預防子宮內膜癌:減重、多運動


  【24drs.com】預防子宮內膜癌或許可以更簡單!根據一篇新報告指出,美國子宮內膜癌新案例有五分之三是可以被預防的,如果婦女維持健康體重和保持運動的話。
  
  研究者估計,59%的子宮內膜癌案例(每年約29,500例)可以被預防,只要婦女每天維持運動至少30分鐘,且維持健康體重、身體質量指數(BMI)介於18.5-25.0 kg/m2。
  
  美國癌症研究學院(AICR)以及世界癌症研究基金會(WCRF)發表的2013年子宮內膜癌報告也指出,喝咖啡可降低風險。
  
  越來越多證據認為,癌症風險與運動及體重之間有關聯;運動和健康體重被認為與降低某些癌症風險有關,包括乳癌、前列腺癌以及大腸癌。
  
  AICR營養通訊經理Alice Bender表示,但是,對於子宮內膜癌,這個關聯更引人注目,相當多案例可以藉由改變飲食和生活型態而加以預防;根據AICR指出,目前7成美國婦女過重或肥胖,超過半數沒有足夠運動來幫助自己預防子宮內膜癌。
  
  研究者也發現,高血糖負擔或許是子宮內膜癌的另一個可能原因;換句話說,飲食中富含含糖飲料、碳水化合物中的大量加工食品加劇了發生此病的風險。
  
  Bender表示,我們未曾發現高糖飲食增加了子宮內膜癌風險,我們不希望人們聚焦在升糖指數,希望大眾知道的是,含有大量加工食品的飲食以及含糖飲料會造成代謝上的差異。
  
  攝取咖啡也與降低子宮內膜癌風險有關。雖然過多咖啡因可能會影響睡眠品質以及造成其他不良影響,Bender指出,這項研究顯示,飲食中可以含適量咖啡因,喝低咖啡因咖啡也有保護力。
  
  這篇回顧評估了2007年全球首篇相關研究以來所有有關子宮內膜癌、飲食、運動、體重的科學研究,國際專家小組判斷相關證據,AICR/WCRF的科學家估計,美國約59%的案例可以藉由運動和健康體重預防。
  
  Bender解釋,可預防的數據僅是保守估計,所根據的情況是,如果美國婦女的BMI介於18.5- 25.0 kg/m2且每週都每天運動至少30分鐘。
  
  在這篇報告引用的營養與癌症文獻中,肥胖和子宮內膜癌的關聯性最一致且最強。
  
  Bender指出,儘管越來越多研究指出生活型態和體重之於癌症風險的關聯,後續也有媒體報導,許多人仍不知道此一關聯。她表示,我們做過調查,許多人知道過重會增加第2型糖尿病和心臟病風險,但約半數不知道它是癌症風險因素,還有相當多人不相信、不知道這些資訊。
  
  對於久坐和過重者,改變可能是個艱鉅任務。Bender 表示,對某些人來說,可能相當難以減重;人們應該立即開始行動,如果你過重,先從不再變胖開始。
  
  減重應被視為長期效果,不是一蹴可及的;人們應該從一些改變開始,漸漸改變生活型態而幫助自己減重。
  
  運動方面也是如此,她表示,許多人認為自己需要長期到健身房運動,結果卻是一事無成;運動是另一個艱難部分,但這篇報告發現,不論休閒或職業運動,所有類型的運動都是重要的。
  
  換句話說,可以是短時間的運動,即使是上班日也做得到。Bender 表示,你可以散步15分鐘,定時離開辦公桌動一動,爬樓梯而不搭電梯;即使從事的是久坐類型的工作,也可以將運動融入日常生活。
  
  資料來源:http://www.24drs.com/professional/list/content.asp?x_idno=7009&x_classno=0&x_chkdelpoint=Y
  

Preventing Endometrial Cancer: Lose Weight, Get Active

By Roxanne Nelson
Medscape Medical News

Preventing endometrial cancer might be easier than previously believed. According to a new report, 3 of 5 new cases of endometrial cancer in the United States can be prevented if women maintain a healthy weight and are physically active.

