| Reference* | Level of play, country | ITN | Sex | n | Age (years) | V̇o2max (ml.kg−1.min−1) |
| Juniors | ||||||
| Buti et al41 | State squad, Australia | 3 | M | 8 | 11.7 | 56.3 (6.5) |
| F | 8 | 11.7 | 52.6 (8.2) | |||
| Carlson et al42 | Elite junior, Australia | 2–3 | M | 6 | 16.8 | 60.3 (6.4) |
| F | 6 | 14.6 | 52.3 (7.5) | |||
| Powers, et al43 | High school, USA | 4–5 | F | 10 | 15.8 (0.4) | 48 (2.1) |
| 18–35 years | ||||||
| Smekal et al26 | Top league, Austria | 3–4 | M | 20 | 26 (4) | 57.3 (5.1) |
| Bernardi et al27 | Intermediate, Italy | 4–5 | M | 7 | 28.1 (3) | 65 (6) |
| Christmass et al28 | State level, Australia | 3 | M | 7 | 24 (2) | 53.4 (1.8) |
| Kraemer et al44 | College, Div I and III, USA | 3–5 | F | 38 | 20 (2) | 47.6 (4.4) |
| Christmass et al29 | State level, Australia | 3 | M | 8 | 23 (1) | 54.3 (1.9) |
| Reilly et al30 | Top club, UK | 4 | M | 8 | 23.4 (3.1) | 53.2 (7.3) |
| Bergeron et al31 | University, Div I, USA | 3–4 | M | 10 | 20.3 (2.5) | 58.5 (9.4) |
| Morgans et al34 | Intermediate to advanced, USA | M | 17 | 31.4 (7.3) | 46.4 (6.2) | |
| Elliott et al35 | College level, Australia | 3–4 | M | 8 | 20.3 (1.3) | 65.9 (6.3) |
| Wilmore et al46 | Beginners, USA | 9–10 | M | 9 | 29 (6.6) | 44.4 (7.5) |
| 35 years and over | ||||||
| Ferrauti et al39 | Nationally ranked, Germany | 2–3 | M | 6 | 47 (5.4) | 47.5 (4.3) |
| F | 6 | 47.2 (6.6) | 41.4 (6.0) | |||
| Vodak et al45 | Recreational, USA | 6–8 | M | 25 | 39 (3) | 50.2 (5.7) |
| 6–8 | F | 25 | 42 (6) | 44.2 (5.4) | ||
| Swank et al47 | Elite, USA | 3–4 | M | 13 | 40–59 | 48.7 (11.7) |
| 4–5 | M | 15 | >60 | 35.3 (5.8) |
Values are mean (SD).
*First author and reference number.
F, female; ITN, international tennis number; M, male; n, number of subjects; V̇o2max, maximum oxygen consumption.