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1.
Int. j. morphol ; 26(2): 305-308, jun. 2008.
Article in English | LILACS | ID: lil-549950

ABSTRACT

A lot has been reported about variation of palmaris longus muscle in journals and conventional textbooks. The incidence of palmaris longus muscle absence among people of the six geo-political zones of Nigeria was evaluated using 600 subjects. 31.25 percent (187 subjects) lack palmaris longus muscleon either of the forearms. 12.5 percent (75 subjects) shows unilateral absence and 18.75 percent (112 subjects) shows bilateral absence. 25 percent (150) of subjects lacks palmaris longus muscleon their right forearms while 25 percent also lacks it on their left forearms. 6 percent (37) shows double tendons of palmaris longus muscleon both forearms. Highest incidence of absence was recorded among people of South-West zone.


Mucho se ha informado acerca de la variación del músculo palmar largo en revistas y libros de texto convencionales. La incidencia de ausencia del músculo palmar largo entre las personas de las seis zonas geo-políticas de Nigeria se evaluó usando 600 sujetos. 31,25 por ciento (187 sujetos) no tenían músculo palmar largo en cualquiera de los antebrazos, 12,5 por ciento (75 sujetos) mostró ausencia unilateral y 18,75 por ciento (112 sujetos) mostró ausencia bilateral. 25 por ciento (150) de los sujetos carece de músculo palmar largo en su antebrazo derecho, mientras que el 25 por ciento carece de él también en su antebrazo izquierdo. 6 por ciento (37) muestra dobles tendones de músculo palmar largo en ambos antebrazos. Mayor incidencia de ausencia se registró entre las personas de la zona Sur-Oeste.


Subject(s)
Humans , Male , Adolescent , Adult , Female , Forearm/abnormalities , Hand Deformities, Congenital/epidemiology , Muscle, Skeletal/abnormalities , Tendons/abnormalities , Hand Deformities, Congenital/ethnology , Incidence , Nigeria/epidemiology
2.
Rev. bras. ativ. fís. saúde ; 12(1)jan.-abr. 2007.
Article in Portuguese | LILACS | ID: lil-536646

ABSTRACT

Através dos estudos eletromiográficos é que se tem conhecido a efetiva participação dos músculos esqueléticos. Participaram do estudo 05 sujeitos do sexo masculino, na faixa etária entre 17 e 22 anos, praticantes de musculação. Foram utilizados eletrodos de superfície. Os músculos reto femoral, vasto lateral e vasto medial foram analisados no movimento de extensão do joelho realizado sentado na mesa romana; os músculos bíceps femoral, semimembranoso e semitendinoso foram analisados no movimento de flexão do joelho em decúbito ventral na mesa romana. Os resultados expressos em RMS foram: 543,86 (±127,39) para o músculo semimembranoso, 400,08 (±124,10) para o semitendinoso, 222,92 (±69,28) o valor do bíceps femoral, 288,12 (±152,4) para o músculo reto femoral, 215,63 (±117,30) para o músculo vasto lateral e 190,58 (±75,01) o valor do vasto medial. As cargas máximas utilizadas foram maiores no movimento de extensão do joelho. Os resultados demonstraram maior participação dos músculos flexores do joelho quando coparado com os extensores.


Through the electromyography studies it is that is had known the effective participation of the skeletal muscle. They participated in the study five subject of the masculine sex, in the age group among 17 and 22 years. Surface electrodes were used. The vastus lateralis, vastus medialis, rectus femoris muscles was analyzed in the extension movement of the knee, sat down in the roman table; the biceps femoris, semimembranosus and semitendinosus muscles was analyzed in the flexion movement of the knee, in decubitus ventralis, in the roman table. The results, expressed in RMS, were: 543,86 (±127,39) for the semimembranosus muscle, 400,08 (±124,10) for semitendinosus, 222,92 (±69,28) the value of the biceps femoris muscles, 288,12 (±152,4) for the rectus femoris, 215,63 (±117,30) for the vastus lateralis muscle and 190,58 (±75,01) the value of vastus medialis. The used maximum loads were larger in the extension movement of the knee. The results demonstrated larger participation of the flexors muscles of he knee when compared with the extensors muscles.


Subject(s)
Humans , Male , Adolescent , Adult , Knee Joint/physiology , Electromyography/methods , Muscle Stretching Exercises/methods , Muscle, Skeletal/physiology , Quadriceps Muscle/physiology , Electrodes
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