 ± 2.3 111.7 ± 2.6 109.4 ± 2.0 101.2 ± 1.6 18.6 ± 10.9* 21 Elite 107 105.0 ± 1.8 106.0 ± 2.0 104.4 ± 1.7 100.9 ± 1.5 27.1 ± 21.5 21 High-competitive 67 109.0 ± 1.6 110.0 ± 1.7 108.1 ± 1.1 100.9 ± 1.4 17.9 ± 11.5* 22 Elite 87 104.9 ± 1.7 105.8 ± 1.9 104.4 ± 1.6 100.9 ± 1.3 24.4 ± 18.2 22 High-competitive 47 109.2 ± 1.4 109.9 ± 1.8 108.0 ± 1.0 100.6 ± 1.5 17.5 ± 11.2* Note. *indicates significant difference (tested for PPa and PPb) between elite performance group, p <0.05
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