Type One Muscle Fibres Are Slow Oxidative

The correct answer to this question is slow oxidative, and it's the first to be recruited. Type one fibres are smaller and contract more slowly and less forcefully but are fatigue resistant. Children two to five years old have a higher percentage of type one fibres than new borns and adults. Aging causes loss of function from sarcopenia, that is loss of muscle mass,. loss of motor units, particularly type two, and reduced maximum oxygen consumption beginning at 25 years old. females have muscles forty % smaller than men because of smaller fibres and fewer total numbers of fibres in diameter cross sectional area.