The aim of this study was to correlate functional tests, clinical tests and rotator cuff strength with the speed of serve.

For that purpose, tennis players (ITN 2-4) will be recruted among tennis players in the Province of Liege. They will be assessed 2 times.

During the first assessment, lateral medicine ball throw, 2 ball throws, upper extremity y balance test and shoulder rotation range of motion will be assessed.

During the second assessment, lateral medicine ball throw, the 2 ball throws and rotator cuff strength will be assessed.

Forty healthy tennis players (ITN 2-4) will be recruted among players in the club of the Province of Liege.

First session :

• Clinical testing

  1. Upper extremity Y Balance Test
  2. Range of motion (internal/external rotation)

• Functional tests

  a. Lateral Medecine Ball throw (5 repetitions) b. Single arm ball throw (1,5kg) d. Core endurance test

• Assessment of serve speed (radar) during 15 serves

Second session :

• Clinical testing

  a. Assessment of rotator cuff muscles strength

• Functional tests

  1. Lateral Medecine Ball throw (5 repetitions)
  2. Single arm ball throw (1,5kg)

Inclusion Criteria:

• playing tennis at a level of ITN2-4
• being healthy

Forty healthy tennis players (aged 14-30) and ITN 2-4 will be recruted in the clubs of the Province of Liege.