Accuracy of a New Prediction Equation to Calculate One Repetition Maximum (1RM) in Trained and Untrained Young and Old Adults
试验速览
- 阶段
- 不适用
- 状态
- Enrolling By Invitation
- 发起方
- 入组人数
- 120
- 试验地点
- 1
- 主要终点
- Maximum load, one repetition maximum, leg press
研究概览
简要总结
Resistance exercise training (RT) is a key component of health related exercise programs. However, an accurate specification of RT load prescription is essential for effective and safe achievement of training aims. Proper specification of exercise intensity might be the most critical issue when designing RT protocols for adults. One repetition maximum tests (1RM) have been considered the "gold standard" of dynamic maximum strength evaluation. Although the argument of increased risk of injuries and adverse effects with 1RM testing in older people has been rejected by several studies , limited motivation to lift maximum loads, requirement for high test effort, time constraints, and interruption of the continuity of the training process aggravate the frequent application of 1RM tests particularly in non-athletic RT. 1RM prediction equations that use the load and number of repetitions completed to fatigue (RTF) to predict repetition maximum might be a reliable and feasible option to 1RM testing. Thus, the primary aims of this study were to evaluate the predictive accuracy of current RTF equations and to develop an equation that more accurately predicts 1RM from RTF tests.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •18 to 35 years old
- •60 to 85 years old
排除标准
- •Contraindication for one repetition maximum tests
- •musculoskeletal injuries that may prevent a reliable and safe assessment of the 1RM and RTF tests
结局指标
主要结局
Maximum load, one repetition maximum, leg press
时间窗: At baseline - no follow up tests
Maximum load lifted once (1RM, in kg) for the leg press exercise
次要结局
- Maximum load lifted at 5-8RM, leg press(At baseline - no follow up tests)
- Maximum load lifted at 9-12RM, leg press(At baseline - no follow up tests)
- Maximum load lifted at 13-16 RM, leg press(At baseline - no follow up tests)
- Maximum load, one repetition maximum, lat pulls(At baseline - no follow up tests)
- Maximum load lifted at 5-8 RM, lat pulls(At baseline - no follow up tests)
- Maximum load lifted at 9-12 RM, lat pulls(At baseline - no follow up tests)
- Maximum load lifted at 13-16 RM, lat pulls(At baseline - no follow up tests)
- Maximum load, one repetition maximum, triceps dips(At baseline - no follow up tests)
- Maximum load lifted at 5-8 RM, triceps dips(At baseline - no follow up tests)
- Maximum load lifted at 9-12 RM, triceps dips(At baseline - no follow up tests)
- Maximum load lifted at 13-16 RM, triceps dips(At baseline - no follow up tests)
- Maximum load, one repetition maximum, trunk extension(At baseline - no follow up tests)
- Maximum load lifted at 5-8 RM, trunk extension(At baseline - no follow up tests)
- Maximum load lifted at 9-12 RM, trunk extension(At baseline - no follow up tests)
- Maximum load lifted at 13-16 RM, trunk extension(At baseline - no follow up tests)
- Maximum load, one repetition maximum, trunk flexion(At baseline - no follow up tests)
- Maximum load lifted at 5-8 RM, trunk flexion(At baseline - no follow up tests)
- Maximum load lifted at 9-12 RM, trunk flexion(At baseline - no follow up tests)
- Maximum load lifted at 13-16 RM, trunk flexion(At baseline - no follow up tests)
- Maximum load, one repetition maximum, leg flexion(At baseline - no follow up tests)
- Maximum load lifted at 5-8 RM, leg flexion(At baseline - no follow up tests)
- Maximum load lifted at 9-12 RM, leg flexion(At baseline - no follow up tests)
- Maximum load lifted at 13-16 RM, leg flexion(At baseline - no follow up tests)
- Maximum load, one repetition maximum, leg extension(At baseline - no follow up tests)
- Maximum load lifted at 5-8 RM, leg extension(At baseline - no follow up tests)
- Maximum load lifted at 9-12 RM, leg extension(At baseline - no follow up tests)
- Maximum load lifted at 13-16 RM, leg extension(At baseline - no follow up tests)
研究者
Wolfgang Kemmler, PhD
Professor Dr. PhD, Research Director
University of Erlangen-Nürnberg Medical School