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・体幹強化
体幹周りに緊張感を走らせ泳ぐ
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up:100m
s-s1:50mx6 2'15
p-s1:50mx6 2'15
d-s1:50mx6 2'15
k-fr:75m×4 1'30
s-fr:100m×6 (1-2:S1,3-4:Fr,5-6:IM)
down:100m
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total:2,000m
s:swim k:kick d:drill