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首页> 外文期刊>Journal of Biomedical Engineering and Technology >Influence of Gender on the Activity of Agonist-Antagonist Muscles during Maximum Knee and Ankle Contractions
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Influence of Gender on the Activity of Agonist-Antagonist Muscles during Maximum Knee and Ankle Contractions

机译：性别对最大屈膝踝关节收缩过程中激动剂-拮抗剂肌肉活动的影响

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Muscle mechanical energy expenditure reflects the neuro-motor strategies employed by the nervous system to analyze human locomotion tasks and is directly related to its efficiency. The purpose of this study was to investigate the influence of gender on the activity of agonist-antagonist muscles during maximum knee and ankle contraction in males (n1=10) and females (n2=10) adult population. Different movements of knee and ankle used for the maximum contractions were knee flexion and extension, ankle plantar flexion and dorsiflexion. The agonist-antagonist muscles considered for the study were Rectus femoris (Quadriceps Muscle group), Biceps femoris (Hamstring Muscle group), Tibialis Anterior and Soleus. The statistical analysis applied was post hoc analysis to determine least significant differences among the male and female groups. The different groups for classifying these movements were Female Dominant Leg (FDL), Female Non Dominant Leg (FNDL), Male Dominant Leg (MDL) and Male Non Dominant Leg (MNDL). The results showed no significant differences (p≥0.1) in the muscle energy expenditure for different lower limb activities among gender. In addition to this, knee flexion was found to be the activity with minimum energy expenditure in healthy males and females. Active agonist-antagonist muscle pairs during knee and ankle contractions were found to have minimum mechanical energy expenditure. This study is a part of a larger intervention study that is being carried out for designing feedback based FES devices.
机译：肌肉机械能消耗反映了神经系统用来分析人类运动任务的神经运动策略，并且直接关系到其效率。这项研究的目的是调查在成年男性（n1 = 10）和女性（n2 = 10）成年人最大膝关节和踝关节收缩过程中性别对激动剂-拮抗剂肌肉活动的影响。用于最大收缩的膝盖和脚踝的不同运动是膝盖屈伸，脚踝plant屈和背屈。研究中考虑的激动剂-拮抗剂肌肉是股直肌（股四头肌组），股二头肌（H绳肌组），胫骨前肌和比目鱼肌。应用的统计分析是事后分析，以确定男性和女性组之间的最小显着差异。对这些运动进行分类的不同组是女性显性腿（FDL），女性非显性腿（FNDL），男性显性腿（MDL）和男性非显性腿（MNDL）。结果表明，不同性别下肢活动的肌肉能量消耗没有显着差异（p≥0.1）。除此之外，在健康的男性和女性中，膝盖屈曲被认为是能量消耗最小的活动。发现在膝盖和踝部收缩期间活动的激动剂-拮抗剂肌肉对具有最小的机械能消耗。这项研究是为设计基于反馈的FES设备而进行的一项大型干预研究的一部分。

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