웨이트 트레이닝 단련 근육,
질에서 차이 나
In contrast to bodybuilders, power athletes appeared to have an improved level of muscle quality
Photo: Alamy source telegraph.co.uk
edited by kcontents
케이콘텐츠 편집
우람한 근육을 자랑하는 보디빌더들은 힘도 무척 셀 것처럼 보인다. 웨이트트레이닝 등을 통해 형성된 커다란 근섬유가 보통 사람보다 훨씬 큰 힘을 발휘할 것처럼 보이기 때문이다.
그런데 이런 보디빌더들의 근육이 웨이트트레이닝을 전혀 하지 않은 사람들의 근육에 비해 강하지 않다는 연구결과가 나왔다. 이는 웨이트트레이닝 등으로 키운 근육의 질이 떨어진다는 것이다.
영국 맨체스터 메트로폴리탄 대학교 연구팀은 12명의 남자 보디빌더와 단거리 육상선수 등의 남자 운동선수 6명, 신체적으로 활동을 많이 하지만 웨이트트레이닝을 하지 않은 일반 남성 14명을 대상으로 연구를 진행했다.
연구팀은 조사 대상자의 넓적다리로부터 근육 샘플을 채취해 근섬유를 분리한 뒤 얼마나 빨리 그리고 강하게 수축하는지 등을 실험했다. 그 결과, 근육의 그램(g) 당 힘에서 보디빌더들은 운동선수나 일반 남성에 비해 약한 것으로 나타났다.
연구팀의 한스 데젠스 교수는 “대부분의 사람들은 우람한 근육의 보디빌더들은 헐크처럼 힘이 강할 것으로 생각한다”며 “하지만 이번 연구결과 근력운동을 전혀 하지 않은 일반인보다 약한 것으로 드러났다”고 말했다.
데젠스 교수는 “이는 보디빌더들의 근육의 질이 떨어진다는 것을 의미한다”며 “과도하게 근육이 증가하면 근육의 질에 해로운 영향을 줄 수 있으며 이 때문에 지나치게 크게 키운 근육이 보통 크기의 근육보다 힘을 발휘하지 못하는 것”이라고 말했다.
그는 “보디빌더들은 전체적인 근육의 양이 많기 때문에 그램 당 근육의 힘이 떨어지는 것을 어느 정도 보충한다”며 “이에 반해 운동선수의 근육은 질에서도 뛰어난 것으로 나타났는데 이는 웨이트트레이닝뿐만 아니라 여러 가지 훈련 방법으로 단련을 하기 때문”이라고 덧붙였다.
이번 연구결과는 ‘실험 심리학 저널(The Journal of Experimental Physiology)’에 실렸으며 영국 일간 텔레그래프가 보도했다. 코메디닷컴 권순일 기자 (kstt77@kormedi.com) |
Wimps are 'stronger than bodybuilders', study finds
A gram of bodybuilders' muscle is less powerful than the same amount of tissue from someone who did not weight train, tests show
Bodybuilders are only strong because they have so much muscle mass, research suggests. Photo:
Getty Images
By Agency
29 Sep 2015
Wimps might have the last laugh on gym-obsessed hunks - gram-for-gram, bodybuilders' muscles are weaker than those of people who never touch weights, research has shown.
Scientists found that bodybuilders had extraordinarily large muscle fibres capable of generating forces far greater than normal for an average human.
Yet tests showed that a gram of their muscle was less powerful than the same amount of tissue from someone who did not weight train.
Lead scientist Professor Hans Degens, from Manchester Metropolitan University, said: ''Most of us are impressed by the enormous muscle bulk of bodybuilders and think that these people must be extremely strong, like the 'Incredible Hulk'.
Scientists have discovered shorter workouts can help dieters lose more weight than working out for a full hour Photo: ALAMY
''The surprising thing, however, was that a gram of muscle from bodybuilders produced less force than that from non-bodybuilders, and it thus seems that the 'muscle quality' is less in bodybuilders.
''It appears that excessive muscle growth may have detrimental effects on the quality of the muscle, and one may well be better off with normal-sized muscles than with metabolically expensive large muscles.''
Bodybuilders are only strong because they have so much muscle mass - enough to compensate for the weakness of each gram, the research suggests.
''We had no indication that the proteins generating force - muscle motor proteins - work less in bodybuilders, but it could be that they have fewer motor proteins per gram muscle,'' Prof Degens added.
''It would be interesting to see what aspect in the training of bodybuilders causes this decrease in muscle quality.''
The scientists, whose findings are reported in the journal Experimental Physiology, took small muscle samples from the thighs of 12 male bodybuilders, six power athletes such as sprinters, and 14 men who were physically active but did not weight train.
• Meet the homeless bodybuilder who works out on the streets of Paris
Individual muscle fibres were isolated and tested to see how fast and powerfully they contracted. The results of these experiments allowed the team to make an assessment of muscle quality.
In contrast to bodybuilders, power athletes appeared to have an improved level of muscle quality, the researchers found.
''The training method seems to have an impact on muscle quality, which is of great importance for trainers and coaches interested in improving either performance or appearance of athletes,'' said Prof Degens.
http://www.telegraph.co.uk/news/newstopics/howaboutthat/11900273/Wimps-are-stronger-than-bodybuilders-study-finds.html
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