Table 4.
Quadriceps and hamstring muscle strength comparison between SB ACL and DB ACL group
| Muscle testing |
Normal knee |
Operated knee |
Deficit (%) |
||||
|---|---|---|---|---|---|---|---|
| 3 months | 6 months | 3 months | 6 months | 3 months | 6 months | ||
| Quadriceps (Concentric) |
SB |
38.26 |
40.36 |
29.73 |
35.24 |
22.32 |
12.7 |
| DB |
39.32 |
42.34 |
25.91 |
32.66 |
34.12 |
16.8 |
|
| Quadriceps (Eccentric) |
SB |
34.21 |
39.45 |
24.54 |
34.29 |
28.27 |
13.09 |
| DB |
36.27 |
40.10 |
22.01 |
32.66 |
39.34 |
18.56 |
|
| Hamstrings (Concentric) |
SB |
18.98 |
23.05 |
15.70 |
21.16 |
17.33 |
8.23 |
| DB |
21.23 |
25.42 |
17.07 |
22.55 |
19.64 |
11.32 |
|
| Hamstrings (Eccentric) | SB |
15.1 |
19.63 |
13.08 |
18.35 |
13.4 |
6.56 |
| DB | 18.46 | 22.31 | 15.72 | 20.31 | 14.88 | 9.80 | |
*HUMAC/NORM Isokinetic muscle testing (torque = N/m2) at 60/60 deg/sec 3 Reps.
*In normal subjects, imbalances of 10% or less can be considered normal while differences of 10% to 20% possibly abnormal and those above 20% probably abnormal.