Starting to run does not mean running continuously on day one. Alternating walking and running gives your body and confidence time to adapt while still creating a clear sense of progress.
Begin with walk-run intervals
The NHS Couch to 5K plan builds running gradually over nine weeks with three runs each week and rest days between them. Its first sessions alternate short running intervals with walking rather than asking beginners to run five kilometres immediately.
Use a pace that feels controlled. The goal of an early session is to finish with enough confidence to return, not to prove how hard you can work once.
Record the context, not only the distance
Distance is useful, but it does not explain the whole session. Record the walk-run structure, total time, how the effort felt and whether anything was uncomfortable. Reviewing those details can show progress before pace changes dramatically.
- Total moving time and approximate distance
- The length of the running intervals
- Perceived effort and breathing
- Any pain or unusual discomfort
- How recovered you feel before the next session
Give the plan room to adapt
Rest days support recovery. If a week feels too demanding, repeat it rather than forcing the next increase. The NHS advises stopping running if you are in pain and getting medical advice when pain is severe, swollen or does not settle.
Once continuous running feels comfortable, pace and distance can become useful next questions. Consistency comes first.
Sources and further reading
This guide provides general information. Health and exercise needs vary, so seek qualified advice where appropriate.

