L. Aranda, J. Vianna, Elder Sousa Dutra, F. Z. Werneck, J. Novaes, Jorge Roberto Perrout de Lima, V. Reis
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引用次数: 1
摘要
不稳定表面已用于阻力训练,但没有研究比较能量消耗之间的稳定和不稳定的表面在循环重量训练。本研究比较了稳定表面和不稳定表面的能量消耗、运动后血乳酸峰值和感知运动率。健康男性20名,年龄24.65±3.48岁,身高1.79±0.08 m,体重80.61±9.14 kg,体脂11.86±3.49%。在稳定和不稳定的表面上进行15次最大重复的测试和重新测试,以确定工作量。循环重量训练包括一组15次重复,重复次数为最大重复次数的80%,包括卧推、后蹲、划船俯卧、死举、肩推、肘部伸展和肘部弯曲。能量消耗是通过间接量热法测量的。运动后测量血乳酸峰值和感知运动率。不稳定表面的总能量消耗高于稳定表面(70.7±10.0 vs 66.6±7.8 kcal);P = 0.01),感知运动率(8.1±0.9∶7.6±1.3;P = 0.02)。然而,稳定表面的血乳酸峰值高于不稳定表面(13.6±2.6 vs 12.5±1.9 mmol·L−1);P = 0.05)。总之,与稳定表面相比,不稳定表面上的循环重量训练可以用更少的重量进行,从而降低关节和骨骼的机械应力,同时仍然提供更高的代谢影响。
Circuit Weight Training on Stable and Unstable Surfaces: Differences in Energy Cost, Blood Lactate and Rate of Perceived Exertion
Unstable surfaces have been used in resistance training, but there are no studies that compared energy cost between stable and unstable surfaces in circuit weight training. This study compared energy cost, post-exercise peak blood lactate and perceived exertion rate between stable surface and unstable surface. Twenty healthy men (24.65 ± 3.48 years, 1.79 ± 0.08 m, 80.61 ± 9.14 kg and 11.86 ± 3.49% body fat) participated in the study. Test and retest of 15 maximum repetitions were performed on stable and unstable surfaces to define workload. The circuit weight training consisted of one set of 15 repetitions at 80% of 15 maximum repetitions in bench press, back squat, rowing bent prone, dead-lift, shoulder press, elbow extension and elbow flexion. Energy cost was measured by indirect calorimetry during and post-circuit weight training. Peak blood lactate and perceived exertion rate were measured post-exercise. Total energy cost was higher on unstable surface compared to stable surface (70.7 ± 10.0 vs. 66.6 ± 7.8 kcal; p = 0.01), as was perceived exertion rate (8.1 ± 0.9 vs. 7.6 ± 1.3; p = 0.02). However, peak blood lactate was higher on stable than unstable surfaces (13.6 ± 2.6 vs. 12.5 ± 1.9 mmol·L−1; p = 0.05). In conclusion, circuit weight training on unstable surfaces can be performed with less weight in comparison to stable surfaces, thereby lowering mechanical stress on joints and bones, while still providing a higher metabolic impact.