腹筋 背筋筋力 (第1報)-健常者について

• Published in: 理学療法学 Vol. 16; pp. 33 - 37
• Main Authors: 青木一治, 平野 孝行, 太田 智子
• Format: Journal Article
• Language: Japanese
• Published: 公益社団法人日本理学療法士協会 1989; Japanese Physical Therapy Association (JPTA)
• Subjects: 等速性筋力計; 背筋筋力; 腹筋筋力
• ISSN: 0289-3770

健常者132名 (男子72名, 女子60名) により, 等速性筋力計 (Cybex II) を用いて, 体幹筋筋力 (腹筋, 背筋筋力) の男女の年代別正常値の決定を試みた。各年代は男女とも20代, 30代, 40代に分けて行った。また, 身長, 体重, lever arm の長さが筋力に与える影響についても検討した。その結果, 男女とも腹筋筋力は背筋筋力よりも弱かった。また, 腹筋, 背筋筋力ともに女子は男子よりも弱かった。これらはいずれの年代でも同様であった。背筋筋力に対する腹筋筋力の割合は, 男子では平均43.6%で, 20代が大きく, 30代, 40代はほぼ同値であった。女子では平均31.6%で, 各年代ともほぼ同じであった。身長と筋力は有意な相関はなく, 体重は背筋筋力において, 男女ともに, 体重が増すに従い筋力も増加した。lever arm の長さと筋力においては, 男女とも, 腹筋, 背筋筋力で arm の長さが長くなると筋力も強くなるという相関があった。 We tried to determine normal trunk muscle strength (abdominal and back muscle) values of several ages and males and females by using Cybex II isokinetic dinamometer on 132 normal subjects (72 males, 60 females). Their ages were in the 20s, 30s and 40s. And, we discussed influence of trunk muscle strength values by height, weight and lever arm's length. The results showed that abdominal muscle strength was weaker than back muscle strength regardless of sex. Also abdominal and back muscle strength of males versus females showed males were stronger in the long run. These showed the same results in any age group. The ratio of abdominal to back muscle strength in males had a mean value of 43.6%. It was the highest in 20s, and almost the same percentage in 30s and 40s. In females, it was 31.6%, and showed almost the same values in any age group. In addition, height and muscle strength were not related, relation between weight and muscle strength increased significantly in back muscle strength in regards to weight regardless of sex, and relation between lever arm's length and muscle strength increased significantly in the abdominal and back muscle strength compared to arm's length regardless of sex.