Search results for "postactivation potentiation"
showing 3 items of 3 documents
Neural contribution to postactivation potentiation
2015
The current study was designed to investigate the contribution of neural factors to postactivation potentiation (PAP). Neuromuscular function (i.e. twitches, H-reflexes, motor evoked potentials, and voluntary isometric ballistic contractions) of 8 power-trained (POW) and 8 endurance-trained (END) athletes was recorded before and after a 8-second maximal isometric conditioning contraction (CC) to induce PAP, to elucidate discriminating neural factors in exploiting PAP that might arise from the former training background compared to the latter. After CC, twitch peak force and rate of force development were significantly increased, with higher potentiation in POW (29 ± 11% and 64 ± 24%) than E…
Acute effects of fatigue to strength and power variables in edurance trained athletes
2015
The purpose of this bachelor thesis was to investigate how fatigue affects strength and power in endurance trained athletes. This thesis is written for the athletes, coaches and researchers in the field of sport. Total of 7 endurance athletes (age 23.3 years ± 1.3, height 174.7 cm ± 6.4, weight 66.5 kg ± 8.4) volunteered for the study, 4 male and 3 female. Hypotheses were that measured variables do not decrease after fatiguing protocol and that the potentiation may counteract fatigue. Fatigue was induced in a continuous maximal treadmill running, where speed was increased every five minutes by one km/h. When necessary, after 45 minutes of running, speed was increased every minute by one km/…
The acute effects of different high-intensity conditioning activities on sprint performance differ between sprinters of different strength and power …
2021
The purpose of the present study was to examine the effect of different conditioning activities (CAs) on short-term increase in sprint performance. In twelve male sprinters (21.1+2.6 years, 100 m performance: 11.5+0.6 s) their body composition, half squat maximum strength, 100 m sprinting and countermovement jump performances were evaluated. The performance of a 50 m sprint (splits at 10 m, 30 m and 50 m) was evaluated before and 5, 10 and 15 min after four postactivation performance enhancement CAs on different occasions: [1] 3 sets x 4 s maximum isometric half squat (IHF), [2] 3 sets x 3 consecutive countermovement jumps (cCMJs), [3] 3 repetitions x 30 m overspeed sprinting (OVSP) and [4]…