Ignite Creation Date:
2024-05-05 @ 11:51 AM
Last Modification Date:
2024-10-26 @ 9:15 AM
Study NCT ID:
NCT00155948
Status:
COMPLETED
Last Update Posted:
2005-12-20
First Post:
2005-09-09
Brief Title:
Estimation of Muscle Area and Thickness of Deep Cervical Muscle Contraction During Cervical and Limb Movements
Sponsor:
National Taiwan University Hospital
Organization:
National Taiwan University Hospital
Study Overview
Official Title:
Estimation of Muscle Area and Thickness of Deep Cervical Muscle Contraction During Cervical and Limb Movements
Status:
COMPLETED
Status Verified Date:
2004-04
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purpose of this study is to investigate the validity and reliability of measurement for cervical multifidus using ultrasonography and to investigate cervical multifidus muscle function by the change pattern of multifidus thickness and to compare the changes in muscle thickness among different resistance levels rest 25 50 75 and 100 and different cervical levels C4 C5 and C6
Detailed Description:
Cervical multifidus has specific sensory and motion function However it was unclear about muscle architectural change of cervical multifidus during head retraction manoeuvre with progressive resistance The validity and reliability of measuring cervical multifidus using ultrasonography hasnt been proven
In the pilot study thickness width and area of multifidus were measured at C4 C5 and C6 were measured using MRI and ultrasonography The limit of agreement and the regression analysis were used to compare the results of two modalities Besides muscle thickness was repeatedly measured during the static and head retraction manoeuvre using ultrasonography by the same rater on the same day the CVw and CVb were used to investigate reliability In the main study multifidus architecture measured in twenty asymptomatic subjects 24347 yo 5 women and 15 men during head retraction manoeuvre with progressive resistance and during relaxation using ultrasonography apparatus with 10MHz linear transducer ANOVA with repeated measurement and post-hoc analysis were to investigate the difference among different cervical levels and resistance force levels
The results of the pilot study showed that the limit of agreement was 020 cm and the moderate level of correlation R2 ranged in 042064 for muscle thickness measured between MRI and ultrasonography For muscle thickness the CVw values under static and under head retraction against maximum resistance were lower than 10 In the main study there was a curvilinear relationship between muscle thickness change and resistance and the quadratic equations were the proper curves for estimation There was significant difference of muscle thickness change within 50 of maximum retraction against resistance and there was no significant difference among three cervical levels It was suggested that muscle at C6 relaxed more slowly during the period from the beginning of relaxation
In conclusion the present study built a valid and reliable method for measuring continuous and dynamic changes of muscle thickness using ultrasonography The results supported muscle function of cervical multifidus for segmental stability but not for force production
In the pilot study thickness width and area of multifidus were measured at C4 C5 and C6 were measured using MRI and ultrasonography The limit of agreement and the regression analysis were used to compare the results of two modalities Besides muscle thickness was repeatedly measured during the static and head retraction manoeuvre using ultrasonography by the same rater on the same day the CVw and CVb were used to investigate reliability In the main study multifidus architecture measured in twenty asymptomatic subjects 24347 yo 5 women and 15 men during head retraction manoeuvre with progressive resistance and during relaxation using ultrasonography apparatus with 10MHz linear transducer ANOVA with repeated measurement and post-hoc analysis were to investigate the difference among different cervical levels and resistance force levels
The results of the pilot study showed that the limit of agreement was 020 cm and the moderate level of correlation R2 ranged in 042064 for muscle thickness measured between MRI and ultrasonography For muscle thickness the CVw values under static and under head retraction against maximum resistance were lower than 10 In the main study there was a curvilinear relationship between muscle thickness change and resistance and the quadratic equations were the proper curves for estimation There was significant difference of muscle thickness change within 50 of maximum retraction against resistance and there was no significant difference among three cervical levels It was suggested that muscle at C6 relaxed more slowly during the period from the beginning of relaxation
In conclusion the present study built a valid and reliable method for measuring continuous and dynamic changes of muscle thickness using ultrasonography The results supported muscle function of cervical multifidus for segmental stability but not for force production
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None