トレマックスシステムを用いた静的最大筋力の出力特性 : レッグエクステンション, レッグカールにおける筋出力の動態評価

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タイトル別名
  • トレマックス システム オ モチイタ セイテキ サイ ダイキンリョク ノ シュ
  • トレマックス システム オ モチイタ セイテキ サイダイ キンリョク ノ シュツリョク トクセイ : レッグ エクステンション, レッグ カール ニ オケル キンシュツリョク ノ ドウタイ ヒョウカ
  • Toremakkusu shisutemu o mochiita seiteki saidai kinryoku no shutsuryoku tokusei : reggu ekusutenshon, reggu karu ni okeru kinshutsuryoku no dotai hyoka
  • A study on statical strength of leg extention and leg curl exercise messured by "Tremax System" : evaluations of variation mode for these strength

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"Tremax system" consists of a devise and evaluating system to measure statical strength of various muscles. There were some measuring positions for these. In this paper, the positions for leg extention were No.1 to No.4 and for leg curl were No.5 to No.8. I measured the strength each of leg extention and leg curl exercise in various knee angles by this system. I normalized whole data of the strength, i. e. any value of the strength, which was same man and same exercise, divided by the maximum. This normalized data was %strength, I called. All six subjects were members of a Judo club at Keio University. Using the numerical data and a least square method, I apporoximate on the relationship between differental knee angle and the %strength during each exercises. Having the variations in prospect with the %strength of the knee angle, the numerically well defined experimental function was liked a parabola. y = a + bx - cx², (c>0) From solutioning this function, the equation was as follows ; For leg extention : YE = -492.43 + 9.58 XE -0.039 XE² XE = 122.26, yE = 93.12, (point of inflection). For leg curl : YC = -126.74 + 2.14 XC - 0.0051 XC² XC = 208.85, yC = 97.22, (point of inflection). It was meaned that each value of XE and XC was the best angle for performing a maximam statical strength both of two exercises. Considering these angles, I found the Position that was just a like the knee angle doing the exercise at same. the best measuring position for the leg extention was No.2 and that for the leg curl was No.6.

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