Two questions: had these bursts same W(=FS) over time or proportionally less due to stops? Iow, slow-fast vs normal or slow-normal vs normal? Did they measure

Two questions: had these bursts same W(=FS) over time or proportionally less due to stops? Iow, slow-fast vs normal or slow-normal vs normal? Did they measure energy consumption for replacing short-term resources like creatine phosphate, glucose, etc? Instant oxygen consumption probably doesn’t paint the whole picture. Blood tests obviously required?