지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Objective: The purpose of this study was to compare the physical characteristics (bone mineral density, joint muscle strength) and running biomechanics between older adults and young adult runners to understand the changes of running strategy by aging. Method: Bone mineral density (Dual Energy X-ray Absorptiometry, USA) of lower lower extremity and muscle strength (Cybex Humac Norm [DEXA], CSMI, USA) were measured to identify the physical characteristics of 10 elderly (age: $67.70{\pm}3.30yrs$, height: $1.68{\pm}0.04m$, mass: $67.70{\pm}3.80kg$) and 10 young adults (age: $21.20{\pm}0.42yrs$, height: $1.73{\pm}0.06m$, mass: $72.11{\pm}4.15kg$). Running data was collected by using an instrumented treadmill (Bertec, USA) and 7 infrared cameras (Oqus 300, Qualisys, Sweden). Two-way repeated ANOVA analysis was used to analyze results at a significant level of .05 with Bonferroni post hoc analysis. Results: Compared to the young adult group, the elderly group showed statistically significant difference in physical characteristics and in running characteristics. Elderly runners showed lower BMD and muscle strength compared with young runners (p<.05). In the running parameters, elderly runners tend to show shorter contact time and stride length compared with young runners (p<.05). In the joint angles, elderly runners showed smaller range of ankle motion compared with young runners (p<.05). Finally, elderly runners showed lower level of joint moment, joint power, and GRF compared with young runners in each running speed (p<.05). Conclusion: The running behavior of the elderly performed periodic running was similar to many variables of young adults. However, there were noticeable differences found in the ankle joints and most kinetic variables compared with young adult runners. This discrepancy may propose that elderly runners should consider appropriate running distance and intensity in the program.
목차
등록된 정보가 없습니다.
참고문헌 (48)
참고문헌 신청
Abe, T. / 2000 / Time course for strength and muscle thickness change following upper and lower body resistance training in men and women / European Journal of Applied Physiology 81(3):174~180
Anbarian, M. / 2016 / Effects of running-induced fatigue on plantar pressure distribution in novice runners with different foot types / Gait & Posture 48:52~56
Barrett, R. / 2008 / Gender differences in the variability of lower extremity kinematics during treadmill locomotion / Journal of Motor Behavior 40(1):62~70
Bohannon, R. W. / 1995 / Sit to stand test for measuring performance of lower extremity muscles / Perceptual and Motor Skills 80:163~166
Bolam, K. A. / 2013 / The effect of physical exercise on bone density in middle-aged and older men : a systematic review / Osteoporosis International 24(11):2749~2762
Anbarian, M. / 2016 / Effects of running-induced fatigue on plantar pressure distribution in novice runners with different foot types / Gait & Posture 48:52~56
Barrett, R. / 2008 / Gender differences in the variability of lower extremity kinematics during treadmill locomotion / Journal of Motor Behavior 40(1):62~70
Bohannon, R. W. / 1995 / Sit to stand test for measuring performance of lower extremity muscles / Perceptual and Motor Skills 80:163~166
Bolam, K. A. / 2013 / The effect of physical exercise on bone density in middle-aged and older men : a systematic review / Osteoporosis International 24(11):2749~2762
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