Effects of Descending Stair Walking on Health and Fitness of Elderly Obese Women

被引:54
作者
Chen, Trevor C. [1 ]
Hsieh, Chung-Chan [1 ]
Tseng, Kuo-Wei [2 ]
Ho, Chin-Chiao [1 ]
Nosaka, Kazunori [3 ]
机构
[1] Natl Taiwan Normal Univ, Dept Phys Educ, Taipei, Taiwan
[2] Univ Taipei, Dept Exercise & Hlth Sci, Taipei, Taiwan
[3] Edith Cowan Univ, Sch Med & Hlth Sci, Ctr Exercise & Sports Sci Res, Churchlands, WA, Australia
关键词
ECCENTRIC EXERCISE; MUSCLE DAMAGE; INSULIN RESISTANCE; BLOOD LIPID PROFILE; FUNCTIONAL PHYSICAL FITNESS; BONE MINERAL DENSITY; BLOOD PRESSURE; SEDENTARY YOUNG-WOMEN; ECCENTRIC EXERCISE; MUSCLE DAMAGE; CARDIORESPIRATORY FITNESS; RISK-FACTORS; ENERGY-COST; STRENGTH; RESPONSES; PEOPLE; ADULTS;
D O I
10.1249/MSS.0000000000001267
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
Purpose: Eccentric exercise training produces positive fitness and health outcomes, but whether this is also the case for descending stair walking (DSW) is unknown. This study investigated the hypothesis that DSW would improve insulin sensitivity, lipid profiles and physical fitness better than ascending stair walking (ASW). Methods: Elderly (>= 60 yr) obese women were placed to either DSW or ASW group (n = 15 per group). An elevator was used to eliminate ascending stairs for DSW, and descending stairs for ASW. Descending stair walking and ASW were performed twice a week for 12 wk by increasing the repetitions gradually. Overnight fasting blood samples were taken 3 d before the first training session and 4 d after the last training session, and analyzed for insulin sensitivity and lipid profile markers. Resting HR, systolic blood pressure, and diastolic blood pressure, bone mineral density, knee extensor maximal voluntary isometric contraction strength and several functional physical fitness measures were taken before and after the intervention. Results: Average HR during DSW(88.6 +/- 7.8 bpm) was lower (P < 0.05) than that of ASW (113.7 +/- 10.9 bpm). Resting HR (-10%) and systolic blood pressure (-9%) decreased greater after DSW than ASW(-4% for both), and bone mineral density increased (6%) only for DSW(P < 0.05). Decreases in serum triacylglycerols, total and low-density lipoprotein cholesterols, glucose, insulin, homeostasis model assessment and whole blood glycosylated hemoglobin, and increases in high-density lipoprotein cholesterols were greater (P < 0.05) after DSW than ASW. Maximal voluntary isometric contraction strength increased greater for DSW(34%) than ASW(15%), andmany of functional physical fitnessmeasures showed greater (P < 0.05) improvement for DSW than ASW. Conclusions: These results supported the hypothesis and suggest that DSW is an effective exercise intervention for elderly obese women to improve their health and fitness.
引用
收藏
页码:1614 / 1622
页数:9
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