Médecine du Sport SRBMPR/SOFMER /ESPRM


Le 16/10/2021 de 09:00 à 10:30


Retour Session

CO031

Étude de la corrélation entre les tests fonctionnels du genou et l'évaluation isocinétique de la force musculaire et de la proprioception, une étude pilote.

Marine Rolland (Caen, France), Henri Guermont (Caen, France), Emmanuel Reboursière (Caen, France), Antoine Desvergée (Caen, France), Antoine Gauthier (Caen, France), Joffrey Drigny (Caen, France)

Objective : This cross-sectional study aimed to evaluate the association between functional testing, consisting of hop tests, and isokinetic assessment of strength and proprioception in both performance and between-limb imbalance.
 

 

Material / Patients and Methods : Twenty healthy young adults (age= 26.5 ± 4.1 years) were included. The single hop test [SHT], triple hop test [THT] and crossover hop test [CHT] for distance were measured. The limb symmetry index (LSI) was calculated as non-dominant/dominant *100% and a LSI >90% was considered adequate.
Knee isokinetic test was assessed in the seated position. Strength was measured at 60°.s-1 and 240°.s-1 (concentric).For proprioception, the joint position sense (JPS) and the threshold to detection of a passive motion (TDPM) were measured. The absolute error (AE, °, difference between targeted and reproduced angle) and between-limb absolute difference (AEdiff = AEnon-dom- AEdom) were calculated.

Results : Performance on hop tests was associated with extensor peak torques at 60°.s-1 (r= .56 - .70, p<.001) and 240°.s-1 and flexor peak torque at 240°.s-1 (r= .33- .35, p<.050).  Regarding limb symmetry on hop tests, AEdiff for the JPS was significantly negatively correlated with all the LSIs (r= -.53 - -.70, p<.001). Individuals having a worst JPS on the non-dominant leg compared to the dominant leg had a 5.3-fold higher risk of having LSI <90% for, at least, one hop test.
 
 

Discussion - Conclusion : The results of this study indicate that, while functional test performance is correlated with isokinetic knee muscle strength, the functional limb symmetry is most correlated with isokinetic knee-joint proprioceptive symmetry.

Keywords : Proprioception, Knee joint, Isokinetics