Lehtonen A, Viikari J
Acta Physiol Scand. 1978 Sep;104(1):117-21. doi: 10.1111/j.1748-1716.1978.tb06257.x.
Serum lipid concentrations of lumberjacks whose occupational physical activity is most vigorous were compared with those of electricians. The lumberjacks had significantly higher serum HDL-cholesterol and significantly lower triglyceride and free fatty acid concentrations but there were no significant differences in total cholesterol levels. The favourable effect of vigorous physical activity at work on lipid metabolism is, however, epidemiologically not seen, obviously due to negative risk factors in lumberjacks' life.
将从事最剧烈职业体力活动的伐木工的血脂浓度与电工的血脂浓度进行了比较。伐木工的血清高密度脂蛋白胆固醇显著较高，甘油三酯和游离脂肪酸浓度显著较低，但总胆固醇水平没有显著差异。然而，从流行病学角度来看，工作中剧烈的体力活动对脂质代谢的有利影响并未显现，这显然是由于伐木工生活中的负面风险因素所致。
