Shephard R J, Youldon P E, Cox M, West C
Atherosclerosis. 1980 Mar;35(3):277-86. doi: 10.1016/0021-9150(80)90126-4.
The serum lipid profile (total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides) has been studied in 98 men and 158 women before and 6 months after introducing an employee fitness programme. Over this period, the sample sorted itself into 4 sub-groups (non-participants, drop-outs, high adherents, and low adherents). The high-adherents attended 2--3 30-min physical activity classes per week over the 6-month study, progressing to 15--17 min of aerobic activity per session, with significant gains of predicted maximum oxygen intake, and reductions of body fat. Nevertheless, there were few "favourable" changes of lipids that could be related to the physical activity sessions. A decrease of total cholesterol (mainly in the women) was unrelated to the changes of maximum oxygen intake, and occurred equally in non-participants and high adherents. High adherent women showed a decrease of LDL cholesterol, but this also was almost matched by changes in non-participants, while the main response of HDL cholesterol was a decrease in non-participants and drop-outs rather than an increase in high-adherents. It is concluded that if data are collected while subjects are in energy balance and persisting with their activity, a programme of the intensity practical in an employee fitness class has little impact upon blood lipids.
在引入一项员工健身计划之前和之后6个月，对98名男性和158名女性的血脂谱（总胆固醇、低密度脂蛋白胆固醇、高密度脂蛋白胆固醇和甘油三酯）进行了研究。在此期间，样本自行分为4个亚组（非参与者、退出者、高坚持者和低坚持者）。在为期6个月的研究中，高坚持者每周参加2 - 3次30分钟的体育活动课程，每次课程的有氧运动时间逐渐增加到15 - 17分钟，预计最大摄氧量显著增加，体脂减少。然而，与体育活动课程相关的血脂“有利”变化很少。总胆固醇的降低（主要在女性中）与最大摄氧量的变化无关，在非参与者和高坚持者中同样出现。高坚持的女性低密度脂蛋白胆固醇有所降低，但非参与者的变化几乎与之相当，而高密度脂蛋白胆固醇的主要变化是在非参与者和退出者中降低，而非高坚持者中升高。结论是，如果在受试者处于能量平衡且持续进行活动时收集数据，员工健身课程中实际强度的计划对血脂几乎没有影响。
