Table 3. The intra-group indices of waveform similarity for each muscle during both rowing conditions. Muscle SE FE Gastrocnemius Lateralis (GL) .65 (.08) .64 (.07) Biceps Femoris (BF) .65 (.12) .75 (.12) Rectus Femoris (RF) .68 (.12) .72 (.14) Erector Spinae (ES) .74 (.13) .81 (.06) Latissimus Dorsi (LD) .68 (.16) .76 (.05) Brachioradialis (BR) .73 (.09) .73 (.05) Triceps Lateralis (TR) .67 (.13) .66 (.06) Deltoid Medius (DM) .63 (.06) .75 (.09) SE, slide ergometer; FE, fixed ergometer.