|Title:||行政院國家科學委員會補助專題研究計畫成果報告:不同肌力訓練計畫對腦性麻痺兒童粗動作功能之效果(1/3)||Authors:||廖華芳||Keywords:||腦性麻痺;坐站活動;阻力測試;肌電圖;肌力訓練;cerebral palsy;sit to stand;resistive testing;electromyography;strength training||Issue Date:||2000||Publisher:||臺北市：國立臺灣大學醫學院物理治療學系暨研究所||Abstract:||
歲一般兒童與痙攣型CP 兒童各16 位；於間隔一星期內進行2 次坐/站最大荷重測試，
分析不同日再測信度及1RM、6RM 與10RM 之相關；並在坐/站活動10RM、6RM、
1RM 阻力值及無阻力等4 種情況下，以電子量角器電壓式開關及肌電訊號收集及分析
6RM、10RM 阻力值之再測信度良好（ICC>0.88）；3 個阻力值有高度相關（R ³0.99）。
收肌於1RM 時最大肌電值比值顯著高於10RM。CP 兒童互為拮抗肌比值與共同收縮
依據8 個指標，建議10RM 比1RM、6RM 較適合做為CP 兒童之訓練阻力。不同功能
According to the new concept, resistance exercise with functional movement pattern
( such as sit to stand) may bring about greater functional improvement. Which amount of
loading may cause the side-effect in cerebral palsy (CP) children. Purposes: (1) examining
the test-retest reliability of repetitive maximum test (10RM, 6RM, and 1RM) during sit-tostand
task in ND children; (2) investigating the movement time and electromyography
activities of lower extremity muscles in different loading amount during sit-to-stand task.
Method: Sixteen non-disabled (ND) children and sixteen CP children with agedrange 6-12
years were included. The measurements of sit-stand repetition maximum (10RM, 6RM, 1RM)
were tested with an one-week interval to test the test-retest reliability. Electromyography
system, electro-goniometer and switches were used to collect the data of movement time and
electromyography activities of muscles of dominant leg (gluteus maximum, abductor,
adductor, medial hamstrings, vastus lateralis, tibialis anterior, medial gastrocnemius) in 3
loading conditions. Result and Discussion: Test-retest reliability was good in both groups
(ICC 0.86 – 0.96). The loads of 10RM, 6RM and 1 RM were highly correlated (r = 0.99 –1.0).
The movement time of each phase of standing up was longer with increasing resistance in
both groups. There were significant differences between the movement time in 1RM, 6RM
and NW conditions. Also, CP children took longer time to stand up than ND children in
higher resistance condition (6RM, 1RM). In CP children, more children showed normal
phasing of muscle contractions when they performed the sit to stand task with resistance than
without weight. The normal phasing is that from sitting to standing that the onset of muscle
activities begin from tibialis anterior, followed by vastus lateralis and then gluteus maximus.
The onset of muscle activities of most muscles was earlier and took longer time to reach
maximum amplitude in CP children while comparing to that of ND children. The normalized
maximal activities of muscles of lower extremities increased with increasing resistance.
Neither the ratio of normalized maximal activities of couples of agonists and antagonists nor
co-contraction ratio did not reveal any significant differences in different loading conditions.
From the results of this stady, the authors use 8 indicators to evaluate which loas can cause
better strengthening effects and induce less side effects for CP children. Authors suggest
10RM better than 1RM and 6RM. Conclusion: Sit-to-stand repetition maximum tests is
reliable in CP and ND children. From the results of Movement time and EMG activities of LE
were different in various loads, The authors suggest using 10RM for functional resistance
training for CP children. The loading effects in different functional tasks effects of functional
strengthening program for CP children need further investigations.
|Appears in Collections:||物理治療學系所|
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