Table 4 Relative percentage of congruent answers by 'ability to train longer' and 'doctors' advice' as rationale for supplement use and supplement used by all athletes who reported the use of nutritional supplements (n = 520)
From: Performance enhancement with supplements: incongruence between rationale and practice
Able to train longer | Doctors' advice | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Yes | No | Yes | No | ||||||
Creatine | Yes | 51 | 73.9% | 137 | 30.4% | ||||
No | 18 | 26.1% | 314 | 69.6% | |||||
69 | 100.0% | 451 | 100.0% | ||||||
Iron | Yes | 64 | 50.8% | 91 | 23.1% | ||||
No | 62 | 49.2% | 303 | 76.9% | |||||
126 | 100.0% | 394 | 100.0% | ||||||
Ginseng | Yes | 10 | 14.5% | 33 | 7.3% | ||||
No | 59 | 85.5% | 418 | 92.7% | |||||
69a | 100.0% | 451a | 100.0% | ||||||
Whey protein | Yes | 41 | 59.4% | 118 | 26.2% | ||||
No | 28 | 40.6% | 333 | 73.8% | |||||
69 | 100.0% | 451 | 100.0% | ||||||
Caffeine | Yes | 33 | 47.8% | 91 | 20.2% | ||||
No | 36 | 52.2% | 360 | 79.8% | |||||
69 | 100.0% | 451 | 100.0% | ||||||
Vitamin C | Yes | 53 | 76.8% | 313 | 69.4% | 89 | 70.6% | 277 | 70.3% |
No | 16 | 23.2% | 138 | 30.6% | 37 | 29.4% | 117 | 29.7% | |
69 | 100.0% | 451 | 100.0% | 126 | 100.0% | 394 | 100.0% | ||