Table 2. Mean values and standard deviations of IMTP variables by testing day and age categories.
| Category |
Variable |
Day 1 |
Day 2 |
Day 3 |
| All |
PF (N) |
1722.1
± 716.1 |
1891.3
± 706.7 |
1856.9
± 730.3 |
| RFD50 (N·s-1) |
1952.7
± 2171.9 |
2455.0
± 2039.2 |
2714.5
± 2162.0 |
| RFD100
(N·s-1) |
2369.4
± 2199.0 |
2916.5
± 2203.3 |
2973.5
± 1967.1 |
| RFD150
(N·s-1) |
2505.6
± 1964.0 |
3003.3
± 1957.6 |
3110.8
± 1806.7 |
| RFD200
(N·s-1) |
2547.7
± 1670.5 |
3130.3
± 1785.8 |
3300.9
± 1683.3 |
| RFD250
(N·s-1) |
2551.8
± 1441.3 |
3075.9
± 1551.8 |
3131.0
± 1469.4 |
| U12 |
PF (N) |
946.2 ±
176.5 |
1056.0
± 191.7 |
994.7 ±
159.4 |
| RFD50
(N·s-1) |
1088.9
± 673.8 |
1381.8
± 895.1 |
1429.3
± 868.9 |
| RFD100
(N·s-1) |
1243.7
± 731.4 |
1469.3
± 871.6 |
1497.4
± 695.8 |
| RFD150
(N·s-1) |
1364.9
± 740.5 |
1597.1
± 821.7 |
1542.3
± 619.2 |
| RFD200
(N·s-1) |
1372.7
± 626.3 |
1779.9
± 732.3 |
1653.7
± 648.9 |
| RFD250
(N·s-1) |
1298.0
± 510.4 |
1726.2
± 544.2 |
1591.7
± 540.6 |
| U15 |
PF (N) |
1788.4
± 430.6 |
1941.7
± 504.9 |
1875.5
± 501.6 |
| RFD50 (N·s-1) |
1624.4
± 1417.3 |
2462.0
± 1790.3 |
3107.3
± 2260.6 |
| RFD100
(N·s-1) |
2149.0
± 1367.9 |
2819.7
± 1538.8 |
3060.5
± 1732.7 |
| RFD150
(N·s-1) |
2229.8
± 1067.5 |
2869.6
± 1435.8 |
3117.1
± 1486.4 |
| RFD200
(N·s-1) |
2322.8
± 1003.4 |
2975.1
± 1432.9 |
3358.3
± 1282.2 |
| RFD250
(N·s-1) |
2491.3
± 931.3 |
2954.5
± 1129.4 |
3186.7
± 1081.9 |
| U18 |
PF (N) |
2591.7
± 472.1 |
2632.8
± 403.3 |
2626.8
± 427.3 |
| RFD50 (N·s-1) |
3696.3
± 3381.2 |
3515.4
± 2679.1 |
3262.5
± 2381.9 |
| RFD100
(N·s-1) |
4241.5
± 3325.6 |
4543.5
± 2996.8 |
4201.3
± 2237.2 |
| RFD150
(N·s-1) |
4504.2
± 2769.5 |
4657.6
± 2374.6 |
4557.0
± 1833.2 |
| RFD200
(N·s-1) |
4492.1
± 1927.6 |
4769.0
± 1861.6 |
4736.1
± 1576.1 |
| RFD250
(N·s-1) |
4280.6
± 1322.5 |
4651.2
± 1525.7 |
4468.7
± 1241.8 |
Data are presented as mean ± SD. PF = peak force; RFD = rate of force development; RFD50—250 = rate of force development at time intervals of 0-50, 0-100, 0-150, 0-200, and 0-250 ms; SD = standard deviation.
