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      Laughing: a demanding exercise for trunk muscles.

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          Abstract

          Social, psychological, and physiological studies have provided evidence indicating that laughter imposes an increased demand on trunk muscles. It was the aim of this study to quantify the activation of trunk muscles during laughter yoga in comparison with crunch and back lifting exercises regarding the mean trunk muscle activity. Muscular activity during laughter yoga exercises was measured by surface electromyography of 5 trunk muscles. The activation level of internal oblique muscle during laughter yoga is higher compared to the traditional exercises. The multifidus, erector spinae, and rectus abdominis muscles were nearly half activated during laughter yoga, while the activation of the external oblique muscle was comparable with the crunch and back lifting exercises. Our results indicate that laughter yoga has a positive effect on trunk muscle activation. Thus, laughter seems to be a good activator of trunk muscles, but further research is required whether laughter yoga is a good exercise to improve neuromuscular recruitment patterns for spine stability.

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          Author and article information

          Journal
          J Mot Behav
          Journal of motor behavior
          1940-1027
          0022-2895
          2014
          : 46
          : 1
          Affiliations
          [1 ] a Motion Science , Westfälische Wilhelms-Universität , Münster , Germany.
          Article
          10.1080/00222895.2013.844091
          24246140

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