7 lines (6 with data), 253 Bytes

f071a 0 128 0 9:51:00 23/08/1987
# Start time=09:51
# First beat=09:54:31.343
# <age-range>: 55-59, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.476,  <RR-high-limit(sec)>: 1.023
# Note: recording with a timing signal, flutter-compensated