What specific ratio of carbohydrates to protein is ideal for a post-workout recovery shake for cyclists engaging in high-intensity interval training, and how does this ratio impact the bodys ability to repair and rebuild muscle tissue on the cellular level? Are there any differences in protein requirements for cyclists with varying levels of muscle mass or body composition, and if so, how can these differences be taken into account when devising a post-workout nutrition plan? How might the type, amount, and timing of protein intake impact an athletes overall training adaptations and progression over the course of a competitive season, and are there any potential drawbacks to overemphasizing protein intake in a cyclists diet?