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Wouldn't this be a powerful argument against heavy duty weight training? I would think that no one would want to encourage stiffened (hardened?) arteries. Have any studies been done to see whether weight lifters have a greater propensity for strokes than the general population?View Thread


What I am noticing is that within 5-10 second of the time that I speed up I feel a burn in my quadriceps which is, as I understand it, a buildup of lactic acid in the muscles. This continues until the point that I slow down and within 15-20 seconds of that time my pulse rate increases substantially but the burn disappears.
I am wondering what is happening here and what the physiological process is. I don't understand where lactic acid comes from in the first place and how the "burn" disappears at the end. Is my increased breathing and pulse rate somehow changing the chemistry in the muscles? Not the biggest problem in the world but I'd appreciate any information. Is this type of cardio (alternating fast and slow over a half hour or so a good way to go?View Thread


As far as I can tell I need to work on the deltoid muscles to help out with this and have tried out several of the machines at the YMCA. One was labelled "lateral raise" and says it exercises the deltoid and trapezius muscles. There is also a shoulder press machine which requires me to push a weight straight up.
Are there any other exercises that I should be considering? I'm not trying to bulk up necessarily but I do want to get in good enough condition that I don't drop the kid accidentally.View Thread
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