[Association between two different types of strangling and intraocular pressure variation in jiu-jitsu athletes].

Purpose: To verify the association between two different types of strangling with intraocular pressure variation in jiu-jitsu athletes.

Methods: An observational study was performed on 9 athletes of jiu-jitsu, with at least 6 month of training, male, aged 20 to 30 years, without any physical and eyeball lesions. Associations between intraocular pressure and Cross Choke from the guard strangling (E1), and E2 - Cross Choke from mount strangling were gotten. Intraocular pressure was determined by using Perkins tonometer, at first in the absence of physical exercise over the last 24 hours and after each strangling. Then it was carried out the intraocular pressure measure at each 3 minutes, during 12 minutes of exercise recovery (R1, R2, R3, and R4) keeping the athletes lied down. Statistical analysis was done using ANOVA test and Bonferroni post-test.

Results: Meaningful reduction of both eyes intraocular pressure occurred at the E2 situation comparing to the E1 situation at all exercise recovery measures: R1 (OD: 8.22 +/- 1.39 vs.11.33 +/- 2.00 / OE: 8.55 +/- 1.23 vs. 11.88 +/- 1.90), R2 (OD: 8.44 +/- 1.87 vs.10.22 +/- 2.53 / OE: 9.00 +/- 1.80 vs. 10.44 +/- 2.35), R3 (OD: 8.44 +/- 1.74 vs.9.78 +/- 2.54 / OE: 8.55 +/- 1.42 vs. 10.33 +/- 1.93) all with p<0,01 e R4 (OD: 8.88 +/- 2.08 vs.9.55 +/- 2.87 / OE: 9.11 +/- 1.53 vs. 10.44 +/- 2.18) with p<0.05. Meaningful IOP reduction (p<0.05) was observed at the R1 moment of E2 strangling (OD: 10.77 +/- 1.92 vs.8.22 +/- 1.39 / OE: 11.44 +/- 1.94 vs. 8.55 +/- 1.23).

Conclusion: There is association between intraocular pressure and jiu-jitsu strangling exercises, with intraocular pressure reduction.