Vertical and Leg Stiffness Modeling During Running: Effect of Speed and Incline

被引:4
作者
Meyer, Frederic [1 ,2 ]
Falbriard, Mathieu [3 ]
Aminian, Kamiar [3 ]
Millet, Gregoire P. [1 ]
机构
[1] Univ Lausanne, Inst Sport Sci, Batiment Synathlon,B-3308, CH-1015 Lausanne, Switzerland
[2] Univ Oslo, Dept informat, Fac Math & Nat Sci, Oslo, Norway
[3] Ecole Polytech Fed Lausanne, Lab Movement Anal & Measurement LMAM, Lausanne, Switzerland
关键词
spring mass model; energy; kinetics; sport; biomechanics; physical performance; STRIDE FREQUENCY; MECHANICAL WORK; DETERMINANTS; PARAMETERS; UPHILL; LEVEL; SLOPE;
D O I
10.1055/a-2044-4805
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
A spring mass model is often used to describe human running, allowing to understand the concept of elastic energy storage and restitution. The stiffness of the spring is a key parameter and different methods have been developed to estimate both the vertical and the leg stiffness components. Nevertheless, the validity and the range of application of these models are still debated. The aim of the present study was to compare three methods (i. e., Temporal, Kinetic and Kinematic-Kinetic) of stiffness determination. Twenty-nine healthy participants equipped with reflective markers performed 5-min running bouts at four running speeds and eight inclines on an instrumented treadmill surrounded by a tri-dimensional motion camera system. The three methods provided valid results among the different speeds, but the reference method (i. e., Kinematic-Kinetic) provided higher vertical stiffness and lower leg stiffness than the two other methods (both p<0.001). On inclined terrain, the method using temporal parameters provided non valid outcomes and should not be used. Finally, this study highlights that both the assumption of symmetry between compression and decompression phases or the estimation of the vertical displacement and changes in leg length are the major sources of errors when comparing different speeds or different slopes.
引用
收藏
页码:673 / 679
页数:7
相关论文
共 32 条
[1]  
ALEXANDER RM, 1975, J ZOOL, V177, P265, DOI 10.1111/j.1469-7998.1975.tb05983.x
[2]   The effect of speed on leg stiffness and joint kinetics in human running [J].
Arampatzis, A ;
Brüggemann, GP ;
Metzler, V .
JOURNAL OF BIOMECHANICS, 1999, 32 (12) :1349-1353
[3]   THE SPRING MASS MODEL FOR RUNNING AND HOPPING [J].
BLICKHAN, R .
JOURNAL OF BIOMECHANICS, 1989, 22 (11-12) :1217-1227
[4]   Effective leg stiffness in running [J].
Blum, Yvonne ;
Lipfert, Susanne W. ;
Seyfarth, Andre .
JOURNAL OF BIOMECHANICS, 2009, 42 (14) :2400-2405
[5]   A review of research on the mechanical stiffness in running and jumping: methodology and implications [J].
Brughelli, M. ;
Cronin, J. .
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS, 2008, 18 (04) :417-426
[6]   FORCE PLATFORMS AS ERGOMETERS [J].
CAVAGNA, GA .
JOURNAL OF APPLIED PHYSIOLOGY, 1975, 39 (01) :174-179
[7]   SOURCES OF EXTERNAL WORK IN LEVEL WALKING AND RUNNING [J].
CAVAGNA, GA ;
THYS, H ;
ZAMBONI, A .
JOURNAL OF PHYSIOLOGY-LONDON, 1976, 262 (03) :639-657
[8]  
CAVAGNA GA, 1988, J PHYSIOL-LONDON, V399, P81
[9]   MECHANICAL WORK IN RUNNING [J].
CAVAGNA, GA ;
SAIBENE, FP ;
MARGARIA, R .
JOURNAL OF APPLIED PHYSIOLOGY, 1964, 19 (02) :249-&
[10]   Are running speeds maximized with simple-spring stance mechanics? [J].
Clark, Kenneth P. ;
Weyand, Peter G. .
JOURNAL OF APPLIED PHYSIOLOGY, 2014, 117 (06) :604-615