| 摘要: | 目的：本研究旨在透過四週增強式訓練的介入，探討11歲男童下肢爆發力、停止訓練與訓練負荷各項參數之變異。方法：以平均年齡11.1±0.31歲之男童29名為研究對象，依不同訓練背景以立意取樣分成二組（實驗組PTG15名、對照組CG14名）。PTG為一般學生，除學校體育課程外，另實施每週三次，共四週的增強式訓練；CG維持學校體育課程正常實施。兩組分別進行二類測驗(T1)：（1）垂直跳（2）短距衝刺跑。PT組增強式訓練結束後，依不同之訓練情境：訓練4週之後測 (T2)、停訓2週 (T3) 、停訓4週 (T4)，收集垂直跳、短距衝刺表現及Session-RPE (S-RPE)內在訓練負荷相關數值。進行混合設計二因子 (組別×時間) 變異數分析，統計顯著水準定為α = .05。結果：(1)PTG在10M、10-20M、20M衝刺跑等前後測成績Δ(T1- T2)之平均差值分別為0.04±0.02秒、0.06±0.09秒、0.14±0.11秒，20公分深跳：Δ(T1- T3) 之平均值差值為-1.72±0.41公分，皆達統計上之顯著水準(P<0.05)。(2) 20公分深跳：Δ(T2- T4)，10公尺衝刺：Δ(T2- T4)，10-20公尺間衝刺：Δ(T2- T3)，平均差值為 -0.58±0.4公分、0.01±0.02秒、-0.05±0.04秒，均未達統計上之顯著差異(P>0.05)。(3)體育課程S-RPEΔ(T2- T4)：PTG與CG的平均差值為268±96.7，達統計上之顯著水準(P<0.05)。結論：四週增強式訓練介入下，可提升11歲國小男童垂直跳、20M衝刺表現；二週與四週之停止訓練均具有保留效果存在；四週停止訓練期間，PTG體育課程之S-RPE顯著大於CG，顯示PTG未察覺的疲勞確實存在。
Purpose: The purposes of this study were to investigate the conse-cutive four weeks plyometric training, and were to aim to monitor plyometric training load and explore the effects of plyometric training onthe lower-limb explosive strength of 11-year-old boys. Methods: Our main research subjects were 29 boys whose average age were eleven years old. The subjects were divided into two groups which were plyometric training group (PTG) and control group (CG). PTG were trained three days per week during four weeks section, and performed various plyometric exercises intensities with S-RPE monitoring. The subsequent detraining period were lasting 2 weeks (T3) and 4 weeks(T4). However, all subjects had been conti-nuing their formal physical education program. Vertical jumping height, sprint running time and S-RPE data improving were calculated: T1-T2 (Pre-test-Posttest), T2-T3 (Detraining 0-2 weeks) , T3-T4 (Detraining 3-4 weeks).The mix design two way ANOVA (group×time) were applying for data analysis and the significant level α were set at .05. Results:(1) The ave-rage difference of the PTG on the10M, 10-20M,20M sprint, 20 CM drop jump the four test scores were 0.04±0.02s,0.06±0.09s,0.14±0.11s, -1.72±0.41cm, which had statistical significant difference(p<0.05). (2) Both two-
week and four-week training suspension in the 20CM drop jump, 10M, 10-20M sprint test scores showed on average as -0.58±0.4cm, 0.01±0.02s,0.05±0.04s, respectively, which had no significant difference (p> 0.05). (3)S-RPE scores with physical education program during Detraining period (T2-T4) showed an average difference between PTG and CG as 268±96.7,
which did reach statistical significant difference (p< 0.05).Conclusion: Under the practice of the four weeks plyometric training, the elementary school boys showed enhancements on the vertica jump, 20M sprinting performance, while the two-week and four-week training suspension showed retention effects.During detraining period, PTG’s larger S-RPE scores which were compared with CG did tell stories. |
