Biomechanics-sprint start kinematics repor

Sprint Start Kinematic Data - FINAL Table with Calculated Data

Calculated Data

Subject

Number Subject Name

Performance

Time

= Time from

GO to

Shoulder at

2.000 metres

from start line

(s)

Block

Acceleration

= HIP X velocity

at block

clearance

divided by total

block time

(m/s/s)

Set Position

Vertical Height

of HIP Above

SHOULDER

Positive = HIP

above

SHOULDER

(m)

Reaction Time

= Time from

GO to first

visible

distinctive

starting

movement

(s)

REAR Foot Block

Time (Pushing

Time Rear Block

[PTRB])

= Time from

first visible

distinctive

starting

movement to

REAR foot

clearance

(s)

Possible Data for Results YES YES YES YES YES

FAST Group

1 Subject1 0.92 5.45 0.19 0.22 0.22

2 Subject2 0.97 5.02 0.16 0.16 0.20

3 Subject3 0.98 0.00 0.03 0.21 0.20

4 Subject4 0.99 4.53 0.18 0.08 0.33

5 Subject5 1.02 4.19 -0.04 0.21 0.29

MEAN 0.98 3.84 0.10 0.18 0.25

Standard Devn. 0.04 2.20 0.10 0.06 0.06

SLOW Group

6 Subject6 1.02 2.61 -0.11 0.14 0.32

7 Subject7 1.10 3.19 0.00 0.15 0.25

8 Subject8 1.13 0.00 0.00 0.23 0.25

9 Subject9 1.17 3.52 0.25 0.24 0.37

10 Subject10 1.22 2.91 -0.16 0.21 0.24

MEAN 1.13 2.45 0.00 0.19 0.29

1.58 #DIV/0! 0.08 1.41 0.16 0.05 0.06

Total Block

Pushing Time

= Time from

first visible

distinctive

starting

movement to

FRONT foot

clearance

(s)

Percentage

Pushing Time

Rear Block

[%PTRB])

= Rear foot

block time

divided by total

block time

(%)

Total Block

Time

= Time from

GO to FRONT

foot clearance

(s)

First Stance

Flight Time

= Time from

front foot

clearance to

first step touch

down

(s)

First Stance

Contact Time

= Time from

first step touch

down to toe-off

(s)

Stride Time of

First Stride

= Time from

REAR foot

clearance to

first stance take-

off

(s)

Stride Length of

First Stride

= Distance from

TOE in set

position to TOE

at first step

touch down

(m)

YES YES YES YES YES YES YES

0.45 33 0.67 0.08 0.19 0.50 1.49

0.48 31 0.64 0.01 0.24 0.53 1.43

0.46 30 0.67 0.03 0.20 0.49 1.52

0.64 46 0.72 0.01 0.29 0.61 2.05

0.56 38 0.77 0.03 0.25 0.55 2.15

0.52 35 0.69 0.03 0.23 0.54 1.73

0.08 6 0.05 0.03 0.04 0.05 0.34

0.62 42 0.76 0.04 0.23 0.57 1.660

0.58 34 0.73 0.04 0.25 0.62 1.510

0.45 37 0.68 0.06 0.16 0.42 0.000

0.64 42 0.88 0.02 0.21 0.50 1.710

0.53 32 0.74 0.02 0.22 0.53 0.000

0.56 38 0.76 0.04 0.21 0.53 0.98

0.08 4.43 0.07 0.02 0.03 0.08 0.89

Sprint Start Kinematic Data - Table 1

Video Frame No. at Significant Moments OBTAINED DURING Digitising

Block Exit STEP

Length =

Distance from

Front TOE in set

position to Rear

TOE at first step

touch down

(m)

Amount of

ANKLE Joint

DORSI-

FLEXION

During First

Stance Phase

(Deg)

Amount of HIP

Joint

EXTENSION

During REAR

Foot Block

Time

(Deg)

Data not

available, as

should have

been HIP angle

at REAR

FOOT

Clearance!

