Answer: Energy
Lots of energy, capacity or tendency for intense activity; vigour.
Gusto is enthusiasm or vigour when carrying out an activity.
Lactic acid is produced by muscles during intense activity. The human body has a way of removing the lactic acid. When the production of lactic acid overcomes the body's ability to remove it, a side stitch commonly occurs.Regular exercise can improve the body's ability to cope with lactic acid buildup.
Vigorous is the adjectives form of vigour.
The team showed vigour in the game
Ocean Vigour happened in 1947.
Do intense activity, cycling, jogging, etc.
deed, performance, achievement, exploit, feat, accomplishment, energy, activity, force, spirit, vigour, effect, conflict, clash, combat, contest
Intense U.S. merger activity occurred periodically, from 1898 to 1902, during the 1920s, from 1951 to 1955, in the 1960s, and during the mid 1980s
excercise
vigour
because it involves heavy endurance training and involves fairly intense physical activity. because it involves heavy endurance training and involves fairly intense physical activity.