**📅 Date:** ➤ ⌈ [[2025-02-19-Wed〚Endocrinology ▪InBody 🆚 Body Scan ▪ RMR Tests〛]]⌋ **🗺️ Site**： **👤 Who**： **📌 Time**: #🕛/ **💭 Note:** ➤ InBody Less accurate than DEXA, ==especially for fat %== ➤ Summary ✔ **Use InBody** for **fitness tracking, muscle/fat analysis, and frequent monitoring**. ✔ **Use DEXA** for **bone density measurement and highly precise fat % tracking**. ✔ **Use 3D Body Scanners** for **visual progress tracking only** ⇩ 🅻🅸🅽🅺🆂 ⇩ **🏷️ Tags**: #🆚 **🗂 Menu**: ⌈[[✢ M O C ➣ 02 ⌈F E B - 2 0 2 5⌉ ✢|2025-F E B-MOC]]⌋ ➤ ⌈[[InBody & RMR Tests]]⌋ ➤ ⌈⌋ ➤ ⌈⌋ **📑 PDF**： **🌐 Link**: --- ## I. What is InBody? (Bioelectrical Impedance Analysis - BIA) ![[Pasted image 20250219214410.png|#left|300]] - Uses **low-level electrical currents** to measure body composition. - Estimates **muscle mass, fat %, water levels**, and **visceral fat**. - **No radiation exposure**, making it safe for regular use. - **Quick scan (1-2 minutes)**, commonly found in **gyms & clinics**. ### **✅ Pros** - Fast, affordable, and easy to access. - Good for tracking **fitness progress** over time. - No radiation, safe for frequent use. ### **❌ Cons** - **Less accurate** than DEXA, ==especially for fat %==. - Results can be affected by **hydration & food intake**. - **Does not measure bone density**. --- ## II. What is a Body Scan? (DEXA, 3D Scanners, etc.) ![[Pasted image 20250219215740.png|#left|300]] ### 🔹 DEXA Scan (Dual-Energy X-ray Absorptiometry) - Uses **low-dose X-ray** to measure **bone density, fat, and muscle mass**. - **Gold standard** for **body composition analysis & osteoporosis risk**. - **Highly accurate but more expensive**. ### **✅ Pros** - **Most precise** for **fat %, bone health & lean mass**. - Ideal for **medical & research purposes**. ### ❌ Cons - Requires **clinic visits** (not available in regular gyms). - **Uses radiation**, not suitable for frequent use. - **More expensive** than InBody. --- ### 🔹 3D Body Scanner ![[Pasted image 20250219215646.png|Left|300]] - Uses **optical scanning & AI** to create a **visual 3D model of the body**. - **Does not measure fat %, muscle mass, or bone density**. - Best for **tracking body shape changes**. ### **✅ Pros** - Great for **visual transformation tracking**. - No radiation or electric currents. ### ❌ Cons - **Not useful for detailed body composition analysis**. --- ## **3️⃣ InBody vs. DEXA: Quick Comparison Table** | Feature | **InBody (BIA)** | **DEXA Scan** | |---------|-----------------|--------------| | **Technology** | Bioelectrical Impedance | Low-dose X-ray | | **Accuracy** | Moderate | **High (Gold Standard)** | | **Metrics** | Muscle, fat, water | **Muscle, fat, bone density** | | **Bone Density** | ❌ No | ✅ Yes | | **Visceral Fat** | ✅ Yes (Estimated) | ✅ **Highly accurate** | | **Time Needed** | ⏱ 1-2 min | ⏱ 10-20 min | | **Radiation?** | ❌ No | ⚠️ Yes (Low-dose) | | **Cost** | 💰 Affordable | 💰💰 Expensive | | **Best For** | Gym-goers, fitness tracking | Medical use, detailed analysis |