Osses A Rodrigo, Yáñez V Jorge, Barría P Paulina, Palacios M Sylvia, Dreyse D Jorge, Díaz P Orlando, Lisboa B Carmen
Departmento de Enfermedades Respirationias, Pontifica Universidad de Católica de Chile.
Rev Med Chil. 2010 Sep;138(9):1124-30. Epub 2010 Nov 9.
the six minute walking distance test (6MWD) is widely used to evaluate exercise capacity in several diseases due to its simplicity and low cost.
to establish reference values for 6MWD in healthy Chilean individuals.
we studied 175 healthy volunteers aged 20-80 years (98 women) with normal spirometry and without history of respiratory, cardiovascular or other diseases that could impair walking capacity. The test was performed twice with an interval of 30 min. Heart rate, arterial oxygen saturation (with a pulse oxymeter) and dyspnea were measured before and after the test.
walking distance was 576 ± 87 m in women and 644 ± 84 m in men (p < 0.0001). For each sex, a model including age, height and weight produced 6MWD prediction equations with a coefficient of determination (R²) of 0.63 for women and 0.55 for men.
our results provide reference equations for 6MWD that are valid for healthy subjects between 20 and 80 years old.
六分钟步行距离测试（6MWD）因其简单性和低成本，被广泛用于评估多种疾病中的运动能力。
建立智利健康个体的6MWD参考值。
我们研究了175名年龄在20 - 80岁的健康志愿者（98名女性），他们肺活量测定正常，且无可能损害步行能力的呼吸、心血管或其他疾病史。测试进行两次，间隔30分钟。在测试前后测量心率、动脉血氧饱和度（使用脉搏血氧仪）和呼吸困难程度。
女性的步行距离为576 ± 87米，男性为644 ± 84米（p < 0.0001）。对于每种性别，一个包含年龄、身高和体重的模型产生了6MWD预测方程，女性的决定系数（R²）为0.63，男性为0.55。
我们的结果提供了适用于20至80岁健康受试者的6MWD参考方程。
