 
 
 1 
S9 Table. Moderate level of agreement factors. 
Factors that achieved a level of agreement of 40-69% after all three rounds (n=20). 
 
Factor 
 
Level of agreement (%) 
Metabolism 
Angiogenesis 
55,6 
Body 
Muscle fibre transformation capacity  
55,6 
Tendon stiffness 
55,6 
Total fat mass 
50,0 
Weight / BMI 
44,4 
Lean mass 
44,4 
Hormones 
Growth hormone level 
66,7 
Insulin-like growth factor-1 (IGF-1) level 
55,6 
Nutrition 
Vitamin B complex vitamins (B1-12) deficiency 
55,6 
Immune system 
Blood pressure regulation 
50,0 
Healing function of soft tissue 
50,0 
Injuries 
Risk of joint injuries 
66,7 
Risk of upper respiratory tract infections 
66,7 
Psychological 
Emotion regulation 
66,7 
Pain sensitivity 
50,0 
Self-control 
50,0 
Resilience capacity 
50,0 
Concentration capacity 
44,4 
Environment 
Altitude training sensitivity 
55,6 
Heat resistance capacity 
50,0 
 

Factors associated with high-level endurance performance: An expert consensus derived via the Delphi technique.
Konopka, Magdalena J,Zeegers, Maurice P,Solberg, Paul A,Delhaije, Louis,Meeusen, Romain,Ruigrok, Geert,Rietjens, Gerard,Sperlich, Billy