Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== RSI 10-5 ====== **RSI 10-5 - Timepoints** Start: Definition: Initiation of the countermovement jump and start of the unloading phase. Calculation: GRFz < bodyweight (N) ± 5SD Units: Frame # Braking End: Definition: End of the braking phase and start of the concentric phase. Calculation: First frame where COM vertical velocity > 0, following yielding end. Units: Frame # Takeoff: Definition: End of the concentric phase and start of the flight phase. Calculation: First frame GRFz < 30N Units: Frame # Ground Contact: Definition: End of the flight phase and start of the landing phase. Calculation: First frame GRFz > 30N following takeoff Units: Frame # **RSI 10-5 - KPI** Bodyweight: Definition: Average GRFz during weighting phase (i.e., when participant stands motionless on the force platform(s). Also referred to as system weight Calculation: mean(GRFz[0:500]) Units: Newtons (N) Mass: Definition: Mass of the participant (system) in kilograms determined during the weighting phase. Calculation: Bodyweight (N) / -9.81 m/s2 Units: Kilograms (kg) Jump Height: Definition: Measure of jumping performance. Center of mass displacement of the individual. Calculated based on impulse momentum. Average of 5 best jump heights. Calculation: Jump height = vtakeoff2(m/s) / 2*gravitational acceleration (m/s/s) Units: Meters (m), Inches (in) MRSI: Definition: Measure of explosive jumping performance. Ratio of Jump Height to Jump Time. Average of 5 jumps based on top 5 jump heights. Calculation: Jump Height/ Jump Time Units: Unitless RSI: Definition: Measure of explosive jumping performance. Ratio of Flight Time to Jump Time. Average of 5 jumps based on top 5 jump heights. Calculation: Flight Time/ Jump Time Units: Unitless Net Impulse Ratio: Definition: Ratio of braking net impulse to concentric net impulse. Average of 5 jumps based on top 5 jump heights. Calculation: Braking Impulse/ Concentric Impulse Units: Unitless Concentric Net Impulse: Definition: Impulse generated by the individual during the concentric phase independent of bodyweight. Average of 5 jumps based on top 5 jump heights. Calculation: ∫(Force (N) – Bodyweight(N)) * t(s) Units: Newton · seconds (N·s) Braking Net Impulse: Definition: Impulse generated by the individual during the braking phase independent of bodyweight. Average of 5 jumps based on top 5 jump heights. Calculation: ∫(Force (N) – Bodyweight(N)) * t(s) Units: Newton · seconds (N·s) Momentum: Definition: Vertical center of mass momentum of the individual at takeoff. Average of 5 jumps based on top 5 jump heights. Calculation: mass (kg) * velocitytakeoff (m/s) Units: Kilogram · meters per second (kg·m/s) Jump Time: Definition: Elapsed time between the start of the jump and takeoff . Average of 5 jumps based on top 5 jump heights. Calculation: Timetakeoff(s) – Timestart(s) Units: Seconds (s) Flight Time: Definition: Elapsed time between takeoff and ground contact following takeoff . Average of 5 jumps based on top 5 jump heights. Calculation: Timeground contact (s) – Timetakeoff(s) Units: Seconds (s) COM Depth: Displacement of the individual’s center of mass from the starting position Definition: Displacement of the individual’s center of mass from the starting position. Average of 5 jumps based on top 5 jump heights. Calculation: Positiontimepoint – Positionstart (m) Units: Meters (m) **RSI 10-5 - Sub phase Metrics** Phase Time: Definition: Temporal duration of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: ∆phase time(s) Units: Seconds (s) Avg Vel: Definition: Average center of mass vertical velocity across selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean COMvelocity(m/s). Units: Meters per second (m/s) Peak Vel: Definition: Peak negative center of mass vertical velocity within the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: maximum COMvelocity (m/s). Units: Meters per second (m/s) Avg Force: Definition: Average vertical force production during the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean vertical GRFz (N) Units: Newtons (N) Avg Force Rel: Definition: Average vertical force production during the selected phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: mean vertical GRFz (N)/ body mass (kg) Units: Newtons per kilogram (N/kg) Peak Force: Definition: Peak vertical force production during the selected phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: maximum GRFz (N) during the selected phase Units: Newtons (N) Peak Force Rel: Definition: Peak vertical force production during the selected phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: maximum GRFz (N) during the selected phase / mass (kg) Units: Newtons per kilogram (N/kg) Avg RFD: Definition: Average rate of force development during the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean GRFz(N)/ Time (s) across the selected phase Units: Newtons per second (N/s) Avg RFD Rel: Definition: Average