Quantitative Analysis of Walking in a Decapod Crustacean, the Rock Lobster Jasus Lalandii : I. Comparative Study of Free and Driven Walking

摘要: The study compares the relative validity of data obtained from two experimental situations, i.e. free walking and driven walking, in relation to leg coordination Jasus lalandii (Milne-Edwards). relationship between ipsilateral contralateral legs during forward as well backward sequences has been analysed situations. They operate roughly opposition. Although little difference mean phase values observed strength coupling is greater animals. power stroke (PS) duration correlates with period, but return (RS) more variable varies according considered. does not appear be correlated step period treadmill situation. Initially, several properties single motor unit discharges movement have identical both walking. However, significant differences intra-burst organization. These indicate that constraint decreases variability all parameters produces a stable stereotyped pattern.