High trunk muscle endurance, strength, and moderate flexibility reportedly help maintain musculoskeletal health, but there is evidence for tradeoffs among these variables as well as sex differences in trunk muscle endurance and strength. To test if these observations extend similarly to both men and women in nonindustrial and industrial environments, we investigated intra-individual associations and group and sex differences in trunk muscle endurance, strength, and flexibility among 74 (35 F, 39 M; age range: 18–61 years) adults from the same Kalenjin-speaking population in western Kenya. We specifically compared men and women from an urban community with professions that do not involve manual labor with rural subsistence farmers, including women who frequently carry heavy loads.

中文翻译：

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肯尼亚西部农村自给农民和城市工业化成年人的躯干肌肉耐力、力量和柔韧性

据报道，高躯干肌肉耐力、力量和适度的柔韧性有助于维持肌肉骨骼健康，但有证据表明这些变量之间存在权衡，以及躯干肌肉耐力和力量的性别差异。为了测试这些观察结果是否同样适用于非工业和工业环境中的男性和女性，我们调查了 74 名（35 F，39 M；年龄范围： 18-61 岁）来自肯尼亚西部相同卡伦金语人口的成年人。我们专门比较了来自城市社区从事不涉及体力劳动的职业的男性和女性与农村自给农民，包括经常搬运重物的女性。