Fig 1.
Measurement set-up to obtain knee angles (sagittal plane) and push-off angles (frontal plane) of the speed skaters.
M represents the main reference point for the rotatable camera 1.
Table 1.
Descriptive statistics (mean±SD) of 120 elite junior speed skaters with 1500-m season best time and age, 1500-m end-time and relative time spend on the four race segments of the 1500-m competition, presented per performance group for female and male separately.
Fig 2.
Changes in knee (A and B) and push-off (C and D) angles for the faster and slower performance groups, for female (A and C, n = 56) and male (B and D, n = 64) skaters separately. Error bars representing 95% confidence interval of the mean.
Table 2.
Descriptive statistics (mean±SD) of first and second (1.6±0.6 years later) measurements of elite junior speed skaters (female, male and total), with 1500-m season best time and age, 1500-m end-time and relative time spend on the four race segments of the 1500-m competition.
Fig 3.
Changes in knee (A & B) and push-off (D & C) angles throughout the 1500 m for female (left) and male (right) elite junior speed skaters for the first measurement (grey line, mean age 17.3 yrs) and the second measurement 1.6±0.6 years later (black line, mean age 18.9 yrs).