Concurrent Training for a Rugby Forward With Achilles Symptoms
A 28-year-old club rugby forward weighing 112 kg wants to improve strength and repeated-sprint ability before the season, which starts in six weeks. He has three 60-minute resistance sessions per week and two team training sessions that include high-speed running, contact, and scrummaging. His back squat is 140 kg, his 10-meter sprint is 1.85 seconds, and his repeated-sprint decrement is 8% on a 6 x 30-meter test. He has chronic midportion Achilles tendinopathy that flares with repeated sprinting and jumping but is currently mild at 2/10. He works full-time and sleeps about 6.5 hours. He wants to add two extra conditioning sessions because he feels "unfit." You have a trap bar, barbell, dumbbells, and a rowing ergometer; no sled. Team training is fixed on Tuesday and Thursday.
1. How would you lay out the training week to manage Achilles load, strength development, and repeated-sprint ability? Explain the ordering.
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I would use Monday for lower-body strength with the trap bar and split squats, Tuesday for team training, Wednesday for upper-body strength and low-impact aerobic work on the rower, Thursday for team training, Friday for a shorter power session and controlled conditioning, and Saturday or Sunday for rest. The lower-body strength day is placed before the first team session so the highest neuromuscular work is not performed on already-fatigued legs. Friday should avoid heavy eccentric Achilles loading because the athlete has just completed two team sessions; use low-volume jumps or medicine-ball work only if symptoms remain mild. I would not add two extra conditioning sessions. The team sessions already provide high-speed running and contact, and extra sprint volume would likely increase Achilles symptoms. Any added conditioning should be non-impact and brief. This layout manages the total Achilles load rather than treating strength and fitness as separate goals.
2. What conditioning prescription would you use to improve repeated-sprint ability without overloading the Achilles, and why?
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I would use short, controlled intervals on the rower twice per week, such as 8-10 x 20 seconds hard with 40 seconds easy, because rowing provides a cardiovascular stimulus with minimal ankle eccentric load. I would also include one running-based session only if his Achilles pain stays at 2/10 or less during and 24 hours after; for example, 6 x 15-second accelerations at 80-85% with full recovery, stopping before form deteriorates. The goal is to improve repeated-effort capacity without adding large volumes of sprinting on top of team training. A 6 x 30-meter repeated-sprint test already shows an 8% decrement, so more maximal sprints are not the first solution. I would progress rowing duration or repetition number before adding running volume. If pain rises above 3/10 or is worse the next morning, I would reduce running and maintain rowing and strength. This is a load-management decision, not a preference for rowing over running.
3. What load-monitoring markers and progression rules would you set, and how would you respond if Achilles pain rises to 4/10 after team training?
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I would track morning Achilles pain on a 0-10 scale, pain during and 24 hours after training, session-RPE load, sleep hours, and whether he can complete a single-leg heel raise without pain or weakness. A practical rule is to avoid progressing load when pain is above 3/10 or when pain is worse the next morning on two consecutive days. If pain rises to 4/10 after team training, I would not stop all activity, but I would remove running-based conditioning and jumping for the next several days, keep strength work at a tolerable level, and use isometric or low-level heel-raise work if it does not aggravate symptoms. I would also review his sleep and total weekly load, because 6.5 hours and extra conditioning would work against recovery. If pain remains at 4/10 or worsens despite load reduction, I would refer him for medical assessment. Progression would resume only when pain returns to 2/10 or less and heel-raise function is stable.