No description available.

Bakalauro darbą sudaro teorinis aprašas ir kūrybinė dalis: du aksesuarų komplektai vyriškam ir moteriškam dviračiams, projektinė dalis bei verslo planas.
Teoriniame darbe pateikama susisteminta medžiaga nuo pirmojo dviračio eskizo, vystymosi raidos, aksesuarų klasifikacijos iki šiuolaikinių dizainerių darbų. Miesto dviračių odinių aksesuarų kolekcija „Eime pasivažinėti“ simbolizuoja patogią kelionę šia transporto priemone ir ragina mus visus naudotis dviračiais. Aksesuarai skirti jaunam, veržliam šių dienų žmogui, kuris nori kuo labiau palengvinti savo keliones į darbą ar susitikimus su draugais. Krepšiai yra lengvai nusegami nuo dviračio ir papildomų rankenėlių pagalba gali būti nešiojami kaip kasdieninės rankinės. Į odinius krepšius telpa nešiojamasis kompiuteris, dokumentai, o į smulkesniuosius – mobilūs, piniginės ir kt. / Bachelor thesis is divided into 2 parts: theoretical and practical. The latter consists of 2 accessories sets for male and female bicycles, project part and a business plan. Systematized material from first bicycle sketch, later progress, accessories classification to nowadays-designers works is given in the theoretical part. Leather accessories collection for city bicycles “Let’s go for a ride” symbolizes a comfortable trip and encourages all of us to use this mean of transportation. The accessories are for impetuous nowadays people who want to make their trip to work or gatherings with friends easier. Bags are easily detachable and with the help of extra straps can be worn as ordinary bags. Bigger bags will fit a laptop, files in whereas smaller ones are suitable for mobiles phones or wallets.

The bicycle is used as a means of transport, for recreation, or sporting activities and has undoubted fitness benefits. However, rider discomforts caused by seat contact, as well as various pathologies effect participation and enjoyment of this activity. The potential causes of these pathologies are discussed, along with the methods used, to establish the link between cycling and the various pathologies. Of particular interest in this thesis, is the measurement of the comfort and pressure of different seat designs. The level of comfort felt may be a precursor to pathological damage and be of prognostic value when assessing and designing seats. Pressure seems to be one of the best and most direct methods to assess the cyclist-seat interaction and offer information as to possible pathologies. The purpose of this thesis was to examine the effects that a standard, partial cut-out and complete cut-out seat have on comfort and stability, in male, female, novice and experienced cyclists, and seat and handlebar pressure in male and female cyclists on a non-stationary bicycle.With regards to the results, the standard seats' mean and peak anterior seat pressures were significantly higher than the partial and complete cut-out seats (partial mean 19.1% and peak 16.8%; complete mean 66.1% and peak 72.6%). Mean and peak posterior pressure of the standard seat was significantly less than the cut-out seats (partial mean 16.5% and peak 12.3%; complete mean 21.6% and peak 21.2%). Overall peak pressure was significantly greater (22.8%) on the standard seat compared to the complete cut-out seat, but not significant (7.2%) compared to the partial cut-out seat design. Significantly lower mean handlebar pressure was associated with the standard (11.2%) and partial cut-out (14.7%) seat designs. There was no significant difference between seats for peak handlebar and mean overall pressure. The standard and partial cut-out seats had the highest sit bone, overall seat, overall riding, hand comfort and stability. The complete cut-out seat provided the greatest crotch comfort, but the lowest comfort and stability for all other factors investigated.It would seem that in terms of pressure distribution the partial cut-out seat would be the best option for cyclists, regardless of gender. In terms of comfort it is recommended that experienced and novice male cyclists should use the standard seat, experienced female cyclists use the partial cut-out seat and novice female cyclists could use either the standard or partial cut-out seat. However, pressure may be of more importance than comfort as it is more likely to influence pathological damage; therefore overall it is recommended that cyclists use the partial cut-out seat. The major draw back of the complete cut-out seat was the decreased perception of stability. With continued use of the complete cut-out seat this may become a better and more user-friendly option with a possible increase in perceived stability. Future research is required to examine any long-term effects in using cut-out seats in pathology prevention.

Thesis (M.S.)--Brigham Young University. Dept. of Mechanical Engineering, 2003. / Includes bibliographical references (p. 53-56).

No description available.

The purpose of this study was to quantify the EMG activity of selected lower limb muscles during cycling, and to define the relationship between pedal shaft width and muscular involvement. This study has particular significance to the female cyclist who by virtue of pelvic width may have a less efficient pedalling force, or an imbalance of applied muscular force. Variables analyzed were hip, knee, ankle range of motion (ROM), biceps femoris(BF), vastus lateralis(VL), rectus femoris(RF), and vastus medialis(VMO) muscle activity. Significant differences among three different pedal shaft widths were determined through use of repeated measures oneway ANOVA, Newman-Keuls post hoc test. The hip ROM, biceps femoris, and vastus medialis EKG activity results of the present study appeared to indicate that different pedal shaft widths had an effect on changes in the ROM and EMG activity. This study indicated that the hip ROM values increased with an increase in the pedal shaft width. In contary, an increase in pedal shaft width significantly decreased the muscle activity in the vastus medialis while two inch pedal shaft width significantly decreased the muscle activity in the biceps femoris. / School of Physical Education

Thesis (M.S.)--California Polytechnic State University, 2009. / Title from PDF title page; viewed on August 21, 2009. "July 2009." "In partial fulfillment of the requirements for the degree [of] Master of Science in Engineering." "Presented to the faculty of California Polytechnic State University, San Luis Obispo." Major professor: Linda Vanasupa, Ph.D. Includes bibliographical references (p. 100-101).

Thesis (M.S.)--Brigham Young University. Dept. of , Mechanical Engineering, 2007. / Includes bibliographical references (p. 125-128).

Learner mobility and active school travel (AST) has been proposed to improve school attendance and academic performance. In South Africa, approximately 86% of learners have been reported as walking to and from school. AST in Africa is becoming less common in urban areas, and this may be a contributing factor to the increased risk and frequency of noncommunicable diseases due to decreased physical activity. The aim of this wait-list controlled evaluation was to assess the physiological and cognitive changes of access to a bicycle versus walking on adolescents. Specifically, changes adolescent's physical activity levels and executive function in a South African low-income community. Two schools were recruited, with the evaluation school receiving bicycles and the control a school who were yet to receive bicycles. Significant differences were observed across the physiological and executive function assessments. Most notably in the executive function tests, the evaluation group showed significant time to completion decreases across all three tests (N-Back, Arrow Flanker, WCST: p< 0.001). The results from this study are significant, as they are the first to assess anthropometric, physiological and executive function in South African adolescents from low-socioeconomic regions. It is evident that there are potential improvements in working memory, inhibition and shifting due to cycling as a mode of AST or during leisuretime. Further research needs to determine the specific mechanisms associated with these improvements.

Cost benefit analysis is the conventional method of evaluating automobile transportation improvements. This study examined traditional automobile evaluation methods and applied the same techniques to bicycle transportation projects. Cost data from recent research is summarized and eleven costs (five internal and six external) were estimated. The cost estimates are used to calculate automobile and bicycle costs per mile of travel. A case study of a hypothetical corridor is used to demonstrate how the transportation costs can be applied to specific planning problems. The case study explores what effect shifts in modal distribution would have on the cost effectiveness of automobile and bicycle alternatives. The findings of the study begin to question the underlying premises of traditional cost benefit analysis in transportation projects. The study suggests that conventional analysis is fundamentally flawed and biased toward automobile transportation. / Department of Urban Planning