Leg Press Test
This widely used test measures the muscular strength of the lower extremity. A one repetition maximum (1 RM) or a predicted maximum from the equation can be used. The estimation equation is safer to use on many populations and is therefore recommended.
Procedure:
Starting Position: Adjust the seat carriage so that the knee angle is slightly under 90 degrees. The knees should not be anterior to the toes and articulate in a linear fashion (no varus or valgus stress). The back and buttocks should remain in contact with the pad. The head and shoulders should be placed on the pads with the hands lightly squeezing the grips. One complete repetition is from the starting position to a knees extended, but not locked, position. Allow the participant to acclimate to the motion with light weight and then proceed to conduct the test.
Formula:
Maximum weight (1RM) / Body weight (lbs.)
1 plate = 20 lbs. on Cybex Leg Press
½ plate = 10lbs. “ “
Males
| Age |
0-19 |
20-29 |
30-39 |
40-49 |
50-59 |
60+ |
| Excellent |
> 2.52 |
> 2.27 |
> 2.07 |
> 1.92 |
> 1.80 |
> 1.73 |
| Good |
2.18-2.52 |
2.09-2.26 |
1.89-2.06 |
1.78-1.91 |
1.68-1.79 |
1.58-1.72 |
| Average |
1.95-2.17 |
1.91-2.08 |
1.71-1.88 |
1.62-1.77 |
1.52-1.67 |
1.43-1.57 |
| Fair |
1.80-1.94 |
1.68-1.90 |
1.56-1.70 |
1.48-1.61 |
1.36-1.51 |
1.27-1.42 |
| Poor |
0-1.79 |
0-1.67 |
0-1.55 |
0-1.47 |
0-1.35 |
0-1.26 |
Females
| Age |
0-19 |
20-29 |
30-39 |
40-49 |
50-59 |
60-69 |
| Excellent |
> 1.85 |
> 1.82 |
> 1.61 |
> 1.48 |
> 1.37 |
> 1.32 |
| Good |
1.69-1.84 |
1.65-1.81 |
1.42-1.60 |
1.33-1.47 |
1.20-1.36 |
1.16-1.31 |
| Average |
1.45-1.68 |
1.44-1.64 |
1.27-1.41 |
1.18-1.32 |
1.05-1.19 |
0.99-1.15 |
| Fair |
1.25-1.44 |
1.26-1.43 |
1.12-1.26 |
1.06-1.17 |
0.92-1.04 |
0.86-0.98 |
| Poor |
0-1.24 |
0-1.25 |
0-1.11 |
0-1.05 |
0-0.91 |
0-0.85 |
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