The average age allocation of the world population is continuously changing. The increasing
number of elderly people and a contemporaneous decrease in the figure of
younger persons is a tendency factor around the globe. In Finland it is estimated that
by 2050, the number of citizens over 65 years old will represent about 30% of the total
population with a total amount over 1,5 million (Website of Stat.fi 2021).
Figure 1 illustrate the age structure of population in Finland on 31 December 2019,
and the relative comparison on 1917.
Although the process of aging is a triumph for the humanity, as stated by World Health
Organization (2007), it is also a challenge to society. In fact, not only advantages are
related to higher life expectancy.
More specifically, a degradation in both physical and cognitive domains of the individuals,
which also include the probability in the occurrence of age-related injuries.
Furthermore, decrease in muscle strength rather than coordination in the lower extremities
lead to a higher risk of falling among elderly (Thomas et al. 2019).
