Lower-limb joint kinetics in jump rope skills performed by competitive athletes

Abstract

The purpose of this study was to characterise lower-limb joint kinetics during consecutive double unders and speed step sprints performed by competitive jump rope athletes, and to compare these measurements to running. Sixteen adolescent competitive jump rope athletes performed consecutive double under, speed step, and running trials while motion capture and ground reaction force data were collected. Lower limb joint moments, power, and work were calculated using an inverse dynamics approach and discrete measurements were compared between skills. Peak ground reaction forces were similar between movements; however, knee and hip joint kinetics were distributed differently between double unders and speed step. In general, double unders were characterised by an increased reliance on knee joint kinetics, while speed step was characterised by an increased reliance on hip joint kinetics. Peak ankle moments were 9-20% greater in speed step when compared to double unders and running (p ≤ 0.050), and peak negative ankle power was 39-114% greater in double unders and speed step when compared to running (p ≤ 0.002). These findings may have important implications for injury risk and load management in jump rope athletes or other individuals that incorporate jump rope into their training programs.

Plasma Metabolomics Reveals β-Glucan Improves Muscle Strength and Exercise Capacity in Athletes

“…The 1 min double shake jump was an index reflecting the special endurance quality of the table tennis players [ 29 ]. Before the test, each subject would adjust the size of the rope to the level of his chest [ 30 ]. When the test began in earnest, the researchers would record the number of times the subjects double shake as fast as they can in one minute.…”

The Effect of an 8-Week Rope Skipping Intervention on Standing Long Jump Performance

“…Rope skipping exercises the whole body that requires rhythm, coordination, agility, speed, force and balance [ 5 , 6 , 7 , 8 , 9 ]. It has been observed in previous studies of jumping ability that beginners receiving SSC rope skipping training recorded shortened contact time with the ground, increased jump height, and changes in the contribution of each muscle group or joint angle control of the lower legs [ 10 , 24 ].…”

“…Therefore, the standing long jump performance is very important, and it is also an important factor in measuring physical fitness. Besides, rope skipping exercises the whole body that can improve body mass index, cardiorespiratory endurance, motor coordination, agility, speed, force and balance ability, and plays a prominent role in the improvement of athletic ability [ 4 , 5 , 6 , 7 , 8 , 9 ]. The activity is extremely safe, requires little space, is inexpensive, and can be performed at home.…”

Effects of Barefoot and Shod Conditions on the Kinematics and Kinetics of the Lower Extremities in Alternating Jump Rope Skipping—A One-Dimensional Statistical Parameter Mapping Study

“…The GRF data were filtered at a cut-off frequency of 100 Hz [27,29]. The initial contact was defined as the time at which the GRF exceeded 50 N [3].…”

“…Jump rope is a popular high-intensity aerobic exercise among sports enthusiasts due to its convenient spatial requirements and ease of execution [1,2]. The activity has gained significant global recognition, with over 50 countries boasting professional jump rope clubs [3]. Jump rope is a highly favored physical activity among adolescents, as evidenced by the annual participation of approximately 1 million students from 4000 schools in Canada [4].…”