मेट्रिक्स लाइब्रेरी

Welcome to the Scientific मेट्रिक्स लाइब्रेरी. This repository contains detailed, evidence-based deep dives into the health metrics tracked by Apple Health and modern wearable devices.

Note: All content is grounded in peer-reviewed clinical research (NEJM, Lancet, JAMA) and international consensus guidelines (WHO, AHA, IAS).

🏃 गतिविधि एवं फिटनेस

Quantifying activity volume and intensity. * कदम गणना (The 10k myth vs. Lancet mortality data) * Active Energy (Calories & Constrained Energy Model) * चढ़ी गई मंज़िलें (Vertical effort & cardiovascular health) * चलने/दौड़ने की दूरी (Stride length & volume) * Apple व्यायाम समय (The "Green Ring" & WHO vs. MVPA)

❤️ हृदय एवं रक्त संचार

The engine of life. Vital signs and recovery metrics. * आराम हृदय गति (Cardiovascular efficiency) * हृदय गति परिवर्तनशीलता (HRV) (Stress, recovery & nervous system balance) * रक्तचाप (Hypertension & SPRINT trial targets) * ECG & Afib (Rhythm analysis & Apple Heart Study) * हृदय गति रिकवरी (Post-exercise autonomic function) * चलने की औसत हृदय गति (Proxy for aerobic fitness)

😴 नींद एवं रिकवरी

Restoration, brain health, and metabolic reset. * नींद के चरण (Deep/REM functions & brain health) * नींद की अवधि (The U-shaped mortality curve) * श्वसन दर (The "forgotten vital sign") * स्लीप एपनिया स्क्रीनिंग (Breathing disturbances & O2)

🫁 श्वसन & Vitals

Lung function and blood oxygenation. * VO2 Max (कार्डियो फिटनेस) (The strongest predictor of longevity) * Blood Oxygen (SpO2) (Hypoxemia & altitude acclimatization)

🚶 गतिशीलता एवं चाल

Functional independence and fall risk. * चलने की स्थिरता (Fall risk prediction & TUG validation) * चाल मेट्रिक्स (Asymmetry & walking speed) * छह-मिनट वॉक (Functional capacity standard)

⚖️ शारीरिक माप

Composition over weight. Metabolic health markers. * वज़न एवं BMI (Screening utility vs. inaccuracy) * कमर की परिधि (Visceral fat & metabolic risk) * Body Fat % (Age-adjusted healthy ranges)

अंतिम अपडेट: 2025