Stress Reactions or Stress Fractures

Stress reactions and stress fractures are bone injuries that occur when repeated loading exceeds the bone’s current capacity to adapt and recover. Rather than resulting from a single traumatic event, these injuries develop gradually over time with repeated walking, running, jumping, or impact activity.

A stress reaction represents an early stage of bone overload, where the bone becomes irritated but has not yet developed a clear fracture line. If loading continues without adequate recovery, this can progress to a stress fracture. These injuries are most common in the foot, ankle, and lower leg, particularly in individuals who have recently increased activity levels or training intensity.

• Localized pain that develops gradually with activity

• Pain that worsens with weight-bearing or impact

• Tenderness when pressing on a specific point of bone

• Swelling in the affected region

• Pain that may persist after activity or with walking

• Reduced tolerance for running, jumping, or prolonged standing

• Symptoms that improve with rest but return when activity resumes

• Sudden increases in training volume, intensity, or impact activity

• Inadequate recovery between loading sessions

• Reduced bone load tolerance or conditioning

• Changes in footwear, surface, or training routine

• Muscle fatigue or reduced lower limb strength

• Altered movement mechanics that increase bone stress

• Previous history of stress injury

Physiotherapy for stress reactions and stress fractures focuses on protecting bone healing while gradually restoring strength, movement, and load tolerance. Because these injuries relate to an imbalance between loading and recovery, treatment emphasizes careful activity modification followed by progressive return to impact activity.

Physiotherapy management may include:

• Guidance on activity modification and protected weight-bearing when needed

• Progressive strengthening of the foot, ankle, and lower limb muscles

• Gradual reintroduction of walking, running, and impact loading

• Movement retraining to reduce excessive bone stress

• Load management strategies to balance training and recovery

• Education on footwear, training progression, and prevention strategies

• Coordination with medical imaging or referral when appropriate

Recovery timelines vary depending on injury location, severity, and activity demands. Many stress reactions improve over several weeks, while stress fractures may require a longer period of protected loading before gradual return to activity. A structured, progressive rehabilitation program helps support safe bone healing and reduces the risk of recurrence.