In this week's podcast, Joe answers a wide variety of questions specifically directed towards vertical jump performance. Questions include the following topics: The simple test that will help you determine the "weak link" in your vertical jumping ability; Joe's "skinny calf" theory gets challenged by a listener; Volume recommendations for jumps and plyos; Biggest plyometric training mistakes; Joe D's Top 5 dynamic-effort strength exercises for improving the vertical jump; Joe D's personal experience using isokinetic machines for power development; The theory behind static stretching the hip flexors before testing your vertical jump...plus a new "pre-jump" stretching recommendation; Analyzing your Box Jump performance compared to your Vertical Jump performance; Is it possible to make significant improvements in vertical jump height or is it mainly genetic?