Introduction. It is commonly known that the process of aging causes numerous barriers as far as social activity routines are concerned. Aim. The purpose of this study is to evaluate muscle strength on a sample of a chosen group of women above 50 years of age in Kujawsko-Pomorskie Voivodeship. Material and methods. 3413 women, aged 50-80 years participated and were analyzed. They were divided into six age groups. Results and conclusions. All women were subjected to three muscle strength tests. The results of the “30-second Chair Stand”, “Arm Curl” and “8-foot Up and Go” tests showed the decrease of muscle strength in women, depending on age from 18.3 repetitions to 15.3 repetitions (“30-second Chair Stand”) and from 21.6 repetitions to 17.1 repetitions (“Arm Curl”). In the “8-foot Up and Go”, which is a complicated test evaluating both explosive muscle strength and coordination, the time necessary for performing it elongates from 5.3 seconds in the youngest group to 6.3 seconds in the oldest group. Test results indicate unmistakably that muscle strength diminishes with age. Secondly, muscle strength reduction is equally related to both upper and lower limbs. 8-foot Up and Go test, which may also be used to evaluate the risk of falling, shows that it is of great importance to shape this ability since it declines in the quickest way.

Key words: muscle power, physical activity, Senior Fitness Test, elderly women.