• The aim of this training project is to allow the subject GG, 22 yo, 196cm, 76 kg, to restart his sport activity as amateur volleyball player
  • The athlete, affected by bilateral rotuleous tendinopathy, came to our centre in order to be treated.
  • Our intervention was based on physioterapic sessions, then, once the subject achieved a complete return to functionality, he started a strength conditioning training in November 2019, in order to increase his load capacity, needed for his full recovery.
  • The strength conditioning training was based on isometric exercises (ex. Spanish squat) during the pre-training phase, according to the program proposed by J. Cook, integrated with isoinertial training with Desmotec D.full, in order to improve the subject’s eccentric response which is fundamental in the jumps landing phase, an high impact and frequent situation while palying volleyball.


Gender Male
Age 22
Job Volleyball Player



Returning to sport activity, recovering from rutulean tendinopathy


Functional recovery with Physiotherapist
Opened and closed kinetic chain exercises Isometric, dynamic, low speed
Lower Limbs Isometric, Isotonic


Isoinertial Protocol Start
Device Desmotec D-Full
Test Balance, Isometric Max, First Approach, Power Max


Isoinertial Protocol next steps
Device Desmotec D-Full
Test/exercise Bilateral Squat,

Split Squat.

Hip Hinge,

Side Squat,

Inertia Medium, High

(Medium, Large, Pro)


Spanish Squat different angles, 30 secs. Dor 5 repetitions, 3 times per day, Squat depth based on subject’s pain. Volleyball pre-training.


Bulgarian Squat, 3 slow series, 10 repetitions, focus on tension. Squat depth based on the subject’s pain. Volleyball pre-training.



Bilateral Squat, complete extension


Bilateral Squat, not complete extension


Iso Step-Up

Iso Split Squat


Week 1 Sessions n.3
Series 3
Repetitions 15
Speed Low
Rec. time 60 sec. minimum
Inertia Medium – High
Target Learning the exercise


Week 2-3 Sessions n.6
Series 3
Repetitions 10 + 3
Speed Medium – High
Rec. Time 60 secs. minimum
Inertia Medium-High
Target Ipertrophy – Power
Week 4-5 Sessions n.6
Series 5
Repetitions 5+3
Speed Max
Rec. Time 90 secs. minimum
Inertia Medium
Target Develpment Power and Resistence


Initial Bipodalic Isometric Test, Squat 120°, 15 seconds.
Idem for Monopodalic squat


Max power TEST 02.12.2019 13:26
 Device: D11 Full
 Pattern: Squat Bipo
 Method: repetition
 Repetitions: 10
 Inertia: 0,6 kg/m2


Improved power peak in concentric work (1282w to 1414w) and eccentric work (1198 to 1734w), diminished variable in concentric work (from 25% to 5%) and eccentric work (from 23% to 13%)



Max Power test TEST05.03.2020 11:51
 Device: D11 Full
 Pattern: Squat Bipo
 Method: repetition
 Repetitions: 10
 Inertia: 0,6 kg/m2






  • The results were excellent, the subject felt his post- training and post-game pain gradually diminishing. The pain was almost unbearable before the treatment.
  • No cases of Tendinean Algia after the Isoinertial
  • Feeble pain (2-3 on a 10 scale) during isotonic monopodalic exercises At the end of the treatment, an exercises program was provided to the athlete, based on 5 sessions per week, to perform before training.
  • We were not able to perform the final isometric tests because of the COVID-19 emergency.

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