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The North Face Glacier 1/4 Zip Long-Sleeve - Girls'
The North Face girls' Glacier ¼ zip long sleeve shirt is a great layer for really cold winter days. Sometimes a light base layer just isn't enough. Layer this shirt on top of a light base layer, and under a jacket for a warm, moisture-wicking system that'll keep her on the slopes all day long. The quarter zip neck allows for venting and makes for easy-on, easy-off over other layers.
$39.95 
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Training Tips
For runners looking to get the maximum benefit from hill training, as you sprint to the top of the hill have your arms pumping faster and faster. Once you get to the top, continue on increasing your speed as much as possible.
After each interval, take your pulse rate by counting the number of beats at your wrist or neck for 15 seconds. Multiply that result by four to get your beats per minute. Your next interval should start before your heart rate is less than 60% of your maximum.
The four components of good fitness include flexibility, muscular endurance, muscular strength, and cardiorespiratory endurance. For optimum health, include at least two of these groups in three workouts per week.
Your fitness level will improve by overloading, working your body hard enough to stimulate the body, progression, increasing the frequency, intensity, and duration of exercise over time, and regularity, working out frequently, at least three times a week.
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