"The moment you stand up" is the most dangerous! Lower back strain prevention for desk workers
"Acute lower back strain is something that happens to people who lift heavy objects"...Do you think that way? In reality, it's something that can happen to desk workers too.
After desk work, suddenly standing up or bending forward to pick something up can put strain on hardened muscles and joints, potentially causing acute lower back strain. The dangerous moment is precisely "when you suddenly move after sitting still."
■Why does sitting still become a trigger?
When you maintain the same posture for a long time, the muscles around your lower back remain tense and blood circulation worsens. As a result, the flexibility of muscles and ligaments decreases, making it easier to experience pain even with minor movements.
When muscles weaken due to lack of exercise or you do desk work sitting still for long hours, muscles in the shoulders, back, and lower back become rigid and the lumbar spine loses its flexibility.
■People who should be especially careful
People who work primarily at desks and sit continuously, or those who often work in the same posture for more than an hour at a time, are at high risk for acute lower back strain.
Furthermore, when core muscles such as abdominal and back muscles are weak, there is insufficient strength to support the lower back, making people with lack of exercise more prone to lower back pain.
■Prevention measures you can start today
①Avoid sitting continuously
The "stand up once every hour" habit mentioned in previous articles is the most effective prevention measure here as well.
②Take a breath before standing up
Simply straightening your lower back once before moving, rather than standing up suddenly, can reduce the risk.
③Strengthen the muscles that support your body
In addition to improving posture, strengthening the muscles that support your body is important for preventing lower back pain. People who are particularly prone to acute lower back strain share a common trait of having a stiff body and tight thigh muscles.
■If it does occur
When struck by sudden severe pain, avoid moving forcefully. Lie on your side, curl your body, bend your knees into a comfortable position, and relax with deep breathing. Immediately after onset, the key is to cool the affected area with an ice pack or similar.
■Summary
Acute lower back strain is not just an issue for "people who lift heavy objects"—sitting continuously day after day creates the foundation for it. The habits of "standing up once every hour" and "correct sitting posture" that we've introduced so far also serve as prevention for acute lower back strain.
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「立ち上がる瞬間」が一番危ない！デスクワーカーのぎっくり腰予防
「ぎっくり腰は重い荷物を持つ人がなるもの」…そう思っていませんか？実はデスクワーカーにも、十分起こりうる話です。
デスクワーク後に急に立ち上がったり、物を拾おうと前かがみになったりする動作で、硬くなった筋肉や関節に負担がかかり、ぎっくり腰を引き起こすことがあります。まさに「座りっぱなしから急に動く瞬間」が危険なタイミングなのです。
■なぜ座りっぱなしが引き金になるのか
長時間同じ姿勢でいると、腰回りの筋肉は緊張し続け血行が悪くなります。その結果、筋肉や靭帯の柔軟性が低下し、ちょっとした動きでも痛みが出やすくなります。
運動不足で筋肉が衰えたり、長時間座りっぱなしのデスクワークをしていたりすると、肩や背中、腰などの筋肉が硬直して腰椎の柔軟性が失われてしまいます。
■こんな人は特に要注意
デスクワーク中心で座りっぱなしの人や、1時間以上続けて同じ姿勢で作業することが多い人は、ぎっくり腰のリスクが高いといえます。
さらに腹筋や背筋など体幹の筋肉が弱いと腰を支える力が不足するため、運動不足の人ほど腰痛を招きやすくなります。
■今日からできる予防策
①座りっぱなしを避ける
これまでの記事でも触れてきた「1時間に1回立つ」習慣が、ここでも最大の予防策になります。
②立ち上がる前に一呼吸
急に立ち上がらず、一度腰を伸ばしてから動き出すだけでもリスクを減らせます。
③体を支える筋肉を鍛える
腰痛の予防には姿勢の改善に加え、体を支える筋肉の強化も重要です。特にぎっくり腰になりやすい人は体が硬く、太ももの筋肉が硬いという共通点があります。
■もし発症してしまったら
突然の激痛に襲われた際は、無理に動かさず横向きに寝て体を丸め、膝を曲げた楽な姿勢で深呼吸をしてリラックスしましょう。発症直後は氷枕などで患部を冷やすのがポイントです。
■まとめ
ぎっくり腰は「重い物を持つ人」だけの話ではなく、座りっぱなしの毎日が下地を作っています。これまで紹介してきた「1時間に1回立つ」「正しい座り方」の習慣が、そのままぎっくり腰の予防にもなっていますよ。
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