A pilot study on the importance of forefoot bone length in male 400-m sprinters: is there a key morphological factor for superior long sprint performance?
A pilot study on the importance of forefoot bone length in male 400-m sprinters: is there a key morphological factor for superior long sprint performance?
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DOI：
10.1186/s13104-018-3685-y
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发表时间：
2018-08-13
影响因子：
1.8
通讯作者：
Isaka T
中科院分区：
文献类型：
--
作者：
Tomita D;Suga T;Tanaka T;Ueno H;Miyake Y;Otsuka M;Nagano A;Isaka T
本研究的主要目的是确定训练有素的 400 米专业短跑运动员的前脚骨长度与长距离短跑表现之间的关系。使用磁共振成像测量了 25 名男性 400 米短跑运动员和 25 名男性非短跑运动员的大脚趾和第二脚趾的前脚骨总长度。对每个脚趾的前足骨进行总计，以评估总体前足骨长度，然后标准化为最大足长。 400米短跑运动员的大脚趾和第二脚趾前脚骨的相对总长度显着长于非短跑运动员（两者P<0.05）。 400米短跑运动员第二脚趾前足骨的相对总长度（而非大脚趾）与个人最佳400米冲刺时间显着相关（r = − 0.441，P = 0.028）。这些发现表明，对于训练有素的 400 米专业短跑运动员来说，较长的前足骨与较高的长距离冲刺表现有关。因此，本研究首次确定了形态因素（例如长前足骨）可能在实现卓越的长距离冲刺表现中发挥重要作用。
The main purpose of the present study was to determine the relationship between the forefoot bone length and long sprint performance in well-trained 400-m specialized sprinters. The total lengths of the forefoot bones of the big and second toes in 25 male 400-m sprinters and 25 male non-sprinters were measured using magnetic resonance imaging. The forefoot bones of each toe were totaled to assess overall forefoot bone length and then normalized to the maximum foot length. The relative total lengths of the forefoot bones in the big and second toes were significantly longer in 400-m sprinters than in non-sprinters (P < 0.05 for both). The relative total length of the forefoot bones of the second toe, but not of the big toe, in 400-m sprinters was significantly correlated with personal best 400-m sprint time (r = − 0.441, P = 0.028). These findings demonstrated that longer forefoot bones are related to higher long sprint performance in well-trained 400-m specialized sprinters. Therefore, the present study is the first to determine that morphological factors such as long forefoot bones may play an important role in achieving superior long sprinting performance.