区域1，强度低至几乎不算运动，适用于由于前几天训练使您极度疲劳的日子，适用于高强度间歇跑之间的“主动恢复”。
Zone 1 is so light it barely qualifies as exercise, and is appropriate on days when you are especially fatigued from prior days' running and for "active recoveries" between high-intensity intervals.
区域1，强度低至几乎不算运动，适用于由于前几天训练使您极度疲劳的日子，适用于高强度间歇跑之间的“主动恢复”。
Zone 1 is so light it barely qualifies as exercise, and is appropriate on days when you are especially fatigued from prior days' running and for "active recoveries" between high-intensity intervals.
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