PURPOSE: To demonstrate the effect that the presence of the metabolic syndrome (MetSyn) has on the physical performance on American Football Players of a college team in México
METHODS: Seventy six players were included in the study, thirteen had MetSyn (21.7±1.5 yrs) and sixty three were not diagnosed with MetSyn (21.8±1.5 yrs). In order to establish a statistical significance between the physical performance and MetSyn, the data was analyzed in two different ways: With MetSyn (WMS) or absence of MetSyn (AMS) and by groups of similarity of Body Mass and type of execution in the field Group 1 Offensive and Linemen (OL and DL) and Tight ends (TE). Group 2 Running Backs (RB), Linebackers (LB) and Quarterbacks (QB). Group 3 Wide Receivers (WR), Kickers (K), Strong Safeties (SS) and Cornerbacks (CB). The physical performance tests that were measured were: Maximum strength, explosive strength, Isometric hand strength, muscular resistance, power of upper and lower body, lumbar flexibility, agility, speed and cardiovascular resistance
RESULTS: The physical performance tests between WMS revealed better performance in maximum upper body strength 293.46(56.54) against the ABS group 246(36.45), explosive strength with Snatch 165(135-205) against 155(105-205) and Jerk 228.08(31.46) against 204.29(34.70) tests, as well as muscular resistance test 9.5(1-25) against 3(0-26) repetitions. Lower athletic performance was shown in the WMS group in the speed 5.6(5.23-7.12) sec against 5.21(4.75-822) , agility 8.84(7.1-9.79) seconds against 5.21(4.75-822) and cardiovascular resistance 13.32(10-18) against 11.16(9.06-17.11) min.
CONCLUSIONS: The weight and BMI and the body fat percentage were variables that presented significance difference in the WMS group, coinciding with the authors who affirm that the weight and the percentage of fat have an influence on the physical performance. The physical performance tests in the WMS group revealed better performance in maximum chest force, explosive strength with Snatch and Jerk tests, as well as muscular resistance suggesting a possible favorable relationship to presence MetSyn. We observed a lower athletic performance in the tests of speed, agility and cardiovascular resistance in the players with the presence of MetSyn negatively relating the MetSyn with these motor skills.