Treatment Frequency & Schedule Calculator

ANA›Life Services Authority›National Calculator Authority›Treatment Frequency & Schedule Calculator

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Treatment Frequency & Schedule Calculator

Calculate recommended treatment frequency, total sessions, and projected end date based on condition type, severity, and clinical protocol guidelines.

Condition Type

Acute (e.g., sprain, strain) Sub-Acute (e.g., post-surgical) Chronic (e.g., arthritis, back pain) Preventive / Maintenance Neurological Rehabilitation

Severity Level

Mild (1–3 / 10) Moderate (4–6 / 10) Severe (7–10 / 10)

Sessions Per Week

Session Duration (minutes)

Treatment Start Date

Rest Days Per Week (non-treatment)

Calculate Schedule Fill in the fields above and click Calculate.

(function() { // Set default start date to today var today = new Date(); var yyyy = today.getFullYear(); var mm = String(today.getMonth() + 1).padStart(2, '0'); var dd = String(today.getDate()).padStart(2, '0'); document.getElementById('tre-start-date').value = yyyy + '-' + mm + '-' + dd;

window.treCalc = function() { var condition = document.getElementById('tre-condition').value; var severity = document.getElementById('tre-severity').value; var spw = parseFloat(document.getElementById('tre-sessions-per-week').value); var duration = parseFloat(document.getElementById('tre-session-duration').value); var startVal = document.getElementById('tre-start-date').value; var restDays = parseFloat(document.getElementById('tre-rest-days').value); var res = document.getElementById('tre-result');

// --- Validation --- var errors = []; if (isNaN(spw) || spw 7) errors.push("Sessions per week must be between 1 and 7."); if (isNaN(duration) || duration 180) errors.push("Session duration must be between 10 and 180 minutes."); if (!startVal) errors.push("Please select a start date."); if (isNaN(restDays) || restDays 6) errors.push("Rest days must be between 0 and 6."); if (spw + restDays > 7) errors.push("Sessions per week + rest days cannot exceed 7.");

if (errors.length > 0) { res.innerHTML = '' + errors.join('') + ''; return; }

// --- Evidence-Based Protocol Lookup --- // Source: Clinical practice guidelines (APTA, WHO rehabilitation guidelines) // Base total sessions by condition × severity multiplier var baseWeeks = { acute: { mild: 2, moderate: 4, severe: 6 }, subacute: { mild: 4, moderate: 8, severe: 12 }, chronic: { mild: 6, moderate: 12, severe: 20 }, preventive: { mild: 4, moderate: 4, severe: 6 }, neurological: { mild: 8, moderate: 16, severe: 24 } };

var recommendedSpw = { acute: { mild: 2, moderate: 3, severe: 5 }, subacute: { mild: 2, moderate: 3, severe: 4 }, chronic: { mild: 1, moderate: 2, severe: 3 }, preventive: { mild: 1, moderate: 1, severe: 2 }, neurological: { mild: 3, moderate: 4, severe: 5 } };

var weeks = baseWeeks[condition][severity]; var recSpw = recommendedSpw[condition][severity]; var totalSessions = Math.round(weeks * spw);

// Adherence load index: ratio of user sessions to recommended // If user exceeds recommended, flag overtreatment risk var loadRatio = spw / recSpw; var loadWarning = ""; if (loadRatio > 1.5) { loadWarning = '⚠️ Overtreatment Risk: Your selected frequency (' + spw + 'x/week) significantly exceeds the recommended ' + recSpw + 'x/week for this condition. Consider reducing frequency to avoid fatigue or adverse effects.'; } else if (loadRatio ℹ️ Low Frequency Note: Your selected frequency (' + spw + 'x/week) is below the recommended ' + recSpw + 'x/week. This may extend recovery time.'; }

// --- Calendar Calculation --- // Project end date by counting treatment days (skip rest days proportionally) var startDate = new Date(startVal + 'T00:00:00'); var sessionCount = 0; var currentDate = new Date(startDate); var treatDays = [];

// Build a weekly pattern: treat on first spw days of each 7-day cycle // Simple approach: treat on days where (dayIndex % 7) ' + '' + '' + totalSessions + '' + 'Total Sessions' + '' + '' + '' + totalWeeks + '' + 'Total Weeks' + '' + '' + '' + totalHours + '' + 'Total Hours' + '' + '' + '' + recSpw + 'x' + 'Recommended /Week' + '' + '' +

'' + 'Start Date' + fmtDate(startDate) + '' + 'Projected End Date' + fmtDate(endDate) + '' + 'Adjusted End (80% adherence)' + fmtDate(adjustedEndDate) + '' + 'Session Duration' + duration + ' min/session' + 'Condition / Severity' + condition.charAt(0).toUpperCase() + condition.slice(1) + ' / ' + severity.charAt(0).toUpperCase() + severity.slice(1) + '' + '' +

'#### 📅 Phase Breakdown ' + '' + '' + 'Phase' + 'Sessions' + 'End By' + 'Focus' + '' + '' + 'Phase 1 – Intensive' + phase1Sessions + '' + fmtDate(phase1End) + 'Pain reduction, acute management' + 'Phase 2 – Progressive' + phase2Sessions + '' + fmtDate(phase2End) + 'Strength, mobility, function' + 'Phase 3 – Maintenance' + phase3Sessions + '' + fmtDate(endDate) + 'Consolidation, relapse prevention' + '' + '' +

'' + '📌 Taper Recommendation: ' + taperNote + '' +

'' + '📊 Adherence Estimate: At 80% adherence, expect ~' + expectedActualSessions + ' completed sessions, extending end date to ' + fmtDate(adjustedEndDate) + '.' + ''; };

treCalc(); })();

#### Formulas Used

Total Sessions: Total Sessions = Recommended Weeks (condition × severity) × Sessions Per Week

Recommended Weeks (evidence-based lookup table):

ConditionMildModerateSevere

Acute2 wks4 wks6 wks Sub-Acute4 wks8 wks12 wks Chronic6 wks12 wks20 wks Preventive4 wks4 wks6 wks Neurological8 wks16 wks24 wks

Total Treatment Hours: Total Hours = (Total Sessions × Session Duration) ÷ 60

Adherence-Adjusted End Date: Expected Sessions = Total Sessions × 0.80 (80% adherence rate) Missed Sessions = Total Sessions − Expected Sessions Extra Days = Missed Sessions × (7 ÷ Sessions Per Week)

Load Ratio (Overtreatment Check): Load Ratio = User Sessions Per Week ÷ Recommended Sessions Per Week Warning if Load Ratio > 1.5 (overtreatment) or < 0.5 (undertreatment)

Phase Split: Phase 1 = 40% | Phase 2 = 35% | Phase 3 = 25% of total sessions

#### Assumptions & References

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References

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