Fernandez-Fernandez et al 2011 measured groups of competitive male tennis players. They showed that HIIT training increased VO2peak and tennis specific endurance but had no effect on jumping or sprinting. Repeated sprint training demonstrated an increase in VO2peak but not as large as the HIIT. It did improve jumping and sprinting abilities but only had(…)
Hanson et al 2011 had 10 recreational runners run on a treadmill and over ground in shoes and barefoot. For each condition, subjects ran for 6min at 70% of VO2max. VO2, HR and RPE were assessed during and after each run. In both the treadmill and over ground running, wearing shoes increased VO2 demands (p(…)
Cardoso et al 2010 completed a literature review of the acute and chronic effects the different types of exercise had on hypertension. Extensive studies of the acute and chronic effects of moderate and intense aerobic activity were found. Interestingly, while some data indicated that low-intensity resistance training would help hypertensive patients, only 2 studies using(…)
Caminiti et al 2010 compared elderly adults in a walking program and elderly adults walking and doing tai chi. Those who underwent the walking with tai chi program demonstrated increased 6 min. walk distance, increased max. voluntary contraction of quadriceps and improved sense of well-being by QOL questionnaire. Tai chi is a relatively cheap medical(…)
We have spoken a little here about the concept VO2max. However, we would like to talk a little more in detail about how to train your VO2max i.e. your aerobic power, by introducing two basic fitness concepts: Vmax (also known as vVO2max), and Tmax. Having a good VO2max is important, however it does not confer success(…)
Treloar and Billing 2011 wanted to determine if load effects sprint time and by how much. They had 17 US Army infantry soldiers run 5 30m sprints unweighted and weighted. Unweighted was in a t-shirt and shorts, weighted was weapon, helmet, body armour and combat kit- totalling to 22kg (48.4lb). It was found that with(…)
Sothmann et al. (1992) had 10 firefighters wear heart rate monitors and oxygen consumption equipment while responding to actual fires. Lab testing to determine HR max and max VO2 had previously been completed. It was found that during an emergency, the firefighters worked at 88% of max HR for 15 minutes with a VO2 of(…)
Many people are curious about running with a weight vest or loaded pack. First, unless you have excellent running form- do not attempt this. It is a very easy way to destroy your ankles, knees, hips and back. I have seen many soldiers, firefighters and weekend warriors limp in and out of my clinic with(…)