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Contribution of Energy Pathways In Sports

Table adapted from Fox E. L. et al,

The Physiological Basis for Exercise and Sport, 1993

Now that the energy systems have been described, a brief look at muscle composition will show how the periodized dragon boat training program, to be outlined next, has resulted in over 1,000 world championship medals and has continued to produce world champions.

FAST AND SLOW TWITCH MUSCSCLES

Are you a better 200-metre dragon boater or 2,000-metre dragon boater? Many people believe that having more fast- and slow-twitch muscle fibres may determine what distances dragon boaters excel at and how they respond to training.

Bundles of individual muscle fibres, or myocytes, make up the skeletal muscle. Each myocyte contains many myofibrils, strands of proteins (actin and myosin), that grab on to each other and pull. This activity shortens the muscle and causes muscle contraction.

Muscle fibres can be broken down into two main types: slow twitch (Type I) muscle fibres and fast twitch (Type II) muscle fibres. Fast twitch fibres can be further categorized into Type IIad Type IIb fibres.