Distance HIP is

Ahead of TOE

at First Step

Touch Down

Negative = HIP

behind TOE

(m)

Trial

Number Subject Name

Synchron-

isation light on

(Set position)

Frame No.

YES YES Not Available YES

0.97 27.1 -0.28 Subject1 77

0.72 7.1 -0.53 Subject2 77

0.86 28.4 -0.43 Subject3 761

1.24 57.9 -0.80 Subject4 187

1.06 10.0 -0.72 Subject5 247

0.97 26.1 -0.55 MEAN 270

0.20 20.2 0.21 Standard Devn. 284

2.510 12.3 -0.530 Subject6 121

0.700 0.8 -1.130 Subject7 168

-0.640 49.5 0.000 Subject8 267

0.730 8.5 -0.620 Subject9 377

-0.730 6.0 0.000 Subject10 356

0.51 15.4 -0.46 MEAN 258

1.32 19.48 #DIV/0! 0.48 #DIV/0! #DIV/0! 112.60

Sprint Start Kinematic Data - Table 1

Video Frame No. at Significant Moments OBTAINED DURING Digitising Semi-quantitative Data in Set Position OBTAINED IN LAB

First visible

distinctive

starting

movement

Frame No.

Rear foot

clearance

Frame No.

Front foot

clearance

Frame No.

First step touch

down Frame

No.

First step

take-off

Frame No.

Horizontal

distance of

SHOULDER

to start line

Positive = in

front, Negative

= behind

(m)

Horizontal

distance of

rear TOE

to start line

(m)

YES

99 121 144 152 171 0.03 0.76

93 113 141 142 166 0.03 1.10

782 802 828 831 851 -0.05 0.95

195 228 259 260 289 -0.10 1.04

268 297 324 327 352 0.06 1.25

287 312 339 342 366 -0.01 1.02

286 284 284 284 283 0.07 0.18

135 167 197 201 224 -0.05 -0.97

183 208 241 245 270 -0.11 1.03

290 315 335 341 357 -0.02 0.84

401 438 465 467 488 -0.02 1.06

377 401 430 432 454 0.05 0.75

277 306 334 337 359 -0.03 0.54

116.77 117.74 115.97 115.00 113.81 0.06 0.86

Sprint Start Kinematic Data - Table 2

Semi-quantitative Data in Set Position OBTAINED IN LAB FROM Digitised Data Set Position

Vertical

distance of

SHOULDER

to start line

cross ground

level

(m)

Vertical

distance of

HIP

to start line

cross ground

level

(m)

Horizontal

distance between

rear and front

foot TOE location

(Block Spacing)

(m)

Trial

Number Subject Name

Set Position

Rear HIP

Joint Angle

(Deg)

Set Position

Rear KNEE

Joint Angle

(Deg)

YES YES YES

0.61 0.8 0.52 Subject1 64.39 113.76

0.60 0.76 0.71 Subject2 93.2 131.9

0.66 0.69 0.66 Subject3 91.8 112.1

0.64 0.82 0.81 Subject4 95.5 148.1

0.68 0.64 1.09 Subject5 138.0 45.8

0.64 0.74 0.76 MEAN 96.6 110.3

0.03 0.08 0.21 Standard Devn. 26.4 39.0

-0.55 -0.66 -0.85 Subject6 93.85 128.37

0.49 0.49 0.81 Subject7 137.47 164.54

0.64 0.64 0.64 Subject8 87 93

0.59 0.84 0.98 Subject9 93.41 160.35

0.62 0.46 0.73 Subject10

0.36 0.35 0.46 MEAN 102.9 136.6

0.51 0.59 0.74 #DIV/0! #DIV/0! 23.24 33.23

Block Phase / Block Clearance

Set Position

HIP

X Location

(m) (This

data is 0.000

due to new

software used

this year)

Set Position

HIP

Y Location

(m)

(This data is

0.000 due to

new software

used this year)

Set Position

SHOULDER X

Location (m)

(This data is

0.000 due to

new software

used this year)

Set Position

SHOULDER Y

Location

(m)

(This data is

0.000 due to

new software

used this year)

