Table 1 Number of principal components necessary to explain 90% of the variance within the time series of every selected variable.

From: Rollator usage lets young individuals switch movement strategies in sit-to-stand and stand-to-sit tasks

 

Sit-to-stand

Stand-to-sit

Non-challenging

Challenging

Non-challenging

Challenging

GRF medio-lateral

3

5

5

8

GRF anterior–posterior

4

6

6

8

GRF vertical

3

4

4

5

CoM medio-lateral

2

2

2

2

CoM anterior–posterior

2

2

2

2

CoM vertical

2

2

2

3

Ankle angle sagittal

3

3

3

3

Hip angle sagittal

2

2

2

3

Knee angle sagittal

2

2

2

3

Pelvis-lab angle sagittal

2

2

3

3

Shank-lab angle sagittal

2

2

2

3

Thigh-lab angle sagittal

2

3

2

3

CoM-heel angle sagittal

2

2

2

2

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