• 期刊

不同構造方式網球拍振動響應分析

本研究目的是探討兩支不同構造方式網球拍動力學振動響應。研究以Wilson Hyper Carbon Triad 4.0及Wilson Hyper Carbon Pro Staff 5.0網球拍為研究對象。每支球拍皆穿以P&F牌之Fiber Tech網球線，直線及橫線之張力皆為60磅。實驗方法為衝擊實驗法，使用衝擊球唧吸器咬住衝擊球於100公分高度，以自由落體的方式碰撞拍面朝上，水平鉗鋏於測力板的網球拍，應用運動生物力學分析軟體，蒐集及紀錄每支球拍各十次之碰撞實驗資料。實驗所得訊號資料，使用頻譜分析的方式加以整理分析。研究結果發現：一、Wilson Hyper Carbon Triad4.0網球拍在振動響應時間優於Wilson Hyper Carbon Pro Staff 5.0網球拍。二、Wilson Hyper Carbon Triad 4.0網球拍在總振動功率優於Wilson Hyper Carbon Pro Staff 5.0網球拍。

• 期刊

網球拍使用避震器之比較研究

網球運動與科技緊密結合造成網球運動的普遍發展之重要因素之一，而網球拍的材質不斷改進下，仍有希望以便宜簡單的方式減少振動的要求，網球拍面使用的避震器因應而生，然而效果良否，莫衷一是，因此本研究即以現場試驗的方式，限制條件內，量測安裝與無安裝避震器的差異。結果顯示，安裝球型或線型避震器均較沒有安裝者之避震效果要良好，而且安裝位置以靠近握把的拍面下方效果較好，而球型或線型避震器在本實驗中並無顯著的差異。不同球速的差異性則在安裝避震器時可顯現出來，沒有安裝者則無。

• 期刊

高爾夫球鞋功能測試分析

運動鞋的功能主要在增加運動表現及減低運動傷害。鞋子的避震及摩擦力能降低運動傷害，彈性係數則提高運動表現，足底壓力峰值則牽涉到鞋子的舒適度及運動傷害。本研究即針對高爾夫球鞋能否在各項運動生物力學之功能性的表現。以不同之高爾夫球鞋，針對其避震功能、不同材質舖面的地表的最大靜摩擦係數之測試、足底壓力及彈性係數做一比較分析。以提供高爾夫球愛好者的一個參考依據。由本實驗中靜態的材料避震測試及動態避震測試中可發現雖然動靜態測試略有差異，但排序趨勢卻相似。且由A款高爾夫球鞋搭配不同型式鞋墊也影響避震功能的表現。且各式高爾夫球鞋對於不同材質舖面之摩擦係數表現亦有不同的高低表現，這應和鞋底材質及鞋釘造形有很大關係，尤其要維持良好穩定的摩擦係數，鞋釘的排泥性就非常重要了。足底壓力也由於鞋墊形式不同而有明顯差異。所以如何能夠使這些功能表現有一最佳的組合，也是未來值得研究的重要課題。

• 期刊

單次長時間與多次短時間運動對攝氧量之影響

The purpose of this study was to examine the effect of single bout in long duration (SL) and multiple bouts in short duration (MS) on oxygen consumption. Sixteen high school male students were subjects (age: 16.00 ± 0.25yr, VO2rest: 5.09 ± 0.71 ml/kg/min, Hrrest: 75.56 ± 5.56bpm, VO2 max: 51.61 ± 3.34 ml/kg/min, HRmax200.38 ± 7.71 bpm), who performed the same intensity (60%V02max) and total work duration (30 mins) of aerobic exercises. The duration of single bout (SL) was 30 mins, and the duration of each of multiple bouts (MS) was 10 mins. The study was repeated-measures design, and counter balanced. Eight subjects had to exercise single bout in long duration (SL), and the others had to exercise multiple bouts in short duration (MS). The rest duration between every bouts of miltiple bouts in short duration (MS). was at least 3hrs. After 3-days later subjects exercised in different duration from that they did before. Results: the duration of excess post-exercise oxygen consumption (EPOC) of SL:MS was 9.1 ± 2.9 min and 19.0 ± 3.4 min (p＜.05), the magnitude of EPOC of SL:MS was 85.9 ± 21.7 ml/kg/min and 214.8 ± 26.7 ml/kg/min (p＜.05), the total oxygen consumption of SL:MS was 974.4 ± 97.7 ml/kg/min and 1096.3 ± 91.5 ml/kg/min (p＜.05) and the ratio of post-exercise oxygen consumption and the total oxygen consumption of SL:ML was 9.0 ± 2.0% and 20.0 ± 2.0% (p＜.05). Above all were significantly different. But exercise oxygen consumption of SL: MS was 888.4 ± 95.4 ml/kg/min and 881.5 ± 77.6ml/kg/min were not significantly different (p＞.05). Thus, we suggest that if someone does not have a long period of time to do aerobic exercise, but who still wants to waste more energy-interval exercise is a good choice.

