New Knee Pain at Intake: Coach, Modify, or Refer?
Renata is 41, a marketing manager who sits 9 hours a day and wants to lose 15 lb before a 16-week trip. She has adjustable dumbbells (5–25 lb), bands, a mat, and no bench. She reports right-knee pain 4/10 going down stairs and after sitting more than an hour; it began 3 weeks ago without a specific injury. She had ACL reconstruction 9 years ago and was cleared afterward. Sleep is 5.5 hours, stress 8/10, resting HR 78, BP 128/84, weight 198 lb, height 5 ft 7 in. Her 30-second video shows a chair squat with mild knee valgus and pain 3/10 at the bottom. She denies locking, giving way, night pain, or inability to bear weight, but notes occasional swelling after busy weekends. She asks for 'a hard program' to start Monday.
1. What assessment information should you collect before writing the program, and what can you not reliably assess through a remote video? Decide whether to refer now, coach with modifications, or pause, and justify the decision.
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Before prescribing, I need baseline pain behavior (0–10 at rest, on stairs, after sitting), swelling timing, function (30-second sit-to-stand, stair descent), hip and ankle mobility, single-leg balance, and sleep/stress. I also need a medical-history update: prior ACL rehab, medications, and whether a clinician has evaluated the new pain. What I cannot reliably assess by video is joint effusion, ligament integrity, cartilage status, or subtle strength deficits; those require an in-person exam. The absence of locking, giving way, night pain, and inability to bear weight lowers urgency but does not rule out pathology. Because the pain is new, mild, and activity-related, I would not diagnose; I would recommend a PT or orthopedist check if it persists beyond 2–3 weeks or worsens. I can coach with modifications now if pain stays at or below 3/10, settles within 24 hours, and there is no swelling. I would avoid deep loaded knee flexion, impact, and high volume, and document the decision and referral threshold.
2. Outline the first 14 days of onboarding and training, including specific screens, load limits, and pain-monitoring rules.
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Days 1–3: video movement screen (chair squat, low step-down, hip hinge, band lateral walk, single-leg stance), baseline pain and swelling log, and 30-second sit-to-stand. Days 1–14: two full-body sessions weekly, 20–30 minutes, RPE 5–6. Include glute bridges, band lateral walks, low step-ups (4–6 inches), sit-to-stand, hamstring curls, and isometric wall sit only if pain-free. Avoid squats below 60 degrees of knee flexion, lunges, running, and plyometrics. Upper body: dumbbell floor press, row, and band pull-apart. Pain rule: during exercise at or below 2/10 and back to baseline within 24 hours; if pain exceeds 3/10 or swelling appears, reduce range or load by 30–50% next session. Daily 2-minute check-in for pain, swelling, and sleep. Reassess stairs and sit-to-stand at day 14. This is a load-tolerance test, not a cure; the goal is to establish a baseline and avoid flare-ups while gathering data.
3. What would you do if, at the end of week 2, knee pain is 6/10 on stairs and swelling persists for more than 24 hours after sessions?
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A pain level of 6/10 plus swelling lasting more than 24 hours is a change in irritability, not a normal training response. I would stop the aggravating lower-body exercises rather than push through. I would ask about mechanism, swelling onset, night pain, locking, giving way, and whether the knee is warm or visibly swollen; if any red flag is present, or if symptoms persist beyond 48–72 hours, I would refer to orthopedics or PT. I would keep pain-free upper-body and hip/ankle work, recommend relative rest and elevation if swollen, and document the change. I would not prescribe a new knee program until a clinician evaluates or symptoms settle. The coaching decision is to protect the client and the scope boundary: I can modify load, but I cannot diagnose or treat a joint effusion. If cleared, I would restart at 50% of prior load with pain at or below 2/10 and a 24-hour response check.