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Showing 1 to 12 of 12 for “"Stretch Shortening Cycle"”.
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Determining muscle-tendon characteristics and function of stretch-shortening cycle performance in dancers
… by muscle-tendon unit (MTU) properties and stretch-shortening cycle (SSC) proficiency. Early on in athletic development, dancers are instructed to maintain aesthetic posture, wherein the hips are directly beneath the shoulders, during most jumps and leaps. Different from a countermovement …
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Evaluating Stretch-Shortening Cycle Function in Athletes After ACL Reconstruction Using a Repeat Hop Test
The purpose of this thesis was to evaluate the influence of external task constraints on repeat hop testing (RHT) performance, neuromuscular control, and interlimb force-time asymmetry in athletes following anterior cruciate ligament reconstruction (ACLR). The first study compared three methods for …
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Stretch-Shortening Cycle in Human Muscle Contraction: The Role of the Stretch Reflex in Force Production in Various Vertical Jumps
Although researchers agree that both the stretch reflex and the elasticity of the muscle contribute to the effectiveness and efficiency of human performances, the relative contributions of each have not been determined, because no direct measurements have been utilized. Therefore, the purpose of …
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Impact of Sex and Stretch-Shortening Cycle Induced-Fatigue on Limb Stiffness and Limb Stiffness Asymmetry During the Stop-Jump
… the effect of sex and fatigue induced by the stretch-shortening cycle on lower limb mechanics and asymmetry values in the stop-jump task. The first purpose of the study was to assess the effect of sex and stretch-shortening cycle fatigue on limb stiffness and limb stiffness asymmetry. The …
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Musculotendinous stiffness and muscle function
… the elastic properties of muscle and tendon to stretch shortening cycle performance. The results are variable, perhaps as a result of the different techniques utilised. Although several studies have suggested an association between a more compliant muscle-tendon complex, and enhanced stretch …
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The effect of acute fatigue on reactive strength index in modern dancers
… was to evaluate the effects of acute fatigue on stretch shortening cycle (SSC) performance measured by the Reactive Strength Index (RSI) derived from a drop jump. Methods: Twelve professional modern dancers (8 female, 4 male) participated in this study. Two force plates were utilized to record …
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A biomechanical analysis of weightlifting pulling derivatives and their application to performance programming
… highlighting the benefits of utilising the stretch shortening cycle. During the CMS (Study 3) and HP (Study 4) statistical parametric mapping was used to establish where differences exist across the entire movement, in addition to peak and mean values. Results indicated greater negative …
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NEUROMUSCULAR PERFORMANCE ASSESSMENTS AND MONITORING IN COLLEGIATE NCAA DIVISION I BASKETBALL ATHLETES: AN ADOPTION OF THE APPLIED RESEARCH MODEL FOR THE SPORT SCIENCES
… of vertical jump tasks reflective of stretch-shortening cycle (SSC) efficiency and are frequently implemented to assess neuromuscular status in athlete populations. However, evidence is limited as to which assessments and derived force-time variables may be most sensitive or responsive …
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Cross-education and neuromuscular factors relating to the prevention and rehabilitation of anterior cruciate ligament (ACL) knee injuries
… primarily related to the utilisation of the stretch shortening cycle for DJs given the counter movement nature of the first landing and take off. Other differences include the key muscle groups and joint movements for force generation, which are specific to each jump type. Clinical relevance: …
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Impact of Surface Stiffness on Lower Limb Stiffness and Symmetry During Gait
… and reuse energy. This is associated with the stretch shortening cycle during cyclic movements, such as running and walking. Limb stiffness is also associated with musculoskeletal loading that impacts performance and injury. Therefore, optimizing limb stiffness is important to improve …
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Assessment and enhancement of lower extremity power of athletes
STUDY 1: RELIABILITY OF PERFORMANCE MEASUREMENTS DERIVED FROM GROUND REACTION FORCE DATA DURING COUNTERMOVEMENT JUMP AND INFLUENCE OF SAMPLING FREQUENCY. STUDY 2: COMPARISON OF FOUR DIFFERENT METHODS TO MEASURE POWER OUTPUT DURING THE HANG POWER CLEAN AND THE WEIGHTED JUMP SQUAT. STUDY 3: DOES …
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The countermovement rebound jump assessment: validity, reliability, associations with athletic performance and sensitivity to change
… However, evaluating both slow and fast stretch-shortening cycle (SSC) capabilities through separate CMJ and DJ tests can be time-consuming if undertaking multiple trials for each test, and logistically challenging. To address this, the countermovement rebound jump (CMRJ), which combines …