It does not seem there where any follow up research available for public viewing but medical study can take long periods of time and have lots of ethics to consider.
Infirmity is also linked to the bone degeneration process that happens, can be slowed with exercise and weight bearing activities.
NAD also being used in the Krebs cycle and Electron transport chain it could very well lead to problems.
retirement age unlikely due to retirement not just being due to the break down of muscle but the degeneration of tissue and mental cognitive function.
that last one is difficult to answer as it depends on the person. Do they have medical conditions . But if there was an increase in muscular strength it would reduce the risk of injury in elderly because of the loss of strength can be one factor that does impact on injury rate.
sorry I can't provide links at this stage.
Infirmity is also linked to the bone degeneration process that happens, can be slowed with exercise and weight bearing activities.
NAD also being used in the Krebs cycle and Electron transport chain it could very well lead to problems.
retirement age unlikely due to retirement not just being due to the break down of muscle but the degeneration of tissue and mental cognitive function.
that last one is difficult to answer as it depends on the person. Do they have medical conditions . But if there was an increase in muscular strength it would reduce the risk of injury in elderly because of the loss of strength can be one factor that does impact on injury rate.
sorry I can't provide links at this stage.