Baseline characteristics for glyceryl trinitrate (GTN) (n=16) and placebo control (n=17) groups
| GTN (n=16) | Placebo (n=17) | Total group (n=33) | |
|---|---|---|---|
| Personal characteristics | |||
| Age (years) | 31.9±9.6 | 33.8±10.5 | 32.9±10.0 |
| Sex (men/women) | 11/5 | 14/3 | 25/8 |
| Height (m) | 180.2±8.6 | 181.7±9.7 | 180.9±9.1 |
| Mass (kg) | 78.1±11.6 | 84.8±14.8 | 81.6±13.6 |
| Training hours (h/week) | 4.7±5.2 | 3.7±3.6 | 4.1±4.4 |
| Clinical characteristics | |||
| VISA-P at baseline | 63.0±16.4 | 67.8±10.9 | 65.5±13.8 |
| VAS during sports at baseline | 4.1±2.9 | 5.8±3.0 | 5.0±3.1* |
| Duration of symptoms (weeks) | 47±39 | 49±36 | 48±37 |
| Unilateral/bilateral symptoms | 9/7 | 14/3 | 23/10 |
*Significant difference between GTN and placebo groups: p = <0.05.
Presented numbers are means±SD or numbers.
VAS, Visual Analogue Scores; VISA-P, Victorian Institute of Sports Assessment-Patella.