HMS, BM 2022 HSC 1 MC An athlete's body is using the lactic acid energy system. What is the likely duration of their performance while using this system? 6 seconds 60 seconds 6 minutes 60 minutes Show Answers Only \(B\) Show Worked Solution Considering all options: Option A: 6 seconds – Too short, this would be ATP-PCr system × Option B: 60 seconds – This fits within the lactic acid system’s duration \(\checkmark\) Option C: 6 minutes – Too long, would have shifted to primarily aerobic system × Option D: 60 minutes – Far too long, this is deeply into aerobic system × \(\Rightarrow B\)