【Marathon Sub 2 !?】
馬拉松打破2小時障礙，究竟有沒有可能？
這話題其實不只運動品牌關注，學術界其實也注意到了，《Sports Medicine》這期刊最近的一篇文章就在探討此議題，但這篇文章要花39.95歐才能下載（哭），只好看看摘要了..
Abstract
A sub-2-hour marathon requires an average velocity (5.86 m/s) that is 2.5% faster than the current world record of 02:02:57 (5.72 m/s) and could be accomplished with a 2.7% reduction in the metabolic cost of running. Although supporting body weight comprises the majority of the metabolic cost of running, targeting the costs of forward propulsion and leg swing are the most promising strategies for reducing the metabolic cost of running and thus improving marathon running performance. Here, we calculate how much time could be saved by taking advantage of unconventional drafting strategies, a consistent tailwind, a downhill course, and specific running shoe design features while staying within the current International Association of Athletic Federations regulations for record purposes. Specifically, running in shoes that are 100 g lighter along with second-half scenarios of four runners alternately leading and drafting, or a tailwind of 6.0 m/s, combined with a 42-m elevation drop could result in a time well below the 2-hour marathon barrier.
簡言之：
1. 其實只要每秒再快個0.14公尺（每分鐘多個8.4公尺，每小時多個504公尺)就辦到了
2. 所以跑者的體型（體重），腿的肌耐力至關重要
3. 比賽時最好有點順風，每秒6公尺的風速，這感覺像是微風會讓樹枝略為搖動的風力
4. 最後賽道是略往下，總和是下降42m的路線
5. 接著，鞋子能再輕個100g
就醬子，破2障礙可達成...........
跑者表示：你這鍵盤叫練........
資料來源：http://link.springer.com/article/10.1007%2Fs40279-017-0708-0
