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Analysis of Vertical Ground Reaction Force Variables Using Foot Scans in Hemiplegic Patients.

Kim HD, Kim JG, Jeon DM, Shin MH, Han N, Eom MJ, Jo GY - Ann Rehabil Med (2015)

Bottom Line: The GRF results were compared between the hemiplegic patients and control individuals, and between the affected and unaffected limbs of hemiplegic patients.The MAS, Brunnstrom stage and Timed Up and Go Test results were significantly correlated with the VFI of the unaffected limbs (p<0.05).Therefore, these results suggest that unaffected limbs should also be taken into consideration in these patients.

View Article: PubMed Central - PubMed

Affiliation: Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.

ABSTRACT

Objective: To analyze the differences in the vertical ground reaction force (GRF) variables of hemiplegic patients compared with a control group, and between the affected and unaffected limbs of hemiplegic patients using foot scans.

Methods: Patients (n=20) with hemiplegia and healthy volunteers (n=20) underwent vertical force analysis. We measured the following: the first and second peak forces (F1, F2) and the percent stances at which they occurred (T1, T2); the vertical force impulse (VFI) and stance times. The GRF results were compared between the hemiplegic patients and control individuals, and between the affected and unaffected limbs of hemiplegic patients. Additionally, we analyzed the impulse of the unaffected limb according to the motor assessment scale (MAS), Brunnstrom stage, and a Timed Up and Go Test.

Results: The F1s and F2s of the affected and unaffected limbs were significantly less than those of the normal control individuals (p<0.05). The T1s of both the affected and unaffected limbs of the patients were greater than control individuals, whilst the T2s were lower (p<0.05). Greater impulses and stance times were recorded on both sides of the patients than in the limbs of the control individuals (p<0.05). The MAS, Brunnstrom stage and Timed Up and Go Test results were significantly correlated with the VFI of the unaffected limbs (p<0.05).

Conclusion: The high impulse values of the unaffected limb were associated with complications during gait rehabilitation. Therefore, these results suggest that unaffected limbs should also be taken into consideration in these patients.

No MeSH data available.


Related in: MedlinePlus

A hemiplegic patient who is performing gait analysis with insoles in shoes and with a preamplifier attached to ankle with Velcro (left) and main component of the F-Scan system (right).
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Figure 1: A hemiplegic patient who is performing gait analysis with insoles in shoes and with a preamplifier attached to ankle with Velcro (left) and main component of the F-Scan system (right).

Mentions: In the test, pressure insoles were fitted onto the patients' feet, and the patients were asked to walk around for 5 minutes in shoes with 1-cm heels for acclimatization prior to the actual test. The patients then stood on one leg for approximately 5 seconds, and the results were corrected by weight. The tests were performed on a hard, flat surface, and the measurements were made at each subject's normal gait speed (Fig. 1). Each subject had enough practice to adapt to walking while wearing the equipment; for accuracy, tests were performed five times, and the test result with a normal gait speed and stride was selected. For patients who used an orthosis, the test was performed after its removal.


Analysis of Vertical Ground Reaction Force Variables Using Foot Scans in Hemiplegic Patients.

Kim HD, Kim JG, Jeon DM, Shin MH, Han N, Eom MJ, Jo GY - Ann Rehabil Med (2015)

A hemiplegic patient who is performing gait analysis with insoles in shoes and with a preamplifier attached to ankle with Velcro (left) and main component of the F-Scan system (right).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4496512&req=5

Figure 1: A hemiplegic patient who is performing gait analysis with insoles in shoes and with a preamplifier attached to ankle with Velcro (left) and main component of the F-Scan system (right).
Mentions: In the test, pressure insoles were fitted onto the patients' feet, and the patients were asked to walk around for 5 minutes in shoes with 1-cm heels for acclimatization prior to the actual test. The patients then stood on one leg for approximately 5 seconds, and the results were corrected by weight. The tests were performed on a hard, flat surface, and the measurements were made at each subject's normal gait speed (Fig. 1). Each subject had enough practice to adapt to walking while wearing the equipment; for accuracy, tests were performed five times, and the test result with a normal gait speed and stride was selected. For patients who used an orthosis, the test was performed after its removal.

Bottom Line: The GRF results were compared between the hemiplegic patients and control individuals, and between the affected and unaffected limbs of hemiplegic patients.The MAS, Brunnstrom stage and Timed Up and Go Test results were significantly correlated with the VFI of the unaffected limbs (p<0.05).Therefore, these results suggest that unaffected limbs should also be taken into consideration in these patients.

View Article: PubMed Central - PubMed

Affiliation: Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.

ABSTRACT

Objective: To analyze the differences in the vertical ground reaction force (GRF) variables of hemiplegic patients compared with a control group, and between the affected and unaffected limbs of hemiplegic patients using foot scans.

Methods: Patients (n=20) with hemiplegia and healthy volunteers (n=20) underwent vertical force analysis. We measured the following: the first and second peak forces (F1, F2) and the percent stances at which they occurred (T1, T2); the vertical force impulse (VFI) and stance times. The GRF results were compared between the hemiplegic patients and control individuals, and between the affected and unaffected limbs of hemiplegic patients. Additionally, we analyzed the impulse of the unaffected limb according to the motor assessment scale (MAS), Brunnstrom stage, and a Timed Up and Go Test.

Results: The F1s and F2s of the affected and unaffected limbs were significantly less than those of the normal control individuals (p<0.05). The T1s of both the affected and unaffected limbs of the patients were greater than control individuals, whilst the T2s were lower (p<0.05). Greater impulses and stance times were recorded on both sides of the patients than in the limbs of the control individuals (p<0.05). The MAS, Brunnstrom stage and Timed Up and Go Test results were significantly correlated with the VFI of the unaffected limbs (p<0.05).

Conclusion: The high impulse values of the unaffected limb were associated with complications during gait rehabilitation. Therefore, these results suggest that unaffected limbs should also be taken into consideration in these patients.

No MeSH data available.


Related in: MedlinePlus