What that basically means is that a TPU shank helps guide the foot’s power toward the “jumping device” in the forefoot, which in turn provides that much more energy return, and, in theory, an increased vertical. As for how that device works exactly, APL is being pretty quiet about the specifics, due to the process of obtaining their patent. As for what the shoe feels like when engaging this device, it’s subtle, but noticeable. It doesn’t provide for the best court feel ever, but it’s surprisingly decent for the amount of “stuff” going on in the midsole. The midfoot shank’s feel is actually very familiar to any shoe with a firm shank – you can feel it flex when stressed, and almost “bounce” back when you push through. As far as the feel of the forefoot device, that’s a little harder to explain. It’s definitely firm, but also very responsive. The harder you push, the more it feels like it gives back. I really was able to feel some additional spring in my jumps, not only evident from the increased hang time I felt I gained, but from how high I was able to reach. Consistently too. （通俗意譯，APL Concept 1之所以被稱為“外掛”級別裝備，全仰仗著置入中底內的“推進裝置”。這個神器分佈在前腳掌，足蹠球(大腳趾後端的骨頭)以及足底伸縮帶部位（不明真相的群眾們，可以請教理療師和醫生，或者去做個足底按摩就知道我在說什麼了）。除此以外，外底採用了高密度熱塑性聚氨酯材質的“裝填&彈射™”柄（全是高科技啊），可以進一步提升壓縮-推進-升空的表現。而推進柄可以更大程度的提升前足和腳踝部位的穩定性，同時吸收運動中的足部受到的衝擊力，將衝擊力轉移至前腳掌的“裝填&彈射™”系統，提高垂直起跳高度。）
根據APL官網介紹，Concept 1 增加彈跳功能的原理如下：
What that basically means is that a TPU shank helps guide the foot’s power toward the “jumping device” in the forefoot, which in turn provides that much more energy return, and, in theory, an increased vertical. As for how that device works exactly, APL is being pretty quiet about the specifics, due to the process of obtaining their patent. As for what the shoe feels like when engaging this device, it’s subtle, but noticeable. It doesn’t provide for the best court feel ever, but it’s surprisingly decent for the amount of “stuff” going on in the midsole. The midfoot shank’s feel is actually very familiar to any shoe with a firm shank – you can feel it flex when stressed, and almost “bounce” back when you push through. As far as the feel of the forefoot device, that’s a little harder to explain. It’s definitely firm, but also very responsive. The harder you push, the more it feels like it gives back. I really was able to feel some additional spring in my jumps, not only evident from the increased hang time I felt I gained, but from how high I was able to reach. Consistently too. （通俗意譯，APL Concept 1之所以被稱為“外掛”級別裝備，全仰仗著置入中底內的“推進裝置”。這個神器分佈在前腳掌，足蹠球(大腳趾後端的骨頭)以及足底伸縮帶部位（不明真相的群眾們，可以請教理療師和醫生，或者去做個足底按摩就知道我在說什麼了）。除此以外，外底採用了高密度熱塑性聚氨酯材質的“裝填&彈射™”柄（全是高科技啊），可以進一步提升壓縮-推進-升空的表現。而推進柄可以更大程度的提升前足和腳踝部位的穩定性，同時吸收運動中的足部受到的衝擊力，將衝擊力轉移至前腳掌的“裝填&彈射™”系統，提高垂直起跳高度。）
如果將以上一大段繁瑣的火星科技術語翻譯成人人能懂的白話，大意就是，位於前掌的“增加彈跳裝置，透過TPU彈性形變對使用者提供大量的回饋力，繼而達到增 加彈跳的效果。至於，具體如何增加彈跳的細節， 由於商業機密和專利申請等原因，APL公司很保守的選擇避而不談。 當評測時把腳穿進球鞋的那刻，你就會感到一種細微的差別，一種前所未有的能量回饋感。 也許此鞋不能給你帶來最佳的場地感，但是考慮到中底是由如此複雜的科技和多種材質構成的前提下，APL Concept 1 絕對能給你帶來一絲驚喜。其實，其實中底的緩震感 就像其他的非氣墊中底所帶來的感覺相似（如adi adiprene⊕）腳掌發力時，立即可感到強有力的彈性。 至於，位於前掌增加彈跳的核心科技到底是一種怎麼感覺，就有點只能意會，不能言傳了。簡言之，不拖泥帶水的堅實，而且回饋力皆極佳。發力約狠，越是能感覺 到鞋子提供的反彈力。 可以肯定的是，我的確感覺到自己可以跳得更高，apl concept 1 不但提供給我明顯更長的滯空時間，而且，從多次摸高測試的結果也印證了我跳得更高的感覺。
透過摸高測試來測量彈跳增加的程度也許不是最科學準確的方法，但絕對是最切實可行的。 球場上能不能隨意蓋帽不取決於你的腳離地多高，而是跳起後你手能達到的高度。 透過我個人的測試，穿上 APL Concept 1後每次跳起都能增加一到兩英寸的高度（1英寸=2.54釐米）。為了得到更加嚴謹客觀的結果，透過更換多雙鞋測試多個不同籃筐的對比評測。驚人每次，我 都得到一致的結果，所以這些測試的結果，我唯一能得出的結論就是，是的，APL Concept 1 能提高彈跳。
除了增加垂直彈跳之外，APL公司還宣稱Concept 1 有緩解腿部疲勞的功效。的確，一個能提供如此強勁能量反饋的球鞋，也確實需要讓你的雙腿在運動中時刻保持輕鬆。 只是相對摸籃板的高度這樣客觀的資料，緩解腿部疲勞程度的測量就主觀的多，所以很難有個定論。 因為沒有穿鞋實戰的緣故，我既不能肯定或否定APL號稱可以緩解疲勞的效果，只是透過試跳，該功能似乎並不明顯。由於位於中底大量科技和多重材質，球鞋後 掌稍顯略沉。 另一個可能的原因，就是由於球鞋的透氣性不佳，出汗後會有覺得球鞋更沉的錯覺。