Table 1. Characteristics of the three regular (R) and video-instrumented (VI) rackets (strung and with grip tape). The pivoting axis used to measure the swingweight and twistweight was fixed at 10 cm from the handle extremity, according to the axis system (X, Y, Z) defined in the .
|
A |
B |
C |
| R |
VI |
R |
VI |
R |
VI |
| Mass (g) |
302 |
340 |
320 |
359.8 |
365 |
387.4 |
| Balance (mm) |
321 |
331 |
302 |
321 |
320 |
326 |
| Swingweight (kg·cm2) |
292 |
346 |
278 |
331 |
342 |
368 |
| Twistweight (kg·cm2) |
338 |
364 |
320 |
346 |
356 |
385 |
| Polar moment (kg·cm2) |
13.9 |
17 |
11 |
14.4 |
13.6 |
16.4 |
