Balducci Pascal, Clémençon Michel, Trama Robin, Blache Yoann, Hautier Christophe
Univ Lyon - University Claude Bernard Lyon 1, EA 7424 - Inter-university Laboratory of Human Movement Science.
Int J Sports Med. 2017 Oct;38(11):819-826. doi: 10.1055/s-0043-112342. Epub 2017 Aug 10.
This study aimed to determine mountain ultra-marathon (MUM) performance factors in a large group of endurance mountain runners. Maximal aerobic speed (MAS) was assessed one week prior to the MUM. The level and graded (10%) energy cost of running, stiffness, knee extensors force (KE), and jump height on a counter movement jump (CMJ) were measured in 24 male ultra runners before (pre) and immediately after (post) the Interlacs Trail (75 km and 3 930/3 700 m d+/d-). Performance time was correlated with MAS (r=- 0.74, p<0.001), fraction of MAS (F) sustained (r=- 0.89, p<0.001), KE (r=- 0.51, p<0.05), and KE loss (r=- 0.51, p<0.05). A multiple regression analysis was performed using performance time in minutes (T) and the calculated individual characteristics, resulting in T=- 11.852×F-37.195×MAS-0.118×KE+2090.581 (R=0.98, with 95% confidence interval). Contrary to expectations, performance was neither correlated to the level or uphill energy cost of running nor to the changes of these costs post-MUM. To perform in a MUM, training should take into account muscle strength of the KE, MAS and F.
本研究旨在确定一大群耐力山地跑者的山地超级马拉松（MUM）表现因素。在MUM前一周评估最大有氧速度（MAS）。在24名男性超级跑者参加Interlacs Trail（75公里，3930/3700米爬升/下降）之前（赛前）和之后立即（赛后）测量跑步的水平和分级（10%）能量消耗、刚度、膝伸肌力量（KE）以及反向纵跳（CMJ）的跳跃高度。表现时间与MAS（r = -0.74，p < 0.001）、持续的MAS分数（F）（r = -0.89，p < 0.001）、KE（r = -0.51，p < 0.05）和KE损失（r = -0.51，p < 0.05）相关。使用以分钟为单位的表现时间（T）和计算出的个体特征进行多元回归分析，结果为T = -11.852×F - 37.195×MAS - 0.118×KE + 2090.581（R = 0.98，95%置信区间）。与预期相反，表现既与跑步的水平或上坡能量消耗无关，也与MUM后这些消耗的变化无关。要在MUM中取得好成绩，训练应考虑KE、MAS和F的肌肉力量。
