These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Energy consumption during level walking with arm and knee immobilized.
    Author: Hanada E, Kerrigan DC.
    Journal: Arch Phys Med Rehabil; 2001 Sep; 82(9):1251-4. PubMed ID: 11552199.
    Abstract:
    OBJECTIVE: To determine whether there is an increase in energy use for able-bodied subjects with their arm and/or knee immobilized, while walking on a level surface at comfortable walking speed (CWS). DESIGN: Prospective, quantitative, with randomly sequenced experimental trials. SETTING: Rehabilitation center. PARTICIPANTS: Ten healthy subjects, none of whom had gait abnormality. INTERVENTION: Subjects walked on a treadmill at CWS under 4 conditions: (1) without an arm or knee immobilized (N); (2) with an arm immobilized (AI); (3) with a knee immobilized (KI); and (4) with both arm and ipsilateral knee immobilized (KAI). MAIN OUTCOME MEASURES: Breath-by-breath oxygen cost; differences in energy consumption in trials during which constraints were used were compared with energy consumed under the N condition and the percentage of change was calculated. RESULTS: Mean oxygen cost increased by 22.7% with a knee immobilized compared with N values (mean difference,.044 mL x kg(-1) x m(-1), p <.0001), and increased by 24.7% with a knee and arm immobilized (mean difference,.048 mL x kg(-1) x m(-1), p <.0001). However, no significant differences existed in oxygen cost with AI compared with N, or with KAI compared with KI. The differences in CWS between the stages followed a similar pattern. CONCLUSIONS: Arm immobilization does not increase energy expenditure during level walking at CWS, and does not further increase energy expenditure when the ipsilateral knee also is immobilized.
    [Abstract] [Full Text] [Related] [New Search]