Lactic Acid and Fat Burning

by Dr. Rob Orr |   Date Released : 20 Jul 2002
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Dr. Rob Orr

About the author: Dr. Rob Orr

Dr. Rob Orr joined the Australian Army in 1989 as an infantry soldier before transferring to the Defence Force Physical Training Instructor (PTI) stream. Serving for 10 years in this stream, Rob designed, developed, instructed and audited physical training programs and physical education courses for military personnel and fellow PTIs from both Australian and foreign defence forces. Rob subsequently transferred to the physiotherapy stream where his role included the clinical rehabilitation of defense members and project management of physical conditioning optimisation reviews. Serving as the Human Performance Officer for Special Operations before joining the team at Bond University in 2012, Rob continues to serve in the Army Reserve as a Human Performance Officer and as a sessional lecturer and consultant. Rob is also the co-chair of Tactical Strength and Conditioning (TSAC) – Australia.

Rob’s fields of research include physical conditioning and injury prevention for military and protective services from the initial trainee to the elite warrior. Generally focussing on the tactical population, Rob is actively involved in research with the Australian and foreign defense forces, several police departments (both national and international), and firefighters.

The results of Rob’s work and academic research have been published in newspapers, magazines and peer-reviewed journals and led to several health and safety awards. In addition, Dr. Orr serves as the section editor for the Australian Strength and Conditioning Journal – TSAC Section and the shadow editor for the National Strength and Conditioning Association (NSCA) TSAC Technical Report. Rob is regularly invited to deliver training workshops and present at conferences both nationally and internationally.

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Comments (2)

Orr, Dr. Rob | 23 Jul 2010, 14:58 PM

Hi Simran, Yes, in several ways. 1) High repetition is good for developing local muscle endurance and latic tolerance which has many uses –swimming, rock climbing, cycling etc for the general population are performed over a longer period and utilize high repetition work. 2) Can be used to improve relative strength [ability to move your own body weight – push ups and sit ups] .3) High repetition work uses lower weight so more repetitions can be performed over time. This in turn can lead to longer work outs and energy utilization [ you should utilize more energy doing a Body Pump Class than doing 5 exercises x 3 reps of 8-12 repetitions as the period of work is notably longer. 4) More repetitions means more practice of an exercise technique, very good for those learning a new exercises as they get lots of practice without using very heavy weight. 5) High repetitions can be a progression from heavy weight. First you lift mod to heavy weight and then lift the same weight for more repetitions. The next step in a periodised program is then to return to a heavier load (Absolute strength→ relative strength→ relative strength endurance). 5) After a while mod-heavy training becomes de-motivating and can lead to over use injuries – perfect time to switch to higher repetition work (The same occurs when high repetition work is performed continuously without rest). Fun In Training, Rob

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latif, simran | 16 Jul 2009, 18:19 PM

so, big compound movements (moderate-heavy LOAD) cause a greater metabolic disturbance post-activity, which leads to better fat burn in the long run right?

so does high rep training help in any way?

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