評論
打印
Another research study was reported in 2007
2007年發(fā)表的另一個研究
which investigated whether leisure-time activity,
調(diào)查了女性的業(yè)余活動
body mass index, BMI or body fat distribution
身體質(zhì)量指數(shù)和身體脂肪分布
influenced colon cancer risk in women.
對其患直腸癌風(fēng)險的影響
The subjects of the study were enrolled
研究對象加入了
in a very large and ongoing project to follow
一個大型的進行中的項目
the lifestyle and health risks in nurses.
進而跟蹤記錄護士的生活方式和健康風(fēng)險
This was called the nurses health study
這個研究名為護士健康研究
and involved over 80,000 women followed
從1976年起，超過8萬名女性
since 1976. Every two years the women
參與了這個研究，每兩年，研究對象
provided personal information on medical risk
會通過郵寄給她們的問卷
factors of major medical events through mailed
提供關(guān)于主要醫(yī)療事故的醫(yī)療風(fēng)險因素的
questionnaires. The time per week spent doing
個人信息，研究對象每周
leisure time physical activities was recorded
運動的時間被記錄下來
and a MET hour per week score was calculated.
并計算出每周每小時的MET值
The leisure activities included walking, jogging,
業(yè)余運動包括行走，慢跑
running, bicycling, swimming, tennis, calisthenics,
快跑，騎自行車，游泳，打網(wǎng)球，健美操
aerobics or rowing machines. Hospital records
有氧運動以及劃船機運動
and pathology reports gave cancer incident
醫(yī)院記錄和病理學(xué)報告
results for the participants.
提供參與者的癌癥發(fā)病結(jié)果
The study found that having a high BMI
研究發(fā)現(xiàn)身體質(zhì)量指數(shù)高
significantly increased the risk of colon cancer
會顯著增加女性的直腸癌風(fēng)險
in women. A BMI greater than 29 was
身體質(zhì)量指數(shù)大于29
considered high. The results of the study
是公認(rèn)的高指數(shù)，研究結(jié)果具有說服力
were convincing that higher levels of leisure time
高強度的業(yè)余時間運動
activities was associated with decreased risk
能夠降低女性
of colon cancer in women. Those women
患結(jié)腸癌的風(fēng)險
who walked between 1 and 2 hours per week
每周行走1到2小時的女性
lowered colon cancer risk by 31%.
會使結(jié)腸癌的發(fā)病率降低31%
A further protective effect of exercise
每周超過4小時
was observed in women who participated
進行中度或劇烈運動的女性
in more than 4 hours per week of moderate
有更好的防癌效果
or vigorous physical activity. This reduced
她們的結(jié)腸癌發(fā)病率降低了44%
their risk by 44%. The intensity of the activity
所以，運動強度對預(yù)防結(jié)腸癌
therefore was important to the protective effect.
效果的好壞至關(guān)重要
