SL and its changes (ΔSL) in RVCM and LVCM. (A and B) Averaged traces of SL (A) and normalized ΔSL (B) in LVCM (n = 102, n = 20, black line) and RVCM (n = 170, n = 20, gray lines). (C–F) Summaries comparing the diastolic SL (C), ΔSL (D), and the percent ratio of ΔSL/diastolic SL in each cell (E). (F–H) Time to relax₁₀, relax₅₀, and relax₉₀ representing the time from peak to 10, 50, and 90% relaxation of ΔSL, respectively. Note the longer relaxation times in RVCM than LVCM. All statistical tests performed using nested t test. The gray dot means the measured value of individual cells, and the block dot represents the average of the measured value for each animal. The black line in the column means average of measured value.