本研究以入名圈中男子羽球代表隊為對象，平均年齡為15歲。探討改變訓練時段前後，在不同時間，對握力、垂直跳、反覆跳及全身反應時間等測驗成績的影響。並收集體溫，觀察其變化。結果顯示，←)改變訓練時段前動作反應時間測驗成績，訓練時段高於非訓練時段(t'= - 1.888)，但未達顯著水準(p> 0.05) 0 (三)改變訓練時段前反覆側跳(t=-5.173)、握力(t=- 5.003)、 垂直跳(t=- 6.964)等測驗成績訓練時段均高於非訓練時段，且達顯著水準 (p < 0.05)。日改變訓練時段後動作反應時間(t =一0.459)、反覆倒跳(t= -1.375)、握力(t =一1.331)、垂直跳(t=一0.800)等項目測驗成績，訓練時段均高於非訓練時段，但未達顯著水準(p>0.05)。制改變訓練時段 後，選手之日間體體溫節奏未受影響。

Thestudy was conducted by 8 subjects， junior high school male badminton players. Themean age was 15 years old. We investigated the effect of changing training time on grip strength， vertical jump， side step and total reaction time performance. We also collect the data of body temperature status. Theresults showed: l.Themovement reaction time is greater in training time than non-training time while before changing the training time， but not significantly (P> .05). 2. The performance of side step， grip strength and vertical jump is better in training time than non-training time (P < .05) while before training time. 3.The performance of movement reaction time， side step and vertrcal jump is better in training time than non-training time while after changing training time， but not signficantly(P < .05). 4. The body temperature rhythm doesn't change after changing training time.