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% |