• 期刊

跆拳道選手一週訓練期間唾液IgA濃度之變化

許多研究指出，一次高強度或長期的強度運動訓練後，會使唾液免疫球蛋白A （salivary immunoglobulin A; S-IgA）產生變化，但是也有在賽前高強度訓練中沒有改變的結果。由於S-IgA濃度的變化與運動員上呼吸道感染有密切相關，實際訓練對S-IgA影響則是一個值得研究的課題。因此，本研究以景文技術學院跆拳道選手為受試對象，進行一週的跆拳道集會。訓練期間，於早晨訓練前及下午訓練後測量運動員S-IgA濃度，及進行訓練中心跳率與1-10分訓練後自覺分數（rating of perceived exertion; RPE）之記錄，以比較一週集訓期間這些參數變化情形。結果顯示，一週訓練期間，全隊每日訓練前後或每日之間，S-IgA濃度皆無明顯變化。運動員訓練中平均心跳率為140.9 ± 6.3至146.9 ± 9.0 次／分鐘之間，但每日之間的比較無明顯的差異。每日的訓練後RPE分數為7 ± 1.5 - 7.5 ± 1.5之間，一週期間，RPE分數並無明顯的差異。本研究可得以下的結論，在此一週中等強度訓練期間，並不能使跆拳道運動員S-IgA濃度產生明顯變化。

• 期刊

馬拉松競賽對B淋巴球的影響與唾液免疫球蛋白A濃度的變化和恢復情形

The purpose of this study was to investigate effects on B lymphocytes amount and salivary immunglobulin A (s-IgA) concentration by intensive exercise type, for example: marathon, and probe into B Iymphocytes with immunglobulin A recovery states duration a week after the race. Eight long distance running male competitors joined Taipei International marathon race that held by Taipei city government in November 2002. Blood and salivary samples were taken a week before exercise, immediately after the game, the first day and the fifth day after recovery. Besides these, an added follow-up sequence of salivary sample was taken eighth days after the race. B cells percentage of Iymphocytes measured by flow cytometry and salivary immunoglobulin A concentration measured by enzyme-linked immunosorbent assay (ELISA). Result found B Iymphocytes' percentage increased 1.7 folds immediately at the end of race, comparing with pre-race (p＜0.05). Later, decreased and recovered to normal range after 24 hrs. Salivary immunglobulin A concentration decreased immediately after the game and recovered to pre-race level after 24 hrs. From materials above, researchers concluded that B Iymphocytes were differentiation plasma cells and secretion antibodies after the antigen stimulated, that did not inhibited the phenomenon but stimulant activated and proliferated more on B Iymphocytes by high intensity marathon competition. At the same time, salivary immunglobulin A concentration decreased obviously, and both recovered 24 hrs after the race. Competition marathon running induces salivary immunglobulin A concentration decreasing has nothing to do with B Iymphocytes. So B Iymphocytes proliferated may be transported by lower salivary immunglobulin A concentration.

• 期刊

馬拉松賽對粒線體膜電位及細胞自發性死亡影響之研究

Appropriate exercise can promote not only health but also the quality of life. But heavy physical exercise may produce excessive reactive oxygen species and cause damages. In previous study, Tai-Ger Hsu et al. indicated that the heavy physical exercise actually cause the accumulated, damage.The purpose of this study was to evaluate time-sequence changes in the mitochondria transmembrane. We collect the data pre-race,30 min, 24 hour, 72 hour and a week after the marathon race. We find that the mitochondria transmembrane potential (MTP) declined immediately post-race (p＜0.5), PMN gradually increased during the postexercise and reached supranormal levels in 72 hours affter the race, and the density of lipid peroxidation (LPO) increased obviously.We concluded that the immune functions would be disturbanced and it would increase the probabilities of virus and upper rispiration tracts infections.

