Current Issue : October - December Volume : 2012 Issue Number : 4 Articles : 5 Articles
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Background: Partial weight bearing is thought to avoid excessive loading that may interfere with the healing\r\nprocess after surgery of the pelvis or the lower extremity. The object of this study was to investigate the\r\nrelationship between the ability to partially weight bear and the patient�s psychomotor skills and an additional\r\nevaluation of the possibility to predict this ability with a standardized psychomotor test.\r\nMethods: 50 patients with a prescribed partial weight bearing at a target load of 15 kg following surgery were\r\nverbally instructed by a physical therapist. After the instruction and sufficient training with the physical therapist\r\nvertical ground reaction forces using matrix insoles were measured while walking with forearm crutches.\r\nAdditionally, psychomotor skills were tested with the Motorische Leistungsserie (MLS). To test for correlations\r\nSpearman�s Rank correlation was used. For further comparison of the two groups a Mann-Withney test was\r\nperformed using Bonferroni correction.\r\nResults: The patient�s age and body weight significantly correlated with the ability to partially weight bear at a 15\r\nkg target load. There were significant correlations between several subtests of the MLS and ground reaction forces\r\nmeasured while walking with crutches. Patients that were able to correctly perform partial weight bearing showed\r\nsignificant better psychomotor skills especially for those subtests where both hands had to be coordinated\r\nsimultaneously.\r\nConclusions: The ability to partially weight bear is associated with psychomotor skills. The MLS seems to be a tool\r\nthat helps predicting the ability to keep within the prescribed load limits....
The purpose of this study was to determine if Critical Power (CP) and Anaerobic Work Capacity (AWC) could\r\nbe estimated from a single, all-out test of less than 3-min. Twenty-eight subjects (mean �± SD: age 23.3 �± 3.3 years,\r\nbody mass 71.6 �± 16 kg) performed an incremental cycle ergometer test to exhaustion to determine peak oxygen\r\nconsumption rate and heart rate peak. The 3-min all-out test was used to determine the criterion and six estimated\r\nvalues of CP and AWC. The criterion critical power (CP180) and anaerobic work capacity (AWC180) values were\r\ndetermined from the 3-min all-out test and were expressed as 30-s averages (155-180-s). The six estimated CP and\r\nAWC values were calculated from 30-s averages at decreasing 10-s intervals from 145 to 170-s (CP170 and AWC170),\r\n135 to 160-s (CP160 and AWC160), 125 to 150-s (CP150 and AWC150), 115 to 140-s (CP140 and AWC140), 105 to 130-s\r\n(CP130 and AWC130), and 95 to 120-s (CP120 and AWC120). Mean differences, total error, constant error, standard error\r\nof the estimate, and correlations were used to compare the criterion to the estimated CP and AWC values. The results\r\nof the present study indicated that 150-s was the shortest test duration that resulted in non-significant differences\r\nbetween the criterion (CP180 and AWC180) and estimated CP (CP150) and AWC (AWC150) values. The subsequent\r\nvalidation analyses showed that there were close agreements for the estimated CP150 and AWC150 versus the criterion\r\n(CP180 and AWC180) values. Therefore, the current findings indicated that estimates of CP and AWC were not affected\r\nby shortening the test by 30-s. Reducing the length of the test to 2.5 minutes provides a less strenuous, yet valid\r\nprotocol for estimating CP and AWC...
A few studies have evaluated swaying motion of the body in the seated posture; however, these studies did\r\nnot evaluate motion sickness caused by watching movies, traveling, etc. This study aimed to analyze stabilograms\r\nrecorded while the individuals were seated. Stabilometry was performed on 7 healthy male subjects (age, 21ââ?¬â??22\r\nyears) in the seated position 5 min before, and at 5-min intervals from 5 to 60 min after alcohol load. Alcohol caused\r\na decrease in the cerebellar equilibrium function that controls the vestibulospinal reflex. We adjusted the degree of\r\nsimulative effect on the human equilibrium function. The stabilograms of the test subjects were analyzed according\r\nto the area of sway, total locus length, and total locus length per unit area. We found that significant alcohol-induced\r\nchanges in the sway values in the seated posture were similar to those in the upright posture....
The purpose of the present study was to examine the heart rate responses during small-sided games with different\nnumber of players. Sixteen professional soccer players were evaluated for body fat (%) using the skin fold thickness at\nthree sites, VO2 max and running velocity at the lactate threshold using an incremental treadmill protocol. %HRmax was\nmeasured during four-, five-, six-, seven-, and eight-a side soccer games. The four-a-side game showed significantly\n(p<0.05) higher %HRmax in comparison to the other small-sided games. On the other hand, the %HRmax of the\neight-a-side game was significantly lower (p<0.05) than three-, four-, five-, six-, and seven-a-side game. The intensity\nof small-sided games decreases as the number of players increase. The monitoring of heart rate during small-sided\ngames combined with laboratory VO2 max tests is a possible way to define target training intensity zones....
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