Front Crawl for Adults: What the Research Says About Health

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By Mo (sports scientist)··7 min read·0 views

Front Crawl for Adults: What the Research Says About Health

Many adults have swum breaststroke for years and eventually wonder whether they should learn front crawl. The answer has two parts: what swimming does for health is well studied. Why front crawl in particular has advantages is something we see in our lessons every week. Here we separate clearly what studies show from what is experience from the pool.

In short:
  • Longevity: In a British cohort study of 80,306 adults, swimmers had a 28% lower risk of dying from any cause and a 41% lower risk of dying from cardiovascular disease (Oja et al. 2017).
  • Blood pressure: In a controlled trial, 12 weeks of swim training lowered systolic blood pressure from 131 to 122 mmHg in adults over 50 with mildly raised blood pressure (Nualnim et al. 2012).
  • Joints: Water supports your body weight. For knee or hip osteoarthritis, water-based exercise slightly improves pain and function (Cochrane 2016).
  • Important: The studies look at “swimming” in general, not front crawl specifically. Observational studies show associations, not proof of cause and effect.

What does the research say about swimming and health?

A longer life? Two large cohort studies

Oja and colleagues (British Journal of Sports Medicine, 2017) analysed data from 80,306 British adults (average age 52). Swimmers had a 28% lower risk of dying from any cause (hazard ratio 0.72; 95% confidence interval 0.65 to 0.80) and a 41% lower risk of dying from cardiovascular disease (hazard ratio 0.59; 0.46 to 0.75). Racquet sports (hazard ratio 0.53 for all-cause mortality) and aerobics (0.73) also showed clear associations.

An older US study (Chase, Sui and Blair, 2008) followed 40,547 men aged 20 to 90 for about 13 years on average. After adjusting for age, BMI, smoking, alcohol and family history, swimmers had a 53% lower risk of death than sedentary men, 50% lower than walkers and 49% lower than runners.

The honest context: These are observational studies. People who swim regularly also differ from people who do not in other ways (income, diet, existing illness). The researchers adjusted for many factors, but not all. The numbers show a strong association; they do not prove that swimming alone extends life. The Chase study also includes only men.

Blood pressure: what 12 weeks of swim training can do

Nualnim and colleagues (American Journal of Cardiology, 2012) randomly assigned 43 otherwise healthy adults over 50 (average age 60) with prehypertension or stage 1 hypertension to 12 weeks of swim training or to relaxation and stretching. Systolic blood pressure in the swimming group fell from 131 to 122 mmHg, while the control group showed no significant changes. Carotid artery compliance also rose by 21%. The study is small and short, but it shows that swimming can measurably affect blood vessels.

Easy on the joints: why water relieves knees and hips

In water, buoyancy carries a large part of your body weight. A Cochrane review (Bartels et al., 2016) combined 13 trials with 1,190 people with knee or hip osteoarthritis. After courses of up to 12 weeks, participants rated pain and disability about 5 points better (on a 0 to 100 scale) and quality of life 7 points better. The review authors describe this as a slight improvement based on moderate-quality evidence. Important: the trials tested water exercise, not front crawl.

Mental health: helpful, but the evidence is mixed

A meta-analysis of 18 trials (Tang et al., 2022, Frontiers in Psychiatry) found that water-based exercise improves mood and anxiety symptoms on average. For swimming alone, however, the effect was not statistically clear (the confidence interval included zero), and the studies vary a lot in quality and results. In short: many people say swimming does them good, but it should not be understood as an established treatment.

How much activity does an adult need?

The World Health Organization (2020 guidelines) recommends that adults do 150 to 300 minutes of moderate-intensity activity per week, or 75 to 150 minutes of vigorous activity, or an equivalent combination. It also recommends regular muscle-strengthening activity and less sitting. Depending on your pace, swimming can count as moderate or vigorous activity. For muscle strength, bones and balance, add strength exercises: swimming is a strong building block, but not everything.

Why front crawl? What we see in lessons

Here the research ends and practice begins. The studies above do not distinguish between strokes. What we observe in our lessons in Graz is experience, not a study:

  • Steady rhythm: Front crawl is a continuous movement with no glide pause. That makes longer intervals (for example 4 × 100 m) easy to plan, including for endurance training.
  • Whole body: Legs, trunk, shoulders and arms work together, and core tension is constantly required.
  • Relaxed neck position: Swimmers who do breaststroke with the head held high often strain the neck and lower back. In front crawl the head stays in the water and breathing is done to the side with body rotation.
  • Breathing as a learning task: Most adults do not struggle with their arms but with exhaling into the water. That is exactly what we train first.

Typical hurdles for adults: the legs sink, you run out of air, and the arms “cramp up” after 25 metres. All three usually have the same cause: too little exhaling under water and a head carried too high. With a calm body position and regular exhaling, 50 to 100 metres in one go is a realistic goal for many people after a few sessions – that is our teaching experience, not a study finding.

First steps to front crawl: an overview

  1. Face in the water, exhale: hum or blow bubbles until exhaling works without thinking.
  2. Glide and body position: push off the wall, arms extended, head neutral, eyes on the pool floor.
  3. Kick from the hip: small, loose movements, not from the knee.
  4. Arm stroke and rotation: pull alternately; the body rolls slightly with it.
  5. Breathe to the side: while exhaling, turn the head with the body rotation; do not lift it.

This is only the outline – your instructor sees the details right at the pool. When you start with front crawl, short sessions (for example 20 to 30 minutes) help more than one long, exhausting hour.

Who should be careful?

Swimming is easy on the joints, but it is not automatically right for every situation. Talk to your doctor first if you have cardiovascular disease, untreated high blood pressure or acute shoulder problems. Repeated overhead movements can strain the shoulders, especially with very high training volume or poor technique. If something hurts, stop and have your technique checked.

Adult swimming lessons in Graz

Whether you want to learn front crawl from scratch or improve your technique: we teach privately 1:1 or 1:2 at the Bad zur Sonne pool. You can find more on the page Private lessons for adults (in German). If you prefer flexibility, there is the Flex Pass (in German), and you can see free slots directly in the booking calendar.

See available slots →

Frequently asked questions

Is front crawl healthier than breaststroke?

There are no reliable studies on this. The research above looks at swimming overall. For health, what matters most is that you swim regularly. Front crawl can be practical for endurance training, but breaststroke is a good choice too.

How often per week should I swim?

The WHO recommends 150 to 300 minutes of moderate-intensity activity per week. Swimming can contribute, for example two to three sessions of 30 to 45 minutes. Regularity matters most.

Can I learn front crawl at 50 or 60?

Yes. Age is rarely the problem; breathing and body position in the water are. With a calm build-up and technique before speed, it is possible at any age. If you have a medical condition, please clear it with your doctor first.

Does swimming help with weight loss?

Whether swimming alone helps with weight loss is not clear from the research. In the blood pressure trial above, for example, BMI and body fat did not change. Diet and overall activity play a big role.

Sources

This article does not replace medical advice. If you have health concerns, please speak to your GP.

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