后跟中底硬度及穿著時間對籃球鞋緩沖性能的影響
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本文關鍵詞: 籃球鞋 中底硬度 穿著時間 緩沖性能 耐久性 出處:《北京體育大學》2015年碩士論文 論文類型:學位論文
【摘要】:研究目的:本研究采用機械測試、生物力學測試與主觀舒適度評價相結(jié)合的方法,通過測量不同穿著時間后不同后跟中底硬度籃球鞋機械緩沖性能及穿著測試鞋進行接球上籃、垂直著地動作時人體動力學、運動學及主觀舒適度指標,研究和探討穿著時間及后跟中底硬度對籃球鞋緩沖性能的影響。其結(jié)果可為籃球鞋的設計制造及消費者的選擇提供參考。研究方法:15名男性籃球?qū)m椷\動員(年齡:20.9±1.2歲,身高:178±3.0厘米,體重:73.4±7.6公斤),3雙不同后跟中底硬度(高硬度、中硬度、低硬度)籃球鞋。應用紅外高速運動捕捉測試系統(tǒng)(VICON-T020 Motion Systems,200Hz)及三維測力臺(AMTI-BP6009, 1000Hz)同步采集受試者在測試鞋穿著0、18、36、54及72小時后接球上籃及垂直著地時下肢動力學及運動學參數(shù),并通過視覺模擬量表(VAS 150mm)進行主觀舒適度評價,同時應用沖擊測試儀測量中底材料的緩沖性能。測試鞋的穿著過程由3名年齡、身高、體重、鞋碼及場上位置均相似的受試者完成,每雙測試鞋在每個測試階段均隨機分配給受試者。應用重復測量雙因素方差分析法確定鞋后跟中底硬度及穿著時間(3種硬度*5個時間點)對所有測試指標的影響。后繼檢驗采用LSD法,規(guī)定一類錯誤的概率小于0.05時數(shù)據(jù)有顯著性意義。研究結(jié)果:在機械測試及接球上籃測試中,后跟中底硬度及穿著時間對峰值沖擊力、能量回彈及垂直第一峰值力最大加載率存在交互影響。接球上籃測試中,后跟中底高硬度鞋垂直第一峰值力及第一峰值力平均加載率大于低硬度與中硬度鞋(p0.05),垂直第一峰值力隨穿著時間的增加不斷增大。垂直著地測試中,后跟中底高硬度鞋垂直第二峰值力、第二峰值力平均、最大加載率大于低硬度與中硬度鞋(p0.05)。穿著中硬度鞋踝關節(jié)外翻峰值角速度小于高硬度鞋(p0.05)。同樣,垂直第一、二峰值力,達到第一、二峰值力最大加載率均隨穿著時間的增加不斷增大。穿著36小時后,踝關節(jié)內(nèi)翻峰值力矩及外翻峰值角速度大于穿著0小時后(p0.05)。主觀舒適度測試中,垂直著地時低硬度鞋后掌緩沖及整體舒適度評價好于高硬度與中硬度鞋(p0.05)。穿著36小時后受試者主觀舒適度評價高于穿著0小時及穿著72小時后(p0.05)研究結(jié)論:1.低硬度與中硬度鞋緩沖性能好于高硬度鞋。2.穿著18小時后中底緩沖性能開始下降,并隨穿著時間的增加逐漸降低。3.低硬度鞋中底緩沖耐久性差于中硬度與高硬度鞋。4.后跟中底硬度與穿著時間對籃球鞋緩沖減震性能存在交互影響。5.中底緩沖性能的下降影響進行籃球基本動作時踝關節(jié)的穩(wěn)定性。6.評價后跟中底緩沖性能的機械測試、生物力學測試和主觀舒適度評價的結(jié)論不同。
[Abstract]:Objective: in this study, mechanical test, biomechanical test and subjective comfort evaluation were used to measure the mechanical buffering performance of basketball shoes with different heel hardness after different wear time and to catch the basket with test shoes. Indicators of human dynamics, kinematics and subjective comfort when perpendicular to the ground, The effects of wear time and heel hardness on the cushioning performance of basketball shoes were studied and discussed. The results can be used as a reference for the design and manufacture of basketball shoes and the choice of consumers. Height: 178 鹵3.0 cm, weight: 73.4 鹵7.6 kg / kg. 3 pairs of midsole hardness (high hardness, medium hardness, Basketball shoes with low hardness. Dynamic and kinematic parameters of lower extremities were simultaneously collected by using the infrared high-speed motion capture test system VICON-T020 Motion systems (200Hz) and the three dimensional force measuring platform AMTI-BP6009,1000Hz. the subjects were tested on the lower extremity dynamics and kinematics when they were wearing 0n181836n54 and 72 hours after catching the ball on the basket and landing perpendicular to the ground. The subjective comfort was evaluated by visual analogue scale (VAS 150mm) and the cushioning performance of the middle sole material was measured by impact tester. The wearing process of shoes was measured by 3 age, height and weight. Subjects with similar shoe sizes and positions on the field, Each pair of test shoes was randomly assigned to the subjects at each stage of the test. The effect of repeated measurements on all test indexes was determined by using the method of double factor variance analysis of repeated measurements to determine the hardness of the middle sole of the heel and the wear time of 3 hardness * 5 time points). The LSD method was used to follow the test. The data are significant when the probability of a class of errors is less than 0.05. Results: in the mechanical test and the layup test, the hardness of the heel and wear time on the peak impact force, The energy rebound and the maximum loading rate of the vertical first peak force are interactive. The average loading rate of the vertical first peak force and the first peak force of the heel high hardness shoe is higher than that of the low and medium hardness shoes p0.05, and the vertical first peak force increases with the increase of wearing time. The second vertical peak force, the second peak force, the average second peak force, and the maximum loading rate are greater than that of the low and medium hardness shoes p0.05.The peak-turning angular velocity of the ankle joint in the mid-hardness shoe is lower than that of the high-hardness shoe p0.05. similarly, the vertical first and second peak forces, The maximum loading rate of the first and second peak force increases with the increase of wearing time. After 36 hours of wear, the peak torque and angular velocity of valgus peak of ankle joint are higher than that of 0 hours after wearing. When perpendicular to the ground, the cushioning and overall comfort of low hardness shoes were better than those of high and medium hardness shoes p0.05. The subjective comfort evaluation of subjects after 36 hours of wear was higher than that of 0 hours and 72 hours after wearing. The cushioning performance of medium and medium hardness shoes is better than that of high hardness shoes. With the increase of wear time, the cushioning durability of the middle soles of low hardness shoes is worse than that of medium and high hardness shoes. 4. The hardness of heel and wear time have an interactive effect on the cushioning and damping performance of basketball shoes .5.The cushioning performance of middle soles is better than that of medium and high hardness shoes. The stability of the ankle joint during the basic basketball movement. 6. Mechanical test to evaluate the cushioning performance of the middle sole of the heel. The results of biomechanical test and subjective comfort evaluation are different.
【學位授予單位】:北京體育大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:G841;G804.6
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