How to Keep Training With an Injury (Without Making It Worse)

Being injured doesn't have to mean being sedentary. With the right approach, you can maintain almost all of your fitness — and in some cases, come back stronger — while an injury heals.

The Fitness Loss Problem

Aerobic fitness begins to decline after about 10 days of complete inactivity; strength begins declining after 2–3 weeks. But in both cases, regaining lost fitness takes far less time than the original development. If you maintain even 50% of your normal training through modified exercise, the fitness loss is minimal.

Finding Your Training Alternatives

• Lower limb injuries: Upper body strength training, seated cardio, water running (aqua jogging with a flotation belt), and upper body HIIT.
• Upper limb injuries: Running, cycling, lower body strength training, walking.
• Spinal injuries: Swimming (often well-tolerated), stationary cycling, and specific rehabilitation exercises prescribed by your practitioner.
• Knee injuries: Swimming, upper body training, and potentially cycling if the injury type allows.

Aqua Jogging: The Underrated Tool

With a flotation belt in deep water, the movement pattern is almost identical to land running — the same muscles fire in the same sequence. Elite distance runners use aqua jogging to maintain run-specific fitness through lower limb injuries and have returned to full performance within days of resuming land training.

The Psychological Aspect

For regular exercisers, injury-related inactivity often causes anxiety, mood disturbance and loss of identity. Maintaining some form of training — even modified — preserves the psychological benefits of exercise and helps maintain a positive mindset during recovery.

For guidance on how clinicians think about pain during exercise, see our article on should you avoid pain when exercising. Our exercise physiology team specialises in designing modified training programmes that maintain fitness during injury rehabilitation. For a framework on how to progress from injured to fully active, see our Dynamic Resilience System™ which outlines the staged approach we use at Elevate Health Clinic.

Upper Body Training During Lower Limb Injury

A lower limb injury — ankle sprain, knee pain, calf strain — does not prevent upper body training. Seated or supported upper body exercises (bench press, seated row, lat pulldown, overhead press, dumbbell curls) can be performed while the lower limb recovers, maintaining upper body strength and — importantly — maintaining the exercise habit and psychological routine that training provides. This matters more than most athletes recognise: the deconditioning that comes from complete cessation of training is partly physical, but the disruption to routine and mood is often equally significant.

For lower limb injuries that allow partial weight-bearing, seated cycling (stationary bike with minimal resistance and a high seat position to reduce knee flexion load), upper body ergometer training, and swimming with a pull buoy (eliminating kick) can maintain cardiovascular fitness with minimal lower limb stress.

Lower Body Training During Upper Limb Injury

Upper limb injuries — shoulder, elbow, wrist — similarly do not prevent lower body training. Squats and deadlifts may need to be modified (trap bar or goblet squat variations reduce grip demand; belt squats eliminate upper limb loading entirely). Running and cycling are typically unaffected by upper limb injuries. Core training with reduced upper limb involvement (leg raises, hip bridges, plank variations with forearm rather than hand contact) maintains trunk stability throughout recovery.

Designing Your Injury-Period Programme

The goal of training during injury is to maintain as much fitness as possible — cardiovascular, muscular and neuromuscular — while protecting the injured tissue and not interfering with its healing. This requires some planning. A practical approach:

• Identify which movements and loading patterns provoke the injury (these are temporarily off the menu)
• Identify what remains available — what joints, muscle groups and movement patterns are unaffected
• Design a modified programme that trains the available capacity while progressively loading the injured tissue within its tolerance
• Reassess weekly — what was off-limits in week one may be accessible in week three as healing progresses

Our exercise physiology team specialises in designing modified training programmes for injured athletes at our Bella Vista clinic. If you are managing an injury and want to keep training intelligently rather than stopping entirely, an assessment will identify what is safe, what to progress and when to return to full training.

Frequently Asked Questions

Can I keep training with a muscle strain?

In most cases, yes — with modification. Complete rest is rarely optimal for muscle strains beyond the initial 24–48 hours. Modified training that loads the injured area within tolerance — while maintaining fitness through unaffected body parts — generally produces better outcomes than full cessation.

How do I know if an injury is serious enough to stop training?

Stop training and seek assessment if you experience: significant swelling, bruising or deformity; inability to weight-bear through a lower limb; sharp neurological symptoms such as radiating pain, numbness or weakness; or pain that worsens significantly during activity. Mild to moderate pain that settles quickly is generally more manageable with modification.

What can I train when injured?

The goal is to maintain as much of your fitness as possible while the injured area recovers. Lower limb injuries can often allow upper body training, swimming or cycling (if load-appropriate). Upper limb injuries can allow lower body work and aerobic exercise. An exercise physiologist can design a specific modified programme based on your injury and goals.

References

1. Bleakley CM, et al. (2012). PRICE needs updating, should we call the POLICE? British Journal of Sports Medicine, 46(4), 220–221.
2. Gabbett TJ. (2016). The training-injury prevention paradox. British Journal of Sports Medicine, 50(5), 273–280.
3. Heidari J, et al. (2017). A biopsychosocial approach to return to sport following lower limb injury. Sports Medicine, 47, 1–6.