Caminhar depressa faz bem !
"Caminhar depressa pode ser tão bom para controlar a pressão arterial, o colesterol e o risco de contrair diabetes como correr. As conclusões são de um estudo publicado este mês pela revista Asteriosclerosis, Thrombosis and Vascular Biology que revela que o importante é a distância que se percorre no exercício, e não o tempo.
O estudo foi feito a 33.060 corredores e 15.045 pessoas que utilizam as caminhadas como forma de exercício ao longo de seis anos. Retiradas as conclusões, os investigadores verificaram que a energia utilizada nas duas formas de exercício resulta em “reduções similares para a tensão arterial alta, o colesterol alto, diabetes e possivelmente para doenças cardíacas”, diz o documento." in Público online
Em Portugal temos o Programa Nacional de Marcha e Corrida como um programa adequado a quem procura estes benefícios.
Abstract do estudo:
Walking Versus Running for Hypertension, Cholesterol, and Diabetes Mellitus Risk Reduction
- From the Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA (P.T.W.); and Division of Cardiology, Hartford Hospital, Hartford, CT (P.D.T.).
- Correspondence to Paul T. Williams, PhD, Life Sciences Division, Lawrence Berkeley National Laboratory, Donner 464, 1 Cycloton Rd, Berkeley, CA 94720. E-mail Este endereço de e-mail está protegido de spam bots, pelo que necessita do Javascript activado para o visualizar
Objective—To test whether equivalent energy expenditure by moderate-intensity (eg, walking) and vigorous-intensity exercise (eg, running) provides equivalent health benefits.
Approach and Results—We used the National Runners’ (n=33 060) and Walkers’ (n=15 945) Health Study cohorts to examine the effect of differences in exercise mode and thereby exercise intensity on coronary heart disease (CHD) risk factors. Baseline expenditure (metabolic equivant hours per day [METh/d]) was compared with self-reported, physician-diagnosed incident hypertension, hypercholesterolemia, diabetes mellitus, and CHD during 6.2 years follow-up. Running significantly decreased the risks for incident hypertension by 4.2% (P<10−7), hypercholesterolemia by 4.3% (P<10−14), diabetes mellitus by 12.1% (P<10−5), and CHD by 4.5% per METh/d (P=0.05). The corresponding reductions for walking were 7.2% (P<10−6), 7.0% (P<10−8), 12.3% (P<10−4), and 9.3% (P=0.01). Relative to <1.8 METh/d, the risk reductions for 1.8 to 3.6, 3.6 to 5.4, 5.4 to 7.2, and ≥7.2 METh/d were as follows: (1) 10.1%, 17.7%, 25.1%, and 34.9% from running and 14.0%, 23.8%, 21.8%, and 38.3% from walking for hypercholesterolemia; (2) 19.7%, 19.4%, 26.8%, and 39.8% from running and 14.7%, 19.1%, 23.6%, and 13.3% from walking for hypertension; and (3) 43.5%, 44.1%, 47.7%, and 68.2% from running, and 34.1%, 44.2% and 23.6% from walking for diabetes mellitus (walking >5.4 METh/d excluded for too few cases). The risk reductions were not significantly different for running than walking for diabetes mellitus (P=0.94), hypertension (P=0.06), or CHD (P=0.26), and only marginally greater for walking than running for hypercholesterolemia (P=0.04).
Conclusions—Equivalent energy expenditures by moderate (walking) and vigorous (running) exercise produced similar risk reductions for hypertension, hypercholesterolemia, diabetes mellitus, and possibly CHD.
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