Strength of evidence for relationship between associated factors and patellar tendinopathy
Risk factor | No of high and low-score studies | No of studies with positive effect | Level of evidence |
---|---|---|---|
Demographics | |||
Age | High: 1 | High: 0 | Inconclusive |
Low: 4 | Low: 0 | ||
Gender | High: 0 | High: 0 | Inconclusive |
Low: 2 | Low: 0 | ||
Anthropometrics | |||
Height | High: 2 | High: 0 | Inconclusive |
Low: 4 | Low: 0 | ||
Weight | High: 2 | High: 1 | Some |
Low: 6 | Low: 2 | ||
Body mass index/weight–height ratio | High: 1 | High: 1 | Some |
Low: 2 | Low: 1 | ||
Waist and hip girth | High: 1 | High: 1 | Inconclusive |
Low: 1 | Low: 0 | ||
Waist-to-hip ratio | High: 1 | High: 1 | Some |
Low: 1 | Low: 1 | ||
Leg-length difference | High: 1 | High: 0 | Some |
Low: 2 | Low: 2 | ||
Longer tibial length to stature | High: 0 | High: 0 | Inconclusive |
Low: 1 | Low: 1 | ||
Arch height of foot | High: 0 | High: 0 | Some |
Low: 1 | Low: 1 | ||
Sports-related factors | |||
Playing years | High: 0 | High: 0 | Inconclusive |
Low: 2 | Low: 0 | ||
Amount of training/competition | High: 0 | High: 0 | Inconclusive |
Low: 6 | Low: 3 | ||
Strength training | High: 0 | High: 0 | Inconclusive |
Low: 3 | Low: 1 | ||
Jump training | High: 0 | High: 0 | Inconclusive |
Low: 2 | Low: 0 | ||
Playing surface volleyball | High: 0 | High: 0 | Inconclusive |
Low: 1 | Low: 1 | ||
Strength/flexibility | |||
Quadriceps flexibility | High: 1 | High: 1 | Some |
Low: 0 | Low: 0 | ||
Hamstring flexibility | High: 1 | High: 1 | Some |
Low: 1 | Low: 0 | ||
Sit and reach scores | High: 0 | High: 0 | Inconclusive |
Low: 4 | Low: 1 | ||
Angle dorsiflexion range | High: 0 | High: 0 | Inconclusive |
Low: 2 | Low: 1 | ||
Quadriceps strength | High: 1 | High: 0 | Some |
Low: 4 | Low: 1 | ||
Hamstring strength | High: 1 | High: 0 | Inconclusive |
Low: 1 | Low: 0 | ||
Vertical jump performance | High: 0 | High: 0 | Some |
Low: 5 | Low: 3 |