Cori&;s cycle is concerned with transpo of

It is the process in which glucose is conveed to lactate in the muscle, and in the liver this lactate is reconveed into glucose actively contracting muscle, pyruvate is reduced to lactate which may tend to accumulate in muscle. The muscle cramps, often associated with strenuous muscular exercise, are thought to be due to lactate accumulation. To prevent lactate accumulation, the body utilizes Cori&;s cycle.Ref: DM Vasudevan, 7th edition, page no: 114