Recent studies indicate that the utilization of the hexagonal barbell jump squat (HBJS) compared with the traditional barbell jump squat may offer a superior method of developing peak power. The notion that a single optimal load may be prescribed in training programs aiming to develop peak power is subject to debate. The purpose of this study was to identify the optimal load corresponding with ...

In humans, regimented resistance training has been shown to promote substantial increases in skeletal muscle mass. With respect to traditional resistance training methods, the prevailing opinion is that an intensity of greater than ~60 % of 1 repetition maximum (RM) is necessary to elicit significant increases in muscular size. It has been surmised that this is the minimum threshold required to...

to obtain detailed information of sowing density and defoliation intensity under more controlled conditions on herbage production and seed yield, paraggio medic was grown on raised-beds located outdoors at the waite agricultural research institute. a split split randomised block design was used. treatments comprised three sowing rates (densities): low (3 kg/ha), medium (15 kg/ha) and high (...

This study examined the levels of hip and knee torques produced during a one repetition maximum (1RM partial) squat and full squat in order to determine if there would be a difference in the peak torque created at the two depths. Eight male athletes (standing height = 1.84  0.07 m; mass = 87  14 kg; age 23 ± 2.1 years) volunteered for the study. Each subject performed a 1RM squat at full squa...

The influence of different relative intensities on power output was investigated in the present study in order to identify the optimal load that maximizes power output during the hang power clean. Fifteen men (age: 22.1 +/- 2.0 years, height: 180.1 +/- 6.3 cm, and body mass: 89.4 +/- 14.7 kg) performed the hang power cleans on a forceplate at 30-90% of one repetition maximum (1RM). Peak power w...

OBJECTIVE The primary purpose of this study was to compare the effects of explosive versus slow contractions on the rate of energy expenditure during and after resistance exercise. METHODS Nine men (20 +/- 2.5 yr) performed three exercise protocols using a plate-loaded squat machine, and a no-exercise (CONTROL) session in a randomly assigned, counterbalanced order. Subjects performed squats u...

The aim was to investigate the effects of concurrent exercise at moderate (MO) and light (LI) intensity on post-exercise hypotension (PEH). Ten women with borderline hypertension were submitted to the experimental procedure consisting of three sessions. In the MO session, the participants ran on the treadmill for 22 minutes at 65% of HRmax and then performed 5 resistance exercises against resis...