Valentin Lebedev
Diary of a Cosmonaut

Mother’s birthday. Asked them to call and congratulate her.

An interesting and pleasant day: our proposal for a joint astrophysics experiment using onboard and ground-based instruments was realized. We conducted it — and quite cleanly. Finished work late at night. Before bed, we drank juice to mother’s health and watched video recordings. Life goes on like a submarine: each compartment has its own business, you can’t go anywhere, all day long there’s nothing but work and station chores. You can feel that the ground has limited the circle of people in contact with us. They’re protecting us.

On the comm is the head of the medical group: “Today I’m going to tell you only pleasant news. The exercise specialists rate your bicycle ergometer sessions as good; they consider the workouts for both of you correct, sufficient, and even slightly exceeding the norm. You pedal at loads up to 1,350 kgm/min, which is comparable to riding a bicycle uphill at a 30-degree incline. Each workout amounts to 350-400 kcal in energy expenditure. On the treadmill, the load for both of you has also increased and in recent sessions ranges from 3,500 to 5,000 meters.” This load is less than on Earth by as much as my weight exceeds the force of the bungee cords pulling me to the treadmill. My blood pressure now is 134/54 — he says it’s almost indistinguishable from the values at home before the flight. The minimum matches exactly, and the maximum is slightly higher. Resting pulse is 85, after exertion 158. So they’re pleased.