3D Sports Analytics' motion analysis, powered by Zenolink is a cutting edge tool used to gather research-level information about an individual’s serving and ground stroke motions simply by videotaping that player in action. We are unique in that we are essentially bringing the lab to you. The athlete does not need to wear cumbersome suits, vests or markers and is filmed in their natural environment. The markers are placed on the athlete in the virtual world, enabling us to create 3D imaging using as few as two cameras.
Zenolink's proprietary software creates an avatar of the athlete, breaks down the 3Dvideo and produces a performance profile. This profile measures how effectively the player utilizes peak speed output – his/her power potential. By measuring racquet speed, hip speed, shoulder internal rotation speed, elbow extension speed, ZenoLink creates separate analyses of kinetic linking, stability, muscular loading and racquet dynamics. These are used to identify functional movement discrepancies that rob the player of power, and predispose them to injuries. This data is used to design a personalized Progressive Skills Training program that corrects the improper functional mechanics.
Zenolink is a cutting-edge component to the holistic approach to tennis performance, enabling coaches to more effectively teach serving and ground stroke mechanics, and adding sport-specific Progressive Skills Training (PSTs) to the player’s fitness regimen. The information gathered provides the coaches, scouts and agents with critical information as to an athlete’s future potential and risk of injury.
This is a sample of a kinetic link graph documenting where the tennis athlete generates their power.
|
Normal |
Difference |
||
| Perfomance Factor |
180 |
190 |
10 |
| Raquet Speed @ Impact |
59 |
71 |
12 |
| % Maximum of Raquet Speed @ Impact |
87 |
95 |
8 |
| Shoulder Internal Rotational Speed @ Impact |
2100 |
2710 |
610 |
| % Maximum of Shoulder Internal Rotational Speed @ Impact |
93 |
95 |
2 |

--- hips segment speed
--- shoulders segment speed
--- elbow extension speed
--- shoulder internal rotation speed
|
Normal |
Difference |
||
| Max Hip Rotational speed segment |
236 |
516 |
280 |
| Data Point |
6 |
||
| Max Shoulder Segment Rotational Speed |
374 |
852 |
478 |
| Data Point |
10 |
||
| Max Elbow Extension Speed |
1726 |
1526 |
200 |
| Data Point |
13 |
||
| Hip shoulder Internal Rotational Speed |
2260 |
2856 |
596 |
| Data Point |
15 |
||
| Hip/shoulder Segment Kinetic Timing |
4 |
5 |
1 |
| shoulders/Arms Segment Kinetic Timing |
3 |
3 |
0 |
| Elbow Ext./shoulder Internal Rotation Kinetic Timing |
2 |
2 |
0 |
Inside 3D Sports Analytics
For more
information — or to ask Dr. Z a question about biomechanics — email Dr. Z at
![]()
Connect on Twitter