One night of sleep deprivation decreases treadmill endurance performance
( European Journal of Applied Physiology 2009; 107: 155-161)
Pickett and Morris (1) reported that time to exhaustion (TTE) was unaltered following 30 h of sleep deprivation, whereas Martin (2) reported only a marginally (P = 0.05) significant decrease in TTE following 36 h of sleep deprivation. In addition, the effect of sleep deprivation on pacing is unknown as previous investigations used time to exhaustion rather than fixed end point tests to determine performance. The nature of these tests require that athletes exercise until exhausted, which is unlike most athletic events. For this reason, the authors of this investigation used a distance-based timed test to examine the effect of sleep deprivation on endurance performance.
This study examined the effect of one night of sleep deprivation on pre-loaded, 30 minute, self-paced endurance performance. In addition, the authors investigated how sleep deprivation effects pacing, cardiorespiratory, thermoregulatory, and perceived exertion. It was hypothesized that endurance performance would decrease following 30 hours of sleep deprivation.
In this investigation, 30 hours of sleep deprivation was shown to have a negative impact on pre-loaded endurance performance. Even though the subjects completed a shorter distance after sleep deprivation, their perception of effort (RPE) was the same in both trials. This indicates that the subjects felt like they were working just as hard in the sleep deprivation trial as they had under control conditions. Therefore, it is possible that sleep deprivation affects performance through alterations in perceived exertion.
In addition to endurance performance, the authors examined cardiorespiratory, and thermoregulatory responses to exercise. The results indicated that sleep deprivation has a limited effect on cardiorespiratory and thermoregulatory responses to exercise.
1. Start @ 70/45 kg on the barbell and on the minute for as many minutes perform 1 squat clean; add 5kg to barbell per minute.
rest 5 min
2. Using the weight you finished with Dead Lift it on the minute for 2 reps every minute; add 10kg to barbell per minute.
rest 5 min
3. for time:
50 HSPU on parallettes
post loads and times to comments like this:
2. 220 kg
3. 10:28 (include height of parallettes)