The researchers estimate that 59% of the cases of endometrial cancer (about 29,500 annually) could be prevented if women engaged in physical activity for at least 30 minutes per day and maintained a healthy body weight, with a body mass index (BMI) from 18.5 to 25.0 kg/m2.

The Endometrial Cancer 2013 Report, which was published by the American Institute for Cancer Research (AICR) and World Cancer Research Fund International (WCRF), also notes that coffee consumption reduces the risk.

Increasing evidence has suggested a link between cancer risk and physical activity and body weight. Physical activity and a healthy body weight have been associated with a reduced risk for a number of cancers, including breast, prostate, and colon, as previously reported by Medscape Medical News.

But in the case of endometrial cancer, the relation is quite striking, said Alice Bender, RD, MS, nutrition communications manager at AICR. "A very significant number of cases can be prevented by making changes in diet and lifestyle."

Currently, 7 of 10 American women are overweight or obese, and more than half do not get enough exercise to protect themselves against endometrial cancer, according to the AICR.

The researchers also found that a high glycemic load "is probable cause of endometrial cancer." In other words, a diet rich in sugar-laden drinks and processed foods high in carbohydrates boosted the risk of developing the disease.

We haven't seen this before — that a high glycemic diet increases the risk for endometrial cancer, Bender told Medscape Medical News. "While we don't want people to focus on the glycemic index, we do want to make them aware that diets that contain a lot of processed foods and sugary drinks can make a difference in the metabolic environment."

Coffee consumption is also associated with a reduced risk for endometrial cancer. Although too much caffeine can affect sleep quality and have other detrimental effects, this study shows that moderate amounts of coffee can be part of a healthy diet, Bender pointed out. "And drinking decaffeinated coffee was also protective."

Updated Results

The review evaluated all the scientific research available on endometrial cancer, diet, physical activity, and body weight since the first global review was conducted in 2007. An international panel of experts judged the evidence, and scientists at the AICR/WCRF estimated that about 59% of cases in the United States could be prevented with physical activity and a healthy body weight.

The preventability figures are a conservative estimate, "based on what would happen if all women in the United States had a BMI between 18.5 and 25.0 kg/m2 and were physically active for at least 30 minutes a day, 7 days a week," Bender explained.

Many Unaware of Link

The link between obesity and endometrial cancer was the most consistent and strongest found in the nutrition and cancer literature that was used for this report.

Bender pointed out that despite the increasing number of studies linking lifestyle and weight to cancer risk and the subsequent media coverage, many people are still unaware of the connection. "We have done surveys," she said, "and while many people are aware that being overweight increases the risk of type 2 diabetes and heart disease, about half do not see it as a risk factor for cancer. There is still a fair number who aren't convinced and who haven't seen that information."

For someone who is sedentary and overweight, change can be a daunting task. "It can be very difficult to lose weight, and overwhelming for some," Bender acknowledged. "People should begin wherever you are right now. If you are overweight, start by just maintaining that weight. Don't let it go up."

Weight loss should be viewed as a long-term effort, not something that needs to be done immediately. "People should begin by making some changes and gradually transition to a lifestyle that helps them lose that weight."

The same goes for physical activity. "Many think they need to set aside a long stretch of time for working out or that they need to join a gym; as a result, they don't do anything," she said. "Physical activity is another hard component, but this report did find that activity of all types is important, not just recreational but occupational."

In other words, physical activity can be done in short bursts of time, even during the work day. "You can go for a 15-minute walk, get up from your desk periodically, take the stairs instead of the elevator," Bender said. "It is possible to work physical activity into daily life, even if you have a sedentary job."

    
相關報導
回顧發現:肥胖基因對減重無影響
2016/9/30 下午 04:58:33
運動程度高與女性的氣喘控制不佳有關
2015/12/2 下午 02:04:43
研究認為運動可改善氣喘控制
2015/11/18 上午 09:42:28

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