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Ken Roberts - - Cross Country Skiing what's here
see also: more ideas + reports | public discussion | more on Classic techniques
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more . . .see also
concept words: ski skiing cross country cross-country xc snow skier skiers skis nordic roberts report reports learn learning classic: stride striding diagonal kick glide technique: techniques technical theory theories theoretical physics physical biomechanics biomechanical mechanics mechanical model models concept concepts idea ideas |
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