Abstract des Autors

This study explored the trunk and lower limb muscle activity of 15 males during unilateral hockey bag carriage of 10 percent, 20 percent, and 30 percent of one’s body weight (BW) compared with without a load during walking. The electromyography (EMG) activities of the left and right erector spinae, rectus abdominis, gluteus maximus, rectus femoris, vastus medialis, biceps femoris, semitendinosus, and the medial gastrocnemius were studied. A 2-way repeated measures analysis of variance (ANOVA) was used to examine the differences between the load weight and muscle side. Results showed significant increase in peak EMG and iEMG in the carrying side vastus medialis, rectus abdominis, semitendinosus, and gastrocnemii (p < 0.05) at the 30 percent BW load. The noncarrying side showed a greater peak EMG in the semitendinosus and rectus femoris at the 30 percent BW load when compared with the carrying side (p < 0.05). It was concluded that unilateral hockey bag carriage is similar to both backpack and side-pack carriage styles. Verf.-Referat