Theoretically,post-activation performance enhancement(PAPE)promotes force production and power following heavy resistance training exercises.Resistance training exercises seek to elicit increased force production by p...Theoretically,post-activation performance enhancement(PAPE)promotes force production and power following heavy resistance training exercises.Resistance training exercises seek to elicit increased force production by preconditioning the muscles during subsequent exercises,such as jumping,throwing,sprinting,and weightlifting.This study aimed to investigate the PAPE effect between barbell back squats(BS)and hexagonal bar deadlifts(HBD)on countermovement jump(CMJ)performance among collegiate basketball players.Eighteen male(with a relative BS one repetition maximum(1RM)of 1.62±0.24 and a relative HBM 1RM of 1.86±0.25)participants were included,who completed a set of 3RM of both exercises in a randomized counterbalanced order before performing a series of CMJs on a force platform at 15 s,4 min,8 min,12 min,16 min and 20 min post-exercise.A two-way ANOVA with a 7×2 design(time×conditioning activity)was conducted to assess variations between both conditioning activities(CAs)for each dependent variable.No significant differences(all P>0.05)were found between the baseline and the six different jumps,regarding jump height(η^(2)_(p)=0.035),reactive strength index-modified(η^(2)_(p)=0.026),and peak power output(η^(2)_(p)=0.036)across both exercises.However,there was a moderate positive correlation(P=0.008,r=0.604)between relative BS strength and average CMJ height,P but no significant correlation(P>0.05)was found between relative HBD strength and average CMJ height.Despite previous studies reporting the occurrence of PAPE using a similar 3RM load,this study concludes that careful manipulation of PAPE variables(i.e.,training status,intensity,volume,exercise selection,rest intervals,and time of day)is necessary to potentially elicit PAPE to enhance subsequent CMJ performance.展开更多
Purpose This study examined the effects of tournament load on neuromuscular function,perceived wellness and coach rat-ings of performance across two 6-day netball tournaments.Methods Thirty-nine female youth netballer...Purpose This study examined the effects of tournament load on neuromuscular function,perceived wellness and coach rat-ings of performance across two 6-day netball tournaments.Methods Thirty-nine female youth netballers(age=14.6±0.5 years,stature=165.9±4.7 cm,body mass=56.5±7.2 kg)were categorised as HIGH(10-11 matches,n=20)or LOW(6 matches,n=19)tournament load.Match load,jump height,perceived wellness and coach ratings of performance were monitored daily.Results HIGH tournament load resulted in greater reductions in jump height on match-day 4(-8.3%,±5.6%)when compared to LOW.HIGH tournament load resulted in greater reductions in perceived soreness(-0.9,±1.1 AU)and overall wellness(-2.6,±2.3 AU)on match-day 3,and a greater reduction in perceived sleep(-0.9,±1.1 AU)on match-day 4.HIGH tournament load was negatively associated with sleep quality and coach ratings of performance(effect size correlation=-0.34 to-0.47)when compared to LOW.Conclusion Our results indicate that a higher tournament load resulted in greater increases in neuromuscular fatigue,reduced perceived wellness,and lower ratings of performance.Practitioners should consider pre-tournament preparation and monitoring strategies to minimise the physiological disturbances during an intensified tournament.展开更多
文摘Theoretically,post-activation performance enhancement(PAPE)promotes force production and power following heavy resistance training exercises.Resistance training exercises seek to elicit increased force production by preconditioning the muscles during subsequent exercises,such as jumping,throwing,sprinting,and weightlifting.This study aimed to investigate the PAPE effect between barbell back squats(BS)and hexagonal bar deadlifts(HBD)on countermovement jump(CMJ)performance among collegiate basketball players.Eighteen male(with a relative BS one repetition maximum(1RM)of 1.62±0.24 and a relative HBM 1RM of 1.86±0.25)participants were included,who completed a set of 3RM of both exercises in a randomized counterbalanced order before performing a series of CMJs on a force platform at 15 s,4 min,8 min,12 min,16 min and 20 min post-exercise.A two-way ANOVA with a 7×2 design(time×conditioning activity)was conducted to assess variations between both conditioning activities(CAs)for each dependent variable.No significant differences(all P>0.05)were found between the baseline and the six different jumps,regarding jump height(η^(2)_(p)=0.035),reactive strength index-modified(η^(2)_(p)=0.026),and peak power output(η^(2)_(p)=0.036)across both exercises.However,there was a moderate positive correlation(P=0.008,r=0.604)between relative BS strength and average CMJ height,P but no significant correlation(P>0.05)was found between relative HBD strength and average CMJ height.Despite previous studies reporting the occurrence of PAPE using a similar 3RM load,this study concludes that careful manipulation of PAPE variables(i.e.,training status,intensity,volume,exercise selection,rest intervals,and time of day)is necessary to potentially elicit PAPE to enhance subsequent CMJ performance.
文摘Purpose This study examined the effects of tournament load on neuromuscular function,perceived wellness and coach rat-ings of performance across two 6-day netball tournaments.Methods Thirty-nine female youth netballers(age=14.6±0.5 years,stature=165.9±4.7 cm,body mass=56.5±7.2 kg)were categorised as HIGH(10-11 matches,n=20)or LOW(6 matches,n=19)tournament load.Match load,jump height,perceived wellness and coach ratings of performance were monitored daily.Results HIGH tournament load resulted in greater reductions in jump height on match-day 4(-8.3%,±5.6%)when compared to LOW.HIGH tournament load resulted in greater reductions in perceived soreness(-0.9,±1.1 AU)and overall wellness(-2.6,±2.3 AU)on match-day 3,and a greater reduction in perceived sleep(-0.9,±1.1 AU)on match-day 4.HIGH tournament load was negatively associated with sleep quality and coach ratings of performance(effect size correlation=-0.34 to-0.47)when compared to LOW.Conclusion Our results indicate that a higher tournament load resulted in greater increases in neuromuscular fatigue,reduced perceived wellness,and lower ratings of performance.Practitioners should consider pre-tournament preparation and monitoring strategies to minimise the physiological disturbances during an intensified tournament.
