PT Journal AU Kovacova, L Stejskal, P Neuls, F Elfmark, M TI Adherence to the aerobics exercise program in women aged 40 to 65 SO Acta Universitatis Palackianae Olomucensis. Gymnica PY 2011 BP 55 EP 63 VL 41 IS 2 DI 10.5507/ag.2011.013 DE lifestyle; physical activity; aerobics; intervention program; motivation AB Background: The analysis of exercise adherence belongs among the basic criteria for evaluation of the efficiency of intervention exercise programs. Objective: The aim of this study was to analyze the adherence of participants to the half-year dance and step aerobics program. Methods: The experimental group consisted of 47 women aged 40 to 65 years old who exercised three times per week for a period of six months. The participant's attendance sheets and their answers to two questions from the checklist were used for the evaluation of their adherence to the workouts. Results: The mean value of the adherence of the whole group to the intervention exercise program was 70.43%. Mean values of the group gradually decreased from 85.39% to 68.35% during the first four months of the intervention exercise program. In the last two months of the intervention, the adherence continued to decrease when the average values of their attendance were slightly under 60%. Compared to other months, these differences were statistically and logically significant. Conclusions: Reasons for different or possibly decreasing degrees of adherence to long-lasting intervention exercise programs are mostly objective, e.g. health (55.17%), family (13.70%) and work (22.41%). Other reasons (8.62%) are based on psychological factors (motivational and personal characteristics), the offerings and attractiveness of the activities, which are closely associated to the current health status and movement experience of the individual. Even the group form of exercise does not guarantee a high rate of the participant's adherence. ER