Endurance

Muscle fibres fall into two categories – there are fast twitch muscles, which power fast movements like jumping, or sprinting, and slow twitch muscles which you use constantly and are harder to wear out. The muscles in your lower back, for example, keep you upright, while your pelvic floor helps keep you continent. You can train these slow twitch muscles to keep them in shape and avoid future problems.

Endurancepb+j Builder