7 lines (6 with data), 247 Bytes

e051a 0 128 0 9:16:00 28/02/1988
# Start time=09:16
# First beat=09:21:16.046
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.523,  <RR-high-limit(sec)>: 1.281
# Note: reel-to-reel recording, not flutter-compensated