We measured all the physical activity of 24 hours with the daily physical active mass and activity intensity of one day using pedometer attached with accelerator sensor, and also evaluated the orientation, memory function, calculation, speech, immedia ...
We measured all the physical activity of 24 hours with the daily physical active mass and activity intensity of one day using pedometer attached with accelerator sensor, and also evaluated the orientation, memory function, calculation, speech, immediate recall by the Korean modified MMSE(mini mental status examination). The subject of this study was older women aged from 70 to 80 whose MMSE score was over 24, and grouped into combined training group(n=20) and a daily active control group(n=20). The combined training program was composed of aerobic exercise which is mainly walking and balancing, and resistance exercise by free weight, as once a 60 minute, 3 times a week for 24 weeks. The intensity of aerobic exercise was 40~55% in 1~8 week, 55~65% in 9~16 weeks and 65~75% in 17~24 weeks according to Heart rate reserve(HRR), and in resistance exercise we established the 3~10 round repeated number as optimum levels by the modified method of Westcott et al(1999).
The results were as follows :
1. In control group, no changes of MMSE, bone mineral density(BMD) and bone metabolic marker were seen. The upper and lower limbs muscle mass, maximal step length and flexibility were significantly decreased, and the 10m maximal walking time, lateral moving distance(LMD) and anteroposterior moving distance(AMD) were significantly increased.
2. In combined training group, the MMSE, VO2max, lower limbs muscle mass and trochanter were significantly increased, and the urine Deoxypyridinoline (DPD) was decreased. Also, the risk factors of fall such as maximal step length, 10m maximal walking time, flexibility, LMD and AMD were significantly improved.
3. The physical active mass, VO2max/weight, the before and after delta value of tronchanter showed positive correlation respectively, but the before and after delta value of LMD and AMD showed negative correlation.
4. The before and after delta value of the forearm muscle volume and femoral muscle volume showed significantly positive correlation, but the before and after delta value of LMD and AMD showed negative correlation.
By all accounts, the daily physical active mass and activity intensity of one day analysed by the pedometer attached with accelerator sensor in controlled group of older women aged 70~80 acts no effects on the MMSE, risk factor of fall, VO2max, muscle mass and whole bone mineral density.
In combined training group, over 3METs physical active mass was increased from 8 minutes to 46.8 minutes, 5.85 times as much. Therefore it showed effective on the improvement of health reliance fitness by improving the MMSE, muscle mass, VO2max, and preventing the reduction of BMD and fall.
Considering the aging society in the future, it would be necessary to study about the subjects of latter part of the older people.