Heart rate was measured immediately before, immediately after, and 1 min after each SJFT bout using a cardiofrequencimeter (Polar S810i heart rate monitor, Polar Electro OY, Kempele, Finland).
Heart rate was measured immediately before, immediately after, and 1 min after each SJFT bout using a cardiofrequencimeter (Polar S810i heart rate monitor, Polar Electro OY, Kempele, Finland).