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- Title
Muscle Use During Low-Impact Aerobic Exercise (Gliding) Compared to Conventional Weight Lifting Equipment, Part 2.
- Authors
Petrofsky, Jerrold S.; Hill, Jennifer; Hanson, Ashley; Morris, Amy; Bonacci, Julie; Jorritsma, Rachel
- Abstract
Six subjects between the ages of 18 and 35 years old were examined to compare muscle use. The rectus abdominus, erector spinal, gluteus maximus. quadriceps, hamstring, gastrocnemius. and tibiallis anterior muscles were assessed by electromyogram. Conventional exercise was performed by weight lilting on quadriceps, hamstring, abdominal and back extension machines and then compared to low-impact aerobic exercise involving extension of the legs on inexpensive discs that slide on the floor, a technique called Gliding. Subjects performed a maximum effort for each muscle and by measuring the maximum electromyogram. data could then he normalized to assess muscle use during the various exercises. The results of the experiments showed that although there is no external resistance in low-impact aerobics Gliding, the equivalent muscle activity was that of moderate exercise on conventional strength training exercise machines. For example, the level of muscle activity of the central core stabilizing muscles (rectus abdominus and paraspinals) during Gliding was equivalent to loads of 54 kg and 36 kg, respectively, during trunk flexion and extension on commercial exercise equipment. Thus effective muscle training can be accomplished with the use of inexpensive Gliding exercises.
- Subjects
MUSCLE strength; AEROBIC exercises; GLIDING &; soaring; PHYSICAL fitness; EXERCISE equipment
- Publication
Journal of Applied Research, 2005, Vol 5, Issue 1, p136
- ISSN
1537-064X
- Publication type
Article