Set Position

TOE

X Location

(m)

(This data is

0.000 due to

new software

used this year)

Hip JOINT

Peak

EXTENSION

Angular

Velocity During

Block Phase

(Deg/s)

Knee JOINT

Peak

EXTENSION

Angular

Velocity During

Block Phase

(Deg/s)

YES YES

0 0 0 0 0 418.27 415.99

0 0 0 0 0 173.2 325.7

0 0 0 0 0

0 0 0 0 0 311.4 382.3

0 0 0 0 0 327.7 540.8

0 0 0 0 0 307.6 416.2

0 0 0 0 0 101.2 91.0

0 0 0 0 0

0 0 0 0 0 143.5

0 0 0 0 0 140.0 138.0

0 0 0 0 0 94.0 142.6

0 0 0 0 0 155.0 165.0

0 0 0 0 0 133.1 148.5

0.00 0.00 0.00 0.00 0.00 26.87 14.44

Sprint Start Kinematic Data - Table 3

Block Phase / Block Clearance FROM Digitised Data Block Phase / Block Clearance

Block

Clearance

Rear Hip

JOINT Angle

(Deg)

Data not

needed, as

should have

been angle at

REAR FOOT

clearance not

BLOCK

clearance!

Block

Clearance

HIP

Y Location

(m)

Trial

Number Subject Name

Block

Clearance

HIP

X Location

(m)

HIP

Y Velocity at

Block

Clearance

(m/s)

HIP

X Velocity at

Block

Clearance

(m/s)

YES YES YES

0.09 Subject1 0.94 0.54 3.65

0.11 Subject2 0.87 0.11 3.21

0.01 Subject3 0.36

0.02 Subject4 1.21 -0.13 3.26

Subject5 1.34 0.24 3.23

0.06 MEAN 1.09 0.22 3.34

0.05 Standard Devn. 0.22 0.25 0.21

0.05 Subject6 1.01 0.1 1.98

0.18 Subject7 0.82 -0.21 2.33

Subject8

0.02 Subject9 1.03 -0.23 3.10

Subject10 2.17 2.15

0.08 MEAN 0.95 0.46 2.39

#DIV/0! 0.09 #DIV/0! #DIV/0! 0.12 1.15 0.49

First Stance Shoulder at 2.000 metres FROM START LINE

First Stance

Touchdown

HIP

X Location

(m)

First Stance

Touchdown

TOE

X Location

(m)

First Stance

Take-Off

HIP

X Location

(m)

First Stance

Touchdown

ANKLE Joint

Angle

(Deg)

Minimum

ANKLE Joint

Angle During

First Stance

Phase

(Deg)

Shoulder at 2.000

metres FROM

START LINE

(Need to subtract or

add X distance of

shoulder from

START LINE in set

position, to identify

CORRECT Frame

No.)

Frame No.

HIP

X Velocity

at 2.000 metres

FROM START

LINE

(m/s)

YES YES YES

1.21 1.49 1.8 105.9 78.7 169 4.52

0.9 1.43 1.65 123.8 116.7 174 4.89

1.09 1.52 1.80 144.1 115.7 859 4.87

1.25 2.05 2.30 154.2 96.3 286 4.82

1.43 2.15 2.28 128.5 118.5 349 4.78

1.18 1.73 1.97 131.3 105.2 367 4.78

0.20 0.34 0.30 18.7 17.3 285 0.15

1.13 1.66 1.89 119.3 107.0 223 4.36

0.38 1.51 1.54 113.2 112.3 278 3.43

147.2 97.8 380 3.70

1.09 1.71 1.81 111.5 103.0 494 4.74

101.5 95.5 478

0.87 1.63 1.75 118.5 103.1 371 4.06

0.42 0.10 0.18 17.27 6.85 119.59 0.60

Shoulder at 2.000 metres FROM START LINE

Time from GO to

Shoulder at 2.000

metres FROM

START LINE

(s)

YES

0.92

0.97

0.98

0.99

1.02

0.98

0.04

1.02

1.10

1.13

1.17

1.22

1.13

0.08