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Research Article

Performance of Repetitive Tasks Induces Decreased Grip Strength and Increased Fibrogenic Proteins in Skeletal Muscle: Role of Force and Inflammation

  • Samir M. Abdelmagid,

    Affiliation: Department of Surgery, Plastic and Reconstructive Division, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America

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  • Ann E. Barr,

    Affiliation: College of Health Professions, Pacific University, Hillsboro, Oregon, United States of America

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  • Mario Rico,

    Affiliation: Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

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  • Mamta Amin,

    Affiliation: Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

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  • Judith Litvin,

    Affiliations: Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America, Musculoskeletal Research Group, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

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  • Steven N. Popoff,

    Affiliations: Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America, Musculoskeletal Research Group, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

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  • Fayez F. Safadi,

    Affiliations: Musculoskeletal Research Group, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America, Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, Ohio, United States of America

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  • Mary F. Barbe mail

    mary.barbe@temple.edu

    Affiliations: Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America, Musculoskeletal Research Group, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

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  • Published: May 31, 2012
  • DOI: 10.1371/journal.pone.0038359

About the Authors

Samir M. Abdelmagid
Department of Surgery, Plastic and Reconstructive Division, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
Ann E. Barr
College of Health Professions, Pacific University, Hillsboro, Oregon, United States of America
Mario Rico
Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America
Mamta Amin, Judith Litvin, Steven N. Popoff, Mary F. Barbe
Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America
Judith Litvin, Steven N. Popoff, Fayez F. Safadi, Mary F. Barbe
Musculoskeletal Research Group, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America
Fayez F. Safadi
Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, Ohio, United States of America

Corresponding Author

Email: mary.barbe@temple.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MFB AEB FS. Performed the experiments: SA AEB MR MA MFB. Analyzed the data: MFB. Wrote the paper: SA AEB JL SP MFB. Engaged in active critical discussions for intellectual content: SA AEB JL SP MFB.