Effect of spaceflight on the human body of muscle fibre prominent in muscles also change. Slow twitch endurance fibres used to maintain posture are replaced by fast twitch rapidly contracting fibres that are insufficient for any heavy labour. Advances in research on exercise, hormone supplements and medication may help maintain muscle and body mass. Bone metabolism also changes. Normally, bone is laid down in the direction of mechanical stress. However, in a microgravity environment there is very little mechanical stress. This results in a loss of bone tissue approximately 1.5% per month especially from the lower vertebrae, hip and femur. Due to microgravity and the decreased load
Bone exercise monitor on the body stimulating bone growth by adding new bone and by improving its architectural strength. The Bone Exercise Monitor is worn on the hip during the daily chores or during exercise. The monitor measures the accelerations and decelerations of the body and analyzes the results. The daily (and weekly) achieved bone exercise is shown on the monitor's display. Bone exercise monitor A bone exercise monitor is an instrument which is used to measure and analyze the bone strengthening qualities of physical activity and to help in prevention of osteoporosis with physical activity and exercise. The bone strengthening quality of