Prepare for 100 meters ice swimming day 5 speed workout in swimming pool

125 meters  3 minutes
50 meters 49.80 sec
2 minute rest
 50 meters      52 sec
2 minute rest
50 meters            54 80 sec
2 minute rest
  50 meters              1.02 sec
2 minute rest
    50 meters           1.05 sec

free swimming after 5-minute rest and 12-minute sauna 6-minute passthrough exercise for shoulders mobility