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| hockey conditioning, la weight loss, timing, blood sugars, business search engine, flexibility, lose body fat, ripped, duathlon training, jeremy likness, virginia fitness programs, discussion, weight loss vitamin, cycling coaching, personaltraining, 98, weight lifting program, new york city, workout routines, mulitsport training, supplements, bodypump, diet aids, software, | the local muscular fatigue, exerciseweightloss or a burning sensation from the isometrically contracted abdominal muscles, and from the working hip flexors produces fatigue in exerciseweightloss the pelvis area which we mistakenly interpret as the lower portion of the Rectus Abdominis being exercised. In movements where the Rectus Abdominis does Isotonically contract (contracts with movement), it flexes exerciseweightloss the spine by contracting the entire muscle from origin to insertion. The spine is not significantly flexed during the leg raise. Incidentally, both the spine and hip flexes during the Sit Up and Hip Raise. See Spot Reduction Myth above. High Repetitions Burn More Fat Myth Performing lighter weight with more repetitions (15-20 reps, 20-30 reps, or 20-50 reps) does not burn more fat or tone (simultaneous decrease of fat and increase muscle) better than a heaver weight with moderate repetitions (8-12 reps). |
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| It can be misleading to judge the mechanics of an exercise based upon localized muscular fatigue. The primary muscle used in hip flexion is actually the Iliopsoas, one of many hip flexors. The Iliopsoas, indeed, does happen to originate deep below the lower portion of the diet aids Rectus Abdominis. During the leg raise the entire abdominal musculature isometrically contracts (contracts with no significant movement) to: Posture the spine and pelvis Supports the weight of the lower body so diet aids the lumbar spine does not hyperextend excessively Maintains optimal biomechanics of the Iliopsoas Hips are kept from prematurely flexing if the diet aids lumbar spine and pelvis does not hyperextend excessively Iliopsoas can contract more forcefully in a relatively slight stretched position Bent knee (and hip) situps actually place Iliopsoas in a mechanical disadvantage Counteracts Ilopsoas's pull on spine Many people with weak abdominal muscles are not able to perform hip flexor exercises without acute lower back pain or discomfort The combination of |
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