Guglielmo L G A, Greco C C, Denadai B S
Human Performance Laboratory, UNESP, Rio Claro, Brazil.
Int J Sports Med. 2009 Jan;30(1):27-32. doi: 10.1055/s-2008-1038792. Epub 2008 Oct 30.
The objective of this study was to compare the effect of different strength training protocols added to endurance training on running economy (RE). Sixteen well-trained runners (27.4 +/- 4.4 years; 62.7 +/- 4.3 kg; 166.1 +/- 5.0 cm), were randomized into two groups: explosive strength training (EST) (n = 9) and heavy weight strength training (HWT) (n = 7) group. They performed the following tests before and after 4 weeks of training: 1) incremental treadmill test to exhaustion to determine of peak oxygen uptake and the velocity corresponding to 3.5 mM of blood lactate concentration; 2) submaximal constant-intensity test to determine RE; 3) maximal countermovement jump test and; 4) one repetition maximal strength test in leg press. After the training period, there was an improvement in RE only in the HWT group (HWT = 47.3 +/- 6.8 vs. 44.3 +/- 4.9 ml . kg (-1) . min (-1); EST = 46.4 +/- 4.1 vs. 45.5 +/- 4.1 ml . kg (-1) . min (-1)). In conclusion, a short period of traditional strength training can improve RE in well-trained runners, but this improvement can be dependent on the strength training characteristics. When comparing to explosive training performed in the same equipment, heavy weight training seems to be more efficient for the improvement of RE.
本研究的目的是比较在耐力训练基础上增加不同强度训练方案对跑步经济性（RE）的影响。16名训练有素的跑步者（年龄27.4±4.4岁；体重62.7±4.3千克；身高166.1±5.0厘米）被随机分为两组：爆发力训练（EST）组（n = 9）和大重量力量训练（HWT）组（n = 7）。他们在训练4周前后进行了以下测试：1）递增式跑步机测试至 exhaustion，以确定峰值摄氧量和对应于3.5 mM血乳酸浓度的速度；2）次最大强度恒定强度测试以确定RE；3）最大反向移动跳跃测试；4）腿部推举的一次重复最大力量测试。训练期结束后，仅HWT组的RE有所改善（HWT组：训练前44.3±4.9毫升·千克⁻¹·分钟⁻¹，训练后47.3±6.8毫升·千克⁻¹·分钟⁻¹；EST组：训练前45.5±4.1毫升·千克⁻¹·分钟⁻¹，训练后46.4±4.1毫升·千克⁻¹·分钟⁻¹）。总之，短期的传统力量训练可改善训练有素的跑步者的RE，但这种改善可能取决于力量训练的特点。与在相同设备上进行的爆发力训练相比，大重量训练似乎对改善RE更有效。
