Title

Effects of descending stair walking on health and fitness of elderly obese women

Document Type

Journal Article

Publisher

Lippincott Williams and Wilkins

School

School of Medical and Health Sciences / Centre for Exercise and Sports Science Research

RAS ID

24929

Comments

Originally published as:

Chen, Trevor C., et al. "Effects of descending stair walking on health and fitness of elderly obese women." Medicine & Science in Sports & Exercise 49.8 (2017): 1614-1622. doi:10.1249/MSS.0000000000001267

Original article available here.

Abstract

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%), and many of functional physical fitness measures 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.

DOI

10.1249/MSS.0000000000001267

Access Rights

free_to_read

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