rate of force development during the selected phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: mean GRFz(N)/ Time (s) across the selected phase / mass(kg) Units: Newtons per second per kilogram (N/s/kg) Peak RFD: Definition: Peak rate of force development during the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: maximum GRFz(N)/ Time (s) across the selected phase Units: Newtons per second (N/s) Peak RFD Rel: Definition: Peak rate of force development during the selected phase normalized to body mass. Average of 5 jumps based on top 5 jump heights. Calculation: maximum GRFz(N)/ Time (s) across the selected phase divided by mass(kg) Units: Newtons per second per kilogram (N/s/kg) Torso Angle: Definition: Segment angle of the torso at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Hip Flexion Angle L: Definition: Left hip joint flexion/ extension angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Hip Flexion Angle R: Definition: Right hip flexion/ extension joint angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Hip Add Angle L: Definition: Left hip joint adduction/abduction angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Hip Add Angle R: Definition: Right hip joint adduction/abduction angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Hip IR Angle L: Definition: Left hip joint internal/external rotation angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Hip IR Angle R: Definition: Right hip joint internal/external rotation angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Knee Flexion Angle L: Definition: Left knee joint flexion/ extension angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Knee Flexion Angle R: Definition: Right knee joint flexion/ extension angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Ankle Flexion Angle L: Definition: Left ankle joint flexion/ extension angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Ankle Flexion Angle R: Definition: Right ankle joint flexion/ extension angle at the end of the selected phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) **RSI 10-5 - Braking Metrics** Braking Time: Definition: Temporal duration of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Braking End (s) – Yielding End (s) Units: Seconds (s) Braking Avg Vel: Definition: Average center of mass vertical velocity across the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean (com_velocity)[braking_end:yielding_end] Units: Meters per second (m/s) Braking Peak Vel: Definition: Peak negative center of mass vertical velocity within the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: min (com_velocity) [braking_end:yielding_end] Units: Meters per second (m/s) Braking Avg Force: Definition: Average vertical force production during the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N))[braking_end:yielding_end] Units: Newtons (N) Braking Avg Force Rel: Definition: Average vertical force production during the braking phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N))[braking_end:yielding_end] / mass (kg) Units: Newtons per kilogram (N/kg) Braking Peak Force: Definition: Peak vertical force production during the braking phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N))[braking_end:yielding_end] Units: Newtons (N) Braking Peak Force Rel: Definition: Peak vertical force production during the braking phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N))[braking_end:yielding_end] / mass (kg) Units: Newtons per kilogram (N/kg) Braking Avg RFD: Definition: Average rate of force development during the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N)[braking_end:yielding_end] / Braking Time (s) Units: Newtons per second (N/s) Braking Avg RFD Rel: Definition: Average rate of force development during the braking phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N)[braking_end:yielding_end] / Braking Time (s))/ mass (kg) Units: Newtons per second per kilogram (N/s/kg) Braking Peak RFD: Definition: Peak rate of force development during the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N)[braking_end:yielding_end] / BrakingTime (s) Units: Newtons per second (N/s) Braking Peak RFD Rel: Definition: Peak rate of force development during the braking phase normalized to body mass. