Figure 2. The fraction of total carnitine (∼22 mmol (kg dry muscle)⁻¹, not including long-chain acylcarnitine) represented as free (filled) or acetyl carnitine (open) in human vastus lateralis muscle at rest and following 4 min (or 10 min at 40, 55 and 75%V˙_O2,max) of exercise on a cycle ergometer at various exercise intensities.

Values are a review of results taken from 4 papers (Harris et al. 1987; Sahlin, 1990; Constantin-Teodosiu et al. 1991, 1992).