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      Triple-hop distance as a valid predictor of lower limb strength and power.

      Journal of athletic training
      Adolescent, Adult, Female, Humans, Leg, physiology, Male, Muscle Contraction, Muscle Strength, Muscle, Skeletal, Posture, Soccer, Statistics as Topic

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          Abstract

          Hop tests are functional tests that reportedly require strength, power, and postural stability to perform. The extent to which a triple-hop distance (THD) test measures each of these characteristics is relatively unknown. To determine the extent to which the THD predicts performance on clinical measures of power, strength, and balance in athletic individuals. Within-subjects correlational study. Station-based, preseason screening of athletes. Forty National Collegiate Athletic Association Division I-AA men's and women's soccer student-athletes (20 women, 20 men; age = 20.0 +/- 1.4 years, height = 172.8 +/- 9.2 cm, mass = 71.9 +/- 8.9 kg). As part of a comprehensive preseason screening of athletes, participants completed the Balance Error Scoring System (BESS) test, 3 trials each of the THD and vertical jump, and 5 repetitions each of concentric isokinetic quadriceps and hamstrings strength testing at 60 degrees /s and 180 degrees /s. Bivariate correlations and linear regression analyses determined the extent to which THD (cm) predicted each of the strength, power, and balance measures. Maximal vertical jump height (cm), total BESS error scores, and quadriceps (Quad(60), Quad(180)) and hamstrings (Ham(60), Ham(180)) isokinetic maximum peak torque (Nm) at 60 degrees /s and 180 degrees /s, respectively. Triple-hop distance was a strong predictor of vertical jump height, explaining 69.5% of the variance (P < .01). THD also predicted 56.7% of the variance in Ham(60) (P < .01), 55.5% of the variance in Ham(180) (P < .01), 49.0% of the variance in Quad(60) (P < .01), and 58.8% of the variance in Quad(180) (P < .01). No relationships between THD and BESS scores were noted. Triple-hop distance is a useful clinical test to predict an athlete's lower extremity strength and power. Although THD was not a predictor of static balance, further research is needed to examine its relationship with more dynamic balance tests.

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          Author and article information

          Journal
          18345338
          2267326
          10.4085/1062-6050-43.2.144

          Chemistry
          Adolescent,Adult,Female,Humans,Leg,physiology,Male,Muscle Contraction,Muscle Strength,Muscle, Skeletal,Posture,Soccer,Statistics as Topic

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