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N)[braking_end:yielding_end] / Braking Time (s) / mass(kg). Units: Newtons per second per kilogram (N/s/kg) Braking Torso Angle: Definition: Segment angle of the torso at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Hip Flexion Angle L: Definition: Left hip joint flexion/ extension angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Hip Flexion Angle R: Definition: Right hip flexion/ extension joint angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Hip Add Angle L: Definition: Left hip joint adduction/abduction angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Hip Add Angle R: Definition: Right hip joint adduction/abduction angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Hip IR Angle L: Definition: Left hip joint internal/external rotation angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Hip IR Angle R: Definition: Right hip joint internal/external rotation angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Knee Flexion Angle L: Definition: Left knee joint flexion/ extension angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Knee Flexion Angle R: Definition: Right knee joint flexion/ extension angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Ankle Flexion Angle L: Definition: Left ankle joint flexion/ extension angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Braking Ankle Flexion Angle R: Definition: Right ankle joint flexion/ extension angle at the end of the braking phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) **RSI 10-5 - Concentric Metrics** Concentric Time: Definition: Temporal duration of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Takeoff (s) – Braking End (s) Units: Seconds (s) Concentric Avg Vel: Definition: Average center of mass vertical velocity across the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean (com_velocity)[takeoff:braking_end] Units: Meters per second (m/s) Concentric Peak Vel: Definition: Peak negative center of mass vertical velocity within the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: max (com_velocity) [takeoff:braking_end] Units: Meters per second (m/s) Concentric Avg Force: Definition: Average vertical force production during the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N))[takeoff:braking_end] Units: Newtons (N) Concentric Avg Force Rel: Definition: Average vertical force production during the concentric phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N))[takeoff:braking_end] / mass (kg) Units: Newtons per kilogram (N/kg) Concentric Peak Force: Definition: Peak vertical force production during the concentric phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N))[takeoff:braking_end] Units: Newtons (N) Concentric Peak Force Rel: Definition: Peak vertical force production during the concentric phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N))[takeoff: braking_end] / mass (kg) Units: Newtons per kilogram (N/kg) Concentric Avg RFD: Definition: Average rate of force development during the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N)[takeoff:braking_end] / Concentric Time (s) Units: Newtons per second (N/s) Concentric Avg RFD Rel: Definition: Average rate of force development during the concentric phase normalized to participant’s body mass. Average of 5 jumps based on top 5 jump heights. Calculation: mean(Force(N)[takeoff: braking_end] / Concentric Time (s))/ mass (kg) Units: Newtons per second per kilogram (N/s/kg) Concentric Peak RFD: Definition: Peak rate of force development during the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N)[takeoff:braking_end] / Concentric Time (s) Units: Newtons per second (N/s) Concentric Peak RFD Rel: Definition: Peak rate of force development during the concentric phase normalized to body mass. Average of 5 jumps based on top 5 jump heights. Calculation: max(Force(N)[takeoff:braking_end] / Concentric Time (s) / mass(kg). Units: Newtons per second per kilogram (N/s/kg) Concentric Torso Angle: Definition: Segment angle of the torso at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Hip Flexion Angle L: Definition: Left hip joint flexion/ extension angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Hip Flexion Angle R: Definition: Right hip flexion/ extension joint angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Hip Add Angle L: Definition: Left hip joint adduction/abduction angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Hip Add Angle R: Definition: Right hip joint adduction/abduction angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Hip IR Angle L: Definition: Left hip joint internal/external rotation angle at the end of the concentric phase. Calculation: Average of 5 jumps based on top 5 jump heights. Units: Degrees (°) Concentric Hip IR Angle R: Definition: Right hip joint internal/external rotation angle at the end of the concentric phase. Calculation: Average of 5 jumps based on top 5 jump heights. Units: Degrees (°) Concentric Knee Flexion Angle L: Definition: Left knee joint flexion/ extension angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Knee Flexion Angle R: Definition: Right knee joint flexion/ extension angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Ankle Flexion Angle L: Definition: Left ankle joint flexion/ extension angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) Concentric Ankle Flexion Angle R: Definition: Right ankle joint flexion/ extension angle at the end of the concentric phase. Average of 5 jumps based on top 5 jump heights. Calculation: Units: Degrees (°) rsi_10-5.txt Last modified: 14 months agoby ethan Log In