Land-walking vs.water-walking interventions in older adults:Effects on aerobic fitness

Andrew Haynes; Louise H.Naylor; Howard H.Carter; Angela L.Spence; Elisa Robey; Kay L.Cox; Barbara A.Maslen; Nicola T.Lautenschlager; Nicola D.Ridgers; Daniel J.Green

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Land-walking vs.water-walking interventions in older adults:Effects on aerobic fitness

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Background:Low cardiorespiratory fitness is an independent predictor of all-cause and cardiovascular mortality,and interventions that increase fitness reduce risk.Water-walking decreases musculoskeletal impact and risk of falls in older individuals,but it is unclear whether water-walking improves aerobic fitness in the same way as weight-dependent land-walking.This randomized controlled trial involved 3 intervention groups—a no-exercise control group(CG),a land-walking(LW)group,and a water-walking(WW)group—to investigate the comparative impacts of LWandWWto CG on fitness.Methods:Both exercise groups attended individually tailored,center-based,intensity-matched 3×weekly sessions for 24 weeks,which progressed to 150 min of exercise per week.This was followed by a 24-week no-intervention period.Maximal graded exercise tests were performed on a treadmill at Weeks 0,24,and 48.Results:Maximal oxygen uptake increased from Week 0 to Week 24 in both exercise groups(0.57±0.62 mL/kg/min,0.03±0.04 L/min for LW;0.93±0.75 mL/kg/min,0.06±0.06 L/min for WW,mean±SE)compared to the CG(-1.75±0.78 mL/kg/min,-0.16±0.05 L/min)(group×time,p<0.05).Time to exhaustion increased significantly following LW only(123.4±25.5 s),which was significantly greater(p=0.001)than the CG(24.3±18.5 s).By Week 48,the training-induced adaptations in the exercise groups returned to near baseline levels.Conclusion:Our study supports current physical-activity recommendations that 150 min/week of moderate-intensity exercise produces improvements in fitness in previously sedentary older individuals.Also,LW andWW elicit similar improvements in fitness if conducted at the same relative intensities.Exercise-na?ve older individuals can benefit from the lower impact forces and decreased risk of falls associated withWWwithout compromising improvements in cardiorespiratory fitness.

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《运动与健康科学：英文版》 |2020年第3期|274-282|共9页
作者
Andrew Haynes; Louise H.Naylor; Howard H.Carter; Angela L.Spence; Elisa Robey; Kay L.Cox; Barbara A.Maslen; Nicola T.Lautenschlager; Nicola D.Ridgers; Daniel J.Green;
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作者单位

School of Human Sciences(Exercise and Sport Science);

The University of Western Australia;

Perth;

WA 6009;

Australia;

School of Physiotherapy and Exercise Science;

Curtin University;

Perth;

WA 6102;

Australia;

School of Medicine;

The University of Western Australia;

Perth;

WA 6009;

Australia;

Academic Unit for Psychiatry of Old Age;

Department of Psychiatry;

The University of Melbourne;

Melbourne;

VIC 3010;

Australia;

North Western Mental Health;

Melbourne Health;

Melbourne;

VIC 3010;

Australia;

Division of Psychiatry;

WA Centre for Health&Ageing;

The University of Western Australia;

Perth;

WA 6009;

Australia;

Institute for Physical Activity and Nutrition(IPAN);

School of Exercise and Nutrition Sciences;

Deakin University;

Geelong;

VIC 3125;

Australia;

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原文格式 PDF
正文语种 chi
中图分类运动医学;
关键词
Cardiorespiratory; fitness; Graded; exercise; test; Physical; activity; Water; exercise;

Land-walking vs.water-walking interventions in older adults:Effects on aerobic fitness

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