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Title: 四週藥球訓練對國中學生上半身等長肌力與爆發力之影響
Effects of 4 weeks Medicine Ball Training on Upper Body Isometric Muscle Strength, Upper Body Power and Fitness on Junior High School Students
Authors: 鄭芸;蔡忠昌
Contributors: 應用運動科學所
Keywords: 青少年;藥球訓練;增強式訓練;核心肌群;Adolescent;Medicine ball training;Plyometric Training;Core muscle
Date: 2010-06
Issue Date: 2012-02-09T06:10:19Z
Publisher: 中華民國運動教練協會; 國立臺灣大學體育室
Abstract: 本研究目的在探討四週藥球訓練對國中學生上半身等長肌力、爆發力與體適能之影響,並探究坐姿藥球擲遠與上半身肌力、爆發力與體適能相關性。實驗參與者為146位國中學生,平均年齡14.0 ± 0.3歲,其中男生80位,女生66位。實驗組在四週正規體育課中每節加入10-15分鐘藥球訓練,控制組則進行四週一般體育課。訓練前後分別進行上半身等長肌力、上半身爆發力與體適能等三項測量。上半身等長肌力以手持式等長肌力測力器測量下背、腹部、肩關節水平內收及外展、手肘屈曲等五關節動作等長肌力。上半身爆發力則以坐姿藥球胸推及側向擲遠評估。體適能測量立定跳遠、坐姿體前彎及仰臥起坐。所得資料以混合設計二因子變異數分析及逐步回歸分析考驗,研究統計顯著水準訂為α = 0.05。結果顯示四週藥球訓練後,實驗組男生腹部屈曲、右肩水平內收、左肩水平內收等三部位等長肌力顯著增加,增加百分比分別為25.8%、14.5%與9.9%,坐姿藥球擲遠在胸推、右側及左側投擲也顯著增加,增加百分比分別為11.7%、21.0%與24.9%,立定跳遠、仰臥起坐30秒及60秒亦顯著增進,增加百分比分別為3.6%、8.7%與8.4%。實驗組女生在下背、腹部、肩水平右左側內收、肘右左側屈曲等6項等長肌力表現皆有顯著增加,增加百分比分別為7.1%、38.1%、14.9%、14.6%、11.5%與10.5%,坐姿藥球擲遠在胸推、右側及左側投擲也顯著增加,增加百分比分別為15.1%、26.8%與33.2%,仰臥起坐60秒亦顯著增加14.4%。坐姿藥球擲遠與上半身肌力、爆發力、體適能相關性方面,男生以坐姿藥球胸推擲遠、體重及仰臥起坐60秒次數能解釋55.3%上半身等長肌力總和(包含下背、腹部、肩左右水平內收及外展、肘左右屈曲等8個關節動作等長肌力)之變異量,女生以坐姿藥球胸推擲遠、體重及立定跳遠能解釋45.5%上半身等長肌力總和變異量。根據本研究結果,四週藥球訓練對於國中學生上半身等長肌力、上半身爆發力及體適能有顯著增進效果,尤其是腹部等長肌力以及上半身之左右協調性與爆發力,建議藥球訓練可常態性地加入體育課程以增進青少年肌力與爆發力發展。此外,坐姿藥球胸推擲遠可以利用於上半身肌力與爆發力的檢測。
The purpose of this study was to examine the effects of 4 weeks medicine ball training on upper body isometric muscle strength, upper body power and physical fitness in adolescents. In addition, correlations of isometric muscle strength of upper body, and physical fitness with seated medicine ball throwing were also examined. 146 junior-high school students (14.0 ± 0.3 years, 80 males and 66 females) were recruited to join the study and divided into two groups. In the experimental group, 15 minutes of medicine ball training was added in physical education (PE) lessons of for 4 weeks. The control group took regular PE lessons during the same time. All the subjects took several measurements at the 0, 4th, 8th, 12th week. Isometric muscle strengths of upper body including lumbar extension, lumbar flexion, shoulder horizontal abduction and elbow flexion were measured with a hand-held dynamometer. Upper body power was assessed by throwing the medicine ball seated (S-MBT) with chest pass, left side pass, and right side pass. Physical fitness including sit and reach, standing long jump, abdominal curls in 30 and 60 seconds were also tested. The data were analyzed with two-way ANOVA and step-wise logistic regression methods. Statistical significance set as α = .05. The results showed that in boys of the experimental group, isometric strengths of lumbar flexion, right shoulder horizontal abduction, and left shoulder horizontal abduction were 25.8%, 14.5%, and 9.9% increased, respectively, after 4 weeks of medicine throwing. Seated medicine ball throwing of chest pass, left side pass, and right side pass were 11.7%, 21.0%, and 24.9% increased, and standing long jump, abdominal curls in 30 seconds and 60 seconds were 3.6%, 8.7% and 8.4% increased in comparison to the control group. Girls of the experimental group showed gains in all isometric strength measured the three S-MBT tests and abdominal curls in 60 seconds in comparison to the control group. Step-wise logistic regression analysis showed that in boys, S-MBT with chest pass, body weight and abdominal curls in 30s shared 55.3% of the variance (R2) in prediction of the upper body strength (sum of the isometric muscle strengths measured), and in girls, S-MBT with chest pass, body weight and standing long jump shared 45.5% of the variance in prediction of the upper body strength. In conclusion, 4 weeks of medicine ball training can enhance the strength and power of upper body in adolescents. It is suggested that medicine ball training could be added in PE lessons for increasing the strength and power of core muscle in adolescent. Moreover, S-MBT chest pass can be an alternative test for assessing explosive power of the upper body.
Relation: 2010學校運動教練科學學術研討會, June 12-13, 2010
Appears in Collections:[應用運動科學研究所] 會議論文

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