The first study was published in the Journal of Physical Activity & Health yesterday. That study looked at over 1,000 men with an average age of 71. Those men who expended 12,600 calories per week in exercise were nearly half as likely to die of any cause as those who burned less than 2,100 per week.
Researchers looked at men who had entered Harvard as undergrads between the years 1916 and 1950. Of those individuals in the Harvard Alumni Health Study, 1,021 of the men had previously been diagnosed with cancer. In 1988, those individuals reported their physical activities. In 1993, those same individuals updated their data on their physical activity. A final update occurred in 2008.
The study results were adjusted for age, smoking, body mass index, early parental mortality and dietary variables.
Previous studies have concentrated on the benefits of exercise for healthy individuals. This study recognizes that due to earlier diagnosis and better treatment, more people are surviving cancer and so there is an interest in how to enhance survivors’ longevity. The most physically active study participants were 38 percent less likely to die of cancer and 49 percent less likely to die of a cardiovascular disease during the follow-up studies.
To see how your level of exercise stacks up, check out this calorie burn calculator.
The second study was published earlier this week in the American Heart Association Journal Circulation: Heart Failure. That study found that sitting for long periods increases heart failure risk in men (ages 45 to 69) even in men who exercise regularly.
Researchers recommend that individual increase their activity level and decrease their overall sedentary level. The study is the first to link heart failure with sedentary time. In this study of 84.170 men between the ages of 45 and 69, researchers calculated the level of metabolic equivalent of task (a measure of the body’s energy use). Sedentary levels were measured in hours. The study looked at an average of 8 years of follow up and found that men who spent five or more hours a day sitting were 34 percent more likely to develop heart failure than men who spent no more than two hours a day sitting, regardless of how much they exercised. In addition, heart failure risk more than doubled in men who sat for at least five hours a day and exercised very little compared to men who were very physically active and sat for two hours or less per day.
For tips on ways to get exercise, go to this site.
Utafiti huo ulichapishwa katika jarida la Journal of Physical Activity & Health. Uchunguzi huo ulichunguza wanaume zaidi ya 1,000 wenye umri wa wastani wa miaka 71. Wanaume waliotumia kalori 12,600 kwa wiki katika mazoezi walikuwa karibu nusu ya uwezekano wa kufa kutokana na sababu yoyote kama wale waliotumia chini ya 2,100 kwa wiki. Watafiti hao walichunguza wanaume waliohitimu chuo kikuu cha Harvard kati ya mwaka wa 1916 na 1950. Katika utafiti wa Harvard Alumni Health Study, 1,211 ya wanaume walipigwa na saratani. Mwaka 1988, watu hao waliandika ripoti zao za shughuli zao za kimwili. Mwaka 1993, watu hao walifanya mabadiliko ya data kuhusu shughuli zao za mwili. Mabadiliko ya mwisho yalifanyika mnamo 2008. Matokeo ya utafiti huo yalirekebishwa kwa umri, uvutaji sigara, index ya uzito wa mwili, vifo vya mapema vya wazazi na vigezo vya lishe. Uchunguzi wa awali umezingatia faida za mazoezi ya mwili kwa watu wenye afya. Utafiti huu unatambua kwamba kutokana na utambuzi wa mapema na matibabu bora, watu zaidi wanaokoka kansa na kwa hivyo kuna maslahi katika jinsi ya kuongeza maisha ya waokokaji. Wanafunzi wenye bidii zaidi walikuwa na uwezekano mdogo wa kufa kwa kansa na asilimia 49 ya kufa kwa ugonjwa wa moyo na mishipa ya damu. Ili kujua jinsi unavyofanya mazoezi, angalia kipimo hiki cha kalori. Utafiti huo ulichapishwa mapema wiki hii katika jarida la American Heart Association, Circulation: Heart Failure. Utafiti huo uligundua kuwa kukaa kwa muda mrefu huongeza hatari ya kushindwa kwa moyo kwa wanaume wenye umri wa miaka 45 hadi 69, hata kwa wanaume wanaofanya mazoezi mara kwa mara. Watafiti wanapendekeza kwamba mtu aongeze kiwango chake cha utendaji na kupunguza kiwango chake cha jumla cha kukaa. Utafiti huo ni wa kwanza kuunganisha kushindwa kwa moyo na kukaa chini. Katika utafiti huo, ambao ulihusisha wanaume 84,170 wenye umri wa miaka 45 hadi 69, watafiti walihesabu kiwango cha metabolic equivalent of task (kiwango cha matumizi ya nishati ya mwili). Viwango vya kukaa vimepimwa kwa saa. Utafiti huo ulionyesha kuwa wanaume waliotumia masaa 5 au zaidi kila siku wakiwa wameketi walikuwa na uwezekano mkubwa wa kupata ugonjwa wa kushindwa kwa moyo kuliko wanaume waliotumia masaa mawili au zaidi kila siku wakiwa wameketi. Uwezekano wa kushindwa kwa moyo uliongezeka mara mbili kwa wanaume walioketi kwa masaa 5 au zaidi kwa siku na kufanya mazoezi kidogo, ikilinganishwa na wanaume waliofanya mazoezi ya mwili kwa masaa mawili au chini. Kwa vidokezo vya jinsi ya kufanya mazoezi, nenda kwenye tovuti hii.