abdominals

For competitive runners, this often boils down to sinewy legs and defined abdominals.

Just as she has to had to fight back from injuries - to her back, her abdominals, her ankle - she had to battle on court, with world number two Aryna Sabalenka her challenge to overcome.

Medical examinations found she had also suffered serious internal injuries to her rectum, spleen and abdominals, caused by a broom handle.

After absorbing his introduction to the concept of situps, I followed along as nameless ladies in shiny leotards instructed me to reach, crunch and tune into my abdominals, my ankles wrapped in weights.

Combining inhalation with movement can teach the body to use the trunk muscles in a different way, Wiebe said, so you’re no longer relying only on your abdominals.