Furtado Guilherme, Patrício Miguel, Loureiro Marisa, Teixeira Ana Maria, Ferreira José Pedro
1 Research Unit for Sport and Physical Activity (CIDAF) at Faculty of Sport Science and Physical Education (FCDEF), Coimbra, Portugal.
2 Laboratory of Biostatistics and Medical Informatics and IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
Percept Mot Skills. 2017 Aug;124(4):754-776. doi: 10.1177/0031512517709915. Epub 2017 May 31.
Associations between frailty and physical-functional fitness (PFF) indicators in frail women over 65 years of age remain largely unexplored. This study analyzed the relationship between frailty syndrome (FS) and PFF indicators and assessed how the latter might predict the former. Participants were 119 elderly women (81.96 ± 7.89 years) recruited from four social and healthcare centers. PFF was assessed through muscle strength tests of upper and lower limbs, endurance, agility-dynamic balance, flexibility, and body composition. The following FS indicators were assessed: weight loss, exhaustion, weakness, slowness, and low physical activity level. Significant correlations were found between FS and endurance, agility-dynamic balance, upper and lower limbs muscle strength tests. Comparitive analyses also revealed that, among FS groups, the frail subgroup performed significantly poorer on all PFF measures except body composition. Additionally, a receiving operating characteristics curve analysis revealed good diagnostic accuracy for predicting FS using the agility-dynamic balance test (Area Under Curve [AUC] = .82, 95% CI [0.74, 0.90]; sensitivity and specificity were 70.4% and 84.8% for the cutoff = 16.22 seconds). Accurately, the risk of frail condition (not pre-frail) increases about 2.12% per second spent in this test. Thus, the agility-dynamic balance test is a promising tool for screening institutionalized older people for risk of FS.
65岁以上体弱女性的身体虚弱与身体功能适应性（PFF）指标之间的关联在很大程度上仍未得到充分研究。本研究分析了虚弱综合征（FS）与PFF指标之间的关系，并评估了后者对前者的预测能力。研究对象为从四个社会和医疗保健中心招募的119名老年女性（81.96±7.89岁）。通过上下肢肌肉力量测试、耐力、敏捷性 - 动态平衡、柔韧性和身体成分评估PFF。评估了以下FS指标：体重减轻、疲惫、虚弱、行动迟缓以及低身体活动水平。发现FS与耐力、敏捷性 - 动态平衡、上下肢肌肉力量测试之间存在显著相关性。比较分析还显示，在FS组中，除身体成分外，虚弱亚组在所有PFF测量指标上的表现均显著较差。此外，一项接受者操作特征曲线分析显示，使用敏捷性 - 动态平衡测试预测FS具有良好的诊断准确性（曲线下面积[AUC]=0.82，95%置信区间[0.74, 0.90]；截断值为16.22秒时，敏感性和特异性分别为70.4%和84.8%）。准确地说，在该测试中每多花费一秒，体弱状况（非虚弱前期）的风险增加约2.12%。因此，敏捷性 - 动态平衡测试是筛查机构养老老年人FS风险的一种有前景的工具。
