V

VO2max
Stands for the maximum oxygen consumption/uptake (measured as volume (V) of oxygen (O2) in milliliters, used in one minute, per kilogram of body mass, while breathing at sea level). It is used as a measurement related to the functional capacity of the heart (4) and indication of the aerobic endurance.

Volume

Is the sum of the total amount of weight lifted in multiple sets of one exercise and/or the total amount of weight lifted in a training session (7) – in resistance training. Volume is also be used in aerobic endurance training and speed training. In aerobic endurance training the volume can be defined as minutes, when talking about small sided games for example. In speed training the volume is calculated as number of sprints × distance and as a result indicates the total distance covered during a speed session.