Publications by authors named "J L Ankersen"

Aim: Pilonidal sinus disease (PSD) is a common condition particularly affecting the young population. The disease is incompletely understood, and optimal treatment is still debated. However, off-midline closure techniques have become the standard of care in more advanced cases.

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  • * Among 380 patients, 79 were adolescents (median age 17.2), with most presenting for surgery due to extensive cases, non-healing, or recurrence; 69% of these patients healed without complication.
  • * Long-term follow-up (average 62 months) revealed a 5-year recurrence rate of 19% in adolescents, which is slightly higher than the 17% observed in adults, indicating that BCL surgery is a viable treatment option for adolescents
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Sidelying hip abduction (SHA) is a common exercise utilized in rehabilitation to strengthen the gluteus medius (GMed). Alterations in the exercise can produce different patterns of muscular activity. No studies have examined the effect of mechanical pelvic stabilization during SHA.

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  • Blood flow restriction (BFR) training is gaining popularity, but the specific effects of different levels of limb occlusion on shoulder muscle activity are not fully understood.
  • A study with 15 participants tested how varying occlusion levels (0%, 25%, 50%, and 75% LOP) during low-intensity shoulder exercises affected muscle electrical activity, with findings suggesting that muscle engagement increased with occlusion but plateaued above 50%.
  • Results indicated significant increases in muscle activity (EMGa) for rotator cuff exercises at higher occlusion percentages, with specific muscles like the anterior deltoid and trapezius showing heightened activity at lower occlusion levels (≥25% LOP) and diminishing
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  • The study investigates how combining blood flow restriction (BFR) and low-load resistance exercise (LIX) can enhance shoulder muscle development and strength in collegiate baseball pitchers.
  • The research involves 28 pitchers split into two groups: one using BFR during training and the other performing standard training without BFR.
  • Results showed that the BFR group had significantly greater increases in shoulder muscle mass and strength compared to the non-BFR group after an 8-week training period.
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