The Impact of Walking Speed on Health Benefits
Introduction:
Walking is
a widely accessible form of exercise that requires no special equipment or
memberships, making it an attractive choice for many individuals. However,
determining the optimal walking speed for achieving health benefits has
remained a question. Recent research, published in the British Journal of
Sports Medicine, offers insights into this matter. Let's delve into the
findings to understand the significance of walking speed in improving your
health.
Categorizing Walking Speeds:
The
meta-analysis included in the study examined the risk of developing type 2
diabetes among individuals who walked at different speeds. Participants either
self-reported their walking speed utilized activity trackers such as Fitbits
or completed timed walking tests at a clinic visit. The researchers categorized
the walking speeds as follows:
1. Easy or
casual walking: Less than 2 miles per hour (30:00 per mile)
2. Average
or normal walking: 2-3 miles per hour (20:00-30:00 per mile), which is
equivalent to the speed used by Google Maps for estimating walking travel time.
3. Fairly
brisk walking: 3-4 miles per hour (15:00-20:00 per mile)
4.
Brisk/striding walking: 4 miles per hour or faster (15:00 per mile)
It's
important to note that individual factors, such as leg length, can influence
personal walking speeds. Generally, most people find it challenging to walk
faster than 4 miles per hour without transitioning into a run.
Impact on Type 2 Diabetes Risk:
The
analysis revealed that individuals who walked at an average or fairly brisk
pace had a lower risk of developing type 2 diabetes in the long term. The
faster the walking speed, the greater the benefits observed. Brisk/striding
walking was associated with a significant 39% reduction in the risk of type 2
diabetes compared to easy or casual walking. The average follow-up period for
the participants was eight years.
While these
results indicate the importance of walking faster than 2 miles per hour, the
authors caution that the findings have a "low to moderate certainty"
due to potential biases in some of the included studies. Therefore, it is
advisable to interpret these results with some caution.
The Significance of Walking Speed:
Previous
studies have also explored the connection between walking speed and various health
outcomes. Walking more quickly has been linked to a lower incidence of
dementia, strokes, cardiovascular disease, and cognitive loss. However, it
remains unclear whether walking speed itself directly protects against these
conditions or simply serves as an indicator of overall health.
Physical
therapists conducting a 2015 review noted that walking speed reflects an
individual's functional capacity and general health status. Moreover, it has
been shown to predict a range of outcomes, including rehabilitation response,
frailty, cognitive decline, falls, hospitalization, and mortality. Exercise is
known to improve overall health and physical abilities, and walking at an
appropriate speed qualifies as cardiovascular exercise. A normal walking speed
of 2.5 miles per hour is considered moderate exercise, recommended for at least
150 minutes per week or around 20-30 minutes per day. Engaging in jogging or
fast walking can contribute to the recommended "vigorous" exercise
minutes, which count double.
Importance of Regular Exercise:
While there
is no perfect measurement for the amount of exercise required for optimal
health, step counting has gained popularity due to its simplicity. Using
pedometers, smartwatches, or smartphones, individuals can easily track their
steps. Walking speed plays a role here as well, as faster walking translates to
more steps taken.
It is worth
noting that the commonly mentioned goal of 10,000 steps per day may not be
universally applicable. The number of steps required to improve health varies
across studies and depends on how health-related outcomes are defined. Medical
and fitness professionals generally advise individuals to walk as much as
possible, with the understanding that walking speed tends to increase as
fitness levels improve.
Conclusion:
Determining
the ideal walking speed for reaping health benefits is an ongoing area of
research. The recent meta-analysis emphasizes the importance of walking at a
pace faster than 2 miles per hour for reducing the risk of type 2 diabetes.
However, it is crucial to consider the limitations of the study and the
potential influence of overall health on walking speed. Engaging in regular
exercise, including brisk walking, is beneficial for overall health and can be
tailored to personal fitness levels. As we continue to explore the relationship
between walking speed and health outcomes, it is evident that incorporating
walking into our daily routines can contribute to improved well-being.
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