Table 3. Mean (±SD) isokinetic peak torque and reciprocal strength ratios values per crossed combination of joint, motion, type of contraction, PTA and body side in professional soccer players (N=100). |
| Joint (motion) |
Type of contraction (testing speed) |
Professional Training Age (PTA) |
| 5-7 years (N=34) |
8-10 years (N=30) |
≥ 11 years (N=36) |
| Right |
Left |
Right |
Left |
Right |
Left |
| Knee |
Extension |
Con60 |
236 (32) |
227 (34) |
251 (42) |
245 (36) |
240 (34) |
235 (34) |
|
Con 180 |
165 (23) |
161 (22) |
173 (29) |
173 (6) |
170 (26) |
167 (24) |
|
Con 300 |
133 (17) |
132 (19) |
137 (23) |
137 (18) |
137 (21) |
135 (18) |
|
Ecc60 |
310 (60) |
299 (55) |
325 (53) |
314 (52) |
318 (66) |
306 (74) |
|
Ecc 180 |
282 (53) |
285 (65) |
303 (44) |
299 (44) |
295 (64) |
293 (67) |
| Flexion |
Con 60 |
133 (25) |
126 (24) |
141 (24) |
140 (26) |
140 (22) |
138 (20) |
|
Con 180 |
103 (18) |
96 (17) |
110 (16) |
106 (19) |
107 (17) |
105 (15) |
|
Con 300 |
92 (17) |
87 (16) |
99 (13) |
98 (15) |
93 (15) |
95 (18) |
|
Ecc 60 |
184 (42) |
183 (43) |
189 (44) |
193 (39) |
203 (32) |
200 (46) |
|
Ecc 180 |
180 (38) |
179 (36) |
190 (36) |
187 (45) |
194 (39) |
194 (38) |
| Ankle |
Dorsal |
Con 60 |
24 (5) |
23 (5) |
25 (5) |
24 (5) |
23 (6) |
22 (5) |
| flexion |
Ecc 60 |
50 (8) |
50 (10) |
50 (9) |
52 (9) |
49 (8) |
48 (8) |
| Plantar |
Con 60 |
111 (22) |
109 (19) |
120 (22) |
121 (23) |
121 (25) |
119 (25) |
| Flexion |
Ecc 60 |
212 (46) |
207 (37) |
218 (38) |
215 (36) |
216 (42) |
204 (41) |
| KneeStrength Ratios |
Conv. ratio |
60 deg/sec |
.56 (.80) |
.55 (.10) |
.56 (.80) |
.58 (.70) |
.58 (.80) |
.59 (.10) |
| 180 deg/sec |
.62 (.10) |
.59 (.10) |
.64 (.60) |
.61 (.90) |
.63 (.80) |
.63 (.90) |
| 300 deg/sec |
.69 (.90) |
.66 (.60) |
.72 (.60) |
.69 (.10) |
.68 (.10) |
.71 (.70) |
| Funct. ratio |
60 deg/sec |
.78 (.10) |
.80 (.10) |
.76 (.10) |
.84 (.10) |
.86 (.1 0) |
.85 (.10) |
| 180 deg/sec |
1.09 (.20) |
1.11 (.20) |
1.10 (.20) |
1.09 (.20) |
1.14 (.20) |
1.17 (.20) |
|
Con = Concentric, Ecc = Eccentric, Conv = Conventional concentric knee ratio (Concentric Knee Flexion/Concentric Knee Extension), Funct = Functional knee ratio (Eccentric Knee Flexion/ Concentric Knee Extension). |
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