Table 2

Results from video analysis of the riding situation preceding the injury in SBX

Riding situationContact
Influence on
Case #Specific diagnosisSex*Accuracy (ms)Out of balanceCourse-lineSpeedTechnical errorLocation of errorContactInjured riderRider controlInjuryPosition**
Jumping
1ConcussionM±30Lost balanceInappropriateNormalYesTake-offNo contact
2ConcussionF±160Lost balanceAppropriateNormalYesTake-offNo contact
3Fracture UE††/radiusM±70BackwardsInappropriateNormalYesTake-offUnsure
4Contusion low backF±110Lost balanceAppropriateNormalYesTake-offNo contact
5Multiple traumaM±230Lost balanceInappropriateNormalYesTake-offNo contact
6Quadriceps rupture‡‡F±490Lost balanceAppropriateNormalYesLandingNo contact
7Knee injury/ligamentM±490§ForwardsAppropriateNormalYesLandingNo contact
8Muscle injury low back/pelvisM±200Lost balanceAppropriateNormalYesLandingNo contact
9Knee injury/ACLM±130BackwardsAppropriateNormalYesUnsureNo contact
10Knee injury/ACLM±160Lost balanceInappropriateNormalUnsureTake-offNo contact
11Knee injury/ACLM±125Lost balanceAppropriateHighUnsureTake-offNo contact
12Knee injury/twistedF±30Lost balanceAppropriateNormalNoBoard/board Arms/armsActiveYesYesBehind
13Shoulder injury/ligamentM±80Lost balanceAppropriateNormalNoBoard/boardPassiveYesYesIn front
Bank turn
14Shoulder injury/AC§§M±110In balanceAppropriateBoard/boardBothYesYesUnsure
15Fracture UE††/forearmM±40In balanceAppropriateBoard/boardPassiveYesYesIn front/beside
16ConcussionF±310Lost balanceInappropriateBoard/boardActiveYesYesIn front
17Knee injury/MCL¶¶F±50In balanceAppropriateBoard/board Trunk/trunk Arms/armsPassiveYesYesIn front
18Shoulder injury/ligamentM±50ForwardInappropriateUnsure
Rollers
Index frameAlternative index frame
19Fracture UE††/thumbM±340ForwardAppropriateBoard/handActiveAlready lost controlYesIn front
  • * Sex, male (M), female (F).

  • Accuracy, mean of the absolute deviations of the initial, individual estimates from the index frame determined in the consensus meeting

  • One outlier relative to consensus.

  • § Two outliers.

  • Consensus based on three experts.

  • ** Position, position of the rider who caused the contact.

  • †† UE, upper extremity.

  • ‡‡ Injury sustained in qualification run (individual run).

  • §§ AC, acromioclavicular joint injury.

  • ¶¶ MCL, medial collateral ligament.

  • ACL, anterior cruciate ligament; SBX, snowboard cross.