• 期刊

大專女生性激素、骨代謝與血脂在12週體育教學與有氧運動前後的變化

Sex hormone, bone turnover and blood lipids have a close relationship with individual health regimen. Physical activities are thought to have good effects on sex hormone, bone turnover and blood lipids; however, there are still many controversies. This study tries to investigate the effects of aerobic exercise and physical education class on college girls' sex hormone, bone turnover and blood lipids. Forty-five healthy college female students (age 20-25 year old) volunteered to participate in the study. They were randomly assigned to aerobic group (A), physical education group (PE) and a control group (C) with no training, and received experiments for 12 weeks. Group A received a regular schedule on aerobic exercise (50 minutes each time, two times a week) with the average intensity reaching fifty to seventy percent of the individual HRmax. Group PE focused on neither physical intensity nor any sporting events. They practiced twice a week with each session lasting 50 minutes. Group C was not allowed to participate in any physical activities. Venous blood and urine samples were taken before and after the experiment in a resting state (12-hour fasting) at 8:00 am in the luteal phase (the twenty-fourth day of menstrual cycle) for determination of sex hormone (follicle stimulating hormone, FSH; luteinizing hormone, LH; estradiol, E2; progestogen, P and testosterone, T), blood lipids (total cholesterol, TC; triglycerides, TG; high-density lipoprotein, HDL and TC/HDL) and bone turnover marker (deoxypyridinoline, DPD). The results were (1) aerobic exercise and physical education has no significant effects on FSH, LH, E2, P (p＞0.05), but will significantly reduce the amount of T in blood (p＜0.05). (2) aerobic exercise and physical education can prevent bone loss (p＜0.05 and p＜0.01 respectively). (3) physical education has on significant effects on blood lipids (p＞0.05); aerobic exercise has no significant effects on TC and TG, either (p＞0.05), but has significant positive effects on HDL (↑, p＜0.01) and TC/HDL (↓, p＜0.05).

• 期刊

青少年運動減重對新陳代謝率的影響

This study was to investigate the effect of weight reduction on body composition and resting metabolic rate in femal adolescent. A 10-week weight reduction program was deviced. Twelve female students (aged 16-18 years) were divided volunteer into three groups including control group (CG), diet group (DG) and exercise and diet group (EDG). DG consumed 1200 kcal/day with no exercise. EDG consumed 1200 kcal daily and 30 mins/day aerobic exercise for 3-5 days per week, 10 weeks. The body composition and resting metabolic rate were measured before and after the program. The results are as follows:1. Body weight: The average weight reduction of DG and EDG were 2.9 kg and 5.3 kg (p＞.05). The changes were significant for both two groups. After investigating the water in the bodies of two groups, there was no obvious difference. It means that the reduction of body weight were not from the change of body water.2. Body fat: Average body fat of the DG decreased 1.06 kg (p＞.05), and it did not reach the significant difference, however, EDG lost 4.58 kg (p＜.05), which fit the obvious standard. The ratial of two groups' body fat reduced 1.06% and 4.1 %, and both of them qualified. It demonstrated that the all achieved the goal.3. Resting metabolic rate: Although the resting metabolic rate for DG and EDG decreased 46 and 23 kcal, there did not significant change. Further exercise really slowed down the falling range of fat-free mass and resting metabolic rate.It is concluded that 10 weeks of diet control and exercise decreased the effect of resting metabolic rate. It is necessary to continue exercising when people on diet successfully achieve the goal. To sum up, successful weight reduction requires to change the mode of behavior to assure their achievement.

• 期刊

一氧化氮對肌腱損傷復健的影響

Fast recovery is very important for athlete with sports injury. However, traditional method of rehabilitation usually takes a long time. The purpose of this study was to shorten the treatment process. Twenty-four rats were randomly assigned into 4 groups: control with exercise, control without exercise, SNP (sodium niroprusside, a NO donor) treatment with exercise, SNP treatment without exercise. At the beginning, rat's Achilles tendon was cut off completely followed by exercise rehabilitation or NO donor treatment after the 3rd day of surgery. The following 19 days, the rehabilitation modality was swimming for 15 minutes per day and Achilles Function Index (AFI) was used to assess the recovery of Achilles tendon function. The difference between groups was analyzed by independent two-way ANOVA (SAS 8.0) and significant difference was set atα=.05. The data of AFI were shown as followed (mean ± SD): SNP treatment with exercise group (-0.6 ± 3.2), SNP treatment without exercise group (-6.3 ± 2.7), control with exercise group (-13.7 ± 4.2), control without exercise group (-26 ± 3.2). The results indicated that the AFI of SNP treatment with exercise group was significantly higher than that of control without exercise group and that of SNP treatment without exercise group. Conclusion: SNP treatment combined with swimming can promote the recovery of tendon injury.