Relationship of continuous and intermittent maximal aerobic speed to CrossFit® WOD Karen performance in physically active subjects
Keywords:
exercise, cardiorespiratory fitness, athletic performanceAbstract
Introduction: CrossFit® is at present the most widely known high-intensity functional training exercise program. However, no studies are available describing the relationship of continuous maximal aerobic speed (MAS-C) and intermittent maximal aerobic speed (MAS-I) to performance in this training mode.
Objective: Determine the relationship of continuous and intermittent maximal aerobic speed to CrossFit® WOD Karen performance in physically active subjects.
Methods: Fourteen men and six women participated in the study. The tests were performed in three days with a 24-48 hours separation between them. Continuous maximal aerobic speed was evaluated with the 20-m shuttle run test or Course Navette test and intermittent maximal aerobic speed with the 30-15 ITF (Intermittent Fitness Test). Finally, performance of the CrossFit® WOD Karen program was assessed through 150 medicine ball throws to the wall in as little time as possible. The data obtained were analyzed with the PSPP statistical package, using a confidence level of 95% and a p-value of 0,05.
Results: The results obtained show a normal distribution (p > 0,05) for both sexes, except for CrossFit® WOD Karen time in men (p < 0,05). The correlation coefficient suggests that continuous maximal aerobic speed exhibited a high association in women (r = -0,61) and a moderate association in men (r = -0,44), whereas intermittent maximum aerobic speed exhibited a very high association in women (r = -0,76) and men (r = -0,78), but was only significant with intermittent maximum aerobic speed in men (p < 0,01).
Conclusion: A better intermittent aerobic physical aptitude is more influential on CrossFit® WOD Karen performance in physically active subjects.
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