How is 1RM estimated from submaximal testing?

Epley formula: 1RM = weight × (1 + reps/30). Brzycki formula: 1RM = weight / (1.0278 − 0.0278 × reps). Both valid for ≤10 reps.

What is the 10% rule for load progression?

Increase weekly load volume by no more than 10% per week to minimize overuse injury risk. For pain populations, 5% per week is more conservative.

Calculate progressive loading parameters for musculoskeletal rehabilitation using the FITT-VP principle and percentage of 1RM.

Tap constants to insert

Physical Constants Reference

Constant	Symbol	Value	Units
Speed of light	c	2.99792458×10⁸	m/s
Planck's constant	h	6.62607015×10⁻³‴	J·s
Boltzmann constant	kʙ	1.380649×10⁻²³	J/K
Avogadro's number	Nₐ	6.02214076×10²³	mol⁻¹
Gravitational constant	G	6.6743×10⁻¹¹	N·m²/kg²
Gas constant	R	8.31446	J/(mol·K)
Elementary charge	e	1.602176634×10⁻¹⁹	C
Electron mass	mₑ	9.1093837015×10⁻³¹	kg
Proton mass	mₚ	1.67262192369×10⁻²⁷	kg
Fine-structure constant	α	7.2973525693×10⁻³	dimensionless

1
Enter patient clinical data
Enter the patient's age, weight, lab values, vitals, or clinical findings into the Rehabilitation Progression Calculator — Load & Volume input fields.
2
Select the clinical scoring system
Select or confirm the appropriate clinical scoring system or reference range for the patient population.
3
Calculate the clinical score
Press Calculate to compute the clinical score, risk estimate, or diagnostic result.
4
Interpret the result
Review the output against the provided reference ranges, risk categories, or guideline thresholds. Consult a qualified clinician before acting on results.

Result = f(patient inputs, clinical reference)

patient inputs: Age, weight, height, lab values, vitals, or clinical findings entered into the Rehab Progression.
clinical reference: Reference range, scoring system, or population standard the result is compared against.
Result: Computed clinical score, risk estimate, or diagnostic value.

Clinical results are decision-support only and must be interpreted by a qualified clinician.

Clinical score: A numeric value derived from patient inputs that estimates risk, severity, or diagnostic likelihood for a given condition.
Reference range: The set of values considered normal for a healthy population, used to interpret a calculated result.
Sensitivity: The probability that a positive result correctly identifies a patient with the condition.
Specificity: The probability that a negative result correctly identifies a patient without the condition.
Rehab progression calculator: A key concept referenced by the Rehab Progression: Calculate progressive loading parameters for musculoskeletal rehabilitation using the FITT-VP principle and percentage of 1RM.
1RM calculator: A key concept referenced by the Rehab Progression: Calculate progressive loading parameters for musculoskeletal rehabilitation using the FITT-VP principle and percentage of 1RM.
Progressive overload: A key concept referenced by the Rehab Progression: Calculate progressive loading parameters for musculoskeletal rehabilitation using the FITT-VP principle and percentage of 1RM.
Therapeutic exercise: A key concept referenced by the Rehab Progression: Calculate progressive loading parameters for musculoskeletal rehabilitation using the FITT-VP principle and percentage of 1RM.

Gait Analysis

Physiotherapy & Rehabilitation

ROM Scoring

Physiotherapy & Rehabilitation