Influence of group training frequency on arterial stiffness in elderly women
- 341 Downloads
We evaluated the effects of different training frequencies on arterial stiffness. 77 elderly women (mean 68.8 years and 7.0 SD) were divided into two training (1DW and 2DW) and a CONTROL group (n = 23). 1DW (n = 29) participated in 90-min group training once a week for 12 weeks, while 2DW (n = 25) attended twice a week. Each training program included recreational activities, six to eight resistance exercises for circuit training, and leg exercises for chair-based exercise. Brachial systolic and diastolic blood pressures and the brachial-to-ankle pulse-wave velocity (baPWV) were obtained in the supine position. Muscle strength and ventilatory threshold were also measured. After the training program, a reduction (P < 0.01) in baPWV was observed in 2DW (−7.8 ± 7.0%) but not in 1DW (−1.5 ± 7.5%) and CONTROL (−0.4 ± 7.5%) without any changes in other measurements. The results suggest that, in order to improve arterial stiffness, an exercise frequency of at least twice a week is to be recommended for elderly.
KeywordsGroup training Training frequency Pulse-wave velocity Arterial function Elderly men
We thank David A House, Katherine Osgood, Saori Maruoka, Junko Hiroe, Kazuya Harada, Eri Yoshida, and Nao Okumura for their technical assistance in this study. This study was supported by a Grant-in Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture of Japan (15700441).
- American College of Sports Medicine, American Heart Association Joint Position Statement (1998) Recommendations for cardiovascular screening, staffing, and emergency policies at health/fitness facilities. Med Sci Sports Exerc 30:1009–1018. doi: 10.1097/00005768-199806000-00034 CrossRefGoogle Scholar
- Liao D, Arnett DK, Tyroler HA, Riley WA, Chambless LE, Szklo M et al (1999) Arterial stiffness and the development of hypertension. The ARIC study. Hypertens 34:201–206Google Scholar
- Maeda S, Miyauchi T, Kakiyama T, Sugawara J, Iemitsu M, Irukayama-Tomobe Y et al (2001) Effects of exercise of 8 weeks and detraining on plasma levels of endothelium-derived factors, endhothelin-1 and nitric oxide, in healthy young humans. Life Sci 69:1005–1016. doi: 10.1016/S0024-3205(01)01192-4 PubMedCrossRefGoogle Scholar
- Matsui Y, Kario K, Ishikawa J, Eguchi K, Hoshide S, Shimada K (2004) Reproducibility of arterial stiffness indices (pulse wave velocity and augmentation index) simultaneously assessed by automated pulse wave analysis and their associated risk factors in essential hypertensive patients. Hypertens Res 27:851–857. doi: 10.1291/hypres.27.851 PubMedCrossRefGoogle Scholar
- Miura H, Aoki S (2005) Influence of low-intensity circuit training on artery stiffness in female [in Japanese, English abstract]. Jpn J Phys Fit Sports Med 54:205–210Google Scholar
- Stiggelbout M, Popkema DY, Hopman-Rock M, De Greef M, Van Mechelen W (2004) Once a week is not enough: effects of a widely implemented group based exercise programme for older adults; a randomized controlled trial. J Epidemiol Community Health 58:83–88. doi: 10.1136/jech.58.2.83 PubMedCrossRefGoogle Scholar