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800m+ Running and/or Conditioning / Watches for Running
« on: December 23, 2015, 12:00:13 am »
garmin etc.
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http://www.youtube.com/watch?v=ePwvZoXZu20
the dunk is tight, but click through to see trevor booker's reaction in the vine here: http://deadspin.com/the-incredible-dunk-is-only-the-first-half-of-this-high-1749266633.
lolololol
The use of inter-repetition rest within a set (IRR) has been reported to
attenuate the decline in power performance when compared with continuous
repetition set configurations. However, the effect of IRR duration between
single squat jump repetitions is unknown. This knowledge might be
advantageous to optimize power development. Twenty male subjects
completed four squat jumps at 20% of a 1 RM back squat under four different
protocol conditions: TR0 = no IRR between repetitions (reps), P15 = 15
seconds(s) between reps, P30 = 30 s between reps and P45 = 45 s between
reps. Peak force (PF), peak velocity (PV), and peak power (PP) were
measured for each trial. Significant increases (P < 0.05) in PP and PV were
noted during P30 from Rep (R)1 to R3 and R4, and P45 R2 to R4. Comparison
of likewise repetitions across conditions show that subjects were able to
produce superior PP and PV efforts during R4 across all IRR conditions
compared to with TR (Figures 6-8). This was statistically significant during P45
for PV and PP (R4 PP P = 0.004, R4 PV P = 0.002). Mean NET values for the
four conditions show a linear increase in PP, PF, and PV with an increase in
IRR (although non-significant). In agreement with Hansen et al. (19) and
Hardee et al. (20-22), the results demonstrate a positive influence of IRR to
enhance power output. Strength and Conditioning Coaches could use IRR to
accelerate the learning process and increase power during training. Of the
four conditions explored, an IRR of 45 s appears optimal to maximize power
output during a squat jump.
Abstract
[Purpose] The purpose of this study was to investigate the effects of bodyweight-based exercise with blood flow restriction on isokinetic muscular function and thigh circumference in college students. [Subjects and Methods] The subjects were 17 college students who were recruited and randomly assigned to bodyweight-based exercise with blood flow restriction and bodyweight-based exercise groups. Participants performed front lunges and squats at ratings of perceived exertion of 11–13 three times a week during a 6-week training period. The peak torque/ body weight (%) of the knee flexor and extensor was measured using a HUMAC NORM System (Cybex 770-NORM®, Cybex International, Medway, MA, USA), and the circumference of the thigh was measured. PASW Statistics was used for data analysis. [Results] There were significant differences in the peak torque/ body weight (%) of the flexors in both thighs (at 180°/sec) after bodyweight-based exercise with blood flow restriction. In addition, the circumference changes in both thighs were significant after bodyweight-based exercise with blood flow restriction and between the two groups. [Conclusion] This study suggests that bodyweight-based exercise with blood flow restriction may be an effective method to improve the muscle power and hypertrophy of the lower extremity in a clinical setting.