为受过训练的骨质疏松症老年人开发精确的重复预测公式

IF 2.2 Q2 SPORT SCIENCES Sports Pub Date : 2024-08-28 DOI:10.3390/sports12090233
Rose Beia, Alfred Wassermann, Sebastian Raps, Jerry Mayhew, Michael Uder, Wolfgang Kemmler
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引用次数: 0

摘要

本研究的目的是评估用于估算患有骨质增生/骨质疏松症的老年男性和女性在不同运动中的 1RM 的预测方程。40 名训练有素的老年男性和女性(73 ± 8 岁)骨质增生/骨质疏松症患者在阻力装置上进行了 1RM 动态和等长最大力量测试。此外,每位参与者还在 5-8RM、9-12RM 和 13-16RM 区进行了疲劳重复(RTF)。在对文献中现有的 1RM 预测方程的预测性能进行评估后,我们为所有七种练习开发了新的预测方程。其中一个以绝经后妇女为研究对象的现有方程已经可以根据 RTF 预测除一项运动外的所有运动的 1RM 值。然而,基于三次多项式的新的特定运动预测方程能最准确地预测 5-8 次范围内的 RTF 1RM 值,预测值与实际 1RM 值之间的平均绝对差异为 3.7 ± 3.7% (压腿)至 6.9 ± 5.5%(屈腿),大致在可接受的变异系数范围内。对于某些练习,加入等长最大力量测试会略微提高 5-8RM 的预测性能。总之,本预测方程能准确估计受过训练、患有骨质增生/骨质疏松症的老年女性和男性的 1RM 值。有必要对这一新方程进行进一步评估,以确定其对不同年龄组和人群的适用性。
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Developing Accurate Repetition Prediction Equations for Trained Older Adults with Osteopenia
The aim of this study was to evaluate prediction equations to estimate 1RM in different exercises in older men and women with osteopenia/osteoporosis. Forty well-trained older women and men (73 ± 8 years) with osteopenia/osteoporosis performed 1RM dynamic and isometric maximum strength tests on resistance devices. In addition, each participant performed repetitions-to-fatigue (RTF) in the 5–8RM, 9–12RM, and 13–16RM zones. After evaluating the predictive performance of available 1RM prediction equations from the literature, new prediction equations were developed for all seven exercises. One of the available equations that focus on postmenopausal women already acceptably predicted 1RM from RTF for all but one exercise. Nevertheless, new exercise-specific prediction equations based on a cubic polynomial most accurately predict 1RM from RTF in the 5–8 reps range with mean absolute differences between predicted and actual 1RM of 3.7 ± 3.7% (leg-press) to 6.9 ± 5.5% (leg flexion) that is roughly within the acceptable coefficient of variation. For some exercises, the inclusion of the isometric maximum strength tests slightly increases the prediction performance of the 5–8RM. In conclusion, the present prediction equation accurately estimates 1RM in trained, older women and men with osteopenia/osteoporosis. Further evaluation of this new equation is warranted to determine its applicability to different age groups and populations.
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来源期刊
Sports
Sports SPORT SCIENCES-
CiteScore
4.10
自引率
7.40%
发文量
167
审稿时长
11 weeks
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