Endurance Times of Trunk Muscles in Male Intercollegiate Rowers in Hong Kong

Chan RH. Endurance times of trunk muscles in male intercollegiate rowers in Hong Kong. To establish isometric endurance times of trunk muscles and their ratios in a group of healthy intercollegiate rowers in Hong Kong for clinical assessment reference, and to compare the trunk endurance profile of the rowers in the current study with that of nonrowers in another study. Isometric endurance times were measured in 4 different positions in a cross-sectional manner. A subset of 5 subjects was tested 3 times 2 days and 1 week apart to evaluate reliability. Sports medicine department of a national sports institute. Thirty-two subjects selected from a group of 42 male intercollegiate rowers reported to have more than 6 months of rowing experience and without history of low back pain. Not applicable. Trunk muscle endurance times in seconds and ratios of endurance times normalized to that of the extensor muscle. The trunk flexor (mean ± standard deviation, 176.56±88.58s) had the best endurance times among all the trunk muscles tested (extensor mean, 114.28±34.62s; left lateral flexor mean, 94.53±32.97s; right lateral flexor mean, 98.13±41.38s). No significant difference was found between the left and right lateral flexors ( P