Relationship between the recognition error of dynamic postural control ability and the extent of exercise in middle-aged older women

Purpose This study aimed to clarify the relationship between recognition error of dynamic postural control ability and the extent of exercise middle-aged older women. Methods The study participants were 35 middle-aged older women (60.3 ± 9.1 years) exercising at a health promotion facility. Predicted and measured values of the functional reach test (FRT) and the maximum step length (MSL) were used to measure dynamic postural control ability. The recognition error, defined as the difference between the predicted and measured values of FRT and MSL, was evaluated. The extent of exercise was quantified based on exercise intensity in the previous 3 months, exercise frequency (times/week), exercise time (minutes/time), and exercise intensity (METs/time) for each resistance exercise, aerobic exercise (AE), and control exercise were calculated. Results The measured and predicted values were the same in the FRT, whereas the measured value was smaller than the predicted value and overestimated in MSL. In addition, when the factors affecting recognition errors of FRT and MSL were examined, significant associations were found between the exercise time of RE and AE for FRT and between the measured value and exercise intensity of RE for MSL. Conclusion The exercise time of AE and the exercise intensity of RE may contribute to the exertion of appropriate dynamic postural control ability.