FAQs, Love
This is usually the result of a slow arm swing. You can get some rubber bands and put 5 together. Slip one of each of the 2 sets of rubber bands around your shoe then with wrists down pull each of them up to your ears very quickly . This will increase your arm swing....
FAQs, Love
This is usually a problem in strength in the glutes, hamstrings and sometimes plyo area. Go to my website and choose some exercises in those areas and you will begin to see better results. Also it may be that you are not getting your arms all the way at the beginning...