Modes of contraction
a) Isotonic
1.	Concentric
2.	Eccentric
b) Isometric

Concentric Vs Eccentric

1. A maximal concentric contraction (MCC) produce less force than a maximal eccentric 
    contraction (MEC)

2.Greater number of motor units must be recruited to control the same load with a concentric 
   contraction as compared with an eccentric contraction

3.At slow velocity MEC generates greater force than a MCC
   At fast velocity MCC force rapidly decreases and MEC force increase slightly and then decrease.

4.Eccentric muscle contraction consumes less O2 and fewer energy stores than concentric contraction

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