Calcif Tissue Int. 1991 Aug;49(2):112-5.

Influence of brisk walking on the broadband ultrasonic attenuation of the calcaneus in previously sedentary women aged 30-61 years.

Jones PR, Hardman AE, Hudson A, Norgan NG.

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Department of Human Sciences, University of Loughborough, Leicestershire, UK.

Abstract

The amount and type of exercise needed to maintain or increase bone density in women is unclear. The purpose of the present study was to examine the influence of brisk walking on broadband ultrasonic attenuation (BUA) values for the calcaneus in formerly sedentary women aged 30-61 years (mean 44). Twenty-five women followed the program of brisk walking for 1 year and 15 acted as controls. The walkers completed an average (SEM) of 159 (46) minutes/week of brisk walking at a speed of 1.72 (0.05) meters/second, i.e., about 16-18 km/week. Broadband ultrasonic attenuation was determined at baseline and after 1 year. Analysis of variance showed that values were increased (P less than 0.05) for the walkers relative to controls [walkers 103.3 (4.9) versus 116.1 (3.8) dB/MHz; controls 103.6 (5.5) versus 99.6 (5.4) dB/MHz]. We conclude that, in formerly sedentary women, a modest program of a widely acceptable form of exercise, brisk walking, can provoke an increase in this sensitive index of bone condition.

PMID:: 1913289; [PubMed - indexed for MEDLINE]

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Influence of brisk walking on the broadband ultrasonic attenuation of the calcan...
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Influence of brisk walking on the broadband ultrasonic attenuation of the calcaneus in previously sedentary women aged 30-61 years.

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