Relationships Between Sprint Acceleration And Broad Jump Kinetics In NFL Draft Prospects
Abstract (300 words maximum)
To determine the relationships between during 40-m sprinting acceleration and a standing broad jump (SBJ) kinetics, twenty-seven NFL prospects (22.7±0.9years; 109.1±23.4kg; 185.8±7.9cm) completed pre-training assessments at the beginning of their off-season. Following a standardized warm-up, the athletes were tethered to a robotic sprinting device (RSD) at minimal resistance (1-kg) and completed a maximal 40-m sprint trial. Sprinting time, distance, as well as peak (PK) and average (AVG) velocity (V), force (F), power (P), and peak rate of force development (RFD) during the first five strides of the 40-m sprint (SPR5) were recorded by the RSD’s software for analysis. Following the sprinting assessment, the athletes completed a maximal SBJ trial while tethered to the RSD at 1-kg of resistance. The RSD’s software recorded VPK, VAVG, FPK, FAVG, PPK, PAVG, and RFD during the SBJ. Pearson correlation analysis revealed positive relationships (p<0.05) between SBJ distance and SPR5_VPK (r = 0.47), SPR5_FAVG (r = 0.45), and SPR5_PAVG (r = 0.55). Negative relationships (p<0.05) were observed between SPR5 time and SBJ_VPK (r = –0.72) and SBJ_PPK (r = –0.58). Additionally, negative relationships (p<0.05) were found between SBJ_RFD and SPR5 distance (r = –0.39), SPR5_FPK (r = –0.40), and SPR5_RFD (r = –0.44). Greater sprinting velocity, force, and power during acceleration are positively associated with broad jump distance, while broad jump velocity and power are positively related to faster sprint acceleration. Interestingly, broad jump RFD was inversely related to the distance travelled, as well as force and RFD produced during sprint acceleration.
Academic department under which the project should be listed
WCHHS - Exercise Science and Sport Management
Primary Investigator (PI) Name
Gerald Mangine
Relationships Between Sprint Acceleration And Broad Jump Kinetics In NFL Draft Prospects
To determine the relationships between during 40-m sprinting acceleration and a standing broad jump (SBJ) kinetics, twenty-seven NFL prospects (22.7±0.9years; 109.1±23.4kg; 185.8±7.9cm) completed pre-training assessments at the beginning of their off-season. Following a standardized warm-up, the athletes were tethered to a robotic sprinting device (RSD) at minimal resistance (1-kg) and completed a maximal 40-m sprint trial. Sprinting time, distance, as well as peak (PK) and average (AVG) velocity (V), force (F), power (P), and peak rate of force development (RFD) during the first five strides of the 40-m sprint (SPR5) were recorded by the RSD’s software for analysis. Following the sprinting assessment, the athletes completed a maximal SBJ trial while tethered to the RSD at 1-kg of resistance. The RSD’s software recorded VPK, VAVG, FPK, FAVG, PPK, PAVG, and RFD during the SBJ. Pearson correlation analysis revealed positive relationships (p<0.05) between SBJ distance and SPR5_VPK (r = 0.47), SPR5_FAVG (r = 0.45), and SPR5_PAVG (r = 0.55). Negative relationships (p<0.05) were observed between SPR5 time and SBJ_VPK (r = –0.72) and SBJ_PPK (r = –0.58). Additionally, negative relationships (p<0.05) were found between SBJ_RFD and SPR5 distance (r = –0.39), SPR5_FPK (r = –0.40), and SPR5_RFD (r = –0.44). Greater sprinting velocity, force, and power during acceleration are positively associated with broad jump distance, while broad jump velocity and power are positively related to faster sprint acceleration. Interestingly, broad jump RFD was inversely related to the distance travelled, as well as force and RFD produced during sprint acceleration.