Strength Programme for a Young Sprint Swimmer
A 15-year-old swimmer wants to add dry-land strength work to improve his 50 m freestyle start and turns. He trains in the pool nine times per week and has no injury history. His school timetable leaves two 40-minute windows for gym work. He has access to free weights and a coach who can supervise. His father is concerned that lifting will stunt his growth and asks you to justify or reject the plan.
1. Respond to the father's concern and justify whether supervised strength training is appropriate.
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The concern that resistance training stunts growth is not supported. The main theoretical worry is injury to growth plates from poor technique or excessive load, not a reduction in final height. With qualified supervision, appropriate technique, and sensible loading, resistance training is widely regarded as safe and beneficial for adolescents.
It is appropriate here because: he is supervised; he has no injury history; the goal is specific to start and turn performance, which depend on power and trunk control; and two short sessions fit his timetable without adding to an already high pool load of nine sessions.
Caveats to state honestly: he is still growing, so technique and load progression matter more than maximal loading; the programme must not compromise recovery from swimming; and the total weekly load must be monitored, because nine pool sessions plus gym work is a substantial schedule for a 15-year-old.
2. Design the two 40-minute sessions in outline and explain how you would judge whether they are working.
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Outline: keep sessions short and focused. Each begins with a brief warm-up. Session one emphasises lower-body and trunk strength and power with a small number of exercises, such as a squat pattern, a hinge pattern, and a trunk exercise, performed with moderate loads and good technique. Session two emphasises upper-body pulling and pushing plus a jump or throw for power, reflecting the propulsive demands of starts and turns. Keep repetitions moderate, avoid training to failure, and leave at least a day between gym sessions and the hardest pool sessions where possible.
Judging effectiveness: do not rely on the gym numbers alone. Track start and turn performance in the pool, such as time to 5 m and turn split, alongside technique quality and any soreness or fatigue. Review after six to eight weeks. If pool performance improves without increased fatigue or soreness, continue; if pool sessions suffer, reduce gym volume, since the gym exists to serve swimming